| // 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/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 "src/parsing/parser.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 |