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LibJS: Add the CreateMappedArgumentsObject abstract operation
This patch adds a new ArgumentsObject class to represent what the spec calls "Arguments Exotic Objects" These are constructed by the new CreateMappedArgumentsObject when the `arguments` identifier is resolved in a callee context. The implementation is incomplete and doesn't yet support mapping of the parameter variables to the indexed properties of `arguments`.
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8 changed files with 95 additions and 10 deletions
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@ -108,6 +108,7 @@ public:
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virtual bool is_global_object() const { return false; }
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virtual bool is_proxy_object() const { return false; }
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virtual bool is_native_function() const { return false; }
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virtual bool is_ordinary_function_object() const { return false; }
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// B.3.7 The [[IsHTMLDDA]] Internal Slot, https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
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virtual bool is_htmldda() const { return false; }
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