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9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
// Copyright 2022 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_COMMON_CALL_TESTER_H_
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#define V8_COMMON_CALL_TESTER_H_
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#include "src/execution/simulator.h"
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#include "src/handles/handles.h"
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#include "src/objects/code.h"
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#include "test/common/c-signature.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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template <typename R>
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class CallHelper {
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public:
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explicit CallHelper(Isolate* isolate, MachineSignature* csig)
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: csig_(csig), isolate_(isolate) {
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USE(isolate_);
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}
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virtual ~CallHelper() = default;
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template <typename... Params>
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R Call(Params... args) {
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CSignature::VerifyParams<Params...>(csig_);
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Address entry = Generate();
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auto fn = GeneratedCode<R, Params...>::FromAddress(isolate_, entry);
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return fn.Call(args...);
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}
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protected:
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MachineSignature* csig_;
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virtual Address Generate() = 0;
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private:
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Isolate* isolate_;
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};
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template <>
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template <typename... Params>
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Tagged<Object> CallHelper<Tagged<Object>>::Call(Params... args) {
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CSignature::VerifyParams<Params...>(csig_);
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Address entry = Generate();
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auto fn = GeneratedCode<Address, Params...>::FromAddress(isolate_, entry);
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return Tagged<Object>(fn.Call(args...));
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}
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// A call helper that calls the given code object assuming C calling convention.
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template <typename T>
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class CodeRunner : public CallHelper<T> {
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public:
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CodeRunner(Isolate* isolate, Handle<InstructionStream> istream,
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MachineSignature* csig)
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: CallHelper<T>(isolate, csig), istream_(istream) {}
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CodeRunner(Isolate* isolate, DirectHandle<Code> code, MachineSignature* csig)
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: CallHelper<T>(isolate, csig),
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istream_(code->instruction_stream(), isolate) {}
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~CodeRunner() override = default;
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Address Generate() override { return istream_->instruction_start(); }
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private:
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Handle<InstructionStream> istream_;
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};
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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#endif // V8_COMMON_CALL_TESTER_H_
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