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// Copyright 2015 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 "src/bootstrapper.h"
#include "src/code-stubs.h"
#include "src/compilation-info.h"
#include "src/compiler/common-operator.h"
#include "src/compiler/graph.h"
#include "src/compiler/js-graph.h"
#include "src/compiler/js-operator.h"
#include "src/compiler/linkage.h"
#include "src/compiler/machine-operator.h"
#include "src/compiler/pipeline.h"
#include "test/cctest/compiler/function-tester.h"
namespace v8 {
namespace internal {
namespace compiler {
TEST(RunStringLengthStub) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
// Create code and an accompanying descriptor.
StringLengthStub stub(isolate);
Handle<Code> code = stub.GenerateCode();
CompilationInfo info(ArrayVector("test"), isolate, zone,
Code::ComputeFlags(Code::HANDLER));
CallInterfaceDescriptor interface_descriptor =
stub.GetCallInterfaceDescriptor();
CallDescriptor* descriptor = Linkage::GetStubCallDescriptor(
isolate, zone, interface_descriptor, stub.GetStackParameterCount(),
CallDescriptor::kNoFlags, Operator::kNoProperties);
// Create a function to call the code using the descriptor.
Graph graph(zone);
CommonOperatorBuilder common(zone);
// FunctionTester (ab)uses a 4-argument function
Node* start = graph.NewNode(common.Start(6));
// Parameter 0 is the receiver
Node* receiverParam = graph.NewNode(common.Parameter(1), start);
Node* nameParam = graph.NewNode(common.Parameter(2), start);
Node* slotParam = graph.NewNode(common.Parameter(3), start);
Node* vectorParam = graph.NewNode(common.Parameter(4), start);
Node* theCode = graph.NewNode(common.HeapConstant(code));
Node* dummyContext = graph.NewNode(common.NumberConstant(0.0));
Node* call =
graph.NewNode(common.Call(descriptor), theCode, receiverParam, nameParam,
slotParam, vectorParam, dummyContext, start, start);
Node* ret = graph.NewNode(common.Return(), call, call, start);
Node* end = graph.NewNode(common.End(1), ret);
graph.SetStart(start);
graph.SetEnd(end);
FunctionTester ft(&graph, 4);
// Actuall call through to the stub, verifying its result.
const char* testString = "Und das Lamm schrie HURZ!";
Handle<JSReceiver> receiverArg =
Object::ToObject(isolate, ft.Val(testString)).ToHandleChecked();
Handle<String> nameArg = ft.Val("length");
Handle<Object> slot = ft.Val(0.0);
Handle<Object> vector = ft.Val(0.0);
Handle<Object> result =
ft.Call(receiverArg, nameArg, slot, vector).ToHandleChecked();
CHECK_EQ(static_cast<int>(strlen(testString)), Smi::cast(*result)->value());
}
} // namespace compiler
} // namespace internal
} // namespace v8
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