1 files changed, 211 insertions, 0 deletions
diff --git a/deps/v8/test/cctest/compiler/function-tester.cc b/deps/v8/test/cctest/compiler/function-tester.cc
new file mode 100644
index 0000000000..2da2dc14aa
--- /dev/null
+++ b/deps/v8/test/cctest/compiler/function-tester.cc
@@ -0,0 +1,211 @@
+// 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/ast/ast-numbering.h"
+#include "src/compilation-info.h"
+#include "src/compiler.h"
+#include "src/compiler/linkage.h"
+#include "src/compiler/pipeline.h"
+#include "src/execution.h"
+#include "src/full-codegen/full-codegen.h"
+#include "src/handles.h"
+#include "src/objects-inl.h"
+#include "src/parsing/parse-info.h"
+#include "src/parsing/parser.h"
+#include "test/cctest/cctest.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+FunctionTester::FunctionTester(const char* source, uint32_t flags)
+    : isolate(main_isolate()),
+      function((FLAG_allow_natives_syntax = true, NewFunction(source))),
+      flags_(flags) {
+  Compile(function);
+  const uint32_t supported_flags = CompilationInfo::kNativeContextSpecializing |
+                                   CompilationInfo::kInliningEnabled;
+  CHECK_EQ(0u, flags_ & ~supported_flags);
+}
+
+FunctionTester::FunctionTester(Graph* graph, int param_count)
+    : isolate(main_isolate()),
+      function(NewFunction(BuildFunction(param_count).c_str())),
+      flags_(0) {
+  CompileGraph(graph);
+}
+
+FunctionTester::FunctionTester(Handle<Code> code, int param_count)
+    : isolate(main_isolate()),
+      function((FLAG_allow_natives_syntax = true,
+                NewFunction(BuildFunction(param_count).c_str()))),
+      flags_(0) {
+  Compile(function);
+  function->ReplaceCode(*code);
+}
+
+FunctionTester::FunctionTester(const CallInterfaceDescriptor& descriptor,
+                               Handle<Code> code)
+    : FunctionTester(code, descriptor.GetParameterCount()) {}
+
+MaybeHandle<Object> FunctionTester::Call() {
+  return Execution::Call(isolate, function, undefined(), 0, nullptr);
+}
+
+MaybeHandle<Object> FunctionTester::Call(Handle<Object> a) {
+  Handle<Object> args[] = {a};
+  return Execution::Call(isolate, function, undefined(), 1, args);
+}
+
+MaybeHandle<Object> FunctionTester::Call(Handle<Object> a, Handle<Object> b) {
+  Handle<Object> args[] = {a, b};
+  return Execution::Call(isolate, function, undefined(), 2, args);
+}
+
+MaybeHandle<Object> FunctionTester::Call(Handle<Object> a, Handle<Object> b,
+                                         Handle<Object> c) {
+  Handle<Object> args[] = {a, b, c};
+  return Execution::Call(isolate, function, undefined(), 3, args);
+}
+
+MaybeHandle<Object> FunctionTester::Call(Handle<Object> a, Handle<Object> b,
+                                         Handle<Object> c, Handle<Object> d) {
+  Handle<Object> args[] = {a, b, c, d};
+  return Execution::Call(isolate, function, undefined(), 4, args);
+}
+
+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 = NULL;
+  {  // because of the implicit handle scope of FunctionTester.
+    FunctionTester f(graph, param_count);
+    p = *f.function;
+  }
+  return Handle<JSFunction>(p);  // allocated in outer handle scope.
+}
+
+Handle<JSFunction> FunctionTester::Compile(Handle<JSFunction> function) {
+  Zone zone(function->GetIsolate()->allocator());
+  ParseInfo parse_info(&zone, function);
+  CompilationInfo info(&parse_info, function);
+  info.MarkAsDeoptimizationEnabled();
+
+  if (!FLAG_turbo_from_bytecode) {
+    CHECK(Parser::ParseStatic(info.parse_info()));
+  }
+  info.SetOptimizing();
+  if (flags_ & CompilationInfo::kNativeContextSpecializing) {
+    info.MarkAsNativeContextSpecializing();
+  }
+  if (flags_ & CompilationInfo::kInliningEnabled) {
+    info.MarkAsInliningEnabled();
+  }
+  if (FLAG_turbo_from_bytecode) {
+    CHECK(Compiler::EnsureBytecode(&info));
+    info.MarkAsOptimizeFromBytecode();
+  } else {
+    CHECK(Compiler::Analyze(info.parse_info()));
+    CHECK(Compiler::EnsureDeoptimizationSupport(&info));
+  }
+  JSFunction::EnsureLiterals(function);
+
+  Handle<Code> code = Pipeline::GenerateCodeForTesting(&info);
+  CHECK(!code.is_null());
+  info.dependencies()->Commit(code);
+  info.context()->native_context()->AddOptimizedCode(*code);
+  function->ReplaceCode(*code);
+  return function;
+}
+
+// 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) {
+  Zone zone(function->GetIsolate()->allocator());
+  ParseInfo parse_info(&zone, function);
+  CompilationInfo info(&parse_info, function);
+
+  CHECK(Parser::ParseStatic(info.parse_info()));
+  info.SetOptimizing();
+
+  Handle<Code> code = Pipeline::GenerateCodeForTesting(&info, graph);
+  CHECK(!code.is_null());
+  function->ReplaceCode(*code);
+  return function;
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8