mirror of https://github.com/espruino/BangleApps
6808 lines
249 KiB
JavaScript
6808 lines
249 KiB
JavaScript
// EspruinoTools bundle (https://github.com/espruino/EspruinoTools)
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// Created with https://github.com/espruino/EspruinoWebIDE/blob/gh-pages/extras/create_espruinotools_js.sh
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// Based on EspruinoWebIDE 0.73.7
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/**
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Copyright 2014 Gordon Williams (gw@pur3.co.uk)
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This Source Code is subject to the terms of the Mozilla Public
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License, v2.0. If a copy of the MPL was not distributed with this
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file, You can obtain one at http://mozilla.org/MPL/2.0/.
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------------------------------------------------------------------
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Initialisation code
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------------------------------------------------------------------
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**/
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"use strict";
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var Espruino;
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(function() {
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/** List of processors. These are functions that are called one
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* after the other with the data received from the last one.
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*
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* Common processors are:
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*
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* jsCodeChanged - called when the code in the editor changes with {code}
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* sending - sending code to Espruino (no data)
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* transformForEspruino - transform code ready to be sent to Espruino
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* transformModuleForEspruino({code,name})
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* - transform module code before it's sent to Espruino with Modules.addCached (we only do this if we don't think it's been minified before)
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* connected - connected to Espruino (no data)
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* disconnected - disconnected from Espruino (no data)
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* environmentVar - Board's process.env loaded (object to be saved into Espruino.Env.environmentData)
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* boardJSONLoaded - Board's JSON was loaded into environmentVar
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* getModule - Called with data={moduleName:"foo", moduleCode:undefined} - moduleCode should be filled in if the module can be found
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* getURL - Called with data={url:"http://....", data:undefined) - data should be filled in if the URL is handled (See Espruino.Core.Utils.getURL to use this)
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* terminalClear - terminal has been cleared
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* terminalPrompt - we've received a '>' character (eg, `>` or `debug>`). The argument is the current line's contents.
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* terminalNewLine - When we get a new line on the terminal, this gets called with the last line's contents
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* debugMode - called with true or false when debug mode is entered or left
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* editorHover - called with { node : htmlNode, showTooltip : function(htmlNode) } when something is hovered over
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* notification - called with { mdg, type:"success","error"/"warning"/"info" }
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**/
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var processors = {};
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function init() {
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Espruino.Core.Config.loadConfiguration(function() {
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// Initialise all modules
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function initModule(modName, mod) {
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console.log("Initialising "+modName);
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if (mod.init !== undefined)
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mod.init();
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}
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var module;
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for (module in Espruino.Core) initModule(module, Espruino.Core[module]);
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for (module in Espruino.Plugins) initModule(module, Espruino.Plugins[module]);
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callProcessor("initialised", undefined, function() {
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// We need the delay because of background.js's url_handler...
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setTimeout(function() {
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Espruino.initialised = true;
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}, 1000);
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});
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});
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}
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// Automatically start up when all is loaded
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if (typeof document!=="undefined")
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document.addEventListener("DOMContentLoaded", init);
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/** Add a processor function of type function(data,callback) */
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function addProcessor(eventType, processor) {
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if (processors[eventType]===undefined)
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processors[eventType] = [];
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processors[eventType].push(processor);
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}
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/** Call a processor function */
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function callProcessor(eventType, data, callback) {
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var p = processors[eventType];
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// no processors
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if (p===undefined || p.length==0) {
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if (callback!==undefined) callback(data);
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return;
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}
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// now go through all processors
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var n = 0;
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var cbCalled = false;
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var cb = function(inData) {
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if (cbCalled) throw new Error("Internal error in "+eventType+" processor. Callback is called TWICE.");
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cbCalled = true;
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if (n < p.length) {
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cbCalled = false;
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p[n++](inData, cb);
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} else {
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if (callback!==undefined) callback(inData);
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}
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};
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cb(data);
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}
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// -----------------------------------
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Espruino = {
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Core : { },
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Plugins : { },
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addProcessor : addProcessor,
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callProcessor : callProcessor,
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initialised : false,
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init : init, // just in case we need to initialise this by hand
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};
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return Espruino;
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})();
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Espruino.Core.Notifications = {
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success : function(e) { console.log(e); },
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error : function(e) { console.error(e); },
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warning : function(e) { console.warn(e); },
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info : function(e) { console.log(e); },
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};
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Espruino.Core.Status = {
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setStatus : function(e,len) { console.log(e); },
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hasProgress : function() { return false; },
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incrementProgress : function(amt) {}
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};
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var acorn = (function(){ var exports={};var module={};
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(factory((global.acorn = {})));
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}(this, (function (exports) { 'use strict';
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// Reserved word lists for various dialects of the language
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var reservedWords = {
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3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",
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5: "class enum extends super const export import",
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6: "enum",
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strict: "implements interface let package private protected public static yield",
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strictBind: "eval arguments"
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};
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// And the keywords
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var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
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var keywords = {
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5: ecma5AndLessKeywords,
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6: ecma5AndLessKeywords + " const class extends export import super"
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};
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var keywordRelationalOperator = /^in(stanceof)?$/;
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// ## Character categories
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// Big ugly regular expressions that match characters in the
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// whitespace, identifier, and identifier-start categories. These
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// are only applied when a character is found to actually have a
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// code point above 128.
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// Generated by `bin/generate-identifier-regex.js`.
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var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0-\u08b4\u08b6-\u08bd\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fd5\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7ae\ua7b0-\ua7b7\ua7f7-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab65\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
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var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d4-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c03\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d01-\u0d03\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf2-\u1cf4\u1cf8\u1cf9\u1dc0-\u1df5\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua900-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";
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var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
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var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
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nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
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// These are a run-length and offset encoded representation of the
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// >0xffff code points that are a valid part of identifiers. The
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// offset starts at 0x10000, and each pair of numbers represents an
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// offset to the next range, and then a size of the range. They were
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// generated by bin/generate-identifier-regex.js
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// eslint-disable-next-line comma-spacing
|
|
var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,17,26,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,26,45,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,785,52,76,44,33,24,27,35,42,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,54,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,86,25,391,63,32,0,449,56,264,8,2,36,18,0,50,29,881,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,881,68,12,0,67,12,65,0,32,6124,20,754,9486,1,3071,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,4149,196,60,67,1213,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,10591,541];
|
|
|
|
// eslint-disable-next-line comma-spacing
|
|
var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,1306,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,52,0,13,2,49,13,10,2,4,9,83,11,7,0,161,11,6,9,7,3,57,0,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,87,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,423,9,838,7,2,7,17,9,57,21,2,13,19882,9,135,4,60,6,26,9,1016,45,17,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,2214,6,110,6,6,9,792487,239];
|
|
|
|
// This has a complexity linear to the value of the code. The
|
|
// assumption is that looking up astral identifier characters is
|
|
// rare.
|
|
function isInAstralSet(code, set) {
|
|
var pos = 0x10000;
|
|
for (var i = 0; i < set.length; i += 2) {
|
|
pos += set[i];
|
|
if (pos > code) { return false }
|
|
pos += set[i + 1];
|
|
if (pos >= code) { return true }
|
|
}
|
|
}
|
|
|
|
// Test whether a given character code starts an identifier.
|
|
|
|
function isIdentifierStart(code, astral) {
|
|
if (code < 65) { return code === 36 }
|
|
if (code < 91) { return true }
|
|
if (code < 97) { return code === 95 }
|
|
if (code < 123) { return true }
|
|
if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
|
|
if (astral === false) { return false }
|
|
return isInAstralSet(code, astralIdentifierStartCodes)
|
|
}
|
|
|
|
// Test whether a given character is part of an identifier.
|
|
|
|
function isIdentifierChar(code, astral) {
|
|
if (code < 48) { return code === 36 }
|
|
if (code < 58) { return true }
|
|
if (code < 65) { return false }
|
|
if (code < 91) { return true }
|
|
if (code < 97) { return code === 95 }
|
|
if (code < 123) { return true }
|
|
if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }
|
|
if (astral === false) { return false }
|
|
return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
|
|
}
|
|
|
|
// ## Token types
|
|
|
|
// The assignment of fine-grained, information-carrying type objects
|
|
// allows the tokenizer to store the information it has about a
|
|
// token in a way that is very cheap for the parser to look up.
|
|
|
|
// All token type variables start with an underscore, to make them
|
|
// easy to recognize.
|
|
|
|
// The `beforeExpr` property is used to disambiguate between regular
|
|
// expressions and divisions. It is set on all token types that can
|
|
// be followed by an expression (thus, a slash after them would be a
|
|
// regular expression).
|
|
//
|
|
// The `startsExpr` property is used to check if the token ends a
|
|
// `yield` expression. It is set on all token types that either can
|
|
// directly start an expression (like a quotation mark) or can
|
|
// continue an expression (like the body of a string).
|
|
//
|
|
// `isLoop` marks a keyword as starting a loop, which is important
|
|
// to know when parsing a label, in order to allow or disallow
|
|
// continue jumps to that label.
|
|
|
|
var TokenType = function TokenType(label, conf) {
|
|
if ( conf === void 0 ) conf = {};
|
|
|
|
this.label = label;
|
|
this.keyword = conf.keyword;
|
|
this.beforeExpr = !!conf.beforeExpr;
|
|
this.startsExpr = !!conf.startsExpr;
|
|
this.isLoop = !!conf.isLoop;
|
|
this.isAssign = !!conf.isAssign;
|
|
this.prefix = !!conf.prefix;
|
|
this.postfix = !!conf.postfix;
|
|
this.binop = conf.binop || null;
|
|
this.updateContext = null;
|
|
};
|
|
|
|
function binop(name, prec) {
|
|
return new TokenType(name, {beforeExpr: true, binop: prec})
|
|
}
|
|
var beforeExpr = {beforeExpr: true};
|
|
var startsExpr = {startsExpr: true};
|
|
|
|
// Map keyword names to token types.
|
|
|
|
var keywords$1 = {};
|
|
|
|
// Succinct definitions of keyword token types
|
|
function kw(name, options) {
|
|
if ( options === void 0 ) options = {};
|
|
|
|
options.keyword = name;
|
|
return keywords$1[name] = new TokenType(name, options)
|
|
}
|
|
|
|
var types = {
|
|
num: new TokenType("num", startsExpr),
|
|
regexp: new TokenType("regexp", startsExpr),
|
|
string: new TokenType("string", startsExpr),
|
|
name: new TokenType("name", startsExpr),
|
|
eof: new TokenType("eof"),
|
|
|
|
// Punctuation token types.
|
|
bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
|
|
bracketR: new TokenType("]"),
|
|
braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
|
|
braceR: new TokenType("}"),
|
|
parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
|
|
parenR: new TokenType(")"),
|
|
comma: new TokenType(",", beforeExpr),
|
|
semi: new TokenType(";", beforeExpr),
|
|
colon: new TokenType(":", beforeExpr),
|
|
dot: new TokenType("."),
|
|
question: new TokenType("?", beforeExpr),
|
|
arrow: new TokenType("=>", beforeExpr),
|
|
template: new TokenType("template"),
|
|
invalidTemplate: new TokenType("invalidTemplate"),
|
|
ellipsis: new TokenType("...", beforeExpr),
|
|
backQuote: new TokenType("`", startsExpr),
|
|
dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),
|
|
|
|
// Operators. These carry several kinds of properties to help the
|
|
// parser use them properly (the presence of these properties is
|
|
// what categorizes them as operators).
|
|
//
|
|
// `binop`, when present, specifies that this operator is a binary
|
|
// operator, and will refer to its precedence.
|
|
//
|
|
// `prefix` and `postfix` mark the operator as a prefix or postfix
|
|
// unary operator.
|
|
//
|
|
// `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
|
|
// binary operators with a very low precedence, that should result
|
|
// in AssignmentExpression nodes.
|
|
|
|
eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
|
|
assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
|
|
incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
|
|
prefix: new TokenType("!/~", {beforeExpr: true, prefix: true, startsExpr: true}),
|
|
logicalOR: binop("||", 1),
|
|
logicalAND: binop("&&", 2),
|
|
bitwiseOR: binop("|", 3),
|
|
bitwiseXOR: binop("^", 4),
|
|
bitwiseAND: binop("&", 5),
|
|
equality: binop("==/!=/===/!==", 6),
|
|
relational: binop("</>/<=/>=", 7),
|
|
bitShift: binop("<</>>/>>>", 8),
|
|
plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
|
|
modulo: binop("%", 10),
|
|
star: binop("*", 10),
|
|
slash: binop("/", 10),
|
|
starstar: new TokenType("**", {beforeExpr: true}),
|
|
|
|
// Keyword token types.
|
|
_break: kw("break"),
|
|
_case: kw("case", beforeExpr),
|
|
_catch: kw("catch"),
|
|
_continue: kw("continue"),
|
|
_debugger: kw("debugger"),
|
|
_default: kw("default", beforeExpr),
|
|
_do: kw("do", {isLoop: true, beforeExpr: true}),
|
|
_else: kw("else", beforeExpr),
|
|
_finally: kw("finally"),
|
|
_for: kw("for", {isLoop: true}),
|
|
_function: kw("function", startsExpr),
|
|
_if: kw("if"),
|
|
_return: kw("return", beforeExpr),
|
|
_switch: kw("switch"),
|
|
_throw: kw("throw", beforeExpr),
|
|
_try: kw("try"),
|
|
_var: kw("var"),
|
|
_const: kw("const"),
|
|
_while: kw("while", {isLoop: true}),
|
|
_with: kw("with"),
|
|
_new: kw("new", {beforeExpr: true, startsExpr: true}),
|
|
_this: kw("this", startsExpr),
|
|
_super: kw("super", startsExpr),
|
|
_class: kw("class", startsExpr),
|
|
_extends: kw("extends", beforeExpr),
|
|
_export: kw("export"),
|
|
_import: kw("import"),
|
|
_null: kw("null", startsExpr),
|
|
_true: kw("true", startsExpr),
|
|
_false: kw("false", startsExpr),
|
|
_in: kw("in", {beforeExpr: true, binop: 7}),
|
|
_instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
|
|
_typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
|
|
_void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
|
|
_delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
|
|
};
|
|
|
|
// Matches a whole line break (where CRLF is considered a single
|
|
// line break). Used to count lines.
|
|
|
|
var lineBreak = /\r\n?|\n|\u2028|\u2029/;
|
|
var lineBreakG = new RegExp(lineBreak.source, "g");
|
|
|
|
function isNewLine(code) {
|
|
return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
|
|
}
|
|
|
|
var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
|
|
|
|
var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g;
|
|
|
|
var ref = Object.prototype;
|
|
var hasOwnProperty = ref.hasOwnProperty;
|
|
var toString = ref.toString;
|
|
|
|
// Checks if an object has a property.
|
|
|
|
function has(obj, propName) {
|
|
return hasOwnProperty.call(obj, propName)
|
|
}
|
|
|
|
var isArray = Array.isArray || (function (obj) { return (
|
|
toString.call(obj) === "[object Array]"
|
|
); });
|
|
|
|
// These are used when `options.locations` is on, for the
|
|
// `startLoc` and `endLoc` properties.
|
|
|
|
var Position = function Position(line, col) {
|
|
this.line = line;
|
|
this.column = col;
|
|
};
|
|
|
|
Position.prototype.offset = function offset (n) {
|
|
return new Position(this.line, this.column + n)
|
|
};
|
|
|
|
var SourceLocation = function SourceLocation(p, start, end) {
|
|
this.start = start;
|
|
this.end = end;
|
|
if (p.sourceFile !== null) { this.source = p.sourceFile; }
|
|
};
|
|
|
|
// The `getLineInfo` function is mostly useful when the
|
|
// `locations` option is off (for performance reasons) and you
|
|
// want to find the line/column position for a given character
|
|
// offset. `input` should be the code string that the offset refers
|
|
// into.
|
|
|
|
function getLineInfo(input, offset) {
|
|
for (var line = 1, cur = 0;;) {
|
|
lineBreakG.lastIndex = cur;
|
|
var match = lineBreakG.exec(input);
|
|
if (match && match.index < offset) {
|
|
++line;
|
|
cur = match.index + match[0].length;
|
|
} else {
|
|
return new Position(line, offset - cur)
|
|
}
|
|
}
|
|
}
|
|
|
|
// A second optional argument can be given to further configure
|
|
// the parser process. These options are recognized:
|
|
|
|
var defaultOptions = {
|
|
// `ecmaVersion` indicates the ECMAScript version to parse. Must
|
|
// be either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support
|
|
// for strict mode, the set of reserved words, and support for
|
|
// new syntax features. The default is 7.
|
|
ecmaVersion: 7,
|
|
// `sourceType` indicates the mode the code should be parsed in.
|
|
// Can be either `"script"` or `"module"`. This influences global
|
|
// strict mode and parsing of `import` and `export` declarations.
|
|
sourceType: "script",
|
|
// `onInsertedSemicolon` can be a callback that will be called
|
|
// when a semicolon is automatically inserted. It will be passed
|
|
// th position of the comma as an offset, and if `locations` is
|
|
// enabled, it is given the location as a `{line, column}` object
|
|
// as second argument.
|
|
onInsertedSemicolon: null,
|
|
// `onTrailingComma` is similar to `onInsertedSemicolon`, but for
|
|
// trailing commas.
|
|
onTrailingComma: null,
|
|
// By default, reserved words are only enforced if ecmaVersion >= 5.
|
|
// Set `allowReserved` to a boolean value to explicitly turn this on
|
|
// an off. When this option has the value "never", reserved words
|
|
// and keywords can also not be used as property names.
|
|
allowReserved: null,
|
|
// When enabled, a return at the top level is not considered an
|
|
// error.
|
|
allowReturnOutsideFunction: false,
|
|
// When enabled, import/export statements are not constrained to
|
|
// appearing at the top of the program.
|
|
allowImportExportEverywhere: false,
|
|
// When enabled, hashbang directive in the beginning of file
|
|
// is allowed and treated as a line comment.
|
|
allowHashBang: false,
|
|
// When `locations` is on, `loc` properties holding objects with
|
|
// `start` and `end` properties in `{line, column}` form (with
|
|
// line being 1-based and column 0-based) will be attached to the
|
|
// nodes.
|
|
locations: false,
|
|
// A function can be passed as `onToken` option, which will
|
|
// cause Acorn to call that function with object in the same
|
|
// format as tokens returned from `tokenizer().getToken()`. Note
|
|
// that you are not allowed to call the parser from the
|
|
// callback—that will corrupt its internal state.
|
|
onToken: null,
|
|
// A function can be passed as `onComment` option, which will
|
|
// cause Acorn to call that function with `(block, text, start,
|
|
// end)` parameters whenever a comment is skipped. `block` is a
|
|
// boolean indicating whether this is a block (`/* */`) comment,
|
|
// `text` is the content of the comment, and `start` and `end` are
|
|
// character offsets that denote the start and end of the comment.
|
|
// When the `locations` option is on, two more parameters are
|
|
// passed, the full `{line, column}` locations of the start and
|
|
// end of the comments. Note that you are not allowed to call the
|
|
// parser from the callback—that will corrupt its internal state.
|
|
onComment: null,
|
|
// Nodes have their start and end characters offsets recorded in
|
|
// `start` and `end` properties (directly on the node, rather than
|
|
// the `loc` object, which holds line/column data. To also add a
|
|
// [semi-standardized][range] `range` property holding a `[start,
|
|
// end]` array with the same numbers, set the `ranges` option to
|
|
// `true`.
|
|
//
|
|
// [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
|
|
ranges: false,
|
|
// It is possible to parse multiple files into a single AST by
|
|
// passing the tree produced by parsing the first file as
|
|
// `program` option in subsequent parses. This will add the
|
|
// toplevel forms of the parsed file to the `Program` (top) node
|
|
// of an existing parse tree.
|
|
program: null,
|
|
// When `locations` is on, you can pass this to record the source
|
|
// file in every node's `loc` object.
|
|
sourceFile: null,
|
|
// This value, if given, is stored in every node, whether
|
|
// `locations` is on or off.
|
|
directSourceFile: null,
|
|
// When enabled, parenthesized expressions are represented by
|
|
// (non-standard) ParenthesizedExpression nodes
|
|
preserveParens: false,
|
|
plugins: {}
|
|
};
|
|
|
|
// Interpret and default an options object
|
|
|
|
function getOptions(opts) {
|
|
var options = {};
|
|
|
|
for (var opt in defaultOptions)
|
|
{ options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]; }
|
|
|
|
if (options.ecmaVersion >= 2015)
|
|
{ options.ecmaVersion -= 2009; }
|
|
|
|
if (options.allowReserved == null)
|
|
{ options.allowReserved = options.ecmaVersion < 5; }
|
|
|
|
if (isArray(options.onToken)) {
|
|
var tokens = options.onToken;
|
|
options.onToken = function (token) { return tokens.push(token); };
|
|
}
|
|
if (isArray(options.onComment))
|
|
{ options.onComment = pushComment(options, options.onComment); }
|
|
|
|
return options
|
|
}
|
|
|
|
function pushComment(options, array) {
|
|
return function(block, text, start, end, startLoc, endLoc) {
|
|
var comment = {
|
|
type: block ? "Block" : "Line",
|
|
value: text,
|
|
start: start,
|
|
end: end
|
|
};
|
|
if (options.locations)
|
|
{ comment.loc = new SourceLocation(this, startLoc, endLoc); }
|
|
if (options.ranges)
|
|
{ comment.range = [start, end]; }
|
|
array.push(comment);
|
|
}
|
|
}
|
|
|
|
// Registered plugins
|
|
var plugins = {};
|
|
|
|
function keywordRegexp(words) {
|
|
return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$")
|
|
}
|
|
|
|
var Parser = function Parser(options, input, startPos) {
|
|
this.options = options = getOptions(options);
|
|
this.sourceFile = options.sourceFile;
|
|
this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5]);
|
|
var reserved = "";
|
|
if (!options.allowReserved) {
|
|
for (var v = options.ecmaVersion;; v--)
|
|
{ if (reserved = reservedWords[v]) { break } }
|
|
if (options.sourceType == "module") { reserved += " await"; }
|
|
}
|
|
this.reservedWords = keywordRegexp(reserved);
|
|
var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
|
|
this.reservedWordsStrict = keywordRegexp(reservedStrict);
|
|
this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind);
|
|
this.input = String(input);
|
|
|
|
// Used to signal to callers of `readWord1` whether the word
|
|
// contained any escape sequences. This is needed because words with
|
|
// escape sequences must not be interpreted as keywords.
|
|
this.containsEsc = false;
|
|
|
|
// Load plugins
|
|
this.loadPlugins(options.plugins);
|
|
|
|
// Set up token state
|
|
|
|
// The current position of the tokenizer in the input.
|
|
if (startPos) {
|
|
this.pos = startPos;
|
|
this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
|
|
this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
|
|
} else {
|
|
this.pos = this.lineStart = 0;
|
|
this.curLine = 1;
|
|
}
|
|
|
|
// Properties of the current token:
|
|
// Its type
|
|
this.type = types.eof;
|
|
// For tokens that include more information than their type, the value
|
|
this.value = null;
|
|
// Its start and end offset
|
|
this.start = this.end = this.pos;
|
|
// And, if locations are used, the {line, column} object
|
|
// corresponding to those offsets
|
|
this.startLoc = this.endLoc = this.curPosition();
|
|
|
|
// Position information for the previous token
|
|
this.lastTokEndLoc = this.lastTokStartLoc = null;
|
|
this.lastTokStart = this.lastTokEnd = this.pos;
|
|
|
|
// The context stack is used to superficially track syntactic
|
|
// context to predict whether a regular expression is allowed in a
|
|
// given position.
|
|
this.context = this.initialContext();
|
|
this.exprAllowed = true;
|
|
|
|
// Figure out if it's a module code.
|
|
this.inModule = options.sourceType === "module";
|
|
this.strict = this.inModule || this.strictDirective(this.pos);
|
|
|
|
// Used to signify the start of a potential arrow function
|
|
this.potentialArrowAt = -1;
|
|
|
|
// Flags to track whether we are in a function, a generator, an async function.
|
|
this.inFunction = this.inGenerator = this.inAsync = false;
|
|
// Positions to delayed-check that yield/await does not exist in default parameters.
|
|
this.yieldPos = this.awaitPos = 0;
|
|
// Labels in scope.
|
|
this.labels = [];
|
|
|
|
// If enabled, skip leading hashbang line.
|
|
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
|
|
{ this.skipLineComment(2); }
|
|
|
|
// Scope tracking for duplicate variable names (see scope.js)
|
|
this.scopeStack = [];
|
|
this.enterFunctionScope();
|
|
};
|
|
|
|
// DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
|
|
Parser.prototype.isKeyword = function isKeyword (word) { return this.keywords.test(word) };
|
|
Parser.prototype.isReservedWord = function isReservedWord (word) { return this.reservedWords.test(word) };
|
|
|
|
Parser.prototype.extend = function extend (name, f) {
|
|
this[name] = f(this[name]);
|
|
};
|
|
|
|
Parser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
|
|
var this$1 = this;
|
|
|
|
for (var name in pluginConfigs) {
|
|
var plugin = plugins[name];
|
|
if (!plugin) { throw new Error("Plugin '" + name + "' not found") }
|
|
plugin(this$1, pluginConfigs[name]);
|
|
}
|
|
};
|
|
|
|
Parser.prototype.parse = function parse () {
|
|
var node = this.options.program || this.startNode();
|
|
this.nextToken();
|
|
return this.parseTopLevel(node)
|
|
};
|
|
|
|
var pp = Parser.prototype;
|
|
|
|
// ## Parser utilities
|
|
|
|
var literal = /^(?:'((?:\\.|[^'])*?)'|"((?:\\.|[^"])*?)"|;)/;
|
|
pp.strictDirective = function(start) {
|
|
var this$1 = this;
|
|
|
|
for (;;) {
|
|
skipWhiteSpace.lastIndex = start;
|
|
start += skipWhiteSpace.exec(this$1.input)[0].length;
|
|
var match = literal.exec(this$1.input.slice(start));
|
|
if (!match) { return false }
|
|
if ((match[1] || match[2]) == "use strict") { return true }
|
|
start += match[0].length;
|
|
}
|
|
};
|
|
|
|
// Predicate that tests whether the next token is of the given
|
|
// type, and if yes, consumes it as a side effect.
|
|
|
|
pp.eat = function(type) {
|
|
if (this.type === type) {
|
|
this.next();
|
|
return true
|
|
} else {
|
|
return false
|
|
}
|
|
};
|
|
|
|
// Tests whether parsed token is a contextual keyword.
|
|
|
|
pp.isContextual = function(name) {
|
|
return this.type === types.name && this.value === name && !this.containsEsc
|
|
};
|
|
|
|
// Consumes contextual keyword if possible.
|
|
|
|
pp.eatContextual = function(name) {
|
|
if (!this.isContextual(name)) { return false }
|
|
this.next();
|
|
return true
|
|
};
|
|
|
|
// Asserts that following token is given contextual keyword.
|
|
|
|
pp.expectContextual = function(name) {
|
|
if (!this.eatContextual(name)) { this.unexpected(); }
|
|
};
|
|
|
|
// Test whether a semicolon can be inserted at the current position.
|
|
|
|
pp.canInsertSemicolon = function() {
|
|
return this.type === types.eof ||
|
|
this.type === types.braceR ||
|
|
lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
|
|
};
|
|
|
|
pp.insertSemicolon = function() {
|
|
if (this.canInsertSemicolon()) {
|
|
if (this.options.onInsertedSemicolon)
|
|
{ this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
|
|
return true
|
|
}
|
|
};
|
|
|
|
// Consume a semicolon, or, failing that, see if we are allowed to
|
|
// pretend that there is a semicolon at this position.
|
|
|
|
pp.semicolon = function() {
|
|
if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
|
|
};
|
|
|
|
pp.afterTrailingComma = function(tokType, notNext) {
|
|
if (this.type == tokType) {
|
|
if (this.options.onTrailingComma)
|
|
{ this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
|
|
if (!notNext)
|
|
{ this.next(); }
|
|
return true
|
|
}
|
|
};
|
|
|
|
// Expect a token of a given type. If found, consume it, otherwise,
|
|
// raise an unexpected token error.
|
|
|
|
pp.expect = function(type) {
|
|
this.eat(type) || this.unexpected();
|
|
};
|
|
|
|
// Raise an unexpected token error.
|
|
|
|
pp.unexpected = function(pos) {
|
|
this.raise(pos != null ? pos : this.start, "Unexpected token");
|
|
};
|
|
|
|
function DestructuringErrors() {
|
|
this.shorthandAssign =
|
|
this.trailingComma =
|
|
this.parenthesizedAssign =
|
|
this.parenthesizedBind =
|
|
this.doubleProto =
|
|
-1;
|
|
}
|
|
|
|
pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
|
|
if (!refDestructuringErrors) { return }
|
|
if (refDestructuringErrors.trailingComma > -1)
|
|
{ this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
|
|
var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
|
|
if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
|
|
};
|
|
|
|
pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
|
|
if (!refDestructuringErrors) { return false }
|
|
var shorthandAssign = refDestructuringErrors.shorthandAssign;
|
|
var doubleProto = refDestructuringErrors.doubleProto;
|
|
if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 }
|
|
if (shorthandAssign >= 0)
|
|
{ this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns"); }
|
|
if (doubleProto >= 0)
|
|
{ this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
|
|
};
|
|
|
|
pp.checkYieldAwaitInDefaultParams = function() {
|
|
if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
|
|
{ this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
|
|
if (this.awaitPos)
|
|
{ this.raise(this.awaitPos, "Await expression cannot be a default value"); }
|
|
};
|
|
|
|
pp.isSimpleAssignTarget = function(expr) {
|
|
if (expr.type === "ParenthesizedExpression")
|
|
{ return this.isSimpleAssignTarget(expr.expression) }
|
|
return expr.type === "Identifier" || expr.type === "MemberExpression"
|
|
};
|
|
|
|
var pp$1 = Parser.prototype;
|
|
|
|
// ### Statement parsing
|
|
|
|
// Parse a program. Initializes the parser, reads any number of
|
|
// statements, and wraps them in a Program node. Optionally takes a
|
|
// `program` argument. If present, the statements will be appended
|
|
// to its body instead of creating a new node.
|
|
|
|
pp$1.parseTopLevel = function(node) {
|
|
var this$1 = this;
|
|
|
|
var exports = {};
|
|
if (!node.body) { node.body = []; }
|
|
while (this.type !== types.eof) {
|
|
var stmt = this$1.parseStatement(true, true, exports);
|
|
node.body.push(stmt);
|
|
}
|
|
this.adaptDirectivePrologue(node.body);
|
|
this.next();
|
|
if (this.options.ecmaVersion >= 6) {
|
|
node.sourceType = this.options.sourceType;
|
|
}
|
|
return this.finishNode(node, "Program")
|
|
};
|
|
|
|
var loopLabel = {kind: "loop"};
|
|
var switchLabel = {kind: "switch"};
|
|
|
|
pp$1.isLet = function() {
|
|
if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
|
|
skipWhiteSpace.lastIndex = this.pos;
|
|
var skip = skipWhiteSpace.exec(this.input);
|
|
var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
|
|
if (nextCh === 91 || nextCh == 123) { return true } // '{' and '['
|
|
if (isIdentifierStart(nextCh, true)) {
|
|
var pos = next + 1;
|
|
while (isIdentifierChar(this.input.charCodeAt(pos), true)) { ++pos; }
|
|
var ident = this.input.slice(next, pos);
|
|
if (!keywordRelationalOperator.test(ident)) { return true }
|
|
}
|
|
return false
|
|
};
|
|
|
|
// check 'async [no LineTerminator here] function'
|
|
// - 'async /*foo*/ function' is OK.
|
|
// - 'async /*\n*/ function' is invalid.
|
|
pp$1.isAsyncFunction = function() {
|
|
if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
|
|
{ return false }
|
|
|
|
skipWhiteSpace.lastIndex = this.pos;
|
|
var skip = skipWhiteSpace.exec(this.input);
|
|
var next = this.pos + skip[0].length;
|
|
return !lineBreak.test(this.input.slice(this.pos, next)) &&
|
|
this.input.slice(next, next + 8) === "function" &&
|
|
(next + 8 == this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
|
|
};
|
|
|
|
// Parse a single statement.
|
|
//
|
|
// If expecting a statement and finding a slash operator, parse a
|
|
// regular expression literal. This is to handle cases like
|
|
// `if (foo) /blah/.exec(foo)`, where looking at the previous token
|
|
// does not help.
|
|
|
|
pp$1.parseStatement = function(declaration, topLevel, exports) {
|
|
var starttype = this.type, node = this.startNode(), kind;
|
|
|
|
if (this.isLet()) {
|
|
starttype = types._var;
|
|
kind = "let";
|
|
}
|
|
|
|
// Most types of statements are recognized by the keyword they
|
|
// start with. Many are trivial to parse, some require a bit of
|
|
// complexity.
