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LibJS: Add the CreateMappedArgumentsObject abstract operation

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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`.
This commit is contained in:
Andreas Kling 2021-06-28 13:26:01 +02:00
parent a55cf08ef9
commit 2d4eb40f59
8 changed files with 95 additions and 10 deletions
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Userland/Libraries/LibJS/CMakeLists.txt
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@ -26,6 +26,7 @@ set(SOURCES
Runtime/AggregateError.cpp
Runtime/AggregateErrorConstructor.cpp
Runtime/AggregateErrorPrototype.cpp
Runtime/ArgumentsObject.cpp
Runtime/Array.cpp
Runtime/ArrayBuffer.cpp
Runtime/ArrayBufferConstructor.cpp