5dfe145c03
Cache EnvironmentShape on SharedFunctionInstanceData after the first function environment creates its statically known bindings. Install the cached shape before later calls create bindings so those environments avoid building their own name vector and lookup map. Let DeclarativeEnvironment keep a local overlay for eval-created bindings, and keep the packed flag mirror per environment while the asm interpreter still reads flags directly from the environment. Add runtime coverage for repeated calls with an eval-created binding.
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
/*
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* Copyright (c) 2025, Luke Wilde <luke@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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#include <LibJS/Runtime/NativeFunction.h>
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#include <LibJS/Runtime/SharedFunctionInstanceData.h>
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namespace JS {
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class NativeJavaScriptBackedFunction final : public NativeFunction {
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JS_OBJECT(NativeJavaScriptBackedFunction, NativeFunction);
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GC_DECLARE_ALLOCATOR(NativeJavaScriptBackedFunction);
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public:
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static GC::Ref<NativeJavaScriptBackedFunction> create(Realm&, GC::Ref<SharedFunctionInstanceData>, PropertyKey const& name, i32 length);
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virtual ~NativeJavaScriptBackedFunction() override = default;
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virtual void visit_edges(Visitor&) override;
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virtual void get_stack_frame_info(size_t& registers_and_locals_count, ReadonlySpan<Value>& constants, size_t& argument_count) override;
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virtual ThrowCompletionOr<Value> call() override;
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Bytecode::Executable& bytecode_executable();
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SharedFunctionInstanceData& shared_data() { return *m_shared_function_instance_data; }
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SharedFunctionInstanceData const& shared_data() const { return *m_shared_function_instance_data; }
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FunctionKind kind() const;
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ThisMode this_mode() const;
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virtual bool function_environment_needed() const override;
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virtual size_t function_environment_bindings_count() const override;
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virtual bool is_strict_mode() const override;
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private:
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explicit NativeJavaScriptBackedFunction(GC::Ref<SharedFunctionInstanceData> shared_function_instance_data, Object& prototype);
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GC::Ref<SharedFunctionInstanceData> m_shared_function_instance_data;
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};
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}
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