|
|
|
|
switch (starttype) {
|
|
case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
|
|
case types._debugger: return this.parseDebuggerStatement(node)
|
|
case types._do: return this.parseDoStatement(node)
|
|
case types._for: return this.parseForStatement(node)
|
|
case types._function:
|
|
if (!declaration && this.options.ecmaVersion >= 6) { this.unexpected(); }
|
|
return this.parseFunctionStatement(node, false)
|
|
case types._class:
|
|
if (!declaration) { this.unexpected(); }
|
|
return this.parseClass(node, true)
|
|
case types._if: return this.parseIfStatement(node)
|
|
case types._return: return this.parseReturnStatement(node)
|
|
case types._switch: return this.parseSwitchStatement(node)
|
|
case types._throw: return this.parseThrowStatement(node)
|
|
case types._try: return this.parseTryStatement(node)
|
|
case types._const: case types._var:
|
|
kind = kind || this.value;
|
|
if (!declaration && kind != "var") { this.unexpected(); }
|
|
return this.parseVarStatement(node, kind)
|
|
case types._while: return this.parseWhileStatement(node)
|
|
case types._with: return this.parseWithStatement(node)
|
|
case types.braceL: return this.parseBlock()
|
|
case types.semi: return this.parseEmptyStatement(node)
|
|
case types._export:
|
|
case types._import:
|
|
if (!this.options.allowImportExportEverywhere) {
|
|
if (!topLevel)
|
|
{ this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
|
|
if (!this.inModule)
|
|
{ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
|
|
}
|
|
return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)
|
|
|
|
// If the statement does not start with a statement keyword or a
|
|
// brace, it's an ExpressionStatement or LabeledStatement. We
|
|
// simply start parsing an expression, and afterwards, if the
|
|
// next token is a colon and the expression was a simple
|
|
// Identifier node, we switch to interpreting it as a label.
|
|
default:
|
|
if (this.isAsyncFunction()) {
|
|
if (!declaration) { this.unexpected(); }
|
|
this.next();
|
|
return this.parseFunctionStatement(node, true)
|
|
}
|
|
|
|
var maybeName = this.value, expr = this.parseExpression();
|
|
if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
|
|
{ return this.parseLabeledStatement(node, maybeName, expr) }
|
|
else { return this.parseExpressionStatement(node, expr) }
|
|
}
|
|
};
|
|
|
|
pp$1.parseBreakContinueStatement = function(node, keyword) {
|
|
var this$1 = this;
|
|
|
|
var isBreak = keyword == "break";
|
|
this.next();
|
|
if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
|
|
else if (this.type !== types.name) { this.unexpected(); }
|
|
else {
|
|
node.label = this.parseIdent();
|
|
this.semicolon();
|
|
}
|
|
|
|
// Verify that there is an actual destination to break or
|
|
// continue to.
|
|
var i = 0;
|
|
for (; i < this.labels.length; ++i) {
|
|
var lab = this$1.labels[i];
|
|
if (node.label == null || lab.name === node.label.name) {
|
|
if (lab.kind != null && (isBreak || lab.kind === "loop")) { break }
|
|
if (node.label && isBreak) { break }
|
|
}
|
|
}
|
|
if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); }
|
|
return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
|
|
};
|
|
|
|
pp$1.parseDebuggerStatement = function(node) {
|
|
this.next();
|
|
this.semicolon();
|
|
return this.finishNode(node, "DebuggerStatement")
|
|
};
|
|
|
|
pp$1.parseDoStatement = function(node) {
|
|
this.next();
|
|
this.labels.push(loopLabel);
|
|
node.body = this.parseStatement(false);
|
|
this.labels.pop();
|
|
this.expect(types._while);
|
|
node.test = this.parseParenExpression();
|
|
if (this.options.ecmaVersion >= 6)
|
|
{ this.eat(types.semi); }
|
|
else
|
|
{ this.semicolon(); }
|
|
return this.finishNode(node, "DoWhileStatement")
|
|
};
|
|
|
|
// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
|
|
// loop is non-trivial. Basically, we have to parse the init `var`
|
|
// statement or expression, disallowing the `in` operator (see
|
|
// the second parameter to `parseExpression`), and then check
|
|
// whether the next token is `in` or `of`. When there is no init
|
|
// part (semicolon immediately after the opening parenthesis), it
|
|
// is a regular `for` loop.
|
|
|
|
pp$1.parseForStatement = function(node) {
|
|
this.next();
|
|
var awaitAt = (this.options.ecmaVersion >= 9 && this.inAsync && this.eatContextual("await")) ? this.lastTokStart : -1;
|
|
this.labels.push(loopLabel);
|
|
this.enterLexicalScope();
|
|
this.expect(types.parenL);
|
|
if (this.type === types.semi) {
|
|
if (awaitAt > -1) { this.unexpected(awaitAt); }
|
|
return this.parseFor(node, null)
|
|
}
|
|
var isLet = this.isLet();
|
|
if (this.type === types._var || this.type === types._const || isLet) {
|
|
var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
|
|
this.next();
|
|
this.parseVar(init$1, true, kind);
|
|
this.finishNode(init$1, "VariableDeclaration");
|
|
if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1 &&
|
|
!(kind !== "var" && init$1.declarations[0].init)) {
|
|
if (this.options.ecmaVersion >= 9) {
|
|
if (this.type === types._in) {
|
|
if (awaitAt > -1) { this.unexpected(awaitAt); }
|
|
} else { node.await = awaitAt > -1; }
|
|
}
|
|
return this.parseForIn(node, init$1)
|
|
}
|
|
if (awaitAt > -1) { this.unexpected(awaitAt); }
|
|
return this.parseFor(node, init$1)
|
|
}
|
|
var refDestructuringErrors = new DestructuringErrors;
|
|
var init = this.parseExpression(true, refDestructuringErrors);
|
|
if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
|
|
if (this.options.ecmaVersion >= 9) {
|
|
if (this.type === types._in) {
|
|
if (awaitAt > -1) { this.unexpected(awaitAt); }
|
|
} else { node.await = awaitAt > -1; }
|
|
}
|
|
this.toAssignable(init, false, refDestructuringErrors);
|
|
this.checkLVal(init);
|
|
return this.parseForIn(node, init)
|
|
} else {
|
|
this.checkExpressionErrors(refDestructuringErrors, true);
|
|
}
|
|
if (awaitAt > -1) { this.unexpected(awaitAt); }
|
|
return this.parseFor(node, init)
|
|
};
|
|
|
|
pp$1.parseFunctionStatement = function(node, isAsync) {
|
|
this.next();
|
|
return this.parseFunction(node, true, false, isAsync)
|
|
};
|
|
|
|
pp$1.parseIfStatement = function(node) {
|
|
this.next();
|
|
node.test = this.parseParenExpression();
|
|
// allow function declarations in branches, but only in non-strict mode
|
|
node.consequent = this.parseStatement(!this.strict && this.type == types._function);
|
|
node.alternate = this.eat(types._else) ? this.parseStatement(!this.strict && this.type == types._function) : null;
|
|
return this.finishNode(node, "IfStatement")
|
|
};
|
|
|
|
pp$1.parseReturnStatement = function(node) {
|
|
if (!this.inFunction && !this.options.allowReturnOutsideFunction)
|
|
{ this.raise(this.start, "'return' outside of function"); }
|
|
this.next();
|
|
|
|
// In `return` (and `break`/`continue`), the keywords with
|
|
// optional arguments, we eagerly look for a semicolon or the
|
|
// possibility to insert one.
|
|
|
|
if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
|
|
else { node.argument = this.parseExpression(); this.semicolon(); }
|
|
return this.finishNode(node, "ReturnStatement")
|
|
};
|
|
|
|
pp$1.parseSwitchStatement = function(node) {
|
|
var this$1 = this;
|
|
|
|
this.next();
|
|
node.discriminant = this.parseParenExpression();
|
|
node.cases = [];
|
|
this.expect(types.braceL);
|
|
this.labels.push(switchLabel);
|
|
this.enterLexicalScope();
|
|
|
|
// Statements under must be grouped (by label) in SwitchCase
|
|
// nodes. `cur` is used to keep the node that we are currently
|
|
// adding statements to.
|
|
|
|
var cur;
|
|
for (var sawDefault = false; this.type != types.braceR;) {
|
|
if (this$1.type === types._case || this$1.type === types._default) {
|
|
var isCase = this$1.type === types._case;
|
|
if (cur) { this$1.finishNode(cur, "SwitchCase"); }
|
|
node.cases.push(cur = this$1.startNode());
|
|
cur.consequent = [];
|
|
this$1.next();
|
|
if (isCase) {
|
|
cur.test = this$1.parseExpression();
|
|
} else {
|
|
if (sawDefault) { this$1.raiseRecoverable(this$1.lastTokStart, "Multiple default clauses"); }
|
|
sawDefault = true;
|
|
cur.test = null;
|
|
}
|
|
this$1.expect(types.colon);
|
|
} else {
|
|
if (!cur) { this$1.unexpected(); }
|
|
cur.consequent.push(this$1.parseStatement(true));
|
|
}
|
|
}
|
|
this.exitLexicalScope();
|
|
if (cur) { this.finishNode(cur, "SwitchCase"); }
|
|
this.next(); // Closing brace
|
|
this.labels.pop();
|
|
return this.finishNode(node, "SwitchStatement")
|
|
};
|
|
|
|
pp$1.parseThrowStatement = function(node) {
|
|
this.next();
|
|
if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
|
|
{ this.raise(this.lastTokEnd, "Illegal newline after throw"); }
|
|
node.argument = this.parseExpression();
|
|
this.semicolon();
|
|
return this.finishNode(node, "ThrowStatement")
|
|
};
|
|
|
|
// Reused empty array added for node fields that are always empty.
|
|
|
|
var empty = [];
|
|
|
|
pp$1.parseTryStatement = function(node) {
|
|
this.next();
|
|
node.block = this.parseBlock();
|
|
node.handler = null;
|
|
if (this.type === types._catch) {
|
|
var clause = this.startNode();
|
|
this.next();
|
|
this.expect(types.parenL);
|
|
clause.param = this.parseBindingAtom();
|
|
this.enterLexicalScope();
|
|
this.checkLVal(clause.param, "let");
|
|
this.expect(types.parenR);
|
|
clause.body = this.parseBlock(false);
|
|
this.exitLexicalScope();
|
|
node.handler = this.finishNode(clause, "CatchClause");
|
|
}
|
|
node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
|
|
if (!node.handler && !node.finalizer)
|
|
{ this.raise(node.start, "Missing catch or finally clause"); }
|
|
return this.finishNode(node, "TryStatement")
|
|
};
|
|
|
|
pp$1.parseVarStatement = function(node, kind) {
|
|
this.next();
|
|
this.parseVar(node, false, kind);
|
|
this.semicolon();
|
|
return this.finishNode(node, "VariableDeclaration")
|
|
};
|
|
|
|
pp$1.parseWhileStatement = function(node) {
|
|
this.next();
|
|
node.test = this.parseParenExpression();
|
|
this.labels.push(loopLabel);
|
|
node.body = this.parseStatement(false);
|
|
this.labels.pop();
|
|
return this.finishNode(node, "WhileStatement")
|
|
};
|
|
|
|
pp$1.parseWithStatement = function(node) {
|
|
if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
|
|
this.next();
|
|
node.object = this.parseParenExpression();
|
|
node.body = this.parseStatement(false);
|
|
return this.finishNode(node, "WithStatement")
|
|
};
|
|
|
|
pp$1.parseEmptyStatement = function(node) {
|
|
this.next();
|
|
return this.finishNode(node, "EmptyStatement")
|
|
};
|
|
|
|
pp$1.parseLabeledStatement = function(node, maybeName, expr) {
|
|
var this$1 = this;
|
|
|
|
for (var i$1 = 0, list = this$1.labels; i$1 < list.length; i$1 += 1)
|
|
{
|
|
var label = list[i$1];
|
|
|
|
if (label.name === maybeName)
|
|
{ this$1.raise(expr.start, "Label '" + maybeName + "' is already declared");
|
|
} }
|
|
var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
|
|
for (var i = this.labels.length - 1; i >= 0; i--) {
|
|
var label$1 = this$1.labels[i];
|
|
if (label$1.statementStart == node.start) {
|
|
// Update information about previous labels on this node
|
|
label$1.statementStart = this$1.start;
|
|
label$1.kind = kind;
|
|
} else { break }
|
|
}
|
|
this.labels.push({name: maybeName, kind: kind, statementStart: this.start});
|
|
node.body = this.parseStatement(true);
|
|
if (node.body.type == "ClassDeclaration" ||
|
|
node.body.type == "VariableDeclaration" && node.body.kind != "var" ||
|
|
node.body.type == "FunctionDeclaration" && (this.strict || node.body.generator))
|
|
{ this.raiseRecoverable(node.body.start, "Invalid labeled declaration"); }
|
|
this.labels.pop();
|
|
node.label = expr;
|
|
return this.finishNode(node, "LabeledStatement")
|
|
};
|
|
|
|
pp$1.parseExpressionStatement = function(node, expr) {
|
|
node.expression = expr;
|
|
this.semicolon();
|
|
return this.finishNode(node, "ExpressionStatement")
|
|
};
|
|
|
|
// Parse a semicolon-enclosed block of statements, handling `"use
|
|
// strict"` declarations when `allowStrict` is true (used for
|
|
// function bodies).
|
|
|
|
pp$1.parseBlock = function(createNewLexicalScope) {
|
|
var this$1 = this;
|
|
if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
|
|
|
|
var node = this.startNode();
|
|
node.body = [];
|
|
this.expect(types.braceL);
|
|
if (createNewLexicalScope) {
|
|
this.enterLexicalScope();
|
|
}
|
|
while (!this.eat(types.braceR)) {
|
|
var stmt = this$1.parseStatement(true);
|
|
node.body.push(stmt);
|
|
}
|
|
if (createNewLexicalScope) {
|
|
this.exitLexicalScope();
|
|
}
|
|
return this.finishNode(node, "BlockStatement")
|
|
};
|
|
|
|
// Parse a regular `for` loop. The disambiguation code in
|
|
// `parseStatement` will already have parsed the init statement or
|
|
// expression.
|
|
|
|
pp$1.parseFor = function(node, init) {
|
|
node.init = init;
|
|
this.expect(types.semi);
|
|
node.test = this.type === types.semi ? null : this.parseExpression();
|
|
this.expect(types.semi);
|
|
node.update = this.type === types.parenR ? null : this.parseExpression();
|
|
this.expect(types.parenR);
|
|
this.exitLexicalScope();
|
|
node.body = this.parseStatement(false);
|
|
this.labels.pop();
|
|
return this.finishNode(node, "ForStatement")
|
|
};
|
|
|
|
// Parse a `for`/`in` and `for`/`of` loop, which are almost
|
|
// same from parser's perspective.
|
|
|
|
pp$1.parseForIn = function(node, init) {
|
|
var type = this.type === types._in ? "ForInStatement" : "ForOfStatement";
|
|
this.next();
|
|
if (type == "ForInStatement") {
|
|
if (init.type === "AssignmentPattern" ||
|
|
(init.type === "VariableDeclaration" && init.declarations[0].init != null &&
|
|
(this.strict || init.declarations[0].id.type !== "Identifier")))
|
|
{ this.raise(init.start, "Invalid assignment in for-in loop head"); }
|
|
}
|
|
node.left = init;
|
|
node.right = type == "ForInStatement" ? this.parseExpression() : this.parseMaybeAssign();
|
|
this.expect(types.parenR);
|
|
this.exitLexicalScope();
|
|
node.body = this.parseStatement(false);
|
|
this.labels.pop();
|
|
return this.finishNode(node, type)
|
|
};
|
|
|
|
// Parse a list of variable declarations.
|
|
|
|
pp$1.parseVar = function(node, isFor, kind) {
|
|
var this$1 = this;
|
|
|
|
node.declarations = [];
|
|
node.kind = kind;
|
|
for (;;) {
|
|
var decl = this$1.startNode();
|
|
this$1.parseVarId(decl, kind);
|
|
if (this$1.eat(types.eq)) {
|
|
decl.init = this$1.parseMaybeAssign(isFor);
|
|
} else if (kind === "const" && !(this$1.type === types._in || (this$1.options.ecmaVersion >= 6 && this$1.isContextual("of")))) {
|
|
this$1.unexpected();
|
|
} else if (decl.id.type != "Identifier" && !(isFor && (this$1.type === types._in || this$1.isContextual("of")))) {
|
|
this$1.raise(this$1.lastTokEnd, "Complex binding patterns require an initialization value");
|
|
} else {
|
|
decl.init = null;
|
|
}
|
|
node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"));
|
|
if (!this$1.eat(types.comma)) { break }
|
|
}
|
|
return node
|
|
};
|
|
|
|
pp$1.parseVarId = function(decl, kind) {
|
|
decl.id = this.parseBindingAtom(kind);
|
|
this.checkLVal(decl.id, kind, false);
|
|
};
|
|
|
|
// Parse a function declaration or literal (depending on the
|
|
// `isStatement` parameter).
|
|
|
|
pp$1.parseFunction = function(node, isStatement, allowExpressionBody, isAsync) {
|
|
this.initFunction(node);
|
|
if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync)
|
|
{ node.generator = this.eat(types.star); }
|
|
if (this.options.ecmaVersion >= 8)
|
|
{ node.async = !!isAsync; }
|
|
|
|
if (isStatement) {
|
|
node.id = isStatement === "nullableID" && this.type != types.name ? null : this.parseIdent();
|
|
if (node.id) {
|
|
this.checkLVal(node.id, "var");
|
|
}
|
|
}
|
|
|
|
var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
|
|
oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
|
|
this.inGenerator = node.generator;
|
|
this.inAsync = node.async;
|
|
this.yieldPos = 0;
|
|
this.awaitPos = 0;
|
|
this.inFunction = true;
|
|
this.enterFunctionScope();
|
|
|
|
if (!isStatement)
|
|
{ node.id = this.type == types.name ? this.parseIdent() : null; }
|
|
|
|
this.parseFunctionParams(node);
|
|
this.parseFunctionBody(node, allowExpressionBody);
|
|
|
|
this.inGenerator = oldInGen;
|
|
this.inAsync = oldInAsync;
|
|
this.yieldPos = oldYieldPos;
|
|
this.awaitPos = oldAwaitPos;
|
|
this.inFunction = oldInFunc;
|
|
return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
|
|
};
|
|
|
|
pp$1.parseFunctionParams = function(node) {
|
|
this.expect(types.parenL);
|
|
node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
|
|
this.checkYieldAwaitInDefaultParams();
|
|
};
|
|
|
|
// Parse a class declaration or literal (depending on the
|
|
// `isStatement` parameter).
|
|
|
|
pp$1.parseClass = function(node, isStatement) {
|
|
var this$1 = this;
|
|
|
|
this.next();
|
|
|
|
this.parseClassId(node, isStatement);
|
|
this.parseClassSuper(node);
|
|
var classBody = this.startNode();
|
|
var hadConstructor = false;
|
|
classBody.body = [];
|
|
this.expect(types.braceL);
|
|
while (!this.eat(types.braceR)) {
|
|
var member = this$1.parseClassMember(classBody);
|
|
if (member && member.type === "MethodDefinition" && member.kind === "constructor") {
|
|
if (hadConstructor) { this$1.raise(member.start, "Duplicate constructor in the same class"); }
|
|
hadConstructor = true;
|
|
}
|
|
}
|
|
node.body = this.finishNode(classBody, "ClassBody");
|
|
return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
|
|
};
|
|
|
|
pp$1.parseClassMember = function(classBody) {
|
|
var this$1 = this;
|
|
|
|
if (this.eat(types.semi)) { return null }
|
|
|
|
var method = this.startNode();
|
|
var tryContextual = function (k, noLineBreak) {
|
|
if ( noLineBreak === void 0 ) noLineBreak = false;
|
|
|
|
var start = this$1.start, startLoc = this$1.startLoc;
|
|
if (!this$1.eatContextual(k)) { return false }
|
|
if (this$1.type !== types.parenL && (!noLineBreak || !this$1.canInsertSemicolon())) { return true }
|
|
if (method.key) { this$1.unexpected(); }
|
|
method.computed = false;
|
|
method.key = this$1.startNodeAt(start, startLoc);
|
|
method.key.name = k;
|
|
this$1.finishNode(method.key, "Identifier");
|
|
return false
|
|
};
|
|
|
|
method.kind = "method";
|
|
method.static = tryContextual("static");
|
|
var isGenerator = this.eat(types.star);
|
|
var isAsync = false;
|
|
if (!isGenerator) {
|
|
if (this.options.ecmaVersion >= 8 && tryContextual("async", true)) {
|
|
isAsync = true;
|
|
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
|
|
} else if (tryContextual("get")) {
|
|
method.kind = "get";
|
|
} else if (tryContextual("set")) {
|
|
method.kind = "set";
|
|
}
|
|
}
|
|
if (!method.key) { this.parsePropertyName(method); }
|
|
var key = method.key;
|
|
if (!method.computed && !method.static && (key.type === "Identifier" && key.name === "constructor" ||
|
|
key.type === "Literal" && key.value === "constructor")) {
|
|
if (method.kind !== "method") { this.raise(key.start, "Constructor can't have get/set modifier"); }
|
|
if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
|
|
if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
|
|
method.kind = "constructor";
|
|
} else if (method.static && key.type === "Identifier" && key.name === "prototype") {
|
|
this.raise(key.start, "Classes may not have a static property named prototype");
|
|
}
|
|
this.parseClassMethod(classBody, method, isGenerator, isAsync);
|
|
if (method.kind === "get" && method.value.params.length !== 0)
|
|
{ this.raiseRecoverable(method.value.start, "getter should have no params"); }
|
|
if (method.kind === "set" && method.value.params.length !== 1)
|
|
{ this.raiseRecoverable(method.value.start, "setter should have exactly one param"); }
|
|
if (method.kind === "set" && method.value.params[0].type === "RestElement")
|
|
{ this.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); }
|
|
return method
|
|
};
|
|
|
|
pp$1.parseClassMethod = function(classBody, method, isGenerator, isAsync) {
|
|
method.value = this.parseMethod(isGenerator, isAsync);
|
|
classBody.body.push(this.finishNode(method, "MethodDefinition"));
|
|
};
|
|
|
|
pp$1.parseClassId = function(node, isStatement) {
|
|
node.id = this.type === types.name ? this.parseIdent() : isStatement === true ? this.unexpected() : null;
|
|
};
|
|
|
|
pp$1.parseClassSuper = function(node) {
|
|
node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
|
|
};
|
|
|
|
// Parses module export declaration.
|
|
|
|
pp$1.parseExport = function(node, exports) {
|
|
var this$1 = this;
|
|
|
|
this.next();
|
|
// export * from '...'
|
|
if (this.eat(types.star)) {
|
|
this.expectContextual("from");
|
|
if (this.type !== types.string) { this.unexpected(); }
|
|
node.source = this.parseExprAtom();
|
|
this.semicolon();
|
|
return this.finishNode(node, "ExportAllDeclaration")
|
|
}
|
|
if (this.eat(types._default)) { // export default ...
|
|
this.checkExport(exports, "default", this.lastTokStart);
|
|
var isAsync;
|
|
if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
|
|
var fNode = this.startNode();
|
|
this.next();
|
|
if (isAsync) { this.next(); }
|
|
node.declaration = this.parseFunction(fNode, "nullableID", false, isAsync);
|
|
} else if (this.type === types._class) {
|
|
var cNode = this.startNode();
|
|
node.declaration = this.parseClass(cNode, "nullableID");
|
|
} else {
|
|
node.declaration = this.parseMaybeAssign();
|
|
this.semicolon();
|
|
}
|
|
return this.finishNode(node, "ExportDefaultDeclaration")
|
|
}
|
|
// export var|const|let|function|class ...
|
|
if (this.shouldParseExportStatement()) {
|
|
node.declaration = this.parseStatement(true);
|
|
if (node.declaration.type === "VariableDeclaration")
|
|
{ this.checkVariableExport(exports, node.declaration.declarations); }
|
|
else
|
|
{ this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
|
|
node.specifiers = [];
|
|
node.source = null;
|
|
} else { // export { x, y as z } [from '...']
|
|
node.declaration = null;
|
|
node.specifiers = this.parseExportSpecifiers(exports);
|
|
if (this.eatContextual("from")) {
|
|
if (this.type !== types.string) { this.unexpected(); }
|
|
node.source = this.parseExprAtom();
|
|
} else {
|
|
// check for keywords used as local names
|
|
for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
|
|
var spec = list[i];
|
|
|
|
this$1.checkUnreserved(spec.local);
|
|
}
|
|
|
|
node.source = null;
|
|
}
|
|
this.semicolon();
|
|
}
|
|
return this.finishNode(node, "ExportNamedDeclaration")
|
|
};
|
|
|
|
pp$1.checkExport = function(exports, name, pos) {
|
|
if (!exports) { return }
|
|
if (has(exports, name))
|
|
{ this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
|
|
exports[name] = true;
|
|
};
|
|
|
|
pp$1.checkPatternExport = function(exports, pat) {
|
|
var this$1 = this;
|
|
|
|
var type = pat.type;
|
|
if (type == "Identifier")
|
|
{ this.checkExport(exports, pat.name, pat.start); }
|
|
else if (type == "ObjectPattern")
|
|
{ for (var i = 0, list = pat.properties; i < list.length; i += 1)
|
|
{
|
|
var prop = list[i];
|
|
|
|
this$1.checkPatternExport(exports, prop);
|
|
} }
|
|
else if (type == "ArrayPattern")
|
|
{ for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
|
|
var elt = list$1[i$1];
|
|
|
|
if (elt) { this$1.checkPatternExport(exports, elt); }
|
|
} }
|
|
else if (type == "Property")
|
|
{ this.checkPatternExport(exports, pat.value); }
|
|
else if (type == "AssignmentPattern")
|
|
{ this.checkPatternExport(exports, pat.left); }
|
|
else if (type == "RestElement")
|
|
{ this.checkPatternExport(exports, pat.argument); }
|
|
else if (type == "ParenthesizedExpression")
|
|
{ this.checkPatternExport(exports, pat.expression); }
|
|
};
|
|
|
|
pp$1.checkVariableExport = function(exports, decls) {
|
|
var this$1 = this;
|
|
|
|
if (!exports) { return }
|
|
for (var i = 0, list = decls; i < list.length; i += 1)
|
|
{
|
|
var decl = list[i];
|
|
|
|
this$1.checkPatternExport(exports, decl.id);
|
|
}
|
|
};
|
|
|
|
pp$1.shouldParseExportStatement = function() {
|
|
return this.type.keyword === "var" ||
|
|
this.type.keyword === "const" ||
|
|
this.type.keyword === "class" ||
|
|
this.type.keyword === "function" ||
|
|
this.isLet() ||
|
|
this.isAsyncFunction()
|
|
};
|
|
|
|
// Parses a comma-separated list of module exports.
|
|
|
|
pp$1.parseExportSpecifiers = function(exports) {
|
|
var this$1 = this;
|
|
|
|
var nodes = [], first = true;
|
|
// export { x, y as z } [from '...']
|
|
this.expect(types.braceL);
|
|
while (!this.eat(types.braceR)) {
|
|
if (!first) {
|
|
this$1.expect(types.comma);
|
|
if (this$1.afterTrailingComma(types.braceR)) { break }
|
|
} else { first = false; }
|
|
|
|
var node = this$1.startNode();
|
|
node.local = this$1.parseIdent(true);
|
|
node.exported = this$1.eatContextual("as") ? this$1.parseIdent(true) : node.local;
|
|
this$1.checkExport(exports, node.exported.name, node.exported.start);
|
|
nodes.push(this$1.finishNode(node, "ExportSpecifier"));
|
|
}
|
|
return nodes
|
|
};
|
|
|
|
// Parses import declaration.
|
|
|
|
pp$1.parseImport = function(node) {
|
|
this.next();
|
|
// import '...'
|
|
if (this.type === types.string) {
|
|
node.specifiers = empty;
|
|
node.source = this.parseExprAtom();
|
|
} else {
|
|
node.specifiers = this.parseImportSpecifiers();
|
|
this.expectContextual("from");
|
|
node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
|
|
}
|
|
this.semicolon();
|
|
return this.finishNode(node, "ImportDeclaration")
|
|
};
|
|
|
|
// Parses a comma-separated list of module imports.
|
|
|
|
pp$1.parseImportSpecifiers = function() {
|
|
var this$1 = this;
|
|
|
|
var nodes = [], first = true;
|
|
if (this.type === types.name) {
|
|
// import defaultObj, { x, y as z } from '...'
|
|
var node = this.startNode();
|
|
node.local = this.parseIdent();
|
|
this.checkLVal(node.local, "let");
|
|
nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
|
|
if (!this.eat(types.comma)) { return nodes }
|
|
}
|
|
if (this.type === types.star) {
|
|
var node$1 = this.startNode();
|
|
this.next();
|
|
this.expectContextual("as");
|
|
node$1.local = this.parseIdent();
|
|
this.checkLVal(node$1.local, "let");
|
|
nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
|
|
return nodes
|
|
}
|
|
this.expect(types.braceL);
|
|
while (!this.eat(types.braceR)) {
|
|
if (!first) {
|
|
this$1.expect(types.comma);
|
|
if (this$1.afterTrailingComma(types.braceR)) { break }
|
|
} else { first = false; }
|
|
|
|
var node$2 = this$1.startNode();
|
|
node$2.imported = this$1.parseIdent(true);
|
|
if (this$1.eatContextual("as")) {
|
|
node$2.local = this$1.parseIdent();
|
|
} else {
|
|
this$1.checkUnreserved(node$2.imported);
|
|
node$2.local = node$2.imported;
|
|
}
|
|
this$1.checkLVal(node$2.local, "let");
|
|
nodes.push(this$1.finishNode(node$2, "ImportSpecifier"));
|
|
}
|
|
return nodes
|
|
};
|
|
|
|
// Set `ExpressionStatement#directive` property for directive prologues.
|
|
pp$1.adaptDirectivePrologue = function(statements) {
|
|
for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
|
|
statements[i].directive = statements[i].expression.raw.slice(1, -1);
|
|
}
|
|
};
|
|
pp$1.isDirectiveCandidate = function(statement) {
|
|
return (
|
|
statement.type === "ExpressionStatement" &&
|
|
statement.expression.type === "Literal" &&
|
|
typeof statement.expression.value === "string" &&
|
|
// Reject parenthesized strings.
|
|
(this.input[statement.start] === "\"" || this.input[statement.start] === "'")
|
|
)
|
|
};
|
|
|
|
var pp$2 = Parser.prototype;
|
|
|
|
// Convert existing expression atom to assignable pattern
|
|
// if possible.
|
|
|
|
pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
|
|
var this$1 = this;
|
|
|
|
if (this.options.ecmaVersion >= 6 && node) {
|
|
switch (node.type) {
|
|
case "Identifier":
|
|
if (this.inAsync && node.name === "await")
|
|
{ this.raise(node.start, "Can not use 'await' as identifier inside an async function"); }
|
|
break
|
|
|
|
case "ObjectPattern":
|
|
case "ArrayPattern":
|
|
case "RestElement":
|
|
break
|
|
|
|
case "ObjectExpression":
|
|
node.type = "ObjectPattern";
|
|
if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
|
|
for (var i = 0, list = node.properties; i < list.length; i += 1) {
|
|
var prop = list[i];
|
|
|
|
this$1.toAssignable(prop, isBinding);
|
|
// Early error:
|
|
// AssignmentRestProperty[Yield, Await] :
|
|
// `...` DestructuringAssignmentTarget[Yield, Await]
|
|
//
|
|
// It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|.
|
|
if (
|
|
prop.type === "RestElement" &&
|
|
(prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern")
|
|
) {
|
|
this$1.raise(prop.argument.start, "Unexpected token");
|
|
}
|
|
}
|
|
break
|
|
|
|
case "Property":
|
|
// AssignmentProperty has type == "Property"
|
|
if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"); }
|
|
this.toAssignable(node.value, isBinding);
|
|
break
|
|
|
|
case "ArrayExpression":
|
|
node.type = "ArrayPattern";
|
|
if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
|
|
this.toAssignableList(node.elements, isBinding);
|
|
break
|
|
|
|
case "SpreadElement":
|
|
node.type = "RestElement";
|
|
this.toAssignable(node.argument, isBinding);
|
|
if (node.argument.type === "AssignmentPattern")
|
|
{ this.raise(node.argument.start, "Rest elements cannot have a default value"); }
|
|
break
|
|
|
|
case "AssignmentExpression":
|
|
if (node.operator !== "=") { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); }
|
|
node.type = "AssignmentPattern";
|
|
delete node.operator;
|
|
this.toAssignable(node.left, isBinding);
|
|
// falls through to AssignmentPattern
|
|
|
|
case "AssignmentPattern":
|
|
break
|
|
|
|
case "ParenthesizedExpression":
|
|
this.toAssignable(node.expression, isBinding);
|
|
break
|
|
|
|
case "MemberExpression":
|
|
if (!isBinding) { break }
|
|
|
|
default:
|
|
this.raise(node.start, "Assigning to rvalue");
|
|
}
|
|
} else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
|
|
return node
|
|
};
|
|
|
|
// Convert list of expression atoms to binding list.
|
|
|
|
pp$2.toAssignableList = function(exprList, isBinding) {
|
|
var this$1 = this;
|
|
|
|
var end = exprList.length;
|
|
for (var i = 0; i < end; i++) {
|
|
var elt = exprList[i];
|
|
if (elt) { this$1.toAssignable(elt, isBinding); }
|
|
}
|
|
if (end) {
|
|
var last = exprList[end - 1];
|
|
if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
|
|
{ this.unexpected(last.argument.start); }
|
|
}
|
|
return exprList
|
|
};
|
|
|
|
// Parses spread element.
