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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "test/cctest/compiler/function-tester.h"
#include "src/api/api-inl.h"
#include "src/codegen/assembler.h"
#include "src/codegen/optimized-compilation-info.h"
#include "src/compiler/linkage.h"
#include "src/compiler/pipeline.h"
#include "src/execution/execution.h"
#include "src/handles/handles.h"
#include "src/objects/objects-inl.h"
#include "src/parsing/parse-info.h"
#include "test/cctest/cctest.h"
namespace v8 {
namespace internal {
namespace compiler {
FunctionTester::FunctionTester(const char* source, uint32_t flags)
: isolate(main_isolate()),
canonical(isolate),
function((FLAG_allow_natives_syntax = true, NewFunction(source))),
flags_(flags) {
Compile(function);
const uint32_t supported_flags = OptimizedCompilationInfo::kInlining;
CHECK_EQ(0u, flags_ & ~supported_flags);
}
FunctionTester::FunctionTester(Graph* graph, int param_count)
: isolate(main_isolate()),
canonical(isolate),
function(NewFunction(BuildFunction(param_count).c_str())),
flags_(0) {
CompileGraph(graph);
}
FunctionTester::FunctionTester(Handle<Code> code, int param_count)
: isolate(main_isolate()),
canonical(isolate),
function((FLAG_allow_natives_syntax = true,
NewFunction(BuildFunction(param_count).c_str()))),
flags_(0) {
CHECK(!code.is_null());
Compile(function);
function->set_code(*code);
}
FunctionTester::FunctionTester(Handle<Code> code) : FunctionTester(code, 0) {}
void FunctionTester::CheckThrows(Handle<Object> a) {
TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
MaybeHandle<Object> no_result = Call(a);
CHECK(isolate->has_pending_exception());
CHECK(try_catch.HasCaught());
CHECK(no_result.is_null());
isolate->OptionalRescheduleException(true);
}
void FunctionTester::CheckThrows(Handle<Object> a, Handle<Object> b) {
TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
MaybeHandle<Object> no_result = Call(a, b);
CHECK(isolate->has_pending_exception());
CHECK(try_catch.HasCaught());
CHECK(no_result.is_null());
isolate->OptionalRescheduleException(true);
}
v8::Local<v8::Message> FunctionTester::CheckThrowsReturnMessage(
Handle<Object> a, Handle<Object> b) {
TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
MaybeHandle<Object> no_result = Call(a, b);
CHECK(isolate->has_pending_exception());
CHECK(try_catch.HasCaught());
CHECK(no_result.is_null());
isolate->OptionalRescheduleException(true);
CHECK(!try_catch.Message().IsEmpty());
return try_catch.Message();
}
void FunctionTester::CheckCall(Handle<Object> expected, Handle<Object> a,
Handle<Object> b, Handle<Object> c,
Handle<Object> d) {
Handle<Object> result = Call(a, b, c, d).ToHandleChecked();
CHECK(expected->SameValue(*result));
}
Handle<JSFunction> FunctionTester::NewFunction(const char* source) {
return Handle<JSFunction>::cast(v8::Utils::OpenHandle(
*v8::Local<v8::Function>::Cast(CompileRun(source))));
}
Handle<JSObject> FunctionTester::NewObject(const char* source) {
return Handle<JSObject>::cast(
v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(CompileRun(source))));
}
Handle<String> FunctionTester::Val(const char* string) {
return isolate->factory()->InternalizeUtf8String(string);
}
Handle<Object> FunctionTester::Val(double value) {
return isolate->factory()->NewNumber(value);
}
Handle<Object> FunctionTester::infinity() {
return isolate->factory()->infinity_value();
}
Handle<Object> FunctionTester::minus_infinity() { return Val(-V8_INFINITY); }
Handle<Object> FunctionTester::nan() { return isolate->factory()->nan_value(); }
Handle<Object> FunctionTester::undefined() {
return isolate->factory()->undefined_value();
}
Handle<Object> FunctionTester::null() {
return isolate->factory()->null_value();
}
Handle<Object> FunctionTester::true_value() {
return isolate->factory()->true_value();
}
Handle<Object> FunctionTester::false_value() {
return isolate->factory()->false_value();
}
Handle<JSFunction> FunctionTester::ForMachineGraph(Graph* graph,
int param_count) {
JSFunction p;
{ // because of the implicit handle scope of FunctionTester.
FunctionTester f(graph, param_count);
p = *f.function;
}
return Handle<JSFunction>(
p, p.GetIsolate()); // allocated in outer handle scope.
}
Handle<JSFunction> FunctionTester::Compile(Handle<JSFunction> function) {
Zone zone(isolate->allocator(), ZONE_NAME);
return Optimize(function, &zone, isolate, flags_);
}
// Compile the given machine graph instead of the source of the function
// and replace the JSFunction's code with the result.
Handle<JSFunction> FunctionTester::CompileGraph(Graph* graph) {
Handle<SharedFunctionInfo> shared(function->shared(), isolate);
Zone zone(isolate->allocator(), ZONE_NAME);
OptimizedCompilationInfo info(&zone, isolate, shared, function,
CodeKind::OPTIMIZED_FUNCTION);
auto call_descriptor = Linkage::ComputeIncoming(&zone, &info);
Handle<Code> code =
Pipeline::GenerateCodeForTesting(&info, isolate, call_descriptor, graph,
AssemblerOptions::Default(isolate))
.ToHandleChecked();
function->set_code(*code);
return function;
}
} // namespace compiler
} // namespace internal
} // namespace v8
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