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https://github.com/LadybirdBrowser/ladybird.git
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56e09695e0
Replace 20 separate Put instructions (5 PutKinds x 4 forms) with 4 unified instructions (PutById, PutByIdWithThis, PutByValue, PutByValueWithThis), each carrying a PutKind field at runtime instead of being a separate opcode. This reduces the number of handler entry points in the dispatch loop and eliminates template instantiations of put_by_property_key and put_by_value that were being duplicated 5x each when inlined by LTO.
39 lines
1,010 B
C++
39 lines
1,010 B
C++
/*
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* Copyright (c) 2025, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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namespace JS::Bytecode {
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// PutKind indicates how a property is being set.
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// `Normal` is a normal `o.foo = x` or `o[foo] = x` operation.
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// The others are used for object expressions.
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#define JS_ENUMERATE_PUT_KINDS(X) \
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X(Normal) \
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X(Getter) \
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X(Setter) \
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X(Prototype) \
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X(Own) // Always sets an own property, never calls a setter.
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enum class PutKind {
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#define __JS_ENUMERATE_PUT_KIND(name) name,
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JS_ENUMERATE_PUT_KINDS(__JS_ENUMERATE_PUT_KIND)
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#undef __JS_ENUMERATE_PUT_KIND
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};
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inline char const* put_kind_to_string(PutKind kind)
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{
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switch (kind) {
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#define __JS_PUT_KIND_TO_STRING(name) \
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case PutKind::name: \
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return #name;
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JS_ENUMERATE_PUT_KINDS(__JS_PUT_KIND_TO_STRING)
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#undef __JS_PUT_KIND_TO_STRING
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}
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VERIFY_NOT_REACHED();
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}
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}
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