|
|
|
|
pp$2.parseSpread = function(refDestructuringErrors) {
|
|
var node = this.startNode();
|
|
this.next();
|
|
node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
|
|
return this.finishNode(node, "SpreadElement")
|
|
};
|
|
|
|
pp$2.parseRestBinding = function() {
|
|
var node = this.startNode();
|
|
this.next();
|
|
|
|
// RestElement inside of a function parameter must be an identifier
|
|
if (this.options.ecmaVersion === 6 && this.type !== types.name)
|
|
{ this.unexpected(); }
|
|
|
|
node.argument = this.parseBindingAtom();
|
|
|
|
return this.finishNode(node, "RestElement")
|
|
};
|
|
|
|
// Parses lvalue (assignable) atom.
|
|
|
|
pp$2.parseBindingAtom = function() {
|
|
if (this.options.ecmaVersion >= 6) {
|
|
switch (this.type) {
|
|
case types.bracketL:
|
|
var node = this.startNode();
|
|
this.next();
|
|
node.elements = this.parseBindingList(types.bracketR, true, true);
|
|
return this.finishNode(node, "ArrayPattern")
|
|
|
|
case types.braceL:
|
|
return this.parseObj(true)
|
|
}
|
|
}
|
|
return this.parseIdent()
|
|
};
|
|
|
|
pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
|
|
var this$1 = this;
|
|
|
|
var elts = [], first = true;
|
|
while (!this.eat(close)) {
|
|
if (first) { first = false; }
|
|
else { this$1.expect(types.comma); }
|
|
if (allowEmpty && this$1.type === types.comma) {
|
|
elts.push(null);
|
|
} else if (allowTrailingComma && this$1.afterTrailingComma(close)) {
|
|
break
|
|
} else if (this$1.type === types.ellipsis) {
|
|
var rest = this$1.parseRestBinding();
|
|
this$1.parseBindingListItem(rest);
|
|
elts.push(rest);
|
|
if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); }
|
|
this$1.expect(close);
|
|
break
|
|
} else {
|
|
var elem = this$1.parseMaybeDefault(this$1.start, this$1.startLoc);
|
|
this$1.parseBindingListItem(elem);
|
|
elts.push(elem);
|
|
}
|
|
}
|
|
return elts
|
|
};
|
|
|
|
pp$2.parseBindingListItem = function(param) {
|
|
return param
|
|
};
|
|
|
|
// Parses assignment pattern around given atom if possible.
|
|
|
|
pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
|
|
left = left || this.parseBindingAtom();
|
|
if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
|
|
var node = this.startNodeAt(startPos, startLoc);
|
|
node.left = left;
|
|
node.right = this.parseMaybeAssign();
|
|
return this.finishNode(node, "AssignmentPattern")
|
|
};
|
|
|
|
// Verify that a node is an lval — something that can be assigned
|
|
// to.
|
|
// bindingType can be either:
|
|
// 'var' indicating that the lval creates a 'var' binding
|
|
// 'let' indicating that the lval creates a lexical ('let' or 'const') binding
|
|
// 'none' indicating that the binding should be checked for illegal identifiers, but not for duplicate references
|
|
|
|
pp$2.checkLVal = function(expr, bindingType, checkClashes) {
|
|
var this$1 = this;
|
|
|
|
switch (expr.type) {
|
|
case "Identifier":
|
|
if (this.strict && this.reservedWordsStrictBind.test(expr.name))
|
|
{ this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); }
|
|
if (checkClashes) {
|
|
if (has(checkClashes, expr.name))
|
|
{ this.raiseRecoverable(expr.start, "Argument name clash"); }
|
|
checkClashes[expr.name] = true;
|
|
}
|
|
if (bindingType && bindingType !== "none") {
|
|
if (
|
|
bindingType === "var" && !this.canDeclareVarName(expr.name) ||
|
|
bindingType !== "var" && !this.canDeclareLexicalName(expr.name)
|
|
) {
|
|
this.raiseRecoverable(expr.start, ("Identifier '" + (expr.name) + "' has already been declared"));
|
|
}
|
|
if (bindingType === "var") {
|
|
this.declareVarName(expr.name);
|
|
} else {
|
|
this.declareLexicalName(expr.name);
|
|
}
|
|
}
|
|
break
|
|
|
|
case "MemberExpression":
|
|
if (bindingType) { this.raiseRecoverable(expr.start, "Binding member expression"); }
|
|
break
|
|
|
|
case "ObjectPattern":
|
|
for (var i = 0, list = expr.properties; i < list.length; i += 1)
|
|
{
|
|
var prop = list[i];
|
|
|
|
this$1.checkLVal(prop, bindingType, checkClashes);
|
|
}
|
|
break
|
|
|
|
case "Property":
|
|
// AssignmentProperty has type == "Property"
|
|
this.checkLVal(expr.value, bindingType, checkClashes);
|
|
break
|
|
|
|
case "ArrayPattern":
|
|
for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {
|
|
var elem = list$1[i$1];
|
|
|
|
if (elem) { this$1.checkLVal(elem, bindingType, checkClashes); }
|
|
}
|
|
break
|
|
|
|
case "AssignmentPattern":
|
|
this.checkLVal(expr.left, bindingType, checkClashes);
|
|
break
|
|
|
|
case "RestElement":
|
|
this.checkLVal(expr.argument, bindingType, checkClashes);
|
|
break
|
|
|
|
case "ParenthesizedExpression":
|
|
this.checkLVal(expr.expression, bindingType, checkClashes);
|
|
break
|
|
|
|
default:
|
|
this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue");
|
|
}
|
|
};
|
|
|
|
// A recursive descent parser operates by defining functions for all
|
|
// syntactic elements, and recursively calling those, each function
|
|
// advancing the input stream and returning an AST node. Precedence
|
|
// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
|
|
// instead of `(!x)[1]` is handled by the fact that the parser
|
|
// function that parses unary prefix operators is called first, and
|
|
// in turn calls the function that parses `[]` subscripts — that
|
|
// way, it'll receive the node for `x[1]` already parsed, and wraps
|
|
// *that* in the unary operator node.
|
|
//
|
|
// Acorn uses an [operator precedence parser][opp] to handle binary
|
|
// operator precedence, because it is much more compact than using
|
|
// the technique outlined above, which uses different, nesting
|
|
// functions to specify precedence, for all of the ten binary
|
|
// precedence levels that JavaScript defines.
|
|
//
|
|
// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
|
|
|
|
var pp$3 = Parser.prototype;
|
|
|
|
// Check if property name clashes with already added.
|
|
// Object/class getters and setters are not allowed to clash —
|
|
// either with each other or with an init property — and in
|
|
// strict mode, init properties are also not allowed to be repeated.
|
|
|
|
pp$3.checkPropClash = function(prop, propHash, refDestructuringErrors) {
|
|
if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
|
|
{ return }
|
|
if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
|
|
{ return }
|
|
var key = prop.key;
|
|
var name;
|
|
switch (key.type) {
|
|
case "Identifier": name = key.name; break
|
|
case "Literal": name = String(key.value); break
|
|
default: return
|
|
}
|
|
var kind = prop.kind;
|
|
if (this.options.ecmaVersion >= 6) {
|
|
if (name === "__proto__" && kind === "init") {
|
|
if (propHash.proto) {
|
|
if (refDestructuringErrors && refDestructuringErrors.doubleProto < 0) { refDestructuringErrors.doubleProto = key.start; }
|
|
// Backwards-compat kludge. Can be removed in version 6.0
|
|
else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
|
|
}
|
|
propHash.proto = true;
|
|
}
|
|
return
|
|
}
|
|
name = "$" + name;
|
|
var other = propHash[name];
|
|
if (other) {
|
|
var redefinition;
|
|
if (kind === "init") {
|
|
redefinition = this.strict && other.init || other.get || other.set;
|
|
} else {
|
|
redefinition = other.init || other[kind];
|
|
}
|
|
if (redefinition)
|
|
{ this.raiseRecoverable(key.start, "Redefinition of property"); }
|
|
} else {
|
|
other = propHash[name] = {
|
|
init: false,
|
|
get: false,
|
|
set: false
|
|
};
|
|
}
|
|
other[kind] = true;
|
|
};
|
|
|
|
// ### Expression parsing
|
|
|
|
// These nest, from the most general expression type at the top to
|
|
// 'atomic', nondivisible expression types at the bottom. Most of
|
|
// the functions will simply let the function(s) below them parse,
|
|
// and, *if* the syntactic construct they handle is present, wrap
|
|
// the AST node that the inner parser gave them in another node.
|
|
|
|
// Parse a full expression. The optional arguments are used to
|
|
// forbid the `in` operator (in for loops initalization expressions)
|
|
// and provide reference for storing '=' operator inside shorthand
|
|
// property assignment in contexts where both object expression
|
|
// and object pattern might appear (so it's possible to raise
|
|
// delayed syntax error at correct position).
|
|
|
|
pp$3.parseExpression = function(noIn, refDestructuringErrors) {
|
|
var this$1 = this;
|
|
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
var expr = this.parseMaybeAssign(noIn, refDestructuringErrors);
|
|
if (this.type === types.comma) {
|
|
var node = this.startNodeAt(startPos, startLoc);
|
|
node.expressions = [expr];
|
|
while (this.eat(types.comma)) { node.expressions.push(this$1.parseMaybeAssign(noIn, refDestructuringErrors)); }
|
|
return this.finishNode(node, "SequenceExpression")
|
|
}
|
|
return expr
|
|
};
|
|
|
|
// Parse an assignment expression. This includes applications of
|
|
// operators like `+=`.
|
|
|
|
pp$3.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) {
|
|
if (this.inGenerator && this.isContextual("yield")) { return this.parseYield() }
|
|
|
|
var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
|
|
if (refDestructuringErrors) {
|
|
oldParenAssign = refDestructuringErrors.parenthesizedAssign;
|
|
oldTrailingComma = refDestructuringErrors.trailingComma;
|
|
refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
|
|
} else {
|
|
refDestructuringErrors = new DestructuringErrors;
|
|
ownDestructuringErrors = true;
|
|
}
|
|
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
if (this.type == types.parenL || this.type == types.name)
|
|
{ this.potentialArrowAt = this.start; }
|
|
var left = this.parseMaybeConditional(noIn, refDestructuringErrors);
|
|
if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
|
|
if (this.type.isAssign) {
|
|
var node = this.startNodeAt(startPos, startLoc);
|
|
node.operator = this.value;
|
|
node.left = this.type === types.eq ? this.toAssignable(left, false, refDestructuringErrors) : left;
|
|
if (!ownDestructuringErrors) { DestructuringErrors.call(refDestructuringErrors); }
|
|
refDestructuringErrors.shorthandAssign = -1; // reset because shorthand default was used correctly
|
|
this.checkLVal(left);
|
|
this.next();
|
|
node.right = this.parseMaybeAssign(noIn);
|
|
return this.finishNode(node, "AssignmentExpression")
|
|
} else {
|
|
if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
|
|
}
|
|
if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }
|
|
if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }
|
|
return left
|
|
};
|
|
|
|
// Parse a ternary conditional (`?:`) operator.
|
|
|
|
pp$3.parseMaybeConditional = function(noIn, refDestructuringErrors) {
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
var expr = this.parseExprOps(noIn, refDestructuringErrors);
|
|
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
|
|
if (this.eat(types.question)) {
|
|
var node = this.startNodeAt(startPos, startLoc);
|
|
node.test = expr;
|
|
node.consequent = this.parseMaybeAssign();
|
|
this.expect(types.colon);
|
|
node.alternate = this.parseMaybeAssign(noIn);
|
|
return this.finishNode(node, "ConditionalExpression")
|
|
}
|
|
return expr
|
|
};
|
|
|
|
// Start the precedence parser.
|
|
|
|
pp$3.parseExprOps = function(noIn, refDestructuringErrors) {
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
var expr = this.parseMaybeUnary(refDestructuringErrors, false);
|
|
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
|
|
return expr.start == startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, noIn)
|
|
};
|
|
|
|
// Parse binary operators with the operator precedence parsing
|
|
// algorithm. `left` is the left-hand side of the operator.
|
|
// `minPrec` provides context that allows the function to stop and
|
|
// defer further parser to one of its callers when it encounters an
|
|
// operator that has a lower precedence than the set it is parsing.
|
|
|
|
pp$3.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, noIn) {
|
|
var prec = this.type.binop;
|
|
if (prec != null && (!noIn || this.type !== types._in)) {
|
|
if (prec > minPrec) {
|
|
var logical = this.type === types.logicalOR || this.type === types.logicalAND;
|
|
var op = this.value;
|
|
this.next();
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn);
|
|
var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical);
|
|
return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
|
|
}
|
|
}
|
|
return left
|
|
};
|
|
|
|
pp$3.buildBinary = function(startPos, startLoc, left, right, op, logical) {
|
|
var node = this.startNodeAt(startPos, startLoc);
|
|
node.left = left;
|
|
node.operator = op;
|
|
node.right = right;
|
|
return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
|
|
};
|
|
|
|
// Parse unary operators, both prefix and postfix.
|
|
|
|
pp$3.parseMaybeUnary = function(refDestructuringErrors, sawUnary) {
|
|
var this$1 = this;
|
|
|
|
var startPos = this.start, startLoc = this.startLoc, expr;
|
|
if (this.inAsync && this.isContextual("await")) {
|
|
expr = this.parseAwait();
|
|
sawUnary = true;
|
|
} else if (this.type.prefix) {
|
|
var node = this.startNode(), update = this.type === types.incDec;
|
|
node.operator = this.value;
|
|
node.prefix = true;
|
|
this.next();
|
|
node.argument = this.parseMaybeUnary(null, true);
|
|
this.checkExpressionErrors(refDestructuringErrors, true);
|
|
if (update) { this.checkLVal(node.argument); }
|
|
else if (this.strict && node.operator === "delete" &&
|
|
node.argument.type === "Identifier")
|
|
{ this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); }
|
|
else { sawUnary = true; }
|
|
expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
|
|
} else {
|
|
expr = this.parseExprSubscripts(refDestructuringErrors);
|
|
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
|
|
while (this.type.postfix && !this.canInsertSemicolon()) {
|
|
var node$1 = this$1.startNodeAt(startPos, startLoc);
|
|
node$1.operator = this$1.value;
|
|
node$1.prefix = false;
|
|
node$1.argument = expr;
|
|
this$1.checkLVal(expr);
|
|
this$1.next();
|
|
expr = this$1.finishNode(node$1, "UpdateExpression");
|
|
}
|
|
}
|
|
|
|
if (!sawUnary && this.eat(types.starstar))
|
|
{ return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false) }
|
|
else
|
|
{ return expr }
|
|
};
|
|
|
|
// Parse call, dot, and `[]`-subscript expressions.
|
|
|
|
pp$3.parseExprSubscripts = function(refDestructuringErrors) {
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
var expr = this.parseExprAtom(refDestructuringErrors);
|
|
var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")";
|
|
if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) { return expr }
|
|
var result = this.parseSubscripts(expr, startPos, startLoc);
|
|
if (refDestructuringErrors && result.type === "MemberExpression") {
|
|
if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
|
|
if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
|
|
}
|
|
return result
|
|
};
|
|
|
|
pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) {
|
|
var this$1 = this;
|
|
|
|
var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
|
|
this.lastTokEnd == base.end && !this.canInsertSemicolon() && this.input.slice(base.start, base.end) === "async";
|
|
for (var computed = (void 0);;) {
|
|
if ((computed = this$1.eat(types.bracketL)) || this$1.eat(types.dot)) {
|
|
var node = this$1.startNodeAt(startPos, startLoc);
|
|
node.object = base;
|
|
node.property = computed ? this$1.parseExpression() : this$1.parseIdent(true);
|
|
node.computed = !!computed;
|
|
if (computed) { this$1.expect(types.bracketR); }
|
|
base = this$1.finishNode(node, "MemberExpression");
|
|
} else if (!noCalls && this$1.eat(types.parenL)) {
|
|
var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this$1.yieldPos, oldAwaitPos = this$1.awaitPos;
|
|
this$1.yieldPos = 0;
|
|
this$1.awaitPos = 0;
|
|
var exprList = this$1.parseExprList(types.parenR, this$1.options.ecmaVersion >= 8, false, refDestructuringErrors);
|
|
if (maybeAsyncArrow && !this$1.canInsertSemicolon() && this$1.eat(types.arrow)) {
|
|
this$1.checkPatternErrors(refDestructuringErrors, false);
|
|
this$1.checkYieldAwaitInDefaultParams();
|
|
this$1.yieldPos = oldYieldPos;
|
|
this$1.awaitPos = oldAwaitPos;
|
|
return this$1.parseArrowExpression(this$1.startNodeAt(startPos, startLoc), exprList, true)
|
|
}
|
|
this$1.checkExpressionErrors(refDestructuringErrors, true);
|
|
this$1.yieldPos = oldYieldPos || this$1.yieldPos;
|
|
this$1.awaitPos = oldAwaitPos || this$1.awaitPos;
|
|
var node$1 = this$1.startNodeAt(startPos, startLoc);
|
|
node$1.callee = base;
|
|
node$1.arguments = exprList;
|
|
base = this$1.finishNode(node$1, "CallExpression");
|
|
} else if (this$1.type === types.backQuote) {
|
|
var node$2 = this$1.startNodeAt(startPos, startLoc);
|
|
node$2.tag = base;
|
|
node$2.quasi = this$1.parseTemplate({isTagged: true});
|
|
base = this$1.finishNode(node$2, "TaggedTemplateExpression");
|
|
} else {
|
|
return base
|
|
}
|
|
}
|
|
};
|
|
|
|
// Parse an atomic expression — either a single token that is an
|
|
// expression, an expression started by a keyword like `function` or
|
|
// `new`, or an expression wrapped in punctuation like `()`, `[]`,
|
|
// or `{}`.
|
|
|
|
pp$3.parseExprAtom = function(refDestructuringErrors) {
|
|
var node, canBeArrow = this.potentialArrowAt == this.start;
|
|
switch (this.type) {
|
|
case types._super:
|
|
if (!this.inFunction)
|
|
{ this.raise(this.start, "'super' outside of function or class"); }
|
|
node = this.startNode();
|
|
this.next();
|
|
// The `super` keyword can appear at below:
|
|
// SuperProperty:
|
|
// super [ Expression ]
|
|
// super . IdentifierName
|
|
// SuperCall:
|
|
// super Arguments
|
|
if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
|
|
{ this.unexpected(); }
|
|
return this.finishNode(node, "Super")
|
|
|
|
case types._this:
|
|
node = this.startNode();
|
|
this.next();
|
|
return this.finishNode(node, "ThisExpression")
|
|
|
|
case types.name:
|
|
var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
|
|
var id = this.parseIdent(this.type !== types.name);
|
|
if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function))
|
|
{ return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true) }
|
|
if (canBeArrow && !this.canInsertSemicolon()) {
|
|
if (this.eat(types.arrow))
|
|
{ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false) }
|
|
if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc) {
|
|
id = this.parseIdent();
|
|
if (this.canInsertSemicolon() || !this.eat(types.arrow))
|
|
{ this.unexpected(); }
|
|
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
|
|
}
|
|
}
|
|
return id
|
|
|
|
case types.regexp:
|
|
var value = this.value;
|
|
node = this.parseLiteral(value.value);
|
|
node.regex = {pattern: value.pattern, flags: value.flags};
|
|
return node
|
|
|
|
case types.num: case types.string:
|
|
return this.parseLiteral(this.value)
|
|
|
|
case types._null: case types._true: case types._false:
|
|
node = this.startNode();
|
|
node.value = this.type === types._null ? null : this.type === types._true;
|
|
node.raw = this.type.keyword;
|
|
this.next();
|
|
return this.finishNode(node, "Literal")
|
|
|
|
case types.parenL:
|
|
var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow);
|
|
if (refDestructuringErrors) {
|
|
if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
|
|
{ refDestructuringErrors.parenthesizedAssign = start; }
|
|
if (refDestructuringErrors.parenthesizedBind < 0)
|
|
{ refDestructuringErrors.parenthesizedBind = start; }
|
|
}
|
|
return expr
|
|
|
|
case types.bracketL:
|
|
node = this.startNode();
|
|
this.next();
|
|
node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
|
|
return this.finishNode(node, "ArrayExpression")
|
|
|
|
case types.braceL:
|
|
return this.parseObj(false, refDestructuringErrors)
|
|
|
|
case types._function:
|
|
node = this.startNode();
|
|
this.next();
|
|
return this.parseFunction(node, false)
|
|
|
|
case types._class:
|
|
return this.parseClass(this.startNode(), false)
|
|
|
|
case types._new:
|
|
return this.parseNew()
|
|
|
|
case types.backQuote:
|
|
return this.parseTemplate()
|
|
|
|
default:
|
|
this.unexpected();
|
|
}
|
|
};
|
|
|
|
pp$3.parseLiteral = function(value) {
|
|
var node = this.startNode();
|
|
node.value = value;
|
|
node.raw = this.input.slice(this.start, this.end);
|
|
this.next();
|
|
return this.finishNode(node, "Literal")
|
|
};
|
|
|
|
pp$3.parseParenExpression = function() {
|
|
this.expect(types.parenL);
|
|
var val = this.parseExpression();
|
|
this.expect(types.parenR);
|
|
return val
|
|
};
|
|
|
|
pp$3.parseParenAndDistinguishExpression = function(canBeArrow) {
|
|
var this$1 = this;
|
|
|
|
var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
|
|
if (this.options.ecmaVersion >= 6) {
|
|
this.next();
|
|
|
|
var innerStartPos = this.start, innerStartLoc = this.startLoc;
|
|
var exprList = [], first = true, lastIsComma = false;
|
|
var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart;
|
|
this.yieldPos = 0;
|
|
this.awaitPos = 0;
|
|
while (this.type !== types.parenR) {
|
|
first ? first = false : this$1.expect(types.comma);
|
|
if (allowTrailingComma && this$1.afterTrailingComma(types.parenR, true)) {
|
|
lastIsComma = true;
|
|
break
|
|
} else if (this$1.type === types.ellipsis) {
|
|
spreadStart = this$1.start;
|
|
exprList.push(this$1.parseParenItem(this$1.parseRestBinding()));
|
|
if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); }
|
|
break
|
|
} else {
|
|
exprList.push(this$1.parseMaybeAssign(false, refDestructuringErrors, this$1.parseParenItem));
|
|
}
|
|
}
|
|
var innerEndPos = this.start, innerEndLoc = this.startLoc;
|
|
this.expect(types.parenR);
|
|
|
|
if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
|
|
this.checkPatternErrors(refDestructuringErrors, false);
|
|
this.checkYieldAwaitInDefaultParams();
|
|
this.yieldPos = oldYieldPos;
|
|
this.awaitPos = oldAwaitPos;
|
|
return this.parseParenArrowList(startPos, startLoc, exprList)
|
|
}
|
|
|
|
if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
|
|
if (spreadStart) { this.unexpected(spreadStart); }
|
|
this.checkExpressionErrors(refDestructuringErrors, true);
|
|
this.yieldPos = oldYieldPos || this.yieldPos;
|
|
this.awaitPos = oldAwaitPos || this.awaitPos;
|
|
|
|
if (exprList.length > 1) {
|
|
val = this.startNodeAt(innerStartPos, innerStartLoc);
|
|
val.expressions = exprList;
|
|
this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
|
|
} else {
|
|
val = exprList[0];
|
|
}
|
|
} else {
|
|
val = this.parseParenExpression();
|
|
}
|
|
|
|
if (this.options.preserveParens) {
|
|
var par = this.startNodeAt(startPos, startLoc);
|
|
par.expression = val;
|
|
return this.finishNode(par, "ParenthesizedExpression")
|
|
} else {
|
|
return val
|
|
}
|
|
};
|
|
|
|
pp$3.parseParenItem = function(item) {
|
|
return item
|
|
};
|
|
|
|
pp$3.parseParenArrowList = function(startPos, startLoc, exprList) {
|
|
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList)
|
|
};
|
|
|
|
// New's precedence is slightly tricky. It must allow its argument to
|
|
// be a `[]` or dot subscript expression, but not a call — at least,
|
|
// not without wrapping it in parentheses. Thus, it uses the noCalls
|
|
// argument to parseSubscripts to prevent it from consuming the
|
|
// argument list.
|
|
|
|
var empty$1 = [];
|
|
|
|
pp$3.parseNew = function() {
|
|
var node = this.startNode();
|
|
var meta = this.parseIdent(true);
|
|
if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
|
|
node.meta = meta;
|
|
var containsEsc = this.containsEsc;
|
|
node.property = this.parseIdent(true);
|
|
if (node.property.name !== "target" || containsEsc)
|
|
{ this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target"); }
|
|
if (!this.inFunction)
|
|
{ this.raiseRecoverable(node.start, "new.target can only be used in functions"); }
|
|
return this.finishNode(node, "MetaProperty")
|
|
}
|
|
var startPos = this.start, startLoc = this.startLoc;
|
|
node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
|
|
if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
|
|
else { node.arguments = empty$1; }
|
|
return this.finishNode(node, "NewExpression")
|
|
};
|
|
|
|
// Parse template expression.
|
|
|
|
pp$3.parseTemplateElement = function(ref) {
|
|
var isTagged = ref.isTagged;
|
|
|
|
var elem = this.startNode();
|
|
if (this.type === types.invalidTemplate) {
|
|
if (!isTagged) {
|
|
this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
|
|
}
|
|
elem.value = {
|
|
raw: this.value,
|
|
cooked: null
|
|
};
|
|
} else {
|
|
elem.value = {
|
|
raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
|
|
cooked: this.value
|
|
};
|
|
}
|
|
this.next();
|
|
elem.tail = this.type === types.backQuote;
|
|
return this.finishNode(elem, "TemplateElement")
|
|
};
|
|
|
|
pp$3.parseTemplate = function(ref) {
|
|
var this$1 = this;
|
|
if ( ref === void 0 ) ref = {};
|
|
var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;
|
|
|
|
var node = this.startNode();
|
|
this.next();
|
|
node.expressions = [];
|
|
var curElt = this.parseTemplateElement({isTagged: isTagged});
|
|
node.quasis = [curElt];
|
|
while (!curElt.tail) {
|
|
this$1.expect(types.dollarBraceL);
|
|
node.expressions.push(this$1.parseExpression());
|
|
this$1.expect(types.braceR);
|
|
node.quasis.push(curElt = this$1.parseTemplateElement({isTagged: isTagged}));
|
|
}
|
|
this.next();
|
|
return this.finishNode(node, "TemplateLiteral")
|
|
};
|
|
|
|
pp$3.isAsyncProp = function(prop) {
|
|
return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
|
|
(this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
|
|
!lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
|
|
};
|
|
|
|
// Parse an object literal or binding pattern.
|
|
|
|
pp$3.parseObj = function(isPattern, refDestructuringErrors) {
|
|
var this$1 = this;
|
|
|
|
var node = this.startNode(), first = true, propHash = {};
|
|
node.properties = [];
|
|
this.next();
|
|
while (!this.eat(types.braceR)) {
|
|
if (!first) {
|
|
this$1.expect(types.comma);
|
|
if (this$1.afterTrailingComma(types.braceR)) { break }
|
|
} else { first = false; }
|
|
|
|
var prop = this$1.parseProperty(isPattern, refDestructuringErrors);
|
|
if (!isPattern) { this$1.checkPropClash(prop, propHash, refDestructuringErrors); }
|
|
node.properties.push(prop);
|
|
}
|
|
return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
|
|
};
|
|
|
|
pp$3.parseProperty = function(isPattern, refDestructuringErrors) {
|
|
var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
|
|
if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
|
|
if (isPattern) {
|
|
prop.argument = this.parseIdent(false);
|
|
if (this.type === types.comma) {
|
|
this.raise(this.start, "Comma is not permitted after the rest element");
|
|
}
|
|
return this.finishNode(prop, "RestElement")
|
|
}
|
|
// To disallow parenthesized identifier via `this.toAssignable()`.
|
|
if (this.type === types.parenL && refDestructuringErrors) {
|
|
if (refDestructuringErrors.parenthesizedAssign < 0) {
|
|
refDestructuringErrors.parenthesizedAssign = this.start;
|
|
}
|
|
if (refDestructuringErrors.parenthesizedBind < 0) {
|
|
refDestructuringErrors.parenthesizedBind = this.start;
|
|
}
|
|
}
|
|
// Parse argument.
|
|
prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
|
|
// To disallow trailing comma via `this.toAssignable()`.
|
|
if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
|
|
refDestructuringErrors.trailingComma = this.start;
|
|
}
|
|
// Finish
|
|
return this.finishNode(prop, "SpreadElement")
|
|
}
|
|
if (this.options.ecmaVersion >= 6) {
|
|
prop.method = false;
|
|
prop.shorthand = false;
|
|
if (isPattern || refDestructuringErrors) {
|
|
startPos = this.start;
|
|
startLoc = this.startLoc;
|
|
}
|
|
if (!isPattern)
|
|
{ isGenerator = this.eat(types.star); }
|
|
}
|
|
var containsEsc = this.containsEsc;
|
|
this.parsePropertyName(prop);
|
|
if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
|
|
isAsync = true;
|
|
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
|
|
this.parsePropertyName(prop, refDestructuringErrors);
|
|
} else {
|
|
isAsync = false;
|
|
}
|
|
this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);
|
|
return this.finishNode(prop, "Property")
|
|
};
|
|
|
|
pp$3.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
|
|
if ((isGenerator || isAsync) && this.type === types.colon)
|
|
{ this.unexpected(); }
|
|
|
|
if (this.eat(types.colon)) {
|
|
prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
|
|
prop.kind = "init";
|
|
} else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
|
|
if (isPattern) { this.unexpected(); }
|
|
prop.kind = "init";
|
|
prop.method = true;
|
|
prop.value = this.parseMethod(isGenerator, isAsync);
|
|
} else if (!isPattern && !containsEsc &&
|
|
this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
|
|
(prop.key.name === "get" || prop.key.name === "set") &&
|
|
(this.type != types.comma && this.type != types.braceR)) {
|
|
if (isGenerator || isAsync) { this.unexpected(); }
|
|
prop.kind = prop.key.name;
|
|
this.parsePropertyName(prop);
|
|
prop.value = this.parseMethod(false);
|
|
var paramCount = prop.kind === "get" ? 0 : 1;
|
|
if (prop.value.params.length !== paramCount) {
|
|
var start = prop.value.start;
|
|
if (prop.kind === "get")
|
|
{ this.raiseRecoverable(start, "getter should have no params"); }
|
|
else
|
|
{ this.raiseRecoverable(start, "setter should have exactly one param"); }
|
|
} else {
|
|
if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
|
|
{ this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); }
|
|
}
|
|
} else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
|
|
this.checkUnreserved(prop.key);
|
|
prop.kind = "init";
|
|
if (isPattern) {
|
|
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
|
|
} else if (this.type === types.eq && refDestructuringErrors) {
|
|
if (refDestructuringErrors.shorthandAssign < 0)
|
|
{ refDestructuringErrors.shorthandAssign = this.start; }
|
|
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
|
|
} else {
|
|
prop.value = prop.key;
|
|
}
|
|
prop.shorthand = true;
|
|
} else { this.unexpected(); }
|
|
};
|
|
|
|
pp$3.parsePropertyName = function(prop) {
|
|
if (this.options.ecmaVersion >= 6) {
|
|
if (this.eat(types.bracketL)) {
|
|
prop.computed = true;
|
|
prop.key = this.parseMaybeAssign();
|
|
this.expect(types.bracketR);
|
|
return prop.key
|
|
} else {
|
|
prop.computed = false;
|
|
}
|
|
}
|
|
return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(true)
|
|
};
|
|
|
|
// Initialize empty function node.
|
|
|
|
pp$3.initFunction = function(node) {
|
|
node.id = null;
|
|
if (this.options.ecmaVersion >= 6) {
|
|
node.generator = false;
|
|
node.expression = false;
|
|
}
|
|
if (this.options.ecmaVersion >= 8)
|
|
{ node.async = false; }
|
|
};
|
|
|
|
// Parse object or class method.
|
|
|
|
pp$3.parseMethod = function(isGenerator, isAsync) {
|
|
var node = this.startNode(), oldInGen = this.inGenerator, oldInAsync = this.inAsync,
|
|
oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
|
|
|
|
this.initFunction(node);
|
|
if (this.options.ecmaVersion >= 6)
|
|
{ node.generator = isGenerator; }
|
|
if (this.options.ecmaVersion >= 8)
|
|
{ node.async = !!isAsync; }
|
|
|
|
this.inGenerator = node.generator;
|
|
this.inAsync = node.async;
|
|
this.yieldPos = 0;
|
|
this.awaitPos = 0;
|
|
this.inFunction = true;
|
|
this.enterFunctionScope();
|
|
|
|
this.expect(types.parenL);
|
|
node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
|
|
this.checkYieldAwaitInDefaultParams();
|
|
this.parseFunctionBody(node, false);
|
|
|
|
this.inGenerator = oldInGen;
|
|
this.inAsync = oldInAsync;
|
|
this.yieldPos = oldYieldPos;
|
|
this.awaitPos = oldAwaitPos;
|
|
this.inFunction = oldInFunc;
|
|
return this.finishNode(node, "FunctionExpression")
|
|
};
|
|
|
|
// Parse arrow function expression with given parameters.
