| Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/bootstrapper.h" |
| 6 | #include "src/code-stubs.h" |
| 7 | #include "src/compiler/common-operator.h" |
| 8 | #include "src/compiler/graph.h" |
| 9 | #include "src/compiler/js-graph.h" |
| 10 | #include "src/compiler/js-operator.h" |
| 11 | #include "src/compiler/linkage.h" |
| 12 | #include "src/compiler/machine-operator.h" |
| 13 | #include "src/compiler/pipeline.h" |
| 14 | #include "src/parsing/parser.h" |
| 15 | #include "test/cctest/compiler/function-tester.h" |
| 16 | |
| 17 | namespace v8 { |
| 18 | namespace internal { |
| 19 | namespace compiler { |
| 20 | |
| 21 | |
| 22 | TEST(RunStringLengthStub) { |
| 23 | HandleAndZoneScope scope; |
| 24 | Isolate* isolate = scope.main_isolate(); |
| 25 | Zone* zone = scope.main_zone(); |
| 26 | |
| 27 | // Create code and an accompanying descriptor. |
| 28 | StringLengthStub stub(isolate); |
| 29 | Handle<Code> code = stub.GenerateCode(); |
| 30 | CompilationInfo info(&stub, isolate, zone); |
| 31 | CallDescriptor* descriptor = Linkage::ComputeIncoming(zone, &info); |
| 32 | |
| 33 | // Create a function to call the code using the descriptor. |
| 34 | Graph graph(zone); |
| 35 | CommonOperatorBuilder common(zone); |
| 36 | // FunctionTester (ab)uses a 4-argument function |
| 37 | Node* start = graph.NewNode(common.Start(6)); |
| 38 | // Parameter 0 is the receiver |
| 39 | Node* receiverParam = graph.NewNode(common.Parameter(1), start); |
| 40 | Node* nameParam = graph.NewNode(common.Parameter(2), start); |
| 41 | Node* slotParam = graph.NewNode(common.Parameter(3), start); |
| 42 | Node* vectorParam = graph.NewNode(common.Parameter(4), start); |
| 43 | Node* theCode = graph.NewNode(common.HeapConstant(code)); |
| 44 | Node* dummyContext = graph.NewNode(common.NumberConstant(0.0)); |
| 45 | Node* call = |
| 46 | graph.NewNode(common.Call(descriptor), theCode, receiverParam, nameParam, |
| 47 | slotParam, vectorParam, dummyContext, start, start); |
| 48 | Node* ret = graph.NewNode(common.Return(), call, call, start); |
| 49 | Node* end = graph.NewNode(common.End(1), ret); |
| 50 | graph.SetStart(start); |
| 51 | graph.SetEnd(end); |
| 52 | FunctionTester ft(&graph, 4); |
| 53 | |
| 54 | // Actuall call through to the stub, verifying its result. |
| 55 | const char* testString = "Und das Lamm schrie HURZ!"; |
| 56 | Handle<JSReceiver> receiverArg = |
| 57 | Object::ToObject(isolate, ft.Val(testString)).ToHandleChecked(); |
| 58 | Handle<String> nameArg = ft.Val("length"); |
| 59 | Handle<Object> slot = ft.Val(0.0); |
| 60 | Handle<Object> vector = ft.Val(0.0); |
| 61 | Handle<Object> result = |
| 62 | ft.Call(receiverArg, nameArg, slot, vector).ToHandleChecked(); |
| 63 | CHECK_EQ(static_cast<int>(strlen(testString)), Smi::cast(*result)->value()); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | } // namespace compiler |
| 68 | } // namespace internal |
| 69 | } // namespace v8 |