82b8f1729d
Document JSON not guaranteeing key order.
40 lines
2.1 KiB
XML
40 lines
2.1 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="JSONParseResult" inherits="Reference" category="Core" version="3.0-stable">
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<brief_description>
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Data class wrapper for decoded JSON.
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</brief_description>
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<description>
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Returned by [method JSON.parse], [code]JSONParseResult[/code] contains decoded JSON or error information if JSON source not successfully parsed. You can check if JSON source was successfully parsed with [code]if json_result.error == 0[/code].
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</description>
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<tutorials>
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</tutorials>
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<demos>
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</demos>
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<methods>
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</methods>
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<members>
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<member name="error" type="int" setter="set_error" getter="get_error" enum="Error">
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The error type if JSON source was not successfully parsed. See [@GlobalScope] ERR_* constants.
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</member>
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<member name="error_line" type="int" setter="set_error_line" getter="get_error_line">
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The line number where the error occurred if JSON source was not successfully parsed.
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</member>
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<member name="error_string" type="String" setter="set_error_string" getter="get_error_string">
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The error message if JSON source was not successfully parsed. See [@GlobalScope] ERR_* constants.
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</member>
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<member name="result" type="Variant" setter="set_result" getter="get_result">
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A [Variant] containing the parsed JSON. Use typeof() to check if it is what you expect. For example, if JSON source starts with curly braces ([code]{}[/code]) a [Dictionary] will be returned, if JSON source starts with braces ([code][][/code]) an [Array] will be returned.
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[i]Be aware that the JSON specification does not define integer or float types, but only a number type. Therefore, parsing a JSON text will convert all numerical values to float types.
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Note that JSON objects do not preserve key order like Godot dictionaries, thus you should not rely on keys being in a certain order if a dictionary is constructed from JSON. In contrast, JSON arrays retain the order of their elements:[/i]
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[codeblock]
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p = JSON.parse('["hello", "world", "!"]')
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if typeof(p) == TYPE_ARRAY:
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print(p[0]) # prints 'hello'
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else:
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print("unexpected results")
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[/codeblock]
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</member>
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</members>
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<constants>
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</constants>
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</class>
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