|
|
|
|
pp$3.parseArrowExpression = function(node, params, isAsync) {
|
|
var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
|
|
oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
|
|
|
|
this.enterFunctionScope();
|
|
this.initFunction(node);
|
|
if (this.options.ecmaVersion >= 8)
|
|
{ node.async = !!isAsync; }
|
|
|
|
this.inGenerator = false;
|
|
this.inAsync = node.async;
|
|
this.yieldPos = 0;
|
|
this.awaitPos = 0;
|
|
this.inFunction = true;
|
|
|
|
node.params = this.toAssignableList(params, true);
|
|
this.parseFunctionBody(node, true);
|
|
|
|
this.inGenerator = oldInGen;
|
|
this.inAsync = oldInAsync;
|
|
this.yieldPos = oldYieldPos;
|
|
this.awaitPos = oldAwaitPos;
|
|
this.inFunction = oldInFunc;
|
|
return this.finishNode(node, "ArrowFunctionExpression")
|
|
};
|
|
|
|
// Parse function body and check parameters.
|
|
|
|
pp$3.parseFunctionBody = function(node, isArrowFunction) {
|
|
var isExpression = isArrowFunction && this.type !== types.braceL;
|
|
var oldStrict = this.strict, useStrict = false;
|
|
|
|
if (isExpression) {
|
|
node.body = this.parseMaybeAssign();
|
|
node.expression = true;
|
|
this.checkParams(node, false);
|
|
} else {
|
|
var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
|
|
if (!oldStrict || nonSimple) {
|
|
useStrict = this.strictDirective(this.end);
|
|
// If this is a strict mode function, verify that argument names
|
|
// are not repeated, and it does not try to bind the words `eval`
|
|
// or `arguments`.
|
|
if (useStrict && nonSimple)
|
|
{ this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); }
|
|
}
|
|
// Start a new scope with regard to labels and the `inFunction`
|
|
// flag (restore them to their old value afterwards).
|
|
var oldLabels = this.labels;
|
|
this.labels = [];
|
|
if (useStrict) { this.strict = true; }
|
|
|
|
// Add the params to varDeclaredNames to ensure that an error is thrown
|
|
// if a let/const declaration in the function clashes with one of the params.
|
|
this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && this.isSimpleParamList(node.params));
|
|
node.body = this.parseBlock(false);
|
|
node.expression = false;
|
|
this.adaptDirectivePrologue(node.body.body);
|
|
this.labels = oldLabels;
|
|
}
|
|
this.exitFunctionScope();
|
|
|
|
if (this.strict && node.id) {
|
|
// Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'
|
|
this.checkLVal(node.id, "none");
|
|
}
|
|
this.strict = oldStrict;
|
|
};
|
|
|
|
pp$3.isSimpleParamList = function(params) {
|
|
for (var i = 0, list = params; i < list.length; i += 1)
|
|
{
|
|
var param = list[i];
|
|
|
|
if (param.type !== "Identifier") { return false
|
|
} }
|
|
return true
|
|
};
|
|
|
|
// Checks function params for various disallowed patterns such as using "eval"
|
|
// or "arguments" and duplicate parameters.
|
|
|
|
pp$3.checkParams = function(node, allowDuplicates) {
|
|
var this$1 = this;
|
|
|
|
var nameHash = {};
|
|
for (var i = 0, list = node.params; i < list.length; i += 1)
|
|
{
|
|
var param = list[i];
|
|
|
|
this$1.checkLVal(param, "var", allowDuplicates ? null : nameHash);
|
|
}
|
|
};
|
|
|
|
// Parses a comma-separated list of expressions, and returns them as
|
|
// an array. `close` is the token type that ends the list, and
|
|
// `allowEmpty` can be turned on to allow subsequent commas with
|
|
// nothing in between them to be parsed as `null` (which is needed
|
|
// for array literals).
|
|
|
|
pp$3.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
|
|
var this$1 = this;
|
|
|
|
var elts = [], first = true;
|
|
while (!this.eat(close)) {
|
|
if (!first) {
|
|
this$1.expect(types.comma);
|
|
if (allowTrailingComma && this$1.afterTrailingComma(close)) { break }
|
|
} else { first = false; }
|
|
|
|
var elt = (void 0);
|
|
if (allowEmpty && this$1.type === types.comma)
|
|
{ elt = null; }
|
|
else if (this$1.type === types.ellipsis) {
|
|
elt = this$1.parseSpread(refDestructuringErrors);
|
|
if (refDestructuringErrors && this$1.type === types.comma && refDestructuringErrors.trailingComma < 0)
|
|
{ refDestructuringErrors.trailingComma = this$1.start; }
|
|
} else {
|
|
elt = this$1.parseMaybeAssign(false, refDestructuringErrors);
|
|
}
|
|
elts.push(elt);
|
|
}
|
|
return elts
|
|
};
|
|
|
|
pp$3.checkUnreserved = function(ref) {
|
|
var start = ref.start;
|
|
var end = ref.end;
|
|
var name = ref.name;
|
|
|
|
if (this.inGenerator && name === "yield")
|
|
{ this.raiseRecoverable(start, "Can not use 'yield' as identifier inside a generator"); }
|
|
if (this.inAsync && name === "await")
|
|
{ this.raiseRecoverable(start, "Can not use 'await' as identifier inside an async function"); }
|
|
if (this.isKeyword(name))
|
|
{ this.raise(start, ("Unexpected keyword '" + name + "'")); }
|
|
if (this.options.ecmaVersion < 6 &&
|
|
this.input.slice(start, end).indexOf("\\") != -1) { return }
|
|
var re = this.strict ? this.reservedWordsStrict : this.reservedWords;
|
|
if (re.test(name)) {
|
|
if (!this.inAsync && name === "await")
|
|
{ this.raiseRecoverable(start, "Can not use keyword 'await' outside an async function"); }
|
|
this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved"));
|
|
}
|
|
};
|
|
|
|
// Parse the next token as an identifier. If `liberal` is true (used
|
|
// when parsing properties), it will also convert keywords into
|
|
// identifiers.
|
|
|
|
pp$3.parseIdent = function(liberal, isBinding) {
|
|
var node = this.startNode();
|
|
if (liberal && this.options.allowReserved == "never") { liberal = false; }
|
|
if (this.type === types.name) {
|
|
node.name = this.value;
|
|
} else if (this.type.keyword) {
|
|
node.name = this.type.keyword;
|
|
|
|
// To fix https://github.com/acornjs/acorn/issues/575
|
|
// `class` and `function` keywords push new context into this.context.
|
|
// But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name.
|
|
// If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword
|
|
if ((node.name === "class" || node.name === "function") &&
|
|
(this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) {
|
|
this.context.pop();
|
|
}
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
this.next();
|
|
this.finishNode(node, "Identifier");
|
|
if (!liberal) { this.checkUnreserved(node); }
|
|
return node
|
|
};
|
|
|
|
// Parses yield expression inside generator.
|
|
|
|
pp$3.parseYield = function() {
|
|
if (!this.yieldPos) { this.yieldPos = this.start; }
|
|
|
|
var node = this.startNode();
|
|
this.next();
|
|
if (this.type == types.semi || this.canInsertSemicolon() || (this.type != types.star && !this.type.startsExpr)) {
|
|
node.delegate = false;
|
|
node.argument = null;
|
|
} else {
|
|
node.delegate = this.eat(types.star);
|
|
node.argument = this.parseMaybeAssign();
|
|
}
|
|
return this.finishNode(node, "YieldExpression")
|
|
};
|
|
|
|
pp$3.parseAwait = function() {
|
|
if (!this.awaitPos) { this.awaitPos = this.start; }
|
|
|
|
var node = this.startNode();
|
|
this.next();
|
|
node.argument = this.parseMaybeUnary(null, true);
|
|
return this.finishNode(node, "AwaitExpression")
|
|
};
|
|
|
|
var pp$4 = Parser.prototype;
|
|
|
|
// This function is used to raise exceptions on parse errors. It
|
|
// takes an offset integer (into the current `input`) to indicate
|
|
// the location of the error, attaches the position to the end
|
|
// of the error message, and then raises a `SyntaxError` with that
|
|
// message.
|
|
|
|
pp$4.raise = function(pos, message) {
|
|
var loc = getLineInfo(this.input, pos);
|
|
message += " (" + loc.line + ":" + loc.column + ")";
|
|
var err = new SyntaxError(message);
|
|
err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
|
|
throw err
|
|
};
|
|
|
|
pp$4.raiseRecoverable = pp$4.raise;
|
|
|
|
pp$4.curPosition = function() {
|
|
if (this.options.locations) {
|
|
return new Position(this.curLine, this.pos - this.lineStart)
|
|
}
|
|
};
|
|
|
|
var pp$5 = Parser.prototype;
|
|
|
|
// Object.assign polyfill
|
|
var assign = Object.assign || function(target) {
|
|
var sources = [], len = arguments.length - 1;
|
|
while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
|
|
|
|
for (var i = 0, list = sources; i < list.length; i += 1) {
|
|
var source = list[i];
|
|
|
|
for (var key in source) {
|
|
if (has(source, key)) {
|
|
target[key] = source[key];
|
|
}
|
|
}
|
|
}
|
|
return target
|
|
};
|
|
|
|
// The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.
|
|
|
|
pp$5.enterFunctionScope = function() {
|
|
// var: a hash of var-declared names in the current lexical scope
|
|
// lexical: a hash of lexically-declared names in the current lexical scope
|
|
// childVar: a hash of var-declared names in all child lexical scopes of the current lexical scope (within the current function scope)
|
|
// parentLexical: a hash of lexically-declared names in all parent lexical scopes of the current lexical scope (within the current function scope)
|
|
this.scopeStack.push({var: {}, lexical: {}, childVar: {}, parentLexical: {}});
|
|
};
|
|
|
|
pp$5.exitFunctionScope = function() {
|
|
this.scopeStack.pop();
|
|
};
|
|
|
|
pp$5.enterLexicalScope = function() {
|
|
var parentScope = this.scopeStack[this.scopeStack.length - 1];
|
|
var childScope = {var: {}, lexical: {}, childVar: {}, parentLexical: {}};
|
|
|
|
this.scopeStack.push(childScope);
|
|
assign(childScope.parentLexical, parentScope.lexical, parentScope.parentLexical);
|
|
};
|
|
|
|
pp$5.exitLexicalScope = function() {
|
|
var childScope = this.scopeStack.pop();
|
|
var parentScope = this.scopeStack[this.scopeStack.length - 1];
|
|
|
|
assign(parentScope.childVar, childScope.var, childScope.childVar);
|
|
};
|
|
|
|
/**
|
|
* A name can be declared with `var` if there are no variables with the same name declared with `let`/`const`
|
|
* in the current lexical scope or any of the parent lexical scopes in this function.
|
|
*/
|
|
pp$5.canDeclareVarName = function(name) {
|
|
var currentScope = this.scopeStack[this.scopeStack.length - 1];
|
|
|
|
return !has(currentScope.lexical, name) && !has(currentScope.parentLexical, name)
|
|
};
|
|
|
|
/**
|
|
* A name can be declared with `let`/`const` if there are no variables with the same name declared with `let`/`const`
|
|
* in the current scope, and there are no variables with the same name declared with `var` in the current scope or in
|
|
* any child lexical scopes in this function.
|
|
*/
|
|
pp$5.canDeclareLexicalName = function(name) {
|
|
var currentScope = this.scopeStack[this.scopeStack.length - 1];
|
|
|
|
return !has(currentScope.lexical, name) && !has(currentScope.var, name) && !has(currentScope.childVar, name)
|
|
};
|
|
|
|
pp$5.declareVarName = function(name) {
|
|
this.scopeStack[this.scopeStack.length - 1].var[name] = true;
|
|
};
|
|
|
|
pp$5.declareLexicalName = function(name) {
|
|
this.scopeStack[this.scopeStack.length - 1].lexical[name] = true;
|
|
};
|
|
|
|
var Node = function Node(parser, pos, loc) {
|
|
this.type = "";
|
|
this.start = pos;
|
|
this.end = 0;
|
|
if (parser.options.locations)
|
|
{ this.loc = new SourceLocation(parser, loc); }
|
|
if (parser.options.directSourceFile)
|
|
{ this.sourceFile = parser.options.directSourceFile; }
|
|
if (parser.options.ranges)
|
|
{ this.range = [pos, 0]; }
|
|
};
|
|
|
|
// Start an AST node, attaching a start offset.
|
|
|
|
var pp$6 = Parser.prototype;
|
|
|
|
pp$6.startNode = function() {
|
|
return new Node(this, this.start, this.startLoc)
|
|
};
|
|
|
|
pp$6.startNodeAt = function(pos, loc) {
|
|
return new Node(this, pos, loc)
|
|
};
|
|
|
|
// Finish an AST node, adding `type` and `end` properties.
|
|
|
|
function finishNodeAt(node, type, pos, loc) {
|
|
node.type = type;
|
|
node.end = pos;
|
|
if (this.options.locations)
|
|
{ node.loc.end = loc; }
|
|
if (this.options.ranges)
|
|
{ node.range[1] = pos; }
|
|
return node
|
|
}
|
|
|
|
pp$6.finishNode = function(node, type) {
|
|
return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
|
|
};
|
|
|
|
// Finish node at given position
|
|
|
|
pp$6.finishNodeAt = function(node, type, pos, loc) {
|
|
return finishNodeAt.call(this, node, type, pos, loc)
|
|
};
|
|
|
|
// The algorithm used to determine whether a regexp can appear at a
|
|
// given point in the program is loosely based on sweet.js' approach.
|
|
// See https://github.com/mozilla/sweet.js/wiki/design
|
|
|
|
var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {
|
|
this.token = token;
|
|
this.isExpr = !!isExpr;
|
|
this.preserveSpace = !!preserveSpace;
|
|
this.override = override;
|
|
this.generator = !!generator;
|
|
};
|
|
|
|
var types$1 = {
|
|
b_stat: new TokContext("{", false),
|
|
b_expr: new TokContext("{", true),
|
|
b_tmpl: new TokContext("${", false),
|
|
p_stat: new TokContext("(", false),
|
|
p_expr: new TokContext("(", true),
|
|
q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }),
|
|
f_stat: new TokContext("function", false),
|
|
f_expr: new TokContext("function", true),
|
|
f_expr_gen: new TokContext("function", true, false, null, true),
|
|
f_gen: new TokContext("function", false, false, null, true)
|
|
};
|
|
|
|
var pp$7 = Parser.prototype;
|
|
|
|
pp$7.initialContext = function() {
|
|
return [types$1.b_stat]
|
|
};
|
|
|
|
pp$7.braceIsBlock = function(prevType) {
|
|
var parent = this.curContext();
|
|
if (parent === types$1.f_expr || parent === types$1.f_stat)
|
|
{ return true }
|
|
if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
|
|
{ return !parent.isExpr }
|
|
|
|
// The check for `tt.name && exprAllowed` detects whether we are
|
|
// after a `yield` or `of` construct. See the `updateContext` for
|
|
// `tt.name`.
|
|
if (prevType === types._return || prevType == types.name && this.exprAllowed)
|
|
{ return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
|
|
if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType == types.arrow)
|
|
{ return true }
|
|
if (prevType == types.braceL)
|
|
{ return parent === types$1.b_stat }
|
|
if (prevType == types._var || prevType == types.name)
|
|
{ return false }
|
|
return !this.exprAllowed
|
|
};
|
|
|
|
pp$7.inGeneratorContext = function() {
|
|
var this$1 = this;
|
|
|
|
for (var i = this.context.length - 1; i >= 1; i--) {
|
|
var context = this$1.context[i];
|
|
if (context.token === "function")
|
|
{ return context.generator }
|
|
}
|
|
return false
|
|
};
|
|
|
|
pp$7.updateContext = function(prevType) {
|
|
var update, type = this.type;
|
|
if (type.keyword && prevType == types.dot)
|
|
{ this.exprAllowed = false; }
|
|
else if (update = type.updateContext)
|
|
{ update.call(this, prevType); }
|
|
else
|
|
{ this.exprAllowed = type.beforeExpr; }
|
|
};
|
|
|
|
// Token-specific context update code
|
|
|
|
types.parenR.updateContext = types.braceR.updateContext = function() {
|
|
if (this.context.length == 1) {
|
|
this.exprAllowed = true;
|
|
return
|
|
}
|
|
var out = this.context.pop();
|
|
if (out === types$1.b_stat && this.curContext().token === "function") {
|
|
out = this.context.pop();
|
|
}
|
|
this.exprAllowed = !out.isExpr;
|
|
};
|
|
|
|
types.braceL.updateContext = function(prevType) {
|
|
this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
|
|
this.exprAllowed = true;
|
|
};
|
|
|
|
types.dollarBraceL.updateContext = function() {
|
|
this.context.push(types$1.b_tmpl);
|
|
this.exprAllowed = true;
|
|
};
|
|
|
|
types.parenL.updateContext = function(prevType) {
|
|
var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
|
|
this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
|
|
this.exprAllowed = true;
|
|
};
|
|
|
|
types.incDec.updateContext = function() {
|
|
// tokExprAllowed stays unchanged
|
|
};
|
|
|
|
types._function.updateContext = types._class.updateContext = function(prevType) {
|
|
if (prevType.beforeExpr && prevType !== types.semi && prevType !== types._else &&
|
|
!((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
|
|
{ this.context.push(types$1.f_expr); }
|
|
else
|
|
{ this.context.push(types$1.f_stat); }
|
|
this.exprAllowed = false;
|
|
};
|
|
|
|
types.backQuote.updateContext = function() {
|
|
if (this.curContext() === types$1.q_tmpl)
|
|
{ this.context.pop(); }
|
|
else
|
|
{ this.context.push(types$1.q_tmpl); }
|
|
this.exprAllowed = false;
|
|
};
|
|
|
|
types.star.updateContext = function(prevType) {
|
|
if (prevType == types._function) {
|
|
var index = this.context.length - 1;
|
|
if (this.context[index] === types$1.f_expr)
|
|
{ this.context[index] = types$1.f_expr_gen; }
|
|
else
|
|
{ this.context[index] = types$1.f_gen; }
|
|
}
|
|
this.exprAllowed = true;
|
|
};
|
|
|
|
types.name.updateContext = function(prevType) {
|
|
var allowed = false;
|
|
if (this.options.ecmaVersion >= 6) {
|
|
if (this.value == "of" && !this.exprAllowed ||
|
|
this.value == "yield" && this.inGeneratorContext())
|
|
{ allowed = true; }
|
|
}
|
|
this.exprAllowed = allowed;
|
|
};
|
|
|
|
// Object type used to represent tokens. Note that normally, tokens
|
|
// simply exist as properties on the parser object. This is only
|
|
// used for the onToken callback and the external tokenizer.
|
|
|
|
var Token = function Token(p) {
|
|
this.type = p.type;
|
|
this.value = p.value;
|
|
this.start = p.start;
|
|
this.end = p.end;
|
|
if (p.options.locations)
|
|
{ this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }
|
|
if (p.options.ranges)
|
|
{ this.range = [p.start, p.end]; }
|
|
};
|
|
|
|
// ## Tokenizer
|
|
|
|
var pp$8 = Parser.prototype;
|
|
|
|
// Are we running under Rhino?
|
|
var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]";
|
|
|
|
// Move to the next token
|
|
|
|
pp$8.next = function() {
|
|
if (this.options.onToken)
|
|
{ this.options.onToken(new Token(this)); }
|
|
|
|
this.lastTokEnd = this.end;
|
|
this.lastTokStart = this.start;
|
|
this.lastTokEndLoc = this.endLoc;
|
|
this.lastTokStartLoc = this.startLoc;
|
|
this.nextToken();
|
|
};
|
|
|
|
pp$8.getToken = function() {
|
|
this.next();
|
|
return new Token(this)
|
|
};
|
|
|
|
// If we're in an ES6 environment, make parsers iterable
|
|
if (typeof Symbol !== "undefined")
|
|
{ pp$8[Symbol.iterator] = function() {
|
|
var this$1 = this;
|
|
|
|
return {
|
|
next: function () {
|
|
var token = this$1.getToken();
|
|
return {
|
|
done: token.type === types.eof,
|
|
value: token
|
|
}
|
|
}
|
|
}
|
|
}; }
|
|
|
|
// Toggle strict mode. Re-reads the next number or string to please
|
|
// pedantic tests (`"use strict"; 010;` should fail).
|
|
|
|
pp$8.curContext = function() {
|
|
return this.context[this.context.length - 1]
|
|
};
|
|
|
|
// Read a single token, updating the parser object's token-related
|
|
// properties.
|
|
|
|
pp$8.nextToken = function() {
|
|
var curContext = this.curContext();
|
|
if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
|
|
|
|
this.start = this.pos;
|
|
if (this.options.locations) { this.startLoc = this.curPosition(); }
|
|
if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
|
|
|
|
if (curContext.override) { return curContext.override(this) }
|
|
else { this.readToken(this.fullCharCodeAtPos()); }
|
|
};
|
|
|
|
pp$8.readToken = function(code) {
|
|
// Identifier or keyword. '\uXXXX' sequences are allowed in
|
|
// identifiers, so '\' also dispatches to that.
|
|
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
|
|
{ return this.readWord() }
|
|
|
|
return this.getTokenFromCode(code)
|
|
};
|
|
|
|
pp$8.fullCharCodeAtPos = function() {
|
|
var code = this.input.charCodeAt(this.pos);
|
|
if (code <= 0xd7ff || code >= 0xe000) { return code }
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
return (code << 10) + next - 0x35fdc00
|
|
};
|
|
|
|
pp$8.skipBlockComment = function() {
|
|
var this$1 = this;
|
|
|
|
var startLoc = this.options.onComment && this.curPosition();
|
|
var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
|
|
if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
|
|
this.pos = end + 2;
|
|
if (this.options.locations) {
|
|
lineBreakG.lastIndex = start;
|
|
var match;
|
|
while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
|
|
++this$1.curLine;
|
|
this$1.lineStart = match.index + match[0].length;
|
|
}
|
|
}
|
|
if (this.options.onComment)
|
|
{ this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
|
|
startLoc, this.curPosition()); }
|
|
};
|
|
|
|
pp$8.skipLineComment = function(startSkip) {
|
|
var this$1 = this;
|
|
|
|
var start = this.pos;
|
|
var startLoc = this.options.onComment && this.curPosition();
|
|
var ch = this.input.charCodeAt(this.pos += startSkip);
|
|
while (this.pos < this.input.length && !isNewLine(ch)) {
|
|
ch = this$1.input.charCodeAt(++this$1.pos);
|
|
}
|
|
if (this.options.onComment)
|
|
{ this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
|
|
startLoc, this.curPosition()); }
|
|
};
|
|
|
|
// Called at the start of the parse and after every token. Skips
|
|
// whitespace and comments, and.
|
|
|
|
pp$8.skipSpace = function() {
|
|
var this$1 = this;
|
|
|
|
loop: while (this.pos < this.input.length) {
|
|
var ch = this$1.input.charCodeAt(this$1.pos);
|
|
switch (ch) {
|
|
case 32: case 160: // ' '
|
|
++this$1.pos;
|
|
break
|
|
case 13:
|
|
if (this$1.input.charCodeAt(this$1.pos + 1) === 10) {
|
|
++this$1.pos;
|
|
}
|
|
case 10: case 8232: case 8233:
|
|
++this$1.pos;
|
|
if (this$1.options.locations) {
|
|
++this$1.curLine;
|
|
this$1.lineStart = this$1.pos;
|
|
}
|
|
break
|
|
case 47: // '/'
|
|
switch (this$1.input.charCodeAt(this$1.pos + 1)) {
|
|
case 42: // '*'
|
|
this$1.skipBlockComment();
|
|
break
|
|
case 47:
|
|
this$1.skipLineComment(2);
|
|
break
|
|
default:
|
|
break loop
|
|
}
|
|
break
|
|
default:
|
|
if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
|
|
++this$1.pos;
|
|
} else {
|
|
break loop
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
// Called at the end of every token. Sets `end`, `val`, and
|
|
// maintains `context` and `exprAllowed`, and skips the space after
|
|
// the token, so that the next one's `start` will point at the
|
|
// right position.
|
|
|
|
pp$8.finishToken = function(type, val) {
|
|
this.end = this.pos;
|
|
if (this.options.locations) { this.endLoc = this.curPosition(); }
|
|
var prevType = this.type;
|
|
this.type = type;
|
|
this.value = val;
|
|
|
|
this.updateContext(prevType);
|
|
};
|
|
|
|
// ### Token reading
|
|
|
|
// This is the function that is called to fetch the next token. It
|
|
// is somewhat obscure, because it works in character codes rather
|
|
// than characters, and because operator parsing has been inlined
|
|
// into it.
|
|
//
|
|
// All in the name of speed.
|
|
//
|
|
pp$8.readToken_dot = function() {
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (next >= 48 && next <= 57) { return this.readNumber(true) }
|
|
var next2 = this.input.charCodeAt(this.pos + 2);
|
|
if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
|
|
this.pos += 3;
|
|
return this.finishToken(types.ellipsis)
|
|
} else {
|
|
++this.pos;
|
|
return this.finishToken(types.dot)
|
|
}
|
|
};
|
|
|
|
pp$8.readToken_slash = function() { // '/'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
|
|
if (next === 61) { return this.finishOp(types.assign, 2) }
|
|
return this.finishOp(types.slash, 1)
|
|
};
|
|
|
|
pp$8.readToken_mult_modulo_exp = function(code) { // '%*'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
var size = 1;
|
|
var tokentype = code === 42 ? types.star : types.modulo;
|
|
|
|
// exponentiation operator ** and **=
|
|
if (this.options.ecmaVersion >= 7 && code == 42 && next === 42) {
|
|
++size;
|
|
tokentype = types.starstar;
|
|
next = this.input.charCodeAt(this.pos + 2);
|
|
}
|
|
|
|
if (next === 61) { return this.finishOp(types.assign, size + 1) }
|
|
return this.finishOp(tokentype, size)
|
|
};
|
|
|
|
pp$8.readToken_pipe_amp = function(code) { // '|&'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (next === code) { return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2) }
|
|
if (next === 61) { return this.finishOp(types.assign, 2) }
|
|
return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
|
|
};
|
|
|
|
pp$8.readToken_caret = function() { // '^'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (next === 61) { return this.finishOp(types.assign, 2) }
|
|
return this.finishOp(types.bitwiseXOR, 1)
|
|
};
|
|
|
|
pp$8.readToken_plus_min = function(code) { // '+-'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (next === code) {
|
|
if (next == 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) == 62 &&
|
|
(this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {
|
|
// A `-->` line comment
|
|
this.skipLineComment(3);
|
|
this.skipSpace();
|
|
return this.nextToken()
|
|
}
|
|
return this.finishOp(types.incDec, 2)
|
|
}
|
|
if (next === 61) { return this.finishOp(types.assign, 2) }
|
|
return this.finishOp(types.plusMin, 1)
|
|
};
|
|
|
|
pp$8.readToken_lt_gt = function(code) { // '<>'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
var size = 1;
|
|
if (next === code) {
|
|
size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
|
|
if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
|
|
return this.finishOp(types.bitShift, size)
|
|
}
|
|
if (next == 33 && code == 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) == 45 &&
|
|
this.input.charCodeAt(this.pos + 3) == 45) {
|
|
// `<!--`, an XML-style comment that should be interpreted as a line comment
|
|
this.skipLineComment(4);
|
|
this.skipSpace();
|
|
return this.nextToken()
|
|
}
|
|
if (next === 61) { size = 2; }
|
|
return this.finishOp(types.relational, size)
|
|
};
|
|
|
|
pp$8.readToken_eq_excl = function(code) { // '=!'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
|
|
if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
|
|
this.pos += 2;
|
|
return this.finishToken(types.arrow)
|
|
}
|
|
return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
|
|
};
|
|
|
|
pp$8.getTokenFromCode = function(code) {
|
|
switch (code) {
|
|
// The interpretation of a dot depends on whether it is followed
|
|
// by a digit or another two dots.
|
|
case 46: // '.'
|
|
return this.readToken_dot()
|
|
|
|
// Punctuation tokens.
|
|
case 40: ++this.pos; return this.finishToken(types.parenL)
|
|
case 41: ++this.pos; return this.finishToken(types.parenR)
|
|
case 59: ++this.pos; return this.finishToken(types.semi)
|
|
case 44: ++this.pos; return this.finishToken(types.comma)
|
|
case 91: ++this.pos; return this.finishToken(types.bracketL)
|
|
case 93: ++this.pos; return this.finishToken(types.bracketR)
|
|
case 123: ++this.pos; return this.finishToken(types.braceL)
|
|
case 125: ++this.pos; return this.finishToken(types.braceR)
|
|
case 58: ++this.pos; return this.finishToken(types.colon)
|
|
case 63: ++this.pos; return this.finishToken(types.question)
|
|
|
|
case 96: // '`'
|
|
if (this.options.ecmaVersion < 6) { break }
|
|
++this.pos;
|
|
return this.finishToken(types.backQuote)
|
|
|
|
case 48: // '0'
|
|
var next = this.input.charCodeAt(this.pos + 1);
|
|
if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x', '0X' - hex number
|
|
if (this.options.ecmaVersion >= 6) {
|
|
if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number
|
|
if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number
|
|
}
|
|
|
|
// Anything else beginning with a digit is an integer, octal
|
|
// number, or float.
|
|
case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
|
|
return this.readNumber(false)
|
|
|
|
// Quotes produce strings.
|
|
case 34: case 39: // '"', "'"
|
|
return this.readString(code)
|
|
|
|
// Operators are parsed inline in tiny state machines. '=' (61) is
|
|
// often referred to. `finishOp` simply skips the amount of
|
|
// characters it is given as second argument, and returns a token
|
|
// of the type given by its first argument.
|
|
|
|
case 47: // '/'
|
|
return this.readToken_slash()
|
|
|
|
case 37: case 42: // '%*'
|
|
return this.readToken_mult_modulo_exp(code)
|
|
|
|
case 124: case 38: // '|&'
|
|
return this.readToken_pipe_amp(code)
|
|
|
|
case 94: // '^'
|
|
return this.readToken_caret()
|
|
|
|
case 43: case 45: // '+-'
|
|
return this.readToken_plus_min(code)
|
|
|
|
case 60: case 62: // '<>'
|
|
return this.readToken_lt_gt(code)
|
|
|
|
case 61: case 33: // '=!'
|
|
return this.readToken_eq_excl(code)
|
|
|
|
case 126: // '~'
|
|
return this.finishOp(types.prefix, 1)
|
|
}
|
|
|
|
this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
|
|
};
|
|
|
|
pp$8.finishOp = function(type, size) {
|
|
var str = this.input.slice(this.pos, this.pos + size);
|
|
this.pos += size;
|
|
return this.finishToken(type, str)
|
|
};
|
|
|
|
// Parse a regular expression. Some context-awareness is necessary,
|
|
// since a '/' inside a '[]' set does not end the expression.
|
|
|
|
function tryCreateRegexp(src, flags, throwErrorAt, parser) {
|
|
try {
|
|
return new RegExp(src, flags)
|
|
} catch (e) {
|
|
if (throwErrorAt !== undefined) {
|
|
if (e instanceof SyntaxError) { parser.raise(throwErrorAt, "Error parsing regular expression: " + e.message); }
|
|
throw e
|
|
}
|
|
}
|
|
}
|
|
|
|
var regexpUnicodeSupport = !!tryCreateRegexp("\uffff", "u");
|
|
|
|
pp$8.readRegexp = function() {
|
|
var this$1 = this;
|
|
|
|
var escaped, inClass, start = this.pos;
|
|
for (;;) {
|
|
if (this$1.pos >= this$1.input.length) { this$1.raise(start, "Unterminated regular expression"); }
|
|
var ch = this$1.input.charAt(this$1.pos);
|
|
if (lineBreak.test(ch)) { this$1.raise(start, "Unterminated regular expression"); }
|
|
if (!escaped) {
|
|
if (ch === "[") { inClass = true; }
|
|
else if (ch === "]" && inClass) { inClass = false; }
|
|
else if (ch === "/" && !inClass) { break }
|
|
escaped = ch === "\\";
|
|
} else { escaped = false; }
|
|
++this$1.pos;
|
|
}
|
|
var content = this.input.slice(start, this.pos);
|
|
++this.pos;
|
|
var flagsStart = this.pos;
|
|
var mods = this.readWord1();
|
|
if (this.containsEsc) { this.unexpected(flagsStart); }
|
|
|
|
var tmp = content, tmpFlags = "";
|
|
if (mods) {
|
|
var validFlags = "gim";
|
|
if (this.options.ecmaVersion >= 6) { validFlags += "uy"; }
|
|
if (this.options.ecmaVersion >= 9) { validFlags += "s"; }
|
|
for (var i = 0; i < mods.length; i++) {
|
|
var mod = mods.charAt(i);
|
|
if (validFlags.indexOf(mod) == -1) { this$1.raise(start, "Invalid regular expression flag"); }
|
|
if (mods.indexOf(mod, i + 1) > -1) { this$1.raise(start, "Duplicate regular expression flag"); }
|
|
}
|
|
if (mods.indexOf("u") >= 0) {
|
|
if (regexpUnicodeSupport) {
|
|
tmpFlags = "u";
|
|
} else {
|
|
// Replace each astral symbol and every Unicode escape sequence that
|
|
// possibly represents an astral symbol or a paired surrogate with a
|
|
// single ASCII symbol to avoid throwing on regular expressions that
|
|
// are only valid in combination with the `/u` flag.
|
|
// Note: replacing with the ASCII symbol `x` might cause false
|
|
// negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
|
|
// perfectly valid pattern that is equivalent to `[a-b]`, but it would
|
|
// be replaced by `[x-b]` which throws an error.
