runtime/vm/compiler_test.cc - sdk - Git at Google

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.

 #include "vm/compiler/jit/compiler.h"
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/code_patcher.h"
 #include "vm/dart_api_impl.h"
 #include "vm/heap/safepoint.h"
 #include "vm/kernel_isolate.h"
 #include "vm/object.h"
 #include "vm/symbols.h"
 #include "vm/thread_pool.h"
 #include "vm/unit_test.h"

 namespace dart {

 ISOLATE_UNIT_TEST_CASE(CompileScript) {
   const char* kScriptChars =
       "class A {\n"
       "  static foo() { return 42; }\n"
       "}\n";
   String& url = String::Handle(String::New("dart-test:CompileScript"));
   String& source = String::Handle(String::New(kScriptChars));
   Script& script =
       Script::Handle(Script::New(url, source, RawScript::kScriptTag));
   Library& lib = Library::Handle(Library::CoreLibrary());
   EXPECT(CompilerTest::TestCompileScript(lib, script));
 }

 ISOLATE_UNIT_TEST_CASE(CompileFunction) {
   const char* kScriptChars =
       "class A {\n"
       "  static foo() { return 42; }\n"
       "  static moo() {\n"
       "    // A.foo();\n"
       "  }\n"
       "}\n";
   String& url = String::Handle(String::New("dart-test:CompileFunction"));
   String& source = String::Handle(String::New(kScriptChars));
   Script& script =
       Script::Handle(Script::New(url, source, RawScript::kScriptTag));
   Library& lib = Library::Handle(Library::CoreLibrary());
   EXPECT(CompilerTest::TestCompileScript(lib, script));
   EXPECT(ClassFinalizer::ProcessPendingClasses());
   Class& cls =
       Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "A"))));
   EXPECT(!cls.IsNull());
   String& function_foo_name = String::Handle(String::New("foo"));
   Function& function_foo =
       Function::Handle(cls.LookupStaticFunction(function_foo_name));
   EXPECT(!function_foo.IsNull());
   String& function_source = String::Handle(function_foo.GetSource());
   EXPECT_STREQ("static foo() { return 42; }", function_source.ToCString());
   EXPECT(CompilerTest::TestCompileFunction(function_foo));
   EXPECT(function_foo.HasCode());

   String& function_moo_name = String::Handle(String::New("moo"));
   Function& function_moo =
       Function::Handle(cls.LookupStaticFunction(function_moo_name));
   EXPECT(!function_moo.IsNull());

   EXPECT(CompilerTest::TestCompileFunction(function_moo));
   EXPECT(function_moo.HasCode());
   function_source = function_moo.GetSource();
   EXPECT_STREQ("static moo() {\n    // A.foo();\n  }",
                function_source.ToCString());
 }

 ISOLATE_UNIT_TEST_CASE(CompileFunctionOnHelperThread) {
   // Create a simple function and compile it without optimization.
   const char* kScriptChars =
       "class A {\n"
       "  static foo() { return 42; }\n"
       "}\n";
   String& url =
       String::Handle(String::New("dart-test:CompileFunctionOnHelperThread"));
   String& source = String::Handle(String::New(kScriptChars));
   Script& script =
       Script::Handle(Script::New(url, source, RawScript::kScriptTag));
   Library& lib = Library::Handle(Library::CoreLibrary());
   EXPECT(CompilerTest::TestCompileScript(lib, script));
   EXPECT(ClassFinalizer::ProcessPendingClasses());
   Class& cls =
       Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "A"))));
   EXPECT(!cls.IsNull());
   String& function_foo_name = String::Handle(String::New("foo"));
   Function& func =
       Function::Handle(cls.LookupStaticFunction(function_foo_name));
   EXPECT(!func.HasCode());
   CompilerTest::TestCompileFunction(func);
   EXPECT(func.HasCode());
   EXPECT(!func.HasOptimizedCode());
 #if !defined(PRODUCT)
   // Constant in product mode.
   FLAG_background_compilation = true;
 #endif
   Isolate* isolate = thread->isolate();
   BackgroundCompiler::Start(isolate);
   isolate->background_compiler()->CompileOptimized(func);
   Monitor* m = new Monitor();
   {
     MonitorLocker ml(m);
     while (!func.HasOptimizedCode()) {
       ml.WaitWithSafepointCheck(thread, 1);
     }
   }
   delete m;
   BackgroundCompiler::Stop(isolate);
 }

 TEST_CASE(RegenerateAllocStubs) {
   const char* kScriptChars =
       "class A {\n"
       "}\n"
       "unOpt() => new A(); \n"
       "optIt() => new A(); \n"
       "A main() {\n"
       "  return unOpt();\n"
       "}\n";

   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
   Dart_Handle result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);
   RawLibrary* raw_library = Library::RawCast(Api::UnwrapHandle(lib));
   Library& lib_handle = Library::ZoneHandle(raw_library);
   Class& cls = Class::Handle(
       lib_handle.LookupClass(String::Handle(Symbols::New(thread, "A"))));
   EXPECT(!cls.IsNull());

   Zone* zone = thread->zone();
   const Code& stub =
       Code::Handle(zone, StubCode::GetAllocationStubForClass(cls));
   Class& owner = Class::Handle();
   owner ^= stub.owner();
   owner.DisableAllocationStub();
   result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);

   owner.DisableAllocationStub();
   result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);

   owner.DisableAllocationStub();
   result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);
 }

