forked from Dependencies/lua-json
Improved error messages when encoding invalid table
parent
a674e3ec0f
commit
9fbfcde195
12
json.lua
12
json.lua
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@ -54,14 +54,13 @@ local function encode_table(val, stack)
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-- Treat as array -- check keys are valid and it is not sparse
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-- Treat as array -- check keys are valid and it is not sparse
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local n = 0
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local n = 0
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for k in pairs(val) do
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for k in pairs(val) do
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local t = type(k)
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if type(k) ~= "number" then
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if t ~= "number" then
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error("invalid table: mixed key types")
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error("unexpected key of type '" .. t .. "' in array")
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end
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end
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n = n + 1
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n = n + 1
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end
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end
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if n ~= #val then
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if n ~= #val then
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error("unexpected sparse array")
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error("invalid table: sparse array")
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end
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end
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-- Encode
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-- Encode
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for i, v in ipairs(val) do
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for i, v in ipairs(val) do
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@ -73,9 +72,8 @@ local function encode_table(val, stack)
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else
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else
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-- Treat as an object
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-- Treat as an object
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for k, v in pairs(val) do
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for k, v in pairs(val) do
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local t = type(k)
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if type(k) ~= "string" then
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if t ~= "string" then
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error("invalid table: mixed key types")
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error("unexpected key of type '" .. t .. "' in object")
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end
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end
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table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
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table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
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end
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end
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