|
|
tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, function (_match, code, offset) {
|
|
code = Number("0x" + code);
|
|
if (code > 0x10FFFF) { this$1.raise(start + offset + 3, "Code point out of bounds"); }
|
|
return "x"
|
|
});
|
|
tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x");
|
|
tmpFlags = tmpFlags.replace("u", "");
|
|
}
|
|
}
|
|
}
|
|
// Detect invalid regular expressions.
|
|
var value = null;
|
|
// Rhino's regular expression parser is flaky and throws uncatchable exceptions,
|
|
// so don't do detection if we are running under Rhino
|
|
if (!isRhino) {
|
|
tryCreateRegexp(tmp, tmpFlags, start, this);
|
|
// Get a regular expression object for this pattern-flag pair, or `null` in
|
|
// case the current environment doesn't support the flags it uses.
|
|
value = tryCreateRegexp(content, mods);
|
|
}
|
|
return this.finishToken(types.regexp, {pattern: content, flags: mods, value: value})
|
|
};
|
|
|
|
// Read an integer in the given radix. Return null if zero digits
|
|
// were read, the integer value otherwise. When `len` is given, this
|
|
// will return `null` unless the integer has exactly `len` digits.
|
|
|
|
pp$8.readInt = function(radix, len) {
|
|
var this$1 = this;
|
|
|
|
var start = this.pos, total = 0;
|
|
for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
|
|
var code = this$1.input.charCodeAt(this$1.pos), val = (void 0);
|
|
if (code >= 97) { val = code - 97 + 10; } // a
|
|
else if (code >= 65) { val = code - 65 + 10; } // A
|
|
else if (code >= 48 && code <= 57) { val = code - 48; } // 0-9
|
|
else { val = Infinity; }
|
|
if (val >= radix) { break }
|
|
++this$1.pos;
|
|
total = total * radix + val;
|
|
}
|
|
if (this.pos === start || len != null && this.pos - start !== len) { return null }
|
|
|
|
return total
|
|
};
|
|
|
|
pp$8.readRadixNumber = function(radix) {
|
|
this.pos += 2; // 0x
|
|
var val = this.readInt(radix);
|
|
if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
|
|
if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
|
|
return this.finishToken(types.num, val)
|
|
};
|
|
|
|
// Read an integer, octal integer, or floating-point number.
|
|
|
|
pp$8.readNumber = function(startsWithDot) {
|
|
var start = this.pos;
|
|
if (!startsWithDot && this.readInt(10) === null) { this.raise(start, "Invalid number"); }
|
|
var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
|
|
if (octal && this.strict) { this.raise(start, "Invalid number"); }
|
|
if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
|
|
var next = this.input.charCodeAt(this.pos);
|
|
if (next === 46 && !octal) { // '.'
|
|
++this.pos;
|
|
this.readInt(10);
|
|
next = this.input.charCodeAt(this.pos);
|
|
}
|
|
if ((next === 69 || next === 101) && !octal) { // 'eE'
|
|
next = this.input.charCodeAt(++this.pos);
|
|
if (next === 43 || next === 45) { ++this.pos; } // '+-'
|
|
if (this.readInt(10) === null) { this.raise(start, "Invalid number"); }
|
|
}
|
|
if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
|
|
|
|
var str = this.input.slice(start, this.pos);
|
|
var val = octal ? parseInt(str, 8) : parseFloat(str);
|
|
return this.finishToken(types.num, val)
|
|
};
|
|
|
|
// Read a string value, interpreting backslash-escapes.
|
|
|
|
pp$8.readCodePoint = function() {
|
|
var ch = this.input.charCodeAt(this.pos), code;
|
|
|
|
if (ch === 123) { // '{'
|
|
if (this.options.ecmaVersion < 6) { this.unexpected(); }
|
|
var codePos = ++this.pos;
|
|
code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
|
|
++this.pos;
|
|
if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
|
|
} else {
|
|
code = this.readHexChar(4);
|
|
}
|
|
return code
|
|
};
|
|
|
|
function codePointToString(code) {
|
|
// UTF-16 Decoding
|
|
if (code <= 0xFFFF) { return String.fromCharCode(code) }
|
|
code -= 0x10000;
|
|
return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
|
|
}
|
|
|
|
pp$8.readString = function(quote) {
|
|
var this$1 = this;
|
|
|
|
var out = "", chunkStart = ++this.pos;
|
|
for (;;) {
|
|
if (this$1.pos >= this$1.input.length) { this$1.raise(this$1.start, "Unterminated string constant"); }
|
|
var ch = this$1.input.charCodeAt(this$1.pos);
|
|
if (ch === quote) { break }
|
|
if (ch === 92) { // '\'
|
|
out += this$1.input.slice(chunkStart, this$1.pos);
|
|
out += this$1.readEscapedChar(false);
|
|
chunkStart = this$1.pos;
|
|
} else {
|
|
if (isNewLine(ch)) { this$1.raise(this$1.start, "Unterminated string constant"); }
|
|
++this$1.pos;
|
|
}
|
|
}
|
|
out += this.input.slice(chunkStart, this.pos++);
|
|
return this.finishToken(types.string, out)
|
|
};
|
|
|
|
// Reads template string tokens.
|
|
|
|
var INVALID_TEMPLATE_ESCAPE_ERROR = {};
|
|
|
|
pp$8.tryReadTemplateToken = function() {
|
|
this.inTemplateElement = true;
|
|
try {
|
|
this.readTmplToken();
|
|
} catch (err) {
|
|
if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
|
|
this.readInvalidTemplateToken();
|
|
} else {
|
|
throw err
|
|
}
|
|
}
|
|
|
|
this.inTemplateElement = false;
|
|
};
|
|
|
|
pp$8.invalidStringToken = function(position, message) {
|
|
if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
|
|
throw INVALID_TEMPLATE_ESCAPE_ERROR
|
|
} else {
|
|
this.raise(position, message);
|
|
}
|
|
};
|
|
|
|
pp$8.readTmplToken = function() {
|
|
var this$1 = this;
|
|
|
|
var out = "", chunkStart = this.pos;
|
|
for (;;) {
|
|
if (this$1.pos >= this$1.input.length) { this$1.raise(this$1.start, "Unterminated template"); }
|
|
var ch = this$1.input.charCodeAt(this$1.pos);
|
|
if (ch === 96 || ch === 36 && this$1.input.charCodeAt(this$1.pos + 1) === 123) { // '`', '${'
|
|
if (this$1.pos === this$1.start && (this$1.type === types.template || this$1.type === types.invalidTemplate)) {
|
|
if (ch === 36) {
|
|
this$1.pos += 2;
|
|
return this$1.finishToken(types.dollarBraceL)
|
|
} else {
|
|
++this$1.pos;
|
|
return this$1.finishToken(types.backQuote)
|
|
}
|
|
}
|
|
out += this$1.input.slice(chunkStart, this$1.pos);
|
|
return this$1.finishToken(types.template, out)
|
|
}
|
|
if (ch === 92) { // '\'
|
|
out += this$1.input.slice(chunkStart, this$1.pos);
|
|
out += this$1.readEscapedChar(true);
|
|
chunkStart = this$1.pos;
|
|
} else if (isNewLine(ch)) {
|
|
out += this$1.input.slice(chunkStart, this$1.pos);
|
|
++this$1.pos;
|
|
switch (ch) {
|
|
case 13:
|
|
if (this$1.input.charCodeAt(this$1.pos) === 10) { ++this$1.pos; }
|
|
case 10:
|
|
out += "\n";
|
|
break
|
|
default:
|
|
out += String.fromCharCode(ch);
|
|
break
|
|
}
|
|
if (this$1.options.locations) {
|
|
++this$1.curLine;
|
|
this$1.lineStart = this$1.pos;
|
|
}
|
|
chunkStart = this$1.pos;
|
|
} else {
|
|
++this$1.pos;
|
|
}
|
|
}
|
|
};
|
|
|
|
// Reads a template token to search for the end, without validating any escape sequences
|
|
pp$8.readInvalidTemplateToken = function() {
|
|
var this$1 = this;
|
|
|
|
for (; this.pos < this.input.length; this.pos++) {
|
|
switch (this$1.input[this$1.pos]) {
|
|
case "\\":
|
|
++this$1.pos;
|
|
break
|
|
|
|
case "$":
|
|
if (this$1.input[this$1.pos + 1] !== "{") {
|
|
break
|
|
}
|
|
// falls through
|
|
|
|
case "`":
|
|
return this$1.finishToken(types.invalidTemplate, this$1.input.slice(this$1.start, this$1.pos))
|
|
|
|
// no default
|
|
}
|
|
}
|
|
this.raise(this.start, "Unterminated template");
|
|
};
|
|
|
|
// Used to read escaped characters
|
|
|
|
pp$8.readEscapedChar = function(inTemplate) {
|
|
var ch = this.input.charCodeAt(++this.pos);
|
|
++this.pos;
|
|
switch (ch) {
|
|
case 110: return "\n" // 'n' -> '\n'
|
|
case 114: return "\r" // 'r' -> '\r'
|
|
case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
|
|
case 117: return codePointToString(this.readCodePoint()) // 'u'
|
|
case 116: return "\t" // 't' -> '\t'
|
|
case 98: return "\b" // 'b' -> '\b'
|
|
case 118: return "\u000b" // 'v' -> '\u000b'
|
|
case 102: return "\f" // 'f' -> '\f'
|
|
case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\r\n'
|
|
case 10: // ' \n'
|
|
if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
|
|
return ""
|
|
default:
|
|
if (ch >= 48 && ch <= 55) {
|
|
var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
|
|
var octal = parseInt(octalStr, 8);
|
|
if (octal > 255) {
|
|
octalStr = octalStr.slice(0, -1);
|
|
octal = parseInt(octalStr, 8);
|
|
}
|
|
this.pos += octalStr.length - 1;
|
|
ch = this.input.charCodeAt(this.pos);
|
|
if ((octalStr !== "0" || ch == 56 || ch == 57) && (this.strict || inTemplate)) {
|
|
this.invalidStringToken(this.pos - 1 - octalStr.length, "Octal literal in strict mode");
|
|
}
|
|
return String.fromCharCode(octal)
|
|
}
|
|
return String.fromCharCode(ch)
|
|
}
|
|
};
|
|
|
|
// Used to read character escape sequences ('\x', '\u', '\U').
|
|
|
|
pp$8.readHexChar = function(len) {
|
|
var codePos = this.pos;
|
|
var n = this.readInt(16, len);
|
|
if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
|
|
return n
|
|
};
|
|
|
|
// Read an identifier, and return it as a string. Sets `this.containsEsc`
|
|
// to whether the word contained a '\u' escape.
|
|
//
|
|
// Incrementally adds only escaped chars, adding other chunks as-is
|
|
// as a micro-optimization.
|
|
|
|
pp$8.readWord1 = function() {
|
|
var this$1 = this;
|
|
|
|
this.containsEsc = false;
|
|
var word = "", first = true, chunkStart = this.pos;
|
|
var astral = this.options.ecmaVersion >= 6;
|
|
while (this.pos < this.input.length) {
|
|
var ch = this$1.fullCharCodeAtPos();
|
|
if (isIdentifierChar(ch, astral)) {
|
|
this$1.pos += ch <= 0xffff ? 1 : 2;
|
|
} else if (ch === 92) { // "\"
|
|
this$1.containsEsc = true;
|
|
word += this$1.input.slice(chunkStart, this$1.pos);
|
|
var escStart = this$1.pos;
|
|
if (this$1.input.charCodeAt(++this$1.pos) != 117) // "u"
|
|
{ this$1.invalidStringToken(this$1.pos, "Expecting Unicode escape sequence \\uXXXX"); }
|
|
++this$1.pos;
|
|
var esc = this$1.readCodePoint();
|
|
if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
|
|
{ this$1.invalidStringToken(escStart, "Invalid Unicode escape"); }
|
|
word += codePointToString(esc);
|
|
chunkStart = this$1.pos;
|
|
} else {
|
|
break
|
|
}
|
|
first = false;
|
|
}
|
|
return word + this.input.slice(chunkStart, this.pos)
|
|
};
|
|
|
|
// Read an identifier or keyword token. Will check for reserved
|
|
// words when necessary.
|
|
|
|
pp$8.readWord = function() {
|
|
var word = this.readWord1();
|
|
var type = types.name;
|
|
if (this.keywords.test(word)) {
|
|
if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword " + word); }
|
|
type = keywords$1[word];
|
|
}
|
|
return this.finishToken(type, word)
|
|
};
|
|
|
|
// Acorn is a tiny, fast JavaScript parser written in JavaScript.
|
|
//
|
|
// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
|
|
// various contributors and released under an MIT license.
|
|
//
|
|
// Git repositories for Acorn are available at
|
|
//
|
|
// http://marijnhaverbeke.nl/git/acorn
|
|
// https://github.com/acornjs/acorn.git
|
|
//
|
|
// Please use the [github bug tracker][ghbt] to report issues.
|
|
//
|
|
// [ghbt]: https://github.com/acornjs/acorn/issues
|
|
//
|
|
// This file defines the main parser interface. The library also comes
|
|
// with a [error-tolerant parser][dammit] and an
|
|
// [abstract syntax tree walker][walk], defined in other files.
|
|
//
|
|
// [dammit]: acorn_loose.js
|
|
// [walk]: util/walk.js
|
|
|
|
var version = "5.4.1";
|
|
|
|
// The main exported interface (under `self.acorn` when in the
|
|
// browser) is a `parse` function that takes a code string and
|
|
// returns an abstract syntax tree as specified by [Mozilla parser
|
|
// API][api].
|
|
//
|
|
// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
|
|
|
|
function parse(input, options) {
|
|
return new Parser(options, input).parse()
|
|
}
|
|
|
|
// This function tries to parse a single expression at a given
|
|
// offset in a string. Useful for parsing mixed-language formats
|
|
// that embed JavaScript expressions.
|
|
|
|
function parseExpressionAt(input, pos, options) {
|
|
var p = new Parser(options, input, pos);
|
|
p.nextToken();
|
|
return p.parseExpression()
|
|
}
|
|
|
|
// Acorn is organized as a tokenizer and a recursive-descent parser.
|
|
// The `tokenizer` export provides an interface to the tokenizer.
|
|
|
|
function tokenizer(input, options) {
|
|
return new Parser(options, input)
|
|
}
|
|
|
|
// This is a terrible kludge to support the existing, pre-ES6
|
|
// interface where the loose parser module retroactively adds exports
|
|
// to this module.
|
|
// eslint-disable-line camelcase
|
|
function addLooseExports(parse, Parser$$1, plugins$$1) {
|
|
exports.parse_dammit = parse; // eslint-disable-line camelcase
|
|
exports.LooseParser = Parser$$1;
|
|
exports.pluginsLoose = plugins$$1;
|
|
}
|
|
|
|
exports.version = version;
|
|
exports.parse = parse;
|
|
exports.parseExpressionAt = parseExpressionAt;
|
|
exports.tokenizer = tokenizer;
|
|
exports.addLooseExports = addLooseExports;
|
|
exports.Parser = Parser;
|
|
exports.plugins = plugins;
|
|
exports.defaultOptions = defaultOptions;
|
|
exports.Position = Position;
|
|
exports.SourceLocation = SourceLocation;
|
|
exports.getLineInfo = getLineInfo;
|
|
exports.Node = Node;
|
|
exports.TokenType = TokenType;
|
|
exports.tokTypes = types;
|
|
exports.keywordTypes = keywords$1;
|
|
exports.TokContext = TokContext;
|
|
exports.tokContexts = types$1;
|
|
exports.isIdentifierChar = isIdentifierChar;
|
|
exports.isIdentifierStart = isIdentifierStart;
|
|
exports.Token = Token;
|
|
exports.isNewLine = isNewLine;
|
|
exports.lineBreak = lineBreak;
|
|
exports.lineBreakG = lineBreakG;
|
|
exports.nonASCIIwhitespace = nonASCIIwhitespace;
|
|
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
|
|
|
})));
|
|
return exports;})();
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Utilities
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
function init() {
|
|
|
|
}
|
|
|
|
function isWindows() {
|
|
return (typeof navigator!="undefined") && navigator.userAgent.indexOf("Windows")>=0;
|
|
}
|
|
|
|
function isAppleDevice() {
|
|
return (typeof navigator!="undefined") && (typeof window!="undefined") && /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
|
|
}
|
|
|
|
function getChromeVersion(){
|
|
return parseInt(window.navigator.appVersion.match(/Chrome\/(.*?) /)[1].split(".")[0]);
|
|
}
|
|
|
|
function isNWApp() {
|
|
return (typeof require === "function") && (typeof require('nw.gui') !== "undefined");
|
|
}
|
|
|
|
function isChromeWebApp() {
|
|
return ((typeof chrome === "object") && chrome.app && chrome.app.window);
|
|
}
|
|
|
|
function isProgressiveWebApp() {
|
|
return !isNWApp() && !isChromeWebApp() && window && window.matchMedia && window.matchMedia('(display-mode: standalone)').matches;
|
|
}
|
|
|
|
function hasNativeTitleBar() {
|
|
return !isNWApp() && !isChromeWebApp();
|
|
}
|
|
|
|
function escapeHTML(text, escapeSpaces)
|
|
{
|
|
escapeSpaces = typeof escapeSpaces !== 'undefined' ? escapeSpaces : true;
|
|
|
|
var chr = { '"': '"', '&': '&', '<': '<', '>': '>', ' ' : (escapeSpaces ? ' ' : ' ') };
|
|
|
|
return text.toString().replace(/[\"&<> ]/g, function (a) { return chr[a]; });
|
|
}
|
|
|
|
/* Google Docs, forums, etc tend to break code by replacing characters with
|
|
fancy unicode versions. Un-break the code by undoing these changes */
|
|
function fixBrokenCode(text)
|
|
{
|
|
// make sure we ignore `­` - which gets inserted
|
|
// by the forum's code formatter
|
|
text = text.replace(/\u00AD/g,'');
|
|
// replace quotes that get auto-replaced by Google Docs and other editors
|
|
text = text.replace(/[\u201c\u201d]/g,'"');
|
|
text = text.replace(/[\u2018\u2019]/g,'\'');
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
function getSubString(str, from, len) {
|
|
if (len == undefined) {
|
|
return str.substr(from, len);
|
|
} else {
|
|
var s = str.substr(from, len);
|
|
while (s.length < len) s+=" ";
|
|
return s;
|
|
}
|
|
};
|
|
|
|
/** Get a Lexer to parse JavaScript - this is really very nasty right now and it doesn't lex even remotely properly.
|
|
* It'll return {type:"type", str:"chars that were parsed", value:"string", startIdx: Index in string of the start, endIdx: Index in string of the end}, until EOF when it returns undefined */
|
|
function getLexer(str) {
|
|
// Nasty lexer - no comments/etc
|
|
var chAlpha="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_$";
|
|
var chNum="0123456789";
|
|
var chAlphaNum = chAlpha+chNum;
|
|
var chWhiteSpace=" \t\n\r";
|
|
var chQuotes = "\"'`";
|
|
var ch;
|
|
var idx = 0;
|
|
var lineNumber = 1;
|
|
var nextCh = function() {
|
|
ch = str[idx++];
|
|
if (ch=="\n") lineNumber++;
|
|
};
|
|
nextCh();
|
|
var isIn = function(s,c) { return s.indexOf(c)>=0; } ;
|
|
var nextToken = function() {
|
|
while (isIn(chWhiteSpace,ch)) {
|
|
nextCh();
|
|
}
|
|
if (ch==undefined) return undefined;
|
|
if (ch=="/") {
|
|
nextCh();
|
|
if (ch=="/") {
|
|
// single line comment
|
|
while (ch!==undefined && ch!="\n") nextCh();
|
|
return nextToken();
|
|
} else if (ch=="*") {
|
|
nextCh();
|
|
var last = ch;
|
|
nextCh();
|
|
// multiline comment
|
|
while (ch!==undefined && !(last=="*" && ch=="/")) {
|
|
last = ch;
|
|
nextCh();
|
|
}
|
|
nextCh();
|
|
return nextToken();
|
|
}
|
|
return {type:"CHAR", str:"/", value:"/", startIdx:idx-2, endIdx:idx-1, lineNumber:lineNumber};
|
|
}
|
|
var s = "";
|
|
var type, value;
|
|
var startIdx = idx-1;
|
|
if (isIn(chAlpha,ch)) { // ID
|
|
type = "ID";
|
|
do {
|
|
s+=ch;
|
|
nextCh();
|
|
} while (isIn(chAlphaNum,ch));
|
|
} else if (isIn(chNum,ch)) { // NUMBER
|
|
type = "NUMBER";
|
|
var chRange = chNum;
|
|
if (ch=="0") { // Handle
|
|
s+=ch;
|
|
nextCh();
|
|
if ("xXoObB".indexOf(ch)>=0) {
|
|
if (ch=="b" || ch=="B") chRange="01";
|
|
if (ch=="o" || ch=="O") chRange="01234567";
|
|
if (ch=="x" || ch=="X") chRange="0123456789ABCDEFabcdef";
|
|
s+=ch;
|
|
nextCh();
|
|
}
|
|
}
|
|
while (isIn(chRange,ch) || ch==".") {
|
|
s+=ch;
|
|
nextCh();
|
|
}
|
|
} else if (isIn(chQuotes,ch)) { // STRING
|
|
type = "STRING";
|
|
var q = ch;
|
|
value = "";
|
|
s+=ch;
|
|
nextCh();
|
|
while (ch!==undefined && ch!=q) {
|
|
s+=ch;
|
|
if (ch=="\\") {
|
|
nextCh();
|
|
s+=ch;
|
|
// FIXME: handle hex/etc correctly here
|
|
}
|
|
value += ch;
|
|
nextCh();
|
|
};
|
|
if (ch!==undefined) s+=ch;
|
|
nextCh();
|
|
} else {
|
|
type = "CHAR";
|
|
s+=ch;
|
|
nextCh();
|
|
}
|
|
if (value===undefined) value=s;
|
|
return {type:type, str:s, value:value, startIdx:startIdx, endIdx:idx-1, lineNumber:lineNumber};
|
|
};
|
|
|
|
return {
|
|
next : nextToken
|
|
};
|
|
};
|
|
|
|
/** Count brackets in a string - will be 0 if all are closed */
|
|
function countBrackets(str) {
|
|
var lex = getLexer(str);
|
|
var brackets = 0;
|
|
var tok = lex.next();
|
|
while (tok!==undefined) {
|
|
if (tok.str=="(" || tok.str=="{" || tok.str=="[") brackets++;
|
|
if (tok.str==")" || tok.str=="}" || tok.str=="]") brackets--;
|
|
tok = lex.next();
|
|
}
|
|
return brackets;
|
|
}
|
|
|
|
/** Try and get a prompt from Espruino - if we don't see one, issue Ctrl-C
|
|
* and hope it comes back. Calls callback with first argument true if it
|
|
had to Ctrl-C out */
|
|
function getEspruinoPrompt(callback) {
|
|
if (Espruino.Core.Terminal!==undefined &&
|
|
Espruino.Core.Terminal.getTerminalLine()==">") {
|
|
console.log("Found a prompt... great!");
|
|
return callback();
|
|
}
|
|
|
|
var receivedData = "";
|
|
var prevReader = Espruino.Core.Serial.startListening(function (readData) {
|
|
var bufView = new Uint8Array(readData);
|
|
for(var i = 0; i < bufView.length; i++) {
|
|
receivedData += String.fromCharCode(bufView[i]);
|
|
}
|
|
if (receivedData[receivedData.length-1] == ">") {
|
|
if (receivedData.substr(-6)=="debug>") {
|
|
console.log("Got debug> - sending Ctrl-C to break out and we'll be good");
|
|
Espruino.Core.Serial.write('\x03');
|
|
} else {
|
|
if (receivedData == "\r\n=undefined\r\n>")
|
|
receivedData=""; // this was just what we expected - so ignore it
|
|
|
|
console.log("Received a prompt after sending newline... good!");
|
|
clearTimeout(timeout);
|
|
nextStep();
|
|
}
|
|
}
|
|
});
|
|
// timeout in case something goes wrong...
|
|
var hadToBreak = false;
|
|
var timeout = setTimeout(function() {
|
|
console.log("Got "+JSON.stringify(receivedData));
|
|
// if we haven't had the prompt displayed for us, Ctrl-C to break out of what we had
|
|
console.log("No Prompt found, got "+JSON.stringify(receivedData[receivedData.length-1])+" - issuing Ctrl-C to try and break out");
|
|
Espruino.Core.Serial.write('\x03');
|
|
hadToBreak = true;
|
|
timeout = setTimeout(function() {
|
|
console.log("Still no prompt - issuing another Ctrl-C");
|
|
Espruino.Core.Serial.write('\x03');
|
|
nextStep();
|
|
},500);
|
|
},500);
|
|
// when we're done...
|
|
var nextStep = function() {
|
|
// send data to console anyway...
|
|
if(prevReader) prevReader(receivedData);
|
|
receivedData = "";
|
|
// start the previous reader listening again
|
|
Espruino.Core.Serial.startListening(prevReader);
|
|
// call our callback
|
|
if (callback) callback(hadToBreak);
|
|
};
|
|
// send a newline, and we hope we'll see '=undefined\r\n>'
|
|
Espruino.Core.Serial.write('\n');
|
|
};
|
|
|
|
/** Return the value of executing an expression on the board. If
|
|
If exprPrintsResult=false/undefined the actual value returned by the expression is returned.
|
|
If exprPrintsResult=true, whatever expression prints to the console is returned */
|
|
function executeExpression(expressionToExecute, callback, exprPrintsResult) {
|
|
var receivedData = "";
|
|
var hadDataSinceTimeout = false;
|
|
var allDataSent = false;
|
|
|
|
var progress = 100;
|
|
function incrementProgress() {
|
|
if (progress==100) {
|
|
Espruino.Core.Status.setStatus("Receiving...",100);
|
|
progress=0;
|
|
} else {
|
|
progress++;
|
|
Espruino.Core.Status.incrementProgress(1);
|
|
}
|
|
}
|
|
|
|
function getProcessInfo(expressionToExecute, callback) {
|
|
var prevReader = Espruino.Core.Serial.startListening(function (readData) {
|
|
var bufView = new Uint8Array(readData);
|
|
for(var i = 0; i < bufView.length; i++) {
|
|
receivedData += String.fromCharCode(bufView[i]);
|
|
}
|
|
if(allDataSent) incrementProgress();
|
|
// check if we got what we wanted
|
|
var startProcess = receivedData.indexOf("< <<");
|
|
var endProcess = receivedData.indexOf(">> >", startProcess);
|
|
if(startProcess >= 0 && endProcess > 0){
|
|
// All good - get the data!
|
|
var result = receivedData.substring(startProcess + 4,endProcess);
|
|
console.log("Got "+JSON.stringify(receivedData));
|
|
// strip out the text we found
|
|
receivedData = receivedData.substr(0,startProcess) + receivedData.substr(endProcess+4);
|
|
// Now stop time timeout
|
|
if (timeout) clearInterval(timeout);
|
|
timeout = "cancelled";
|
|
// Do the next stuff
|
|
nextStep(result);
|
|
} else if (startProcess >= 0) {
|
|
// we got some data - so keep waiting...
|
|
hadDataSinceTimeout = true;
|
|
}
|
|
});
|
|
|
|
// when we're done...
|
|
var nextStep = function(result) {
|
|
Espruino.Core.Status.setStatus("");
|
|
// start the previous reader listing again
|
|
Espruino.Core.Serial.startListening(prevReader);
|
|
// forward the original text to the previous reader
|
|
if(prevReader) prevReader(receivedData);
|
|
// run the callback
|
|
callback(result);
|
|
};
|
|
|
|
var timeout = undefined;
|
|
// Don't Ctrl-C, as we've already got ourselves a prompt with Espruino.Core.Utils.getEspruinoPrompt
|
|
var cmd;
|
|
if (exprPrintsResult)
|
|
cmd = '\x10print("<","<<");'+expressionToExecute+';print(">>",">")\n';
|
|
else
|
|
cmd = '\x10print("<","<<",JSON.stringify('+expressionToExecute+'),">>",">")\n';
|
|
|
|
Espruino.Core.Serial.write(cmd,
|
|
undefined, function() {
|
|
allDataSent = true;
|
|
// now it's sent, wait for data
|
|
var maxTimeout = 30; // seconds - how long we wait if we're getting data
|
|
var minTimeout = 2; // seconds - how long we wait if we're not getting data
|
|
var pollInterval = 500; // milliseconds
|
|
var timeoutSeconds = 0;
|
|
if (timeout != "cancelled") {
|
|
timeout = setInterval(function onTimeout(){
|
|
incrementProgress();
|
|
timeoutSeconds += pollInterval/1000;
|
|
// if we're still getting data, keep waiting for up to 10 secs
|
|
if (hadDataSinceTimeout && timeoutSeconds<maxTimeout) {
|
|
hadDataSinceTimeout = false;
|
|
} else if (timeoutSeconds > minTimeout) {
|
|
// No data yet...
|
|
// OR we keep getting data for > maxTimeout seconds
|
|
clearInterval(timeout);
|
|
console.warn("No result found for "+JSON.stringify(expressionToExecute)+" - just got "+JSON.stringify(receivedData));
|
|
nextStep(undefined);
|
|
}
|
|
}, pollInterval);
|
|
}
|
|
});
|
|
}
|
|
|
|
if(Espruino.Core.Serial.isConnected()){
|
|
Espruino.Core.Utils.getEspruinoPrompt(function() {
|
|
getProcessInfo(expressionToExecute, callback);
|
|
});
|
|
} else {
|
|
console.error("executeExpression called when not connected!");
|
|
callback(undefined);
|
|
}
|
|
};
|
|
|
|
function versionToFloat(version) {
|
|
return parseFloat(version.trim().replace("v","."));
|
|
};
|
|
|
|
/// Gets a URL, and returns callback(data) or callback(undefined) on error
|
|
function getURL(url, callback) {
|
|
Espruino.callProcessor("getURL", { url : url, data : undefined }, function(result) {
|
|
if (result.data!==undefined) {
|
|
callback(result.data);
|
|
} else {
|
|
var resultUrl = result.url ? result.url : url;
|
|
if (typeof process === 'undefined') {
|
|
// Web browser
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.responseType = "text";
|
|
xhr.addEventListener("load", function () {
|
|
if (xhr.status === 200) {
|
|
callback(xhr.response.toString());
|
|
} else {
|
|
console.error("getURL("+JSON.stringify(url)+") error : HTTP "+xhr.status);
|
|
callback(undefined);
|
|
}
|
|
});
|
|
xhr.addEventListener("error", function (e) {
|
|
console.error("getURL("+JSON.stringify(url)+") error "+e);
|
|
callback(undefined);
|
|
});
|
|
xhr.open("GET", url, true);
|
|
xhr.send(null);
|
|
} else {
|
|
// Node.js
|
|
if (resultUrl.substr(0,4)=="http") {
|
|
var m = resultUrl[4]=="s"?"https":"http";
|
|
|
|
var http_options = Espruino.Config.MODULE_PROXY_ENABLED ? {
|
|
host: Espruino.Config.MODULE_PROXY_URL,
|
|
port: Espruino.Config.MODULE_PROXY_PORT,
|
|
path: resultUrl,
|
|
} : resultUrl;
|
|
|
|
require(m).get(http_options, function(res) {
|
|
if (res.statusCode != 200) {
|
|
console.log("Espruino.Core.Utils.getURL: got HTTP status code "+res.statusCode+" for "+url);
|
|
return callback(undefined);
|
|
}
|
|
var data = "";
|
|
res.on("data", function(d) { data += d; });
|
|
res.on("end", function() {
|
|
callback(data);
|
|
});
|
|
}).on('error', function(err) {
|
|
console.error("getURL("+JSON.stringify(url)+") error : "+err);
|
|
callback(undefined);
|
|
});
|
|
} else {
|
|
require("fs").readFile(resultUrl, function(err, d) {
|
|
if (err) {
|
|
console.error(err);
|
|
callback(undefined);
|
|
} else
|
|
callback(d.toString());
|
|
});
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
/// Gets a URL as a Binary file, returning callback(err, ArrayBuffer)
|
|
var getBinaryURL = function(url, callback) {
|
|
console.log("Downloading "+url);
|
|
Espruino.Core.Status.setStatus("Downloading binary...");
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.responseType = "arraybuffer";
|
|
xhr.addEventListener("load", function () {
|
|
if (xhr.status === 200) {
|
|
Espruino.Core.Status.setStatus("Done.");
|
|
var data = xhr.response;
|
|
callback(undefined,data);
|
|
} else
|
|
callback("Error downloading file - HTTP "+xhr.status);
|
|
});
|
|
xhr.addEventListener("error", function () {
|
|
callback("Error downloading file");
|
|
});
|
|
xhr.open("GET", url, true);
|
|
xhr.send(null);
|
|
};
|
|
|
|
/// Gets a URL as JSON, and returns callback(data) or callback(undefined) on error
|
|
function getJSONURL(url, callback) {
|
|
getURL(url, function(d) {
|
|
if (!d) return callback(d);
|
|
var j;
|
|
try { j=JSON.parse(d); } catch (e) { console.error("Unable to parse JSON",d); }
|
|
callback(j);
|
|
});
|
|
}
|
|
|
|
function isURL(text) {
|
|
return (new RegExp( '(http|https)://' )).test(text);
|
|
}
|
|
|
|
/* Are we served from a secure location so we're
|
|
forced to use a secure get? */
|
|
function needsHTTPS() {
|
|
if (typeof window==="undefined" || !window.location) return false;
|
|
return window.location.protocol=="https:";
|
|
}
|
|
|
|
/* Open a file load dialog.
|
|
options = {
|
|
id : ID is to ensure that subsequent calls with the same ID remember the last used directory.
|
|
type :
|
|
type=="text" => (default) Callback is called with a string
|
|
type=="arraybuffer" => Callback is called with an arraybuffer
|
|
mimeType : (optional) comma-separated list of accepted mime types for files or extensions (eg. ".js,application/javascript")
|
|
|
|
callback(contents, mimeType, fileName)
|
|
*/
|
|
function fileOpenDialog(options, callback) {
|
|
options = options||{};
|
|
options.type = options.type||"text";
|
|
options.id = options.id||"default";
|
|
var loaderId = options.id+"FileLoader";
|
|
var fileLoader = document.getElementById(loaderId);
|
|
if (!fileLoader) {
|
|
fileLoader = document.createElement("input");
|
|
fileLoader.setAttribute("id", loaderId);
|
|
fileLoader.setAttribute("type", "file");
|
|
fileLoader.setAttribute("style", "z-index:-2000;position:absolute;top:0px;left:0px;");
|
|
if (options.mimeType)
|
|
fileLoader.setAttribute("accept",options.mimeType);
|
|
fileLoader.addEventListener('click', function(e) {
|
|
e.target.value = ''; // handle repeated upload of the same file
|
|
});
|
|
fileLoader.addEventListener('change', function(e) {
|
|
if (!fileLoader.callback) return;
|
|
var files = e.target.files;
|
|
var file = files[0];
|
|
var reader = new FileReader();
|
|
reader.onload = function(e) {
|
|
/* Doing reader.readAsText(file) interprets the file as UTF8
|
|
which we don't want. */
|
|
var result;
|
|
if (options.type=="text") {
|
|
var a = new Uint8Array(e.target.result);
|
|
result = "";
|
|
for (var i=0;i<a.length;i++)
|
|
result += String.fromCharCode(a[i]);
|
|
} else
|
|
result = e.target.result;
|
|
fileLoader.callback(result, file.type, file.name);
|
|
fileLoader.callback = undefined;
|
|
};
|
|
if (options.type=="text" || options.type=="arraybuffer") reader.readAsArrayBuffer(file);
|
|
else throw new Error("fileOpenDialog: unknown type "+options.type);
|
|
}, false);
|
|
document.body.appendChild(fileLoader);
|
|
}
|
|
fileLoader.callback = callback;
|
|
fileLoader.click();
|
|
}
|
|
|
|
// Save a file with a save file dialog
|
|
function fileSaveDialog(data, filename) {
|
|
function errorHandler() {
|
|
Espruino.Core.Notifications.error("Error Saving", true);
|
|
}
|
|
|
|
if (chrome.fileSystem) {
|
|
// Chrome Web App / NW.js
|
|
chrome.fileSystem.chooseEntry({type: 'saveFile', suggestedName:filename}, function(writableFileEntry) {
|
|
if (!writableFileEntry) return; // cancelled
|
|
writableFileEntry.createWriter(function(writer) {
|
|
var blob = new Blob([data],{ type: "text/plain"} );
|
|
writer.onerror = errorHandler;
|
|
// when truncation has finished, write
|
|
writer.onwriteend = function(e) {
|
|
writer.onwriteend = function(e) {
|
|
console.log('FileWriter: complete');
|
|
};
|
|
console.log('FileWriter: writing');
|
|
writer.write(blob);
|
|
};
|
|
// truncate
|
|
console.log('FileWriter: truncating');
|
|
writer.truncate(blob.size);
|
|
}, errorHandler);
|
|
});
|
|
} else {
|
|
var rawdata = new Uint8Array(data.length);
|
|
for (var i=0;i<data.length;i++) rawdata[i]=data.charCodeAt(i);
|
|
var a = document.createElement("a"),
|
|
file = new Blob([rawdata.buffer], {type: "text/plain"});
|
|
var url = URL.createObjectURL(file);
|
|
a.href = url;
|
|
a.download = filename;
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
setTimeout(function() {
|
|
document.body.removeChild(a);
|
|
window.URL.revokeObjectURL(url);
|
|
}, 0);
|
|
}
|
|
};
|
|
|
|
/** Bluetooth device names that we KNOW run Espruino */
|
|
function recognisedBluetoothDevices() {
|
|
return [
|
|
"Puck.js", "Pixl.js", "MDBT42Q", "Espruino", "Badge", "Thingy", "RuuviTag", "iTracker", "Smartibot", "Bangle.js",
|
|
];
|
|
}
|
|
|
|
/** If we can't find service info, add devices
|
|
based only on their name */
|
|
function isRecognisedBluetoothDevice(name) {
|
|
if (!name) return false;
|
|
var devs = recognisedBluetoothDevices();
|
|
for (var i=0;i<devs.length;i++)
|
|
if (name.substr(0, devs[i].length) == devs[i])
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
|
|
function getVersion(callback) {
|
|
var xmlhttp = new XMLHttpRequest();
|
|
var path = (window.location.pathname.indexOf("relay")>=0)?"../":"";
|
|
xmlhttp.open('GET', path+'manifest.json');
|
|
xmlhttp.onload = function (e) {
|
|
var manifest = JSON.parse(xmlhttp.responseText);
|
|
callback(manifest.version);
|
|
};
|
|
xmlhttp.send(null);
|
|
}
|
|
|
|
function getVersionInfo(callback) {
|
|
getVersion(function(version) {
|
|
var platform = "Web App";
|
|
if (isNWApp())
|
|
platform = "NW.js Native App";
|
|
if (isChromeWebApp())
|
|
platform = "Chrome App";
|
|
|
|
callback(platform+", v"+version);
|
|
});
|
|
}
|
|
|
|
// Converts a string to an ArrayBuffer
|
|
function stringToArrayBuffer(str) {
|
|
var buf=new Uint8Array(str.length);
|
|
for (var i=0; i<str.length; i++) {
|
|
var ch = str.charCodeAt(i);
|
|
if (ch>=256) {
|
|
console.warn("stringToArrayBuffer got non-8 bit character - code "+ch);
|
|
ch = "?".charCodeAt(0);
|
|
}
|
|
buf[i] = ch;
|
|
}
|
|
return buf.buffer;
|
|
};
|
|
|
|
// Converts a string to a Buffer
|
|
function stringToBuffer(str) {
|
|
var buf = Buffer.alloc(str.length);
|
|
for (var i = 0; i < buf.length; i++) {
|
|
buf.writeUInt8(str.charCodeAt(i), i);
|
|
}
|
|
return buf;
|
|
};
|
|
|
|
// Converts a DataView to an ArrayBuffer
|
|
function dataViewToArrayBuffer(str) {
|
|
var bufView = new Uint8Array(dv.byteLength);
|
|
for (var i = 0; i < bufView.length; i++) {
|
|
bufView[i] = dv.getUint8(i);
|
|
}
|
|
return bufView.buffer;
|
|
};
|
|
|
|
// Converts an ArrayBuffer to a string
|
|
function arrayBufferToString(str) {
|
|
return String.fromCharCode.apply(null, new Uint8Array(buf));
|
|
};
|
|
|
|
/* Parses a JSON string into JS, taking into account some of the issues
|
|
with Espruino's JSON from 2v04 and before */
|
|
function parseJSONish(str) {
|
|
var lex = getLexer(str);
|
|
var tok = lex.next();
|
|
var final = "";
|
|
while (tok!==undefined) {
|
|
var s = tok.str;
|
|
if (tok.type=="STRING") {
|
|
s = s.replace(/\\([0-9])/g,"\\u000$1");
|
|
s = s.replace(/\\x(..)/g,"\\u00$1");
|
|
}
|
|
final += s;
|
|
tok = lex.next();
|
|
}
|
|
return JSON.parse(final);
|
|
};
|
|
|
|
// Does the given string contain only ASCII characters?
|
|
function isASCII(str) {
|
|
for (var i=0;i<str.length;i++) {
|
|
var c = str.charCodeAt(i);
|
|
if ((c<32 || c>126) &&
|
|
(c!=10) && (c!=13) && (c!=9)) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// btoa that works on utf8
|
|
function btoa(input) {
|
|
var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
var out = "";
|
|
var i=0;
|
|
while (i<input.length) {
|
|
var octet_a = 0|input.charCodeAt(i++);
|
|
var octet_b = 0;
|
|
var octet_c = 0;
|
|
var padding = 0;
|
|
if (i<input.length) {
|
|
octet_b = 0|input.charCodeAt(i++);
|
|
if (i<input.length) {
|
|
octet_c = 0|input.charCodeAt(i++);
|
|
padding = 0;
|
|
} else
|
|
padding = 1;
|
|
} else
|
|
padding = 2;
|
|
var triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
|
|
out += b64[(triple >> 18) & 63] +
|
|
b64[(triple >> 12) & 63] +
|
|
((padding>1)?'=':b64[(triple >> 6) & 63]) +
|
|
((padding>0)?'=':b64[triple & 63]);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
Espruino.Core.Utils = {
|
|
init : init,
|
|
isWindows : isWindows,
|
|
isAppleDevice : isAppleDevice,
|
|
getChromeVersion : getChromeVersion,
|
|
isNWApp : isNWApp,
|
|
isChromeWebApp : isChromeWebApp,
|
|
isProgressiveWebApp : isProgressiveWebApp,
|
|
hasNativeTitleBar : hasNativeTitleBar,
|
|
escapeHTML : escapeHTML,
|
|
fixBrokenCode : fixBrokenCode,
|
|
getSubString : getSubString,
|
|
getLexer : getLexer,
|
|
countBrackets : countBrackets,
|
|
getEspruinoPrompt : getEspruinoPrompt,
|
|
executeExpression : function(expr,callback) { executeExpression(expr,callback,false); },
|
|
executeStatement : function(statement,callback) { executeExpression(statement,callback,true); },
|
|
versionToFloat : versionToFloat,
|
|
getURL : getURL,
|
|
getBinaryURL : getBinaryURL,
|
|
getJSONURL : getJSONURL,
|
|
isURL : isURL,
|
|
needsHTTPS : needsHTTPS,
|
|
fileOpenDialog : fileOpenDialog,
|
|
fileSaveDialog : fileSaveDialog,
|
|
recognisedBluetoothDevices : recognisedBluetoothDevices,
|
|
isRecognisedBluetoothDevice : isRecognisedBluetoothDevice,
|
|
getVersion : getVersion,
|
|
getVersionInfo : getVersionInfo,
|
|
stringToArrayBuffer : stringToArrayBuffer,
|
|
stringToBuffer : stringToBuffer,
|
|
dataViewToArrayBuffer : dataViewToArrayBuffer,
|
|
arrayBufferToString : arrayBufferToString,
|
|
parseJSONish : parseJSONish,
|
|
isASCII : isASCII,
|
|
btoa : btoa
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Central place to store and retrieve Options
|
|
|
|
To use this, on your plugin's `init` function, do something like the
|
|
following:
|
|
|
|
Espruino.Core.Config.add("MAX_FOOBARS", {
|
|
section : "Communications", // Heading this will come under in the config screen
|
|
name : "Foobars", // Nice name
|
|
description : "How many foobars?", // More detail about this
|
|
type : "int"/"boolean"/"string"/{ value1:niceName, value2:niceName },
|
|
defaultValue : 20,
|
|
onChange : function(newValue) { ... }
|
|
});
|
|
|
|
* onChange will be called whenever the value changes from the default
|
|
(including when it is loaded)
|
|
|
|
Then use:
|
|
|
|
Espruino.Config.MAX_FOOBARS in your code
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function() {
|
|
|
|
/** See addSection and getSections */
|
|
var builtinSections = {};
|
|
|
|
function _get(callback) {
|
|
if (typeof chrome !== 'undefined' && chrome.storage) {
|
|
chrome.storage.sync.get( "CONFIGS", function (data) {
|
|
var value = data["CONFIGS"];
|
|
console.log("GET chrome.storage.sync = "+JSON.stringify(value));
|
|
callback(value);
|
|
});
|
|
} else if (typeof window !== 'undefined' && window.localStorage) {
|
|
var data = {};
|
|
var value = window.localStorage.getItem("CONFIG");
|
|
console.log("GET window.localStorage = "+JSON.stringify(value));
|
|
try {
|
|
data = JSON.parse(value);
|
|
} catch (e) {
|
|
console.log("Invalid config data");
|
|
}
|
|
callback(data);
|
|
} else if (typeof document != "undefined") {
|
|
var data = {};
|
|
var cookie = document.cookie;
|
|
if (cookie!==undefined && cookie.indexOf("CONFIG=")>=0) {
|
|
cookie = cookie.substring(cookie.indexOf("CONFIG=")+7);
|
|
cookie = cookie.substring(0,cookie.indexOf(";"));
|
|
try {
|
|
var json = atob(cookie);
|
|
data = JSON.parse(json);
|
|
} catch (e) {
|
|
console.log("Got ", e, " while reading info");
|
|
}
|
|
}
|
|
callback(data);
|
|
} else {
|
|
callback({});
|
|
}
|
|
}
|
|
|
|
function _set(data) {
|
|
if (typeof chrome !== 'undefined' && chrome.storage) {
|
|
console.log("SET chrome.storage.sync = "+JSON.stringify(data,null,2));
|
|
chrome.storage.sync.set({ CONFIGS : data });
|
|
} else if (typeof window !== 'undefined' && window.localStorage) {
|
|
console.log("SET window.localStorage = "+JSON.stringify(data,null,2));
|
|
window.localStorage.setItem("CONFIG",JSON.stringify(data));
|
|
} else if (typeof document != "undefined") {
|
|
document.cookie = "CONFIG="+btoa(JSON.stringify(data));
|
|
}
|
|
}
|
|
|
|
function loadConfiguration(callback) {
|
|
_get(function (value) {
|
|
for (var key in value) {
|
|
if (key=="set") continue;
|
|
Espruino.Config[key] = value[key];
|
|
if (Espruino.Core.Config.data[key] !== undefined &&
|
|
Espruino.Core.Config.data[key].onChange !== undefined)
|
|
Espruino.Core.Config.data[key].onChange(value[key]);
|
|
}
|
|
if (callback!==undefined)
|
|
callback();
|
|
});
|
|
}
|
|
|
|
function init() {
|
|
addSection("General", { sortOrder:100, description: "General Web IDE Settings" });
|
|
addSection("Communications", { sortOrder:200, description: "Settings for communicating with the Espruino Board" });
|
|
addSection("Board", { sortOrder:300, description: "Settings for the Espruino Board itself" });
|
|
}
|
|
|
|
function add(name, options) {
|
|
Espruino.Core.Config.data[name] = options;
|
|
if (Espruino.Config[name] === undefined)
|
|
Espruino.Config[name] = options.defaultValue;
|
|
}
|
|
|
|
/** Add a section (or information on the page).
|
|
* options = {
|
|
* sortOrder : int, // a number used for sorting
|
|
* description : "",
|
|
* getHTML : function(callback(html)) // optional
|
|
* };
|
|
*/
|
|
function addSection(name, options) {
|
|
options.name = name;
|
|
builtinSections[name] = options;
|
|
}
|
|
|
|
/** Get an object containing the information on a section used in configs */
|
|
function getSection(name) {
|
|
if (builtinSections[name]!==undefined)
|
|
return builtinSections[name];
|
|
// not found - but we warned about this in getSections
|
|
return {
|
|
name : name
|
|
};
|
|
}
|
|
|
|
/** Get an object containing information on all 'sections' used in all the configs */
|
|
function getSections() {
|
|
var sections = [];
|
|
// add sections we know about
|
|
for (var name in builtinSections)
|
|
sections.push(builtinSections[name]);
|
|
// add other sections
|
|
for (var i in Espruino.Core.Config.data) {
|
|
var c = Espruino.Core.Config.data[i];
|
|
|
|
var found = false;
|
|
for (var s in sections)
|
|
if (sections[s].name == c.section)
|
|
found = true;
|
|
|
|
if (!found) {
|
|
console.warn("Section named "+c.section+" was not added with Config.addSection");
|
|
sections[c.section] = {
|
|
name : c.section,
|
|
sortOrder : 0
|
|
};
|
|
}
|
|
}
|
|
// Now sort by sortOrder
|
|
sections.sort(function (a,b) { return a.sortOrder - b.sortOrder; });
|
|
|
|
return sections;
|
|
}
|
|
|
|
Espruino.Config = {};
|
|
Espruino.Config.set = function (key, value) {
|
|
if (Espruino.Config[key] != value) {
|
|
Espruino.Config[key] = value;
|
|
// Do the callback
|
|
if (Espruino.Core.Config.data[key] !== undefined &&
|
|
Espruino.Core.Config.data[key].onChange !== undefined)
|
|
Espruino.Core.Config.data[key].onChange(value);
|
|
// Save to synchronized storage...
|
|
var data = {};
|
|
for (var key in Espruino.Config)
|
|
if (key != "set")
|
|
data[key] = Espruino.Config[key];
|
|
_set(data);
|
|
}
|
|
};
|
|
|
|
function clearAll() { // clear all settings
|
|
_set({});
|
|
for (var name in Espruino.Core.Config.data) {
|
|
var options = Espruino.Core.Config.data[name];
|
|
Espruino.Config[name] = options.defaultValue;
|
|
}
|
|
}
|
|
|
|
Espruino.Core.Config = {
|
|
loadConfiguration : loadConfiguration, // special - called before init
|
|
|
|
init : init,
|
|
add : add,
|
|
data : {},
|
|
|
|
|
|
addSection : addSection,
|
|
getSection : getSection,
|
|
getSections : getSections,
|
|
|
|
clearAll : clearAll, // clear all settings
|
|
};
|
|
|
|
})();
|
|
/*
|
|
Gordon Williams (gw@pur3.co.uk)
|
|
|
|
Common entrypoint for all communications from the IDE. This handles
|
|
all serial_*.js connection types and passes calls to the correct one.
|
|
|
|
To add a new serial device, you must add an object to
|
|
Espruino.Core.Serial.devices:
|
|
|
|
Espruino.Core.Serial.devices.push({
|
|
"name" : "Test", // Name, when initialising
|
|
"init" : function() // Gets called at startup
|
|
"getPorts": function(callback) // calls 'callback' with an array of ports:
|
|
callback([{path:"TEST", // path passed to 'open' (and displayed to user)
|
|
description:"test", // description displayed to user
|
|
type:"test", // bluetooth|usb|socket - used to show icon in UI
|
|
// autoconnect : true // automatically conect to this (without the connect menu)
|
|
}], true); // instantPorts - will getPorts return all the ports on the first call, or does it need multiple calls (eg. Bluetooth)
|
|
"open": function(path, openCallback, receiveCallback, disconnectCallback),
|
|
"write": function(dataAsString, callbackWhenWritten)
|
|
"close": function(),
|
|
"maxWriteLength": 20, // optional - the maximum amount of characters that should be given to 'write' at a time
|
|
});
|
|
|
|
*/
|
|
(function() {
|
|
|
|
// List of ports and the devices they map to
|
|
var portToDevice = undefined;
|
|
// The current connected device (from Espruino.Core.Serial.devices)
|
|
var currentDevice = undefined;
|
|
|
|
// called when data received
|
|
var readListener = undefined;
|
|
|
|
// are we sending binary data? If so, don't automatically insert breaks for stuff like Ctrl-C
|
|
var sendingBinary = false;
|
|
// For throttled write
|
|
var slowWrite = true;
|
|
var writeData = [];
|
|
var writeTimeout = undefined;
|
|
/// flow control XOFF received - we shouldn't send anything
|
|
var flowControlXOFF = false;
|
|
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("BAUD_RATE", {
|
|
section : "Communications",
|
|
name : "Baud Rate",
|
|
description : "When connecting over serial, this is the baud rate that is used. 9600 is the default for Espruino",
|
|
type : {9600:9600,14400:14400,19200:19200,28800:28800,38400:38400,57600:57600,115200:115200},
|
|
defaultValue : 9600,
|
|
});
|
|
Espruino.Core.Config.add("SERIAL_IGNORE", {
|
|
section : "Communications",
|
|
name : "Ignore Serial Ports",
|
|
description : "A '|' separated list of serial port paths to ignore, eg `/dev/ttyS*|/dev/*.SOC`",
|
|
type : "string",
|
|
defaultValue : "/dev/ttyS*|/dev/*.SOC|/dev/*.MALS"
|
|
});
|
|
Espruino.Core.Config.add("SERIAL_FLOW_CONTROL", {
|
|
section : "Communications",
|
|
name : "Software Flow Control",
|
|
description : "Respond to XON/XOFF flow control characters to throttle data uploads. By default Espruino sends XON/XOFF for USB and Bluetooth (on 2v05+).",
|
|
type : "boolean",
|
|
defaultValue : true
|
|
});
|
|
|
|
var devices = Espruino.Core.Serial.devices;
|
|
for (var i=0;i<devices.length;i++) {
|
|
console.log(" - Initialising Serial "+devices[i].name);
|
|
if (devices[i].init)
|
|
devices[i].init();
|
|
}
|
|
}
|
|
|
|
var startListening=function(callback) {
|
|
var oldListener = readListener;
|
|
readListener = callback;
|
|
return oldListener;
|
|
};
|
|
|
|
/* Calls 'callback(port_list, shouldCallAgain)'
|
|
'shouldCallAgain==true' means that more devices
|
|
may appear later on (eg Bluetooth LE).*/
|
|
var getPorts=function(callback) {
|
|
var ports = [];
|
|
var newPortToDevice = [];
|
|
// get all devices
|
|
var responses = 0;
|
|
var devices = Espruino.Core.Serial.devices;
|
|
if (!devices || devices.length==0) {
|
|
portToDevice = newPortToDevice;
|
|
return callback(ports, false);
|
|
}
|
|
var shouldCallAgain = false;
|
|
devices.forEach(function (device) {
|
|
//console.log("getPorts -->",device.name);
|
|
device.getPorts(function(devicePorts, instantPorts) {
|
|
//console.log("getPorts <--",device.name);
|
|
if (instantPorts===false) shouldCallAgain = true;
|
|
if (devicePorts) {
|
|
devicePorts.forEach(function(port) {
|
|
var ignored = false;
|
|
if (Espruino.Config.SERIAL_IGNORE)
|
|
Espruino.Config.SERIAL_IGNORE.split("|").forEach(function(wildcard) {
|
|
var regexp = "^"+wildcard.replace(/\./g,"\\.").replace(/\*/g,".*")+"$";
|
|
if (port.path.match(new RegExp(regexp)))
|
|
ignored = true;
|
|
});
|
|
|
|
if (!ignored) {
|
|
if (port.usb && port.usb[0]==0x0483 && port.usb[1]==0x5740)
|
|
port.description = "Espruino board";
|
|
ports.push(port);
|
|
newPortToDevice[port.path] = device;
|
|
}
|
|
});
|
|
}
|
|
responses++;
|
|
if (responses == devices.length) {
|
|
portToDevice = newPortToDevice;
|
|
ports.sort(function(a,b) {
|
|
if (a.unimportant && !b.unimportant) return 1;
|
|
if (b.unimportant && !a.unimportant) return -1;
|
|
return 0;
|
|
});
|
|
callback(ports, shouldCallAgain);
|
|
}
|
|
});
|
|
});
|
|
};
|
|
|
|
var openSerial=function(serialPort, connectCallback, disconnectCallback) {
|
|
return openSerialInternal(serialPort, connectCallback, disconnectCallback, 2);
|
|
}
|
|
|
|
var openSerialInternal=function(serialPort, connectCallback, disconnectCallback, attempts) {
|
|
/* If openSerial is called, we need to have called getPorts first
|
|
in order to figure out which one of the serial_ implementations
|
|
we must call into. */
|
|
if (portToDevice === undefined) {
|
|
portToDevice = []; // stop recursive calls if something errors
|
|
return getPorts(function() {
|
|
openSerialInternal(serialPort, connectCallback, disconnectCallback, attempts);
|
|
});
|
|
}
|
|
|
|
if (!(serialPort in portToDevice)) {
|
|
if (serialPort.toLowerCase() in portToDevice) {
|
|
serialPort = serialPort.toLowerCase();
|
|
} else {
|
|
if (attempts>0) {
|
|
console.log("Port "+JSON.stringify(serialPort)+" not found - checking ports again ("+attempts+" attempts left)");
|
|
return getPorts(function() {
|
|
openSerialInternal(serialPort, connectCallback, disconnectCallback, attempts-1);
|
|
});
|
|
} else {
|
|
console.error("Port "+JSON.stringify(serialPort)+" not found");
|
|
return connectCallback(undefined);
|
|
}
|
|
}
|
|
}
|
|
|
|
var portInfo = { port:serialPort };
|
|
connectionInfo = undefined;
|
|
flowControlXOFF = false;
|
|
currentDevice = portToDevice[serialPort];
|
|
currentDevice.open(serialPort, function(cInfo) { // CONNECT
|
|
if (!cInfo) {
|
|
// Espruino.Core.Notifications.error("Unable to connect");
|
|
console.error("Unable to open device (connectionInfo="+cInfo+")");
|
|
connectCallback(undefined);
|
|
} else {
|
|
connectionInfo = cInfo;
|
|
connectedPort = serialPort;
|
|
console.log("Connected", cInfo);
|
|
if (connectionInfo.portName)
|
|
portInfo.portName = connectionInfo.portName;
|
|
Espruino.callProcessor("connected", portInfo, function() {
|
|
connectCallback(cInfo);
|
|
});
|
|
}
|
|
}, function(data) { // RECEIEVE DATA
|
|
if (!(data instanceof ArrayBuffer)) console.warn("Serial port implementation is not returning ArrayBuffers");
|
|
if (Espruino.Config.SERIAL_FLOW_CONTROL) {
|
|
var u = new Uint8Array(data);
|
|
for (var i=0;i<u.length;i++) {
|
|
if (u[i]==17) { // XON
|
|
console.log("XON received => resume upload");
|
|
flowControlXOFF = false;
|
|
}
|
|
if (u[i]==19) { // XOFF
|
|
console.log("XOFF received => pause upload");
|
|
flowControlXOFF = true;
|
|
}
|
|
}
|
|
}
|
|
if (readListener) readListener(data);
|
|
}, function() { // DISCONNECT
|
|
currentDevice = undefined;
|
|
if (!connectionInfo) {
|
|
// we got a disconnect when we hadn't connected...
|
|
// Just call connectCallback(undefined), don't bother sending disconnect
|
|
connectCallback(undefined);
|
|
return;
|
|
}
|
|
connectionInfo = undefined;
|
|
if (writeTimeout!==undefined)
|
|
clearTimeout(writeTimeout);
|
|
writeTimeout = undefined;
|
|
writeData = [];
|
|
sendingBinary = false;
|
|
flowControlXOFF = false;
|
|
|
|
Espruino.callProcessor("disconnected", portInfo, function() {
|
|
disconnectCallback(portInfo);
|
|
});
|
|
});
|
|
};
|
|
|
|
var str2ab=function(str) {
|
|
var buf=new ArrayBuffer(str.length);
|
|
var bufView=new Uint8Array(buf);
|
|
for (var i=0; i<str.length; i++) {
|
|
var ch = str.charCodeAt(i);
|
|
if (ch>=256) {
|
|
console.warn("Attempted to send non-8 bit character - code "+ch);
|
|
ch = "?".charCodeAt(0);
|
|
}
|
|
bufView[i] = ch;
|
|
}
|
|
return buf;
|
|
};
|
|
|
|
var closeSerial=function() {
|
|
if (currentDevice) {
|
|
currentDevice.close();
|
|
currentDevice = undefined;
|
|
} else
|
|
console.error("Close called, but serial port not open");
|
|
};
|
|
|
|
var isConnected = function() {
|
|
return currentDevice!==undefined;
|
|
};
|
|
|
|
var writeSerialWorker = function(isStarting) {
|
|
writeTimeout = undefined; // we've been called
|
|
// check flow control
|
|
if (flowControlXOFF) {
|
|
/* flow control was enabled - bit hacky (we could use a callback)
|
|
but safe - just check again in a bit to see if we should send */
|
|
writeTimeout = setTimeout(function() {
|
|
writeSerialWorker();
|
|
}, 50);
|
|
return;
|
|
}
|
|
|
|
// if we disconnected while sending, empty queue
|
|
if (currentDevice === undefined) {
|
|
if (writeData[0].callback)
|
|
writeData[0].callback();
|
|
writeData.shift();
|
|
if (writeData.length) setTimeout(function() {
|
|
writeSerialWorker(false);
|
|
}, 1);
|
|
return;
|
|
}
|
|
|
|
if (writeData[0].data === "") {
|
|
if (writeData[0].showStatus)
|
|
Espruino.Core.Status.setStatus("Sent");
|
|
if (writeData[0].callback)
|
|
writeData[0].callback();
|
|
writeData.shift(); // remove this empty first element
|
|
if (!writeData.length) return; // anything left to do?
|
|
isStarting = true;
|
|
}
|
|
|
|
if (isStarting) {
|
|
var blockSize = 512;
|
|
if (currentDevice.maxWriteLength)
|
|
blockSize = currentDevice.maxWriteLength;
|
|
/* if we're throttling our writes we want to send small
|
|
* blocks of data at once. We still limit the size of
|
|
* sent blocks to 512 because on Mac we seem to lose
|
|
* data otherwise (not on any other platforms!) */
|
|
if (slowWrite) blockSize=19;
|
|
writeData[0].blockSize = blockSize;
|
|
|
|
writeData[0].showStatus &= writeData[0].data.length>writeData[0].blockSize;
|
|
if (writeData[0].showStatus) {
|
|
Espruino.Core.Status.setStatus("Sending...", writeData[0].data.length);
|
|
console.log("---> "+JSON.stringify(writeData[0].data));
|
|
}
|
|
}
|
|
|
|
// Initial split use previous, or don't
|
|
var d = undefined;
|
|
var split = writeData[0].nextSplit || { start:0, end:writeData[0].data.length, delay:0 };
|
|
// if we get something like Ctrl-C or `reset`, wait a bit for it to complete
|
|
if (!sendingBinary) {
|
|
function findSplitIdx(prev, substr, delay, reason) {
|
|
var match = writeData[0].data.match(substr);
|
|
// not found
|
|
if (match===null) return prev;
|
|
// or previous find was earlier in str
|
|
var end = match.index + match[0].length;
|
|
if (end > prev.end) return prev;
|
|
// found, and earlier
|
|
prev.start = match.index;
|
|
prev.end = end;
|
|
prev.delay = delay;
|
|
prev.match = match[0];
|
|
prev.reason = reason;
|
|
return prev;
|
|
}
|
|
split = findSplitIdx(split, /\x03/, 250, "Ctrl-C"); // Ctrl-C
|
|
split = findSplitIdx(split, /reset\(\);\n/, 250, "reset()"); // Reset
|
|
split = findSplitIdx(split, /load\(\);\n/, 250, "load()"); // Load
|
|
split = findSplitIdx(split, /Modules.addCached\("[^\n]*"\);\n/, 250, "Modules.addCached"); // Adding a module
|
|
split = findSplitIdx(split, /\x10require\("Storage"\).write\([^\n]*\);\n/, 500, "Storage.write"); // Write chunk of data
|
|
}
|
|
// Otherwise split based on block size
|
|
if (!split.match || split.end >= writeData[0].blockSize) {
|
|
if (split.match) writeData[0].nextSplit = split;
|
|
split = { start:0, end:writeData[0].blockSize, delay:0 };
|
|
}
|
|
if (split.match) console.log("Splitting for "+split.reason+", delay "+split.delay);
|
|
// Only send some of the data
|
|
if (writeData[0].data.length>split.end) {
|
|
if (slowWrite && split.delay==0) split.delay=50;
|
|
d = writeData[0].data.substr(0,split.end);
|
|
writeData[0].data = writeData[0].data.substr(split.end);
|
|
if (writeData[0].nextSplit) {
|
|
writeData[0].nextSplit.start -= split.end;
|
|
writeData[0].nextSplit.end -= split.end;
|
|
if (writeData[0].nextSplit.end<=0)
|
|
writeData[0].nextSplit = undefined;
|
|
}
|
|
} else {
|
|
d = writeData[0].data;
|
|
writeData[0].data = "";
|
|
writeData[0].nextSplit = undefined;
|
|
}
|
|
// update status
|
|
if (writeData[0].showStatus)
|
|
Espruino.Core.Status.incrementProgress(d.length);
|
|
// actually write data
|
|
//console.log("Sending block "+JSON.stringify(d)+", wait "+split.delay+"ms");
|
|
currentDevice.write(d, function() {
|
|
// Once written, start timeout
|
|
writeTimeout = setTimeout(function() {
|
|
writeSerialWorker();
|
|
}, split.delay);
|
|
});
|
|
}
|
|
|
|
// Throttled serial write
|
|
var writeSerial = function(data, showStatus, callback) {
|
|
if (showStatus===undefined) showStatus=true;
|
|
|
|
/* Queue our data to write. If there was previous data and no callback to
|
|
invoke on this data or the previous then just append data. This would happen
|
|
if typing in the terminal for example. */
|
|
if (!callback && writeData.length && !writeData[writeData.length-1].callback) {
|
|
writeData[writeData.length-1].data += data;
|
|
} else {
|
|
writeData.push({data:data,callback:callback,showStatus:showStatus});
|
|
/* if this is our first data, start sending now. Otherwise we're already
|
|
busy sending and will pull data off writeData when ready */
|
|
if (writeData.length==1)
|
|
writeSerialWorker(true);
|
|
}
|
|
};
|
|
|
|
|
|
// ----------------------------------------------------------
|
|
Espruino.Core.Serial = {
|
|
"devices" : [], // List of devices that can provide a serial API
|
|
"init" : init,
|
|
"getPorts": getPorts,
|
|
"open": openSerial,
|
|
"isConnected": isConnected,
|
|
"startListening": startListening,
|
|
"write": writeSerial,
|
|
"close": closeSerial,
|
|
"isSlowWrite": function() { return slowWrite; },
|
|
"setSlowWrite": function(isOn, force) {
|
|
if ((!force) && Espruino.Config.SERIAL_THROTTLE_SEND) {
|
|
console.log("ForceThrottle option is set - set Slow Write = true");
|
|
isOn = true;
|
|
} else
|
|
console.log("Set Slow Write = "+isOn);
|
|
slowWrite = isOn;
|
|
},
|
|
"setBinary": function(isOn) {
|
|
sendingBinary = isOn;
|
|
}
|
|
};
|
|
})();
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
The plugin that actually writes code out to Espruino
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("RESET_BEFORE_SEND", {
|
|
section : "Communications",
|
|
name : "Reset before Send",
|
|
description : "Reset Espruino before sending code from the editor pane?",
|
|
type : "boolean",
|
|
defaultValue : true
|
|
});
|
|
Espruino.Core.Config.add("STORE_LINE_NUMBERS", {
|
|
section : "Communications",
|
|
name : "Store line numbers",
|
|
description : "Should Espruino store line numbers for each function? This uses one extra variable per function, but allows you to get source code debugging in the Web IDE",
|
|
type : "boolean",
|
|
defaultValue : true
|
|
});
|
|
|
|
}
|
|
|
|
function writeToEspruino(code, callback) {
|
|
/* hack around non-K&R code formatting that would have
|
|
broken Espruino CLI's bracket counting */
|
|
code = reformatCode(code);
|
|
if (code === undefined) return; // it should already have errored
|
|
|
|
// We want to make sure we've got a prompt before sending. If not,
|
|
// this will issue a Ctrl+C
|
|
Espruino.Core.Utils.getEspruinoPrompt(function() {
|
|
// Make sure code ends in 2 newlines
|
|
while (code[code.length-2]!="\n" || code[code.length-1]!="\n")
|
|
code += "\n";
|
|
|
|
// If we're supposed to reset Espruino before sending...
|
|
if (Espruino.Config.RESET_BEFORE_SEND) {
|
|
code = "\x10reset();\n"+code;
|
|
}
|
|
|
|
//console.log("Sending... "+data);
|
|
Espruino.Core.Serial.write(code, true, function() {
|
|
// give 5 seconds for sending with save and 2 seconds without save
|
|
var count = Espruino.Config.SAVE_ON_SEND ? 50 : 20;
|
|
setTimeout(function cb() {
|
|
if (Espruino.Core.Terminal!==undefined &&
|
|
Espruino.Core.Terminal.getTerminalLine()!=">") {
|
|
count--;
|
|
if (count>0) {
|
|
setTimeout(cb, 100);
|
|
} else {
|
|
Espruino.Core.Notifications.error("Prompt not detected - upload failed. Trying to recover...");
|
|
Espruino.Core.Serial.write("\x03\x03echo(1)\n", false, callback);
|
|
}
|
|
} else {
|
|
if (callback) callback();
|
|
}
|
|
}, 100);
|
|
});
|
|
});
|
|
};
|
|
|
|
/// Parse and fix issues like `if (false)\n foo` in the root scope
|
|
function reformatCode(code) {
|
|
var APPLY_LINE_NUMBERS = false;
|
|
var lineNumberOffset = 0;
|
|
var ENV = Espruino.Core.Env.getData();
|
|
if (ENV && ENV.VERSION_MAJOR && ENV.VERSION_MINOR) {
|
|
if (ENV.VERSION_MAJOR>1 ||
|
|
ENV.VERSION_MINOR>=81.086) {
|
|
if (Espruino.Config.STORE_LINE_NUMBERS)
|
|
APPLY_LINE_NUMBERS = true;
|
|
}
|
|
}
|
|
// Turn cr/lf into just lf (eg. windows -> unix)
|
|
code = code.replace(/\r\n/g,"\n");
|
|
// First off, try and fix funky characters
|
|
for (var i=0;i<code.length;i++) {
|
|
var ch = code.charCodeAt(i);
|
|
if ((ch<32 || ch>255) && ch!=9/*Tab*/ && ch!=10/*LF*/ && ch!=13/*CR*/) {
|
|
console.warn("Funky character code "+ch+" at position "+i+". Replacing with ?");
|
|
code = code.substr(0,i)+"?"+code.substr(i+1);
|
|
}
|
|
}
|
|
|
|
/* Search for lines added to the start of the code by the module handler.
|
|
Ideally there would be a better way of doing this so line numbers stayed correct,
|
|
but this hack works for now. Fixes EspruinoWebIDE#140 */
|
|
if (APPLY_LINE_NUMBERS) {
|
|
var l = code.split("\n");
|
|
var i = 0;
|
|
while (l[i] && (l[i].substr(0,8)=="Modules." ||
|
|
l[i].substr(0,8)=="setTime(")) i++;
|
|
lineNumberOffset = -i;
|
|
}
|
|
|
|
var resultCode = "\x10"; // 0x10 = echo off for line
|
|
/** we're looking for:
|
|
* `a = \n b`
|
|
* `for (.....) \n X`
|
|
* `if (.....) \n X`
|
|
* `if (.....) { } \n else foo`
|
|
* `while (.....) \n X`
|
|
* `do \n X`
|
|
* `function (.....) \n X`
|
|
* `function N(.....) \n X`
|
|
* `var a \n , b` `var a = 0 \n, b`
|
|
* `var a, \n b` `var a = 0, \n b`
|
|
* `a \n . b`
|
|
* `foo() \n . b`
|
|
* `try { } \n catch \n () \n {}`
|
|
*
|
|
* These are divided into two groups - where there are brackets
|
|
* after the keyword (statementBeforeBrackets) and where there aren't
|
|
* (statement)
|
|
*
|
|
* We fix them by replacing \n with what you get when you press
|
|
* Alt+Enter (Ctrl + LF). This tells Espruino that it's a newline
|
|
* but NOT to execute.
|
|
*/
|
|
var lex = Espruino.Core.Utils.getLexer(code);
|
|
var brackets = 0;
|
|
var curlyBrackets = 0;
|
|
var statementBeforeBrackets = false;
|
|
var statement = false;
|
|
var varDeclaration = false;
|
|
var lastIdx = 0;
|
|
var lastTok = {str:""};
|
|
var tok = lex.next();
|
|
while (tok!==undefined) {
|
|
var previousString = code.substring(lastIdx, tok.startIdx);
|
|
var tokenString = code.substring(tok.startIdx, tok.endIdx);
|
|
//console.log("prev "+JSON.stringify(previousString)+" next "+tokenString);
|
|
|
|
/* Inserting Alt-Enter newline, which adds newline without trying
|
|
to execute */
|
|
if (brackets>0 || // we have brackets - sending the alt-enter special newline means Espruino doesn't have to do a search itself - faster.
|
|
statement || // statement was before brackets - expecting something else
|
|
statementBeforeBrackets || // we have an 'if'/etc
|
|
varDeclaration || // variable declaration then newline
|
|
tok.str=="," || // comma on newline - there was probably something before
|
|
tok.str=="." || // dot on newline - there was probably something before
|
|
tok.str=="+" || tok.str=="-" || // +/- on newline - there was probably something before
|
|
tok.str=="=" || // equals on newline - there was probably something before
|
|
tok.str=="else" || // else on newline
|
|
lastTok.str=="else" || // else befgore newline
|
|
tok.str=="catch" || // catch on newline - part of try..catch
|
|
lastTok.str=="catch"
|
|
) {
|
|
//console.log("Possible"+JSON.stringify(previousString));
|
|
previousString = previousString.replace(/\n/g, "\x1B\x0A");
|
|
}
|
|
|
|
var previousBrackets = brackets;
|
|
if (tok.str=="(" || tok.str=="{" || tok.str=="[") brackets++;
|
|
if (tok.str=="{") curlyBrackets++;
|
|
if (tok.str==")" || tok.str=="}" || tok.str=="]") brackets--;
|
|
if (tok.str=="}") curlyBrackets--;
|
|
|
|
if (brackets==0) {
|
|
if (tok.str=="for" || tok.str=="if" || tok.str=="while" || tok.str=="function" || tok.str=="throw") {
|
|
statementBeforeBrackets = true;
|
|
varDeclaration = false;
|
|
} else if (tok.str=="var") {
|
|
varDeclaration = true;
|
|
} else if (tok.type=="ID" && lastTok.str=="function") {
|
|
statementBeforeBrackets = true;
|
|
} else if (tok.str=="try" || tok.str=="catch") {
|
|
statementBeforeBrackets = true;
|
|
} else if (tok.str==")" && statementBeforeBrackets) {
|
|
statementBeforeBrackets = false;
|
|
statement = true;
|
|
} else if (["=","^","&&","||","+","+=","-","-=","*","*=","/","/=","%","%=","&","&=","|","|="].indexOf(tok.str)>=0) {
|
|
statement = true;
|
|
} else {
|
|
if (tok.str==";") varDeclaration = false;
|
|
statement = false;
|
|
statementBeforeBrackets = false;
|
|
}
|
|
}
|
|
/* If we're at root scope and had whitespace/comments between code,
|
|
remove it all and replace it with a single newline and a
|
|
0x10 (echo off for line) character. However DON'T do this if we had
|
|
an alt-enter in the line, as it was there to stop us executing
|
|
prematurely */
|
|
if (previousBrackets==0 &&
|
|
previousString.indexOf("\n")>=0 &&
|
|
previousString.indexOf("\x1B\x0A")<0) {
|
|
previousString = "\n\x10";
|
|
// Apply line numbers to each new line sent, to aid debugger
|
|
if (APPLY_LINE_NUMBERS && tok.lineNumber && (tok.lineNumber+lineNumberOffset)>0) {
|
|
// Esc [ 1234 d
|
|
// This is the 'set line number' command that we're abusing :)
|
|
previousString += "\x1B\x5B"+(tok.lineNumber+lineNumberOffset)+"d";
|
|
}
|
|
}
|
|
|
|
// add our stuff back together
|
|
resultCode += previousString+tokenString;
|
|
// next
|
|
lastIdx = tok.endIdx;
|
|
lastTok = tok;
|
|
tok = lex.next();
|
|
}
|
|
//console.log(resultCode);
|
|
if (brackets>0) {
|
|
Espruino.Core.Notifications.error("You have more open brackets than close brackets. Please see the hints in the Editor window.");
|
|
return undefined;
|
|
}
|
|
if (brackets<0) {
|
|
Espruino.Core.Notifications.error("You have more close brackets than open brackets. Please see the hints in the Editor window.");
|
|
return undefined;
|
|
}
|
|
return resultCode;
|
|
};
|
|
|
|
Espruino.Core.CodeWriter = {
|
|
init : init,
|
|
writeToEspruino : writeToEspruino,
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Automatically load any referenced modules
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("MODULE_URL", {
|
|
section : "Communications",
|
|
name : "Module URL",
|
|
description : "Where to search online for modules when `require()` is used",
|
|
type : "string",
|
|
defaultValue : "https://www.espruino.com/modules"
|
|
});
|
|
Espruino.Core.Config.add("MODULE_EXTENSIONS", {
|
|
section : "Communications",
|
|
name : "Module Extensions",
|
|
description : "The file extensions to use for each module. These are checked in order and the first that exists is used. One or more file extensions (including the dot) separated by `|`",
|
|
type : "string",
|
|
defaultValue : ".min.js|.js"
|
|
});
|
|
Espruino.Core.Config.add("MODULE_AS_FUNCTION", {
|
|
section : "Communications",
|
|
name : "Modules uploaded as functions",
|
|
description : "Espruino 1v90 and later ONLY. Upload modules as Functions, allowing any functions inside them to be loaded directly from flash when 'Save on Send' is enabled.",
|
|
type : "boolean",
|
|
defaultValue : true
|
|
});
|
|
|
|
Espruino.Core.Config.add("MODULE_PROXY_ENABLED", {
|
|
section : "Communications",
|
|
name : "Enable Proxy",
|
|
description : "Enable Proxy for loading the modules when `require()` is used (only in native IDE)",
|
|
type : "boolean",
|
|
defaultValue : false
|
|
});
|
|
|
|
Espruino.Core.Config.add("MODULE_PROXY_URL", {
|
|
section : "Communications",
|
|
name : "Proxy URL",
|
|
description : "Proxy URL for loading the modules when `require()` is used (only in native IDE)",
|
|
type : "string",
|
|
defaultValue : ""
|
|
});
|
|
|
|
Espruino.Core.Config.add("MODULE_PROXY_PORT", {
|
|
section : "Communications",
|
|
name : "Proxy Port",
|
|
description : "Proxy Port for loading the modules when `require()` is used (only in native IDE)",
|
|
type : "string",
|
|
defaultValue : ""
|
|
});
|
|
|
|
// When code is sent to Espruino, search it for modules and add extra code required to load them
|
|
Espruino.addProcessor("transformForEspruino", function(code, callback) {
|
|
loadModules(code, callback);
|
|
});
|
|
|
|
// Append the 'getModule' processor as the last (plugins get initialized after Espruino.Core modules)
|
|
Espruino.Plugins.CoreModules = {
|
|
init: function() {
|
|
Espruino.addProcessor("getModule", function(data, callback) {
|
|
if (data.moduleCode!==undefined) { // already provided be previous getModule processor
|
|
return callback(data);
|
|
}
|
|
|
|
fetchGetModule(data, callback);
|
|
});
|
|
}
|
|
};
|
|
}
|
|
|
|
function isBuiltIn(module) {
|
|
var d = Espruino.Core.Env.getData();
|
|
// If we got data from the device itself, use that as the
|
|
// definitive answer
|
|
if ("string" == typeof d.MODULES)
|
|
return d.MODULES.split(",").indexOf(module)>=0;
|
|
// Otherwise try and figure it out from JSON
|
|
if ("info" in d &&
|
|
"builtin_modules" in d.info &&
|
|
d.info.builtin_modules.indexOf(module)>=0)
|
|
return true;
|
|
// Otherwise assume we don't have it
|
|
return false;
|
|
}
|
|
|
|
/** Find any instances of require(...) in the code string and return a list */
|
|
var getModulesRequired = function(code) {
|
|
var modules = [];
|
|
|
|
var lex = Espruino.Core.Utils.getLexer(code);
|
|
var tok = lex.next();
|
|
var state = 0;
|
|
while (tok!==undefined) {
|
|
if (state==0 && tok.str=="require") {
|
|
state=1;
|
|
} else if (state==1 && tok.str=="(") {
|
|
state=2;
|
|
} else if (state==2 && (tok.type=="STRING")) {
|
|
state=0;
|
|
var module = tok.value;
|
|
if (!isBuiltIn(module) && modules.indexOf(module)<0)
|
|
modules.push(module);
|
|
} else
|
|
state = 0;
|
|
tok = lex.next();
|
|
}
|
|
|
|
return modules;
|
|
};
|
|
|
|
/** Download modules from MODULE_URL/.. */
|
|
function fetchGetModule(data, callback) {
|
|
var fullModuleName = data.moduleName;
|
|
|
|
// try and load the module the old way...
|
|
console.log("loadModule("+fullModuleName+")");
|
|
|
|
var urls = []; // Array of where to look for this module
|
|
var modName; // Simple name of the module
|
|
if(Espruino.Core.Utils.isURL(fullModuleName)) {
|
|
modName = fullModuleName.substr(fullModuleName.lastIndexOf("/") + 1).split(".")[0];
|
|
urls = [ fullModuleName ];
|
|
} else {
|
|
modName = fullModuleName;
|
|
Espruino.Config.MODULE_URL.split("|").forEach(function (url) {
|
|
url = url.trim();
|
|
if (url.length!=0)
|
|
Espruino.Config.MODULE_EXTENSIONS.split("|").forEach(function (extension) {
|
|
urls.push(url + "/" + fullModuleName + extension);
|
|
})
|
|
});
|
|
};
|
|
|
|
// Recursively go through all the urls
|
|
(function download(urls) {
|
|
if (urls.length==0) {
|
|
return callback(data);
|
|
}
|
|
var dlUrl = urls[0];
|
|
Espruino.Core.Utils.getURL(dlUrl, function (code) {
|
|
if (code!==undefined) {
|
|
// we got it!
|
|
data.moduleCode = code;
|
|
data.isMinified = dlUrl.substr(-7)==".min.js";
|
|
return callback(data);
|
|
} else {
|
|
// else try next
|
|
download(urls.slice(1));
|
|
}
|
|
});
|
|
})(urls);
|
|
}
|
|
|
|
|
|
/** Called from loadModule when a module is loaded. Parse it for other modules it might use
|
|
* and resolve dfd after all submodules have been loaded */
|
|
function moduleLoaded(resolve, requires, modName, data, loadedModuleData, alreadyMinified){
|
|
// Check for any modules used from this module that we don't already have
|
|
var newRequires = getModulesRequired(data);
|
|
console.log(" - "+modName+" requires "+JSON.stringify(newRequires));
|
|
// if we need new modules, set them to load and get their promises
|
|
var newPromises = [];
|
|
for (var i in newRequires) {
|
|
if (requires.indexOf(newRequires[i])<0) {
|
|
console.log(" Queueing "+newRequires[i]);
|
|
requires.push(newRequires[i]);
|
|
newPromises.push(loadModule(requires, newRequires[i], loadedModuleData));
|
|
} else {
|
|
console.log(" Already loading "+newRequires[i]);
|
|
}
|
|
}
|
|
|
|
var loadProcessedModule = function (module) {
|
|
// if we needed to load something, wait until it's loaded before resolving this
|
|
Promise.all(newPromises).then(function(){
|
|
// add the module to end of our array
|
|
if (Espruino.Config.MODULE_AS_FUNCTION)
|
|
loadedModuleData.push("Modules.addCached(" + JSON.stringify(module.name) + ",function(){" + module.code + "});");
|
|
else
|
|
loadedModuleData.push("Modules.addCached(" + JSON.stringify(module.name) + "," + JSON.stringify(module.code) + ");");
|
|
// We're done
|
|
resolve();
|
|
});
|
|
}
|
|
if (alreadyMinified)
|
|
loadProcessedModule({code:data,name:modName});
|
|
else
|
|
Espruino.callProcessor("transformModuleForEspruino", {code:data,name:modName}, loadProcessedModule);
|
|
}
|
|
|
|
/** Given a module name (which could be a URL), try and find it. Return
|
|
* a deferred thingybob which signals when we're done. */
|
|
function loadModule(requires, fullModuleName, loadedModuleData) {
|
|
return new Promise(function(resolve, reject) {
|
|
// First off, try and find this module using callProcessor
|
|
Espruino.callProcessor("getModule",
|
|
{ moduleName:fullModuleName, moduleCode:undefined, isMinified:false },
|
|
function(data) {
|
|
if (data.moduleCode===undefined) {
|
|
Espruino.Core.Notifications.warning("Module "+fullModuleName+" not found");
|
|
return resolve();
|
|
}
|
|
|
|
// great! it found something. Use it.
|
|
moduleLoaded(resolve, requires, fullModuleName, data.moduleCode, loadedModuleData, data.isMinified);
|
|
});
|
|
});
|
|
}
|
|
|
|
/** Finds instances of 'require' and then ensures that
|
|
those modules are loaded into the module cache beforehand
|
|
(by inserting the relevant 'addCached' commands into 'code' */
|
|
function loadModules(code, callback){
|
|
var loadedModuleData = [];
|
|
var requires = getModulesRequired(code);
|
|
if (requires.length == 0) {
|
|
// no modules needed - just return
|
|
callback(code);
|
|
} else {
|
|
Espruino.Core.Status.setStatus("Loading modules");
|
|
// Kick off the module loading (each returns a promise)
|
|
var promises = requires.map(function (moduleName) {
|
|
return loadModule(requires, moduleName, loadedModuleData);
|
|
});
|
|
// When all promises are complete
|
|
Promise.all(promises).then(function(){
|
|
callback(loadedModuleData.join("\n") + "\n" + code);
|
|
});
|
|
}
|
|
};
|
|
|
|
|
|
Espruino.Core.Modules = {
|
|
init : init
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Board Environment variables (process.env) - queried when board connects
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
var environmentData = {};
|
|
var boardData = {};
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("ENV_ON_CONNECT", {
|
|
section : "Communications",
|
|
name : "Request board details on connect",
|
|
description : 'Just after the board is connected, should we query `process.env` to find out which board we\'re connected to? '+
|
|
'This enables the Web IDE\'s code completion, compiler features, and firmware update notice.',
|
|
type : "boolean",
|
|
defaultValue : true,
|
|
});
|
|
|
|
Espruino.addProcessor("connected", function(data, callback) {
|
|
// Give us some time for any stored data to come in
|
|
setTimeout(queryBoardProcess, 200, data, callback);
|
|
});
|
|
}
|
|
|
|
function queryBoardProcess(data, callback) {
|
|
if ((!Espruino.Config.ENV_ON_CONNECT) ||
|
|
(Espruino.Core.MenuFlasher && Espruino.Core.MenuFlasher.isFlashing())) {
|
|
return callback(data);
|
|
}
|
|
|
|
Espruino.Core.Utils.executeExpression("process.env", function(result) {
|
|
var json = {};
|
|
if (result!==undefined) {
|
|
try {
|
|
json = JSON.parse(result);
|
|
} catch (e) {
|
|
console.log("JSON parse failed - " + e + " in " + JSON.stringify(result));
|
|
}
|
|
}
|
|
if (Object.keys(json).length==0) {
|
|
Espruino.Core.Notifications.error("Unable to retrieve board information.\nConnection Error?");
|
|
// make sure we don't remember a previous board's info
|
|
json = {
|
|
VERSION : undefined,
|
|
BOARD : undefined,
|
|
MODULES : undefined,
|
|
EXPTR : undefined
|
|
};
|
|
} else {
|
|
if (json.BOARD && json.VERSION)
|
|
Espruino.Core.Notifications.info("Found " +json.BOARD+", "+json.VERSION);
|
|
}
|
|
// now process the enviroment variables
|
|
for (var k in json) {
|
|
boardData[k] = json[k];
|
|
environmentData[k] = json[k];
|
|
}
|
|
if (environmentData.VERSION) {
|
|
var v = environmentData.VERSION;
|
|
var vIdx = v.indexOf("v");
|
|
if (vIdx>=0) {
|
|
environmentData.VERSION_MAJOR = parseInt(v.substr(0,vIdx));
|
|
var minor = v.substr(vIdx+1);
|
|
var dot = minor.indexOf(".");
|
|
if (dot>=0)
|
|
environmentData.VERSION_MINOR = parseInt(minor.substr(0,dot)) + parseInt(minor.substr(dot+1))*0.001;
|
|
else
|
|
environmentData.VERSION_MINOR = parseFloat(minor);
|
|
}
|
|
}
|
|
|
|
Espruino.callProcessor("environmentVar", environmentData, function(envData) {
|
|
environmentData = envData;
|
|
callback(data);
|
|
});
|
|
});
|
|
}
|
|
|
|
/** Get all data merged in from the board */
|
|
function getData() {
|
|
return environmentData;
|
|
}
|
|
|
|
/** Get just the board's environment data */
|
|
function getBoardData() {
|
|
return boardData;
|
|
}
|
|
|
|
/** Get a list of boards that we know about */
|
|
function getBoardList(callback) {
|
|
var jsonDir = Espruino.Config.BOARD_JSON_URL;
|
|
|
|
// ensure jsonDir ends with slash
|
|
if (jsonDir.indexOf('/', jsonDir.length - 1) === -1) {
|
|
jsonDir += '/';
|
|
}
|
|
|
|
Espruino.Core.Utils.getJSONURL(jsonDir + "boards.json", function(boards){
|
|
// now load all the individual JSON files
|
|
var promises = [];
|
|
for (var boardId in boards) {
|
|
promises.push((function() {
|
|
var id = boardId;
|
|
return new Promise(function(resolve, reject) {
|
|
Espruino.Core.Utils.getJSONURL(jsonDir + boards[boardId].json, function (data) {
|
|
boards[id]["json"] = data;
|
|
resolve();
|
|
});
|
|
});
|
|
})());
|
|
}
|
|
|
|
// When all are loaded, load the callback
|
|
Promise.all(promises).then(function() {
|
|
callback(boards);
|
|
});
|
|
});
|
|
}
|
|
|
|
Espruino.Core.Env = {
|
|
init : init,
|
|
getData : getData,
|
|
getBoardData : getBoardData,
|
|
getBoardList : getBoardList,
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Automatically run an assembler on inline assembler statements
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
var base64_encode;
|
|
if (typeof btoa == "undefined")
|
|
base64_encode = function(s) { return Buffer.from(s).toString('base64'); };
|
|
else
|
|
base64_encode = btoa;
|
|
|
|
/* Thumb reference :
|
|
http://ece.uwaterloo.ca/~ece222/ARM/ARM7-TDMI-manual-pt3.pdf
|
|
|
|
ARM reference
|
|
https://web.eecs.umich.edu/~prabal/teaching/eecs373-f11/readings/ARMv7-M_ARM.pdf
|
|
*/
|
|
|
|
// list of registers (for push/pop type commands)
|
|
function rlist_lr(value) {
|
|
var regs = value.split(",");
|
|
var vals = { r0:1,r1:2,r2:4,r3:8,r4:16,r5:32,r6:64,r7:128,lr:256 };
|
|
var bits = 0;
|
|
for (var i in regs) {
|
|
var reg = regs[i].trim();
|
|
if (!(reg in vals)) throw "Unknown register name "+reg;
|
|
bits |= vals[reg];
|
|
}
|
|
return bits;
|
|
}
|
|
|
|
function reg(reg_offset) {
|
|
return function(reg) {
|
|
var vals = { r0:0,r1:1,r2:2,r3:3,r4:4,r5:5,r6:6,r7:7 };
|
|
if (!(reg in vals)) throw "Unknown register name "+reg;
|
|
return vals[reg]<<reg_offset;
|
|
};
|
|
}
|
|
function reg4(reg_offset) { // 4 bit register
|
|
return function(reg) {
|
|
var vals = { r0:0,r1:1,r2:2,r3:3,r4:4,r5:5,r6:6,r7:7,
|
|
r8:8,r9:9,r10:10,r11:11,r12:12,r13:13,r14:14,r15:15,
|
|
lr:14, pc:15 };
|
|
if (!(reg in vals)) throw "Unknown register name "+reg;
|
|
return vals[reg]<<reg_offset;
|
|
};
|
|
}
|
|
|
|
|
|
function reg_or_immediate(reg_offset, immediate_bit) {
|
|
return function(reg) {
|
|
var regVal = parseInt(reg);
|
|
if (regVal>=0 && regVal<8)
|
|
return ((regVal&7)<<reg_offset) | (1<<immediate_bit);
|
|
var vals = { r0:0,r1:1,r2:2,r3:3,r4:4,r5:5,r6:6,r7:7 };
|
|
if (!(reg in vals)) throw "Unknown register name, or immediate out of range 0..7 "+reg;
|
|
return vals[reg]<<reg_offset;
|
|
};
|
|
}
|
|
|
|
function reg_base_offset(base_offset, offset_offset) {
|
|
return function(value) {
|
|
var parms = value.split(",");
|
|
return reg(base_offset)(parms[0]) | reg(offset_offset)(parms[0]);
|
|
};
|
|
}
|
|
|
|
function thumb2_immediate_t3(value) {
|
|
if (value[0]!="#")
|
|
throw new "Expecting '#' before number";
|
|
var v = parseInt(value.substr(1));
|
|
if (v>=0 && v<65536) {
|
|
// https://web.eecs.umich.edu/~prabal/teaching/eecs373-f11/readings/ARMv7-M_ARM.pdf page 347
|
|
var imm4,i,imm3,imm8; // what the...?
|
|
imm4 = (v>>12)&15;
|
|
i = (v>>11)&1;
|
|
imm3 = (v>>8)&7;
|
|
imm8 = v&255;
|
|
return (i<<26) | (imm4<<16) | (imm3<<12) | imm8;
|
|
}
|
|
throw "Invalid number '"+value+"' - must be between 0 and 65535";
|
|
}
|
|
|
|
function _int(offset, bits, shift, signed) {
|
|
return function(value, labels) {
|
|
var maxValue = ((1<<bits)-1) << shift;
|
|
var minValue = 0;
|
|
if (signed) {
|
|
minValue = -(1<<(bits-1));
|
|
maxValue += minValue;
|
|
}
|
|
|
|
var binValue = undefined;
|
|
if (value[0]=="#") {
|
|
binValue = parseInt(value.substr(1));
|
|
} else {
|
|
var addValue = 0;
|
|
var maths = value.indexOf("+");
|
|
if (maths >= 0) {
|
|
addValue = parseInt(value.substr(maths));
|
|
value = value.substr(0,maths);
|
|
}
|
|
if (value in labels)
|
|
binValue = labels[value] + addValue - labels["PC"];
|
|
else
|
|
throw "Unknown label '"+value+"'";
|
|
}
|
|
|
|
|
|
//console.log("VALUE----------- "+binValue+" PC "+labels["PC"]+" L "+labels[value]);
|
|
|
|
if (binValue>=minValue && binValue<=maxValue && (binValue&((1<<shift)-1))==0)
|
|
return ((binValue >> shift) & ((1<<bits)-1)) << offset;
|
|
|
|
var msg = "Invalid number '"+value+"' ("+binValue+") - must be between 0 and "+maxValue;
|
|
if (shift!=0) msg += " and a multiple of "+(1<<shift);
|
|
throw msg;
|
|
};
|
|
}
|
|
|
|
function uint(offset, bits, shift) {
|
|
return _int(offset, bits, shift, false);
|
|
}
|
|
|
|
function sint(offset, bits, shift) {
|
|
return _int(offset, bits, shift, true);
|
|
}
|
|
|
|
// special 23-bit address (bottom bit ignored) split into two halves
|
|
function bl_addr() {
|
|
var normal = sint(0, 22, 1); // un-split address
|
|
return function(value, labels) {
|
|
var v = normal(value, labels);
|
|
return ((v>>11)&0x7FF)<<16 | (v&0x7FF);
|
|
};
|
|
}
|
|
|
|
var ops = {
|
|
// Format 1: move shifted register
|
|
"lsl" :[{ base:"00000-----___---", regex : /(r[0-7]),(r[0-7]),(#[0-9]+)$/, args:[reg(0),reg(3),uint(6,5,0)] },
|
|
{ base:"0100000010___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // 5.4 d = d << s
|
|
"lsr" :[{ base:"00001-----___---", regex : /(r[0-7]),(r[0-7]),(#[0-9]+)$/, args:[reg(0),reg(3),uint(6,5,0)] },
|
|
{ base:"0100000011___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // 5.4 d = d >> s
|
|
"asr" :[{ base:"00010-----___---", regex : /(r[0-7]),(r[0-7]),(#[0-9]+)$/, args:[reg(0),reg(3),uint(6,5,0)] },
|
|
{ base:"0100000100___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // 5.4 d = d >>> s
|
|
// 5.2 Format 2: add/subtract
|
|
// 00011
|
|
// 5.3 Format 3: move/compare/add/subtract immediate
|
|
"cmp" :[{ base:"00101---________", regex : /(r[0-7]),(#[0-9]+)$/, args:[reg(8),uint(0,8,0)] }, // move/compare/subtract immediate
|
|
{ base:"0100001010___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // 5.4 test d-s
|
|
// 5.4 Format 4: ALU operations
|
|
"and" :[{ base:"0100000000___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }],
|
|
"eor" :[{ base:"0100000001___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }],
|
|
// lsl is above
|
|
// lsr is above
|
|
// asr is above
|
|
"adc" :[{ base:"0100000101___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // d + s + carry
|
|
"sbc" :[{ base:"0100000110___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // d - s - !carry
|
|
"ror" :[{ base:"0100000111___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // rotate right
|
|
"tst" :[{ base:"0100001000___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // test
|
|
"neg" :[{ base:"0100001001___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // - s
|
|
// cmp is above
|
|
"cmn" :[{ base:"0100001011___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // test d+s
|
|
"orr" :[{ base:"0100001100___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // |
|
|
"mul" :[{ base:"0100001101___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // s*d
|
|
"bic" :[{ base:"0100001110___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // d & ~s
|
|
"mvn" :[{ base:"0100001111___---", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }], // ~s
|
|
// 5.5 Format 5: Hi register operations/branch exchange
|
|
// 5.6 Format 6: PC-relative load
|
|
// done (below)
|
|
// 5.7 Format 7: load/store with register offset
|
|
// done (below)
|
|
// 5.8 Format 8: load/store sign-extended byte/halfword
|
|
// 5.9 Format 9: load/store with immediate offset
|
|
// done (below)
|
|
// 5.10 Format 10: load/store halfword
|
|
// 5.11 Format 11: SP-relative load/store
|
|
// 5.12 Format 12: load address
|
|
// done (below)
|
|
// 5.13 Format 13: add offset to Stack Pointer
|
|
// 5.14 Format 14: push/pop registers
|
|
// done (below)
|
|
// 5.16 Format 16: conditional branch
|
|
"beq" :[{ base:"11010000________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bne" :[{ base:"11010001________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bcs" :[{ base:"11010010________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bcc" :[{ base:"11010011________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bmi" :[{ base:"11010100________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bpl" :[{ base:"11010101________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bvs" :[{ base:"11010110________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bvc" :[{ base:"11010111________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bhi" :[{ base:"11011000________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bls" :[{ base:"11011001________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bge" :[{ base:"11011010________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"blt" :[{ base:"11011011________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"bgt" :[{ base:"11011100________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
"ble" :[{ base:"11011101________", regex : /^(.*)$/, args:[sint(0,8,1)] }], // 5.16 Format 16: conditional branch
|
|
// 5.17 Format 17: software interrupt
|
|
// 5.18 Format 18: unconditional branch
|
|
"b" :[{ base:"11100___________", regex : /^(.*)$/, args:[sint(0,11,1)] }],
|
|
// 5.19 Format 19: long branch with link
|
|
"bl" :[{ base:"11110___________11111___________", regex : /^(.*)$/, args:[bl_addr()] }],
|
|
"bx" :[{ base:"010001110----000", regex : /(lr|r[0-9]+)$/, args:[reg4(3)] }],
|
|
// ....
|
|
|
|
|
|
"adr" :[{ base:"10100---________", regex : /^(r[0-7]),([a-zA-Z_][0-9a-zA-Z_]*)$/,args:[reg(8),uint(0,8,2)] }, // ADR pseudo-instruction to save address (actually ADD PC)
|
|
{ base:"10100---________", regex : /^(r[0-7]),([a-zA-Z_][0-9a-zA-Z_]*\+[0-9]+)$/,args:[reg(8),uint(0,8,2)] }],
|
|
"push" :[{ base:"1011010-________", regex : /^{(.*)}$/, args:[rlist_lr] }], // 5.14 Format 14: push/pop registers
|
|
"pop" :[{ base:"1011110-________", regex : /^{(.*)}$/, args:[rlist_lr] }], // 5.14 Format 14: push/pop registers
|
|
"add" :[{ base:"00110---________", regex : /(r[0-7]),(#[0-9]+)$/, args:[reg(8),uint(0,8,0)] }, // move/compare/subtract immediate
|
|
{ base:"10100---________", regex : /^(r[0-7]),pc,(#[0-9]+)$/,args:[reg(8),uint(0,8,2)] },
|
|
{ base:"10101---________", regex : /^(r[0-7]),sp,(#[0-9]+)$/, args:[reg(8),uint(0,8,2)] },
|
|
{ base:"101100000_______", regex : /^sp,(#[0-9]+)$/, args:[uint(0,7,2)] },
|
|
{ base:"00011-0___---___", regex : /^(r[0-7]),(r[0-7]),([^,]+)$/, args:[reg(0),reg(3),reg_or_immediate(6,10)] } ], // Format 2: add/subtract
|
|
"adds" :[{ base:"00011-0___---___", regex : /^(r[0-7]),(r[0-7]),([^,]+)$/, args:[reg(0),reg(3),reg_or_immediate(6,10)] } ], //?
|
|
"adc.w":[{ base:"111010110100----________--------", regex : /^(r[0-7]),(r[0-7]),(r[0-7])$/,args:[reg(16),reg(8),reg(0)] }], // made this up. probably wrong
|
|
"add.w":[{ base:"11110001--------________--------", regex : /^(r[0-7]),(r[0-7]),(#[0-9]+)$/,args:[reg(16),reg(8),uint(0,8,0)] }], // made this up. probably wrong
|
|
"sub" :[{ base:"00111---________", regex : /(r[0-7]),(#[0-9]+)$/, args:[reg(8),uint(0,8,0)] }, // move/compare/subtract immediate
|
|
/*{ base:"10100---________", regex : /^([^,]+),pc,(#[0-9]+)$/,args:[reg(8),uint(0,8,2)] },*/
|
|
{ base:"101100001_______", regex : /^sp,(#[0-9]+)$/, args:[uint(0,7,2)] },
|
|
{ base:"00011-1___---___", regex : /^([^,]+),([^,]+),([^,]+)$/, args:[reg(0),reg(3),reg_or_immediate(6,10)] } ],
|
|
|
|
"str" :[{ base:"0101000---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }, // 5.7 Format 7: load/store with register offset
|
|
{ base:"10010---________", regex : /(r[0-7]),\[sp,(#[0-9]+)\]$/, args:[reg(8),uint(0,8,2)] }, // 5.11 SP-relative store
|
|
{ base:"0110000000___---", regex : /(r[0-7]),\[(r[0-7])\]$/, args:[reg(0),reg(3)] }, // 5.9 Format 9: load/store with no offset
|
|
{ base:"0110000---___---", regex : /(r[0-7]),\[(r[0-7]),(#[0-9]+)\]$/, args:[reg(0),reg(3), uint(6,5,2)] }], // 5.9 Format 9: load/store with immediate offset
|
|
"strb" :[{ base:"0101010---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }, // 5.7 Format 7: load/store with register offset
|
|
{ base:"01110-----___---", regex : /(r[0-7]),\[(r[0-7]),(#[0-9]+)\]$/, args:[reg(0),reg(3), uint(6,5,0)] }], // 5.9 Format 9: load/store with immediate offset
|
|
"strh" :[{ base:"0101001---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }, // 5.7 Format 7: load/store with register offset
|
|
{ base:"10000-----___---", regex : /(r[0-7]),\[(r[0-7]),(#[0-9]+)\]$/, args:[reg(0),reg(3), uint(6,5,1)] }], // 5.9 Format 9: load/store with immediate offset
|
|
"ldr" :[{ base:"01001---________", regex : /(r[0-7]),\[pc,(#[0-9]+)\]$/, args:[reg(8),uint(0,8,2)] }, // 5.6 Format 6: PC-relative load
|
|
{ base:"10011---________", regex : /(r[0-7]),\[sp,(#[0-9]+)\]$/, args:[reg(8),uint(0,8,2)] }, // 5.11 SP-relative load
|
|
{ base:"01001---________", regex : /(r[0-7]),([a-zA-Z_][0-9a-zA-Z_]*)$/, args:[reg(8),uint(0,8,2)] }, // 5.6 Format 6: PC-relative load (using label)
|
|
{ base:"01001---________", regex : /(r[0-7]),([a-zA-Z_][0-9a-zA-Z_]*\+[0-9]+)$/, args:[reg(8),uint(0,8,2)] }, // 5.6 Format 6: PC-relative load (using label and maths - huge hack)
|
|
{ base:"0101100---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }, // 5.7 Format 7: load/store with register offset
|
|
{ base:"0110100000___---", regex : /(r[0-7]),\[(r[0-7])\]$/, args:[reg(0),reg(3)] }, // 5.9 Format 9: load/store with no offset
|
|
{ base:"0110100---___---", regex : /(r[0-7]),\[(r[0-7]),(#[0-9]+)\]$/, args:[reg(0),reg(3), uint(6,5,2)] }], // 5.9 Format 9: load/store with immediate offset
|
|
|
|
"ldrb" :[{ base:"0101110---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }, // 5.7 Format 7: load/store with register offset
|
|
{ base:"01111-----___---", regex : /(r[0-7]),\[(r[0-7]),(#[0-9]+)\]$/, args:[reg(0),reg(3), uint(6,5,0)] }], // 5.9 Format 9: load/store with immediate offset
|
|
"ldrsb":[{ base:"0101011---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }], // 5.7 Format 7: load/store with register offset
|
|
"ldrh" :[{ base:"0101101---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }, // 5.7 Format 7: load/store with register offset
|
|
{ base:"10001-----___---", regex : /(r[0-7]),\[(r[0-7]),(#[0-9]+)\]$/, args:[reg(0),reg(3), uint(6,5,1)] }], // 5.9 Format 9: load/store with immediate offset
|
|
"ldrsh":[{ base:"0101111---___---", regex : /(r[0-7]),\[(r[0-7]),(r[0-7])\]$/, args:[reg(0),reg(3),reg(6)] }], // 5.7 Format 7: load/store with register offset
|
|
"mov" :[{ base:"00100---________", regex : /(r[0-7]),(#[0-9]+)$/, args:[reg(8),uint(0,8,0)] }, // move/compare/subtract immediate
|
|
{ base:"0001110000---___", regex : /(r[0-7]),(r[0-7])$/, args:[reg(0),reg(3)] }, // actually 'add Rd,Rs,#0'
|
|
{ base:"0100011010---101", regex : /sp,(r[0-7])$/, args:[reg(3)] }], // made up again
|
|
"movs" :[{ base:"00100---________", regex : /(r[0-7]),(#[0-9]+)$/, args:[reg(8),uint(0,8,0)] }], // is this even in thumb?
|
|
"movw" :[{ base:"11110-100100----0___----________", regex : /(r[0-7]),(#[0-9]+)$/, args:[reg4(8),thumb2_immediate_t3] }],
|
|
|
|
".word":[{ base:"--------------------------------", regex : /0x([0-9A-Fa-f]+)$/, args:[function(v){v=parseInt(v,16);return (v>>16)|(v<<16);}] },
|
|
{ base:"--------------------------------", regex : /([0-9]+)$/, args:[function(v){v=parseInt(v);return (v>>16)|(v<<16);}] }],
|
|
"nop" :[{ base:"0100011011000000", regex : "", args:[] }], // MOV R8,R8 (Format 5)
|
|
"cpsie" :[{ base:"1011011001100010", regex : /i/, args:[] }], // made up again
|
|
"cpsid" :[{ base:"1011011001110010", regex : /i/, args:[] }], // made up again
|
|
"wfe" :[{ base:"1011111100100000", regex : /i/, args:[] }],
|
|
"wfi" :[{ base:"1011111100110000", regex : /i/, args:[] }],
|
|
|
|
// for this, uint needs to work without a hash
|
|
// "swi" :[{ base:"11011111--------", regex : /([0-9]+)$/, args:[uint(0,8,0)] }], // Format 17: software interrupt
|
|
};
|
|
|
|
|
|
function getOpCode(binary) {
|
|
var base = "";
|
|
for (var b in binary)
|
|
if ("-_".indexOf(binary[b])>=0)
|
|
base += "0";
|
|
else
|
|
base += binary[b];
|
|
var opCode = parseInt(base,2);
|
|
if (opCode<0) opCode = opCode + 2147483648.0;
|
|
return opCode;
|
|
}
|
|
|
|
function assemble_internal(asmLines, wordCallback, labels) {
|
|
var addr = 0;
|
|
var newLabels = {};
|
|
asmLines.forEach(function (line) {
|
|
// setup labels
|
|
if (labels!==undefined)
|
|
labels["PC"] = addr+4;
|
|
// handle line
|
|
line = line.trim();
|
|
if (line=="") return;
|
|
if (line.substr(-1)==":") {
|
|
// it's a label
|
|
var labelName = line.substr(0,line.length-1);
|
|
if (newLabels[labelName] !== undefined)
|
|
throw "Label '"+labelName+"' was already defined";
|
|
newLabels[labelName] = addr;
|
|
return;
|
|
}
|
|
|
|
// parse instruction
|
|
var firstArgEnd = line.indexOf("\t");
|
|
if (firstArgEnd<0) firstArgEnd = line.indexOf(" ");
|
|
if (firstArgEnd<0) firstArgEnd=line.length;
|
|
var opName = line.substr(0,firstArgEnd);
|
|
var args = line.substr(firstArgEnd).replace(/[ \t]/g,"").trim();
|
|
if (!(opName in ops)) throw "Unknown Op '"+opName+"' in '"+line+"'";
|
|
// search ops
|
|
var found = false;
|
|
for (var n in ops[opName]) {
|
|
var op = ops[opName][n];
|
|
var m;
|
|
if (m=args.match(op.regex)) {
|
|
found = true;
|
|
// work out the base opcode
|
|
var opCode = getOpCode(op.base);
|
|
|
|
if (labels!==undefined) {
|
|
/* If we're properly generating code, parse each argument.
|
|
Otherwise we're just working out the size in bytes of each line
|
|
and we can skip this */
|
|
for (var i in op.args) {
|
|
//console.log(i,m[(i|0)+1]);
|
|
var argFunction = op.args[i];
|
|
var bits = argFunction(m[(i|0)+1], labels);
|
|
//console.log(" ",bits)
|
|
opCode |= bits;
|
|
}
|
|
}
|
|
|
|
if (op.base.length > 16) {
|
|
wordCallback((opCode>>>16));
|
|
wordCallback(opCode&0xFFFF);
|
|
addr += 4;
|
|
} else {
|
|
wordCallback(opCode);
|
|
addr += 2;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
// now parse args
|
|
if (!found)
|
|
throw "Unknown arg style '"+args+"' in '"+line+"'";
|
|
});
|
|
return newLabels;
|
|
}
|
|
|
|
function assemble(asmLines, wordCallback) {
|
|
// remove line comments
|
|
asmLines = asmLines.map(function(l) {
|
|
var i;
|
|
i = l.indexOf(";");
|
|
if (i>=0) l = l.substr(0,i);
|
|
i = l.indexOf("//");
|
|
if (i>=0) l = l.substr(0,i);
|
|
return l;
|
|
});
|
|
// process assembly to grab labels
|
|
var labels = assemble_internal(asmLines, function() {}, undefined);
|
|
console.log("Assembler Labels:",labels);
|
|
// process again to actually get an output
|
|
assemble_internal(asmLines, wordCallback, labels);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//---------------------------------------------------------------------------
|
|
//---------------------------------------------------------------------------
|
|
|
|
function init() {
|
|
// When code is sent to Espruino, search it for bits of assembler and then assemble them
|
|
Espruino.addProcessor("transformForEspruino", function(code, callback) {
|
|
findASMBlocks(code, "", callback);
|
|
});
|
|
// When a module is sent to Espruino...
|
|
Espruino.addProcessor("transformModuleForEspruino", function(module, callback) {
|
|
findASMBlocks(module.code, " in "+module.name, function(code) {
|
|
module.code = code;
|
|
callback(module);
|
|
});
|
|
});
|
|
}
|
|
|
|
function assembleBlock(asmLines, description) {
|
|
var machineCode = [];
|
|
try {
|
|
assemble(asmLines, function(word) { machineCode.push("0x"+word.toString(16)); });
|
|
} catch (err) {
|
|
console.log("Assembler failed: "+err+description);
|
|
Espruino.Core.Notifications.error("Assembler failed: "+err+description);
|
|
return undefined;
|
|
}
|
|
|
|
return machineCode;
|
|
}
|
|
|
|
/* Finds instances of 'E.asm' and replaces them */
|
|
function findASMBlocks(code, description, callback){
|
|
|
|
function match(str, type) {
|
|
if (str!==undefined && tok.str!=str) {
|
|
Espruino.Core.Notifications.error("Expecting '"+str+"' but got '"+tok.str+description+"'. Should have E.asm('arg spec', 'asmline1', ..., 'asmline2'");
|
|
return false;
|
|
}
|
|
if (type!==undefined && tok.type!=type) {
|
|
Espruino.Core.Notifications.error("Expecting a "+type+" but got "+tok.type+description+". Should have E.asm('arg spec', 'asmline1', ..., 'asmline2'");
|
|
return false;
|
|
}
|
|
tok = lex.next();
|
|
return true;
|
|
}
|
|
|
|
var foundAsm = true;
|
|
var assembledCode = "";
|
|
var asmBlockCount = 1;
|
|
while (foundAsm) {
|
|
foundAsm = false;
|
|
var lex = Espruino.Core.Utils.getLexer(code);
|
|
var tok = lex.next();
|
|
var state = 0;
|
|
var startIndex = -1;
|
|
while (tok!==undefined) {
|
|
if (state==0 && tok.str=="E") { state=1; startIndex = tok.startIdx; tok = lex.next();
|
|
} else if (state==1 && tok.str==".") { state=2; tok = lex.next();
|
|
} else if (state==2 && (tok.str=="asm")) { state=3; tok = lex.next();
|
|
} else if (state==3 && (tok.str=="(")) {
|
|
foundAsm = true;
|
|
state=0;
|
|
tok = lex.next(); // skip (
|
|
var argSpec = tok.value;
|
|
var asmLines = [];
|
|
if (!match(undefined,"STRING")) return;
|
|
if (!match(",",undefined)) return;
|
|
while (tok && tok.str!=")") {
|
|
var lines = tok.value.split("\n");
|
|
lines.forEach(function(l) {
|
|
asmLines.push(l);
|
|
});
|
|
if (!match(undefined,"STRING")) return;
|
|
if (tok.str!=")")
|
|
if (!match(",",undefined)) return;
|
|
}
|
|
if (!match(")",undefined)) return;
|
|
var endIndex = tok.endIdx;
|
|
|
|
var machineCode = assembleBlock(asmLines, description);
|
|
//console.log(machineCode);
|
|
if (machineCode===undefined) return; // There was an error - just leave and don't try to flash
|
|
var raw = "";
|
|
machineCode.forEach(function(short) {
|
|
var v = parseInt(short,16);
|
|
raw += String.fromCharCode(v&255,v>>8);
|
|
});
|
|
var base64 = base64_encode(raw);
|
|
code = code.substr(0,startIndex) +
|
|
'E.nativeCall(1, '+JSON.stringify(argSpec)+', atob('+JSON.stringify(base64)+'))'+
|
|
code.substr(endIndex);
|
|
asmBlockCount++;
|
|
|
|
// Break out
|
|
tok = undefined;
|
|
} else {
|
|
state = 0;
|
|
tok = lex.next();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (assembledCode!="") {
|
|
code = "var ASM_BASE=process.memory().stackEndAddress;\n"+
|
|
assembledCode+
|
|
code;
|
|
}
|
|
callback(code);
|
|
};
|
|
|
|
|
|
Espruino.Plugins.Assembler = {
|
|
init : init,
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Try and get any URLS that are from GitHub
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
function init() {
|
|
Espruino.addProcessor("getURL", getGitHub);
|
|
}
|
|
|
|
function getGitHub(data, callback) {
|
|
var match = data.url.match(/^https?:\/\/github.com\/([^\/]+)\/([^\/]+)\/blob\/([^\/]+)\/(.*)$/);
|
|
if (match) {
|
|
var git = {
|
|
owner : match[1],
|
|
repo : match[2],
|
|
branch : match[3],
|
|
path : match[4]
|
|
};
|
|
|
|
var url = "https://raw.githubusercontent.com/"+git.owner+"/"+git.repo+"/"+git.branch+"/"+git.path;
|
|
console.log("Found GitHub", JSON.stringify(git));
|
|
callback({url: url});
|
|
} else
|
|
callback(data); // no match - continue as normal
|
|
}
|
|
|
|
Espruino.Plugins.GetGitHub = {
|
|
init : init,
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Pretokenise code before it uploads
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
if (typeof acorn == "undefined") {
|
|
console.log("pretokenise: needs acorn, disabling.");
|
|
return;
|
|
}
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("PRETOKENISE", {
|
|
section : "Minification",
|
|
name : "Pretokenise code before upload (BETA)",
|
|
description : "All whitespace and comments are removed and all reserved words are converted to tokens before upload. This means a faster upload, less memory used, and increased performance (+10%) at the expense of code readability.",
|
|
type : "boolean",
|
|
defaultValue : false
|
|
});
|
|
|
|
// When code is sent to Espruino, search it for modules and add extra code required to load them
|
|
Espruino.addProcessor("transformForEspruino", function(code, callback) {
|
|
if (!Espruino.Config.PRETOKENISE) return callback(code);
|
|
pretokenise(code, callback);
|
|
});
|
|
// When code is sent to Espruino, search it for modules and add extra code required to load them
|
|
Espruino.addProcessor("transformModuleForEspruino", function(module, callback) {
|
|
if (!Espruino.Config.PRETOKENISE) return callback(module);
|
|
pretokenise(module.code, function(code) {
|
|
module.code = code;
|
|
callback(module);
|
|
});
|
|
});
|
|
}
|
|
|
|
|
|
var LEX_OPERATOR_START = 138;
|
|
var TOKENS = [// plundered from jslex.c
|
|
/* LEX_EQUAL : */ "==",
|
|
/* LEX_TYPEEQUAL : */ "===",
|
|
/* LEX_NEQUAL : */ "!=",
|
|
/* LEX_NTYPEEQUAL : */ "!==",
|
|
/* LEX_LEQUAL : */ "<=",
|
|
/* LEX_LSHIFT : */ "<<",
|
|
/* LEX_LSHIFTEQUAL : */ "<<=",
|
|
/* LEX_GEQUAL : */ ">=",
|
|
/* LEX_RSHIFT : */ ">>",
|
|
/* LEX_RSHIFTUNSIGNED */ ">>>",
|
|
/* LEX_RSHIFTEQUAL : */ ">>=",
|
|
/* LEX_RSHIFTUNSIGNEDEQUAL */ ">>>=",
|
|
/* LEX_PLUSEQUAL : */ "+=",
|
|
/* LEX_MINUSEQUAL : */ "-=",
|
|
/* LEX_PLUSPLUS : */ "++",
|
|
/* LEX_MINUSMINUS */ "--",
|
|
/* LEX_MULEQUAL : */ "*=",
|
|
/* LEX_DIVEQUAL : */ "/=",
|
|
/* LEX_MODEQUAL : */ "%=",
|
|
/* LEX_ANDEQUAL : */ "&=",
|
|
/* LEX_ANDAND : */ "&&",
|
|
/* LEX_OREQUAL : */ "|=",
|
|
/* LEX_OROR : */ "||",
|
|
/* LEX_XOREQUAL : */ "^=",
|
|
/* LEX_ARROW_FUNCTION */ "=>",
|
|
// reserved words
|
|
/*LEX_R_IF : */ "if",
|
|
/*LEX_R_ELSE : */ "else",
|
|
/*LEX_R_DO : */ "do",
|
|
/*LEX_R_WHILE : */ "while",
|
|
/*LEX_R_FOR : */ "for",
|
|
/*LEX_R_BREAK : */ "break",
|
|
/*LEX_R_CONTINUE */ "continue",
|
|
/*LEX_R_FUNCTION */ "function",
|
|
/*LEX_R_RETURN */ "return",
|
|
/*LEX_R_VAR : */ "var",
|
|
/*LEX_R_LET : */ "let",
|
|
/*LEX_R_CONST : */ "const",
|
|
/*LEX_R_THIS : */ "this",
|
|
/*LEX_R_THROW : */ "throw",
|
|
/*LEX_R_TRY : */ "try",
|
|
/*LEX_R_CATCH : */ "catch",
|
|
/*LEX_R_FINALLY : */ "finally",
|
|
/*LEX_R_TRUE : */ "true",
|
|
/*LEX_R_FALSE : */ "false",
|
|
/*LEX_R_NULL : */ "null",
|
|
/*LEX_R_UNDEFINED */ "undefined",
|
|
/*LEX_R_NEW : */ "new",
|
|
/*LEX_R_IN : */ "in",
|
|
/*LEX_R_INSTANCEOF */ "instanceof",
|
|
/*LEX_R_SWITCH */ "switch",
|
|
/*LEX_R_CASE */ "case",
|
|
/*LEX_R_DEFAULT */ "default",
|
|
/*LEX_R_DELETE */ "delete",
|
|
/*LEX_R_TYPEOF : */ "typeof",
|
|
/*LEX_R_VOID : */ "void",
|
|
/*LEX_R_DEBUGGER : */ "debugger",
|
|
/*LEX_R_CLASS : */ "class",
|
|
/*LEX_R_EXTENDS : */ "extends",
|
|
/*LEX_R_SUPER : */ "super",
|
|
/*LEX_R_STATIC : */ "static",
|
|
/*LEX_R_OF : */ "of"
|
|
];
|
|
|
|
|
|
function pretokenise(code, callback) {
|
|
var lex = (function() {
|
|
var t = acorn.tokenizer(code);
|
|
return { next : function() {
|
|
var tk = t.getToken();
|
|
if (tk.type.label=="eof") return undefined;
|
|
var tp = "?";
|
|
if (tk.type.label=="template" || tk.type.label=="string") tp="STRING";
|
|
if (tk.type.label=="num") tp="NUMBER";
|
|
if (tk.type.keyword || tk.type.label=="name") tp="ID";
|
|
if (tp=="?" && tk.start+1==tk.end) tp="CHAR";
|
|
return {
|
|
startIdx : tk.start,
|
|
endIdx : tk.end,
|
|
str : code.substring(tk.start, tk.end),
|
|
type : tp
|
|
};
|
|
}};
|
|
})();
|
|
var brackets = 0;
|
|
var resultCode = "";
|
|
var lastIdx = 0;
|
|
var lastTok = {str:""};
|
|
var tok = lex.next();
|
|
while (tok!==undefined) {
|
|
var previousString = code.substring(lastIdx, tok.startIdx);
|
|
var tokenString = code.substring(tok.startIdx, tok.endIdx);
|
|
var tokenId = LEX_OPERATOR_START + TOKENS.indexOf(tokenString);
|
|
if (tokenId<LEX_OPERATOR_START) tokenId=undefined;
|
|
//console.log("prev "+JSON.stringify(previousString)+" next "+tokenString);
|
|
|
|
if (tok.str=="(" || tok.str=="{" || tok.str=="[") brackets++;
|
|
// TODO: check for eg. two IDs/similar which can't be merged without a space
|
|
// preserve newlines at root scope to avoid us filling up the command buffer all at once
|
|
if (brackets==0 && previousString.indexOf("\n")>=0)
|
|
resultCode += "\n";
|
|
if (tok.str==")" || tok.str=="}" || tok.str=="]") brackets--;
|
|
// if we have a token for something, use that - else use the string
|
|
if (tokenId) {
|
|
//console.log(JSON.stringify(tok.str)+" => "+tokenId);
|
|
resultCode += String.fromCharCode(tokenId);
|
|
tok.type = "TOKENISED";
|
|
} else {
|
|
if ((tok.type=="ID" || tok.type=="NUMBER") &&
|
|
(lastTok.type=="ID" || lastTok.type=="NUMBER"))
|
|
resultCode += " ";
|
|
resultCode += tokenString;
|
|
}
|
|
// next
|
|
lastIdx = tok.endIdx;
|
|
lastTok = tok;
|
|
tok = lex.next();
|
|
}
|
|
callback(resultCode);
|
|
}
|
|
|
|
Espruino.Plugins.Pretokenise = {
|
|
init : init,
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk),
|
|
Victor Nakoryakov (victor@amperka.ru)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Wrap whole code in `onInit` function before send and save() it
|
|
after upload. Wrapping is necessary to avoid execution start
|
|
before save() is executed
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("SAVE_ON_SEND", {
|
|
section : "Communications",
|
|
name : "Save on Send",
|
|
descriptionHTML : 'How should code be uploaded? See <a href="http://www.espruino.com/Saving" target="_blank">espruino.com/Saving</a> for more information.<br>'+
|
|
"<b>NOTE:</b> Avoid 'Direct to flash, even after <code>reset()</code>' for normal development - it can make it hard to recover if your code crashes the device.",
|
|
type : {
|
|
0: "To RAM (default) - execute code while uploading. Use 'save()' to save a RAM image to Flash",
|
|
1: "Direct to Flash (execute code at boot)",
|
|
2: "Direct to Flash (execute code at boot, even after 'reset()') - USE WITH CARE",
|
|
3: "To Storage File (see 'File in Storage to send to')",
|
|
},
|
|
defaultValue : 0
|
|
});
|
|
Espruino.Core.Config.add("SAVE_STORAGE_FILE", {
|
|
section : "Communications",
|
|
name : "Send to File in Storage",
|
|
descriptionHTML : "If <code>Save on Send</code> is set to <code>To Storage File</code>, this is the name of the file to write to.",
|
|
type : "string",
|
|
defaultValue : "myapp"
|
|
});
|
|
Espruino.Core.Config.add("LOAD_STORAGE_FILE", {
|
|
section : "Communications",
|
|
name : "Load after saving",
|
|
descriptionHTML : "This applies only if saving to Flash (not RAM)",
|
|
type : {
|
|
0: "Don't load",
|
|
1: "Load default application",
|
|
2: "Load the Storage File just written to"
|
|
},
|
|
defaultValue : 2
|
|
});
|
|
Espruino.addProcessor("transformForEspruino", function(code, callback) {
|
|
wrap(code, callback);
|
|
});
|
|
}
|
|
|
|
function wrap(code, callback) {
|
|
var isFlashPersistent = Espruino.Config.SAVE_ON_SEND == 2;
|
|
var isStorageUpload = Espruino.Config.SAVE_ON_SEND == 3;
|
|
var isFlashUpload = Espruino.Config.SAVE_ON_SEND == 1 || isFlashPersistent || isStorageUpload;
|
|
if (!isFlashUpload) return callback(code);
|
|
|
|
// Check environment vars
|
|
var hasStorage = false;
|
|
var ENV = Espruino.Core.Env.getData();
|
|
if (ENV &&
|
|
ENV.VERSION_MAJOR &&
|
|
ENV.VERSION_MINOR!==undefined) {
|
|
if (ENV.VERSION_MAJOR>1 ||
|
|
ENV.VERSION_MINOR>=96) {
|
|
hasStorage = true;
|
|
}
|
|
}
|
|
|
|
//
|
|
console.log("Uploading "+code.length+" bytes to flash");
|
|
if (!hasStorage) { // old style
|
|
if (isStorageUpload) {
|
|
Espruino.Core.Notifications.error("You have pre-1v96 firmware - unable to upload to Storage");
|
|
code = "";
|
|
} else {
|
|
Espruino.Core.Notifications.error("You have pre-1v96 firmware. Upload size is limited by available RAM");
|
|
code = "E.setBootCode("+JSON.stringify(code)+(isFlashPersistent?",true":"")+");load()\n";
|
|
}
|
|
} else { // new style
|
|
var filename;
|
|
if (isStorageUpload)
|
|
filename = Espruino.Config.SAVE_STORAGE_FILE;
|
|
else
|
|
filename = isFlashPersistent ? ".bootrst" : ".bootcde";
|
|
if (!filename || filename.length>28) {
|
|
Espruino.Core.Notifications.error("Invalid Storage file name "+JSON.stringify(filename));
|
|
code = "";
|
|
} else {
|
|
var CHUNKSIZE = 1024;
|
|
var newCode = [];
|
|
var len = code.length;
|
|
newCode.push('require("Storage").write("'+filename+'",'+JSON.stringify(code.substr(0,CHUNKSIZE))+',0,'+len+');');
|
|
for (var i=CHUNKSIZE;i<len;i+=CHUNKSIZE)
|
|
newCode.push('require("Storage").write("'+filename+'",'+JSON.stringify(code.substr(i,CHUNKSIZE))+','+i+');');
|
|
code = newCode.join("\n");
|
|
if (Espruino.Config.LOAD_STORAGE_FILE==2 && isStorageUpload)
|
|
code += "\nload("+JSON.stringify(filename)+")\n";
|
|
else if (Espruino.Config.LOAD_STORAGE_FILE!=0)
|
|
code += "\nload()\n";
|
|
}
|
|
}
|
|
callback(code);
|
|
}
|
|
|
|
Espruino.Plugins.SaveOnSend = {
|
|
init : init,
|
|
};
|
|
}());
|
|
/**
|
|
Copyright 2014 Gordon Williams (gw@pur3.co.uk)
|
|
|
|
This Source Code is subject to the terms of the Mozilla Public
|
|
License, v2.0. If a copy of the MPL was not distributed with this
|
|
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
------------------------------------------------------------------
|
|
Ability to set the current time in Espruino
|
|
------------------------------------------------------------------
|
|
**/
|
|
"use strict";
|
|
(function(){
|
|
|
|
function init() {
|
|
Espruino.Core.Config.add("SET_TIME_ON_WRITE", {
|
|
section : "Communications",
|
|
name : "Set Current Time",
|
|
description : "When sending code, set Espruino's clock to the current time",
|
|
type : "boolean",
|
|
defaultValue : true,
|
|
onChange : function(newValue) { }
|
|
});
|
|
|
|
// When code is sent to Espruino, append code to set the current time
|
|
Espruino.addProcessor("transformForEspruino", function(code, callback) {
|
|
if (Espruino.Config.SET_TIME_ON_WRITE) {
|
|
var time = new Date();
|
|
code = "setTime("+(time.getTime()/1000)+");E.setTimeZone("+(-time.getTimezoneOffset()/60)+")\n"+code;
|
|
}
|
|
callback(code);
|
|
});
|
|
}
|
|
|
|
Espruino.Plugins.SetTime = {
|
|
init : init,
|
|
};
|
|
}());
|
|
Espruino.transform = function(code, options) {
|
|
return new Promise(function(resolve,reject) {
|
|
Object.keys(options).forEach(function(key) {
|
|
if (key==key.toUpperCase())
|
|
Espruino.Config[key] = options[key];
|
|
});
|
|
if (options.builtinModules) {
|
|
var d = Espruino.Core.Env.getData();
|
|
d.MODULES = options.builtinModules;
|
|
}
|
|
|
|
Espruino.callProcessor("transformForEspruino", code, resolve);
|
|
});
|
|
};
|
|
|
|
if ("undefined"==typeof document) Espruino.init();
|
|
if ("undefined"!=typeof module)
|
|
module.exports = Espruino;
|
|
|