 TEST_CASE(EvalExpression) {
   const char* kScriptChars =
       "int ten = 2 * 5;              \n"
       "get dot => '.';               \n"
       "class A {                     \n"
       "  var apa = 'Herr Nilsson';   \n"
       "  calc(x) => '${x*ten}';      \n"
       "}                             \n"
       "makeObj() => new A();         \n";

   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
   Dart_Handle obj_handle =
       Dart_Invoke(lib, Dart_NewStringFromCString("makeObj"), 0, NULL);
   EXPECT(!Dart_IsNull(obj_handle));
   EXPECT(!Dart_IsError(obj_handle));
   TransitionNativeToVM transition(thread);
   const Object& obj = Object::Handle(Api::UnwrapHandle(obj_handle));
   EXPECT(!obj.IsNull());
   EXPECT(obj.IsInstance());

   String& expr_text = String::Handle();
   expr_text = String::New("apa + ' ${calc(10)}' + dot");
   Object& val = Object::Handle();
   const Class& receiver_cls = Class::Handle(obj.clazz());

   if (!KernelIsolate::IsRunning()) {
     val = Instance::Cast(obj).Evaluate(
         receiver_cls, expr_text, Array::empty_array(), Array::empty_array());
   } else {
     RawLibrary* raw_library = Library::RawCast(Api::UnwrapHandle(lib));
     Library& lib_handle = Library::ZoneHandle(raw_library);

     Dart_KernelCompilationResult compilation_result;
     {
       TransitionVMToNative transition(thread);
       compilation_result = KernelIsolate::CompileExpressionToKernel(
           expr_text.ToCString(), Array::empty_array(), Array::empty_array(),
           String::Handle(lib_handle.url()).ToCString(), "A",
           /* is_static= */ false);
     }
     EXPECT_EQ(Dart_KernelCompilationStatus_Ok, compilation_result.status);

     const uint8_t* kernel_bytes = compilation_result.kernel;
     intptr_t kernel_length = compilation_result.kernel_size;

     val = Instance::Cast(obj).EvaluateCompiledExpression(
         receiver_cls, kernel_bytes, kernel_length, Array::empty_array(),
         Array::empty_array(), TypeArguments::null_type_arguments());
     free(const_cast<uint8_t*>(kernel_bytes));
   }
   EXPECT(!val.IsNull());
   EXPECT(!val.IsError());
   EXPECT(val.IsString());
   EXPECT_STREQ("Herr Nilsson 100.", val.ToCString());
 }

 ISOLATE_UNIT_TEST_CASE(EvalExpressionWithLazyCompile) {
   {  // Initialize an incremental compiler in DFE mode.
     TransitionVMToNative transition(thread);
     TestCase::LoadTestScript("", NULL);
   }
   Library& lib = Library::Handle(Library::CoreLibrary());
   const String& expression = String::Handle(
       String::New("(){ return (){ return (){ return 3 + 4; }(); }(); }()"));
   Object& val = Object::Handle();
   val = Api::UnwrapHandle(
       TestCase::EvaluateExpression(lib, expression,
                                    /* param_names= */ Array::empty_array(),
                                    /* param_values= */ Array::empty_array()));

   EXPECT(!val.IsNull());
   EXPECT(!val.IsError());
   EXPECT(val.IsInteger());
   EXPECT_EQ(7, Integer::Cast(val).AsInt64Value());
 }

 ISOLATE_UNIT_TEST_CASE(EvalExpressionExhaustCIDs) {
   {  // Initialize an incremental compiler in DFE mode.
     TransitionVMToNative transition(thread);
     TestCase::LoadTestScript("", NULL);
   }
   Library& lib = Library::Handle(Library::CoreLibrary());
   const String& expression = String::Handle(String::New("3 + 4"));
   Object& val = Object::Handle();
   val = Api::UnwrapHandle(
       TestCase::EvaluateExpression(lib, expression,
                                    /* param_names= */ Array::empty_array(),
                                    /* param_values= */ Array::empty_array()));

   EXPECT(!val.IsNull());
   EXPECT(!val.IsError());
   EXPECT(val.IsInteger());
   EXPECT_EQ(7, Integer::Cast(val).AsInt64Value());

   intptr_t initial_class_table_size =
       Isolate::Current()->class_table()->NumCids();

   val = Api::UnwrapHandle(
       TestCase::EvaluateExpression(lib, expression,
                                    /* param_names= */ Array::empty_array(),
                                    /* param_values= */ Array::empty_array()));
   EXPECT(!val.IsNull());
   EXPECT(!val.IsError());
   EXPECT(val.IsInteger());
   EXPECT_EQ(7, Integer::Cast(val).AsInt64Value());

   intptr_t final_class_table_size =
       Isolate::Current()->class_table()->NumCids();
   // Eval should not eat into this non-renewable resource.
   EXPECT_EQ(initial_class_table_size, final_class_table_size);
 }

 }  // namespace dart
	// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
	// for details. All rights reserved. Use of this source code is governed by a
	// BSD-style license that can be found in the LICENSE file.

	#include "vm/compiler/jit/compiler.h"
	#include "platform/assert.h"
	#include "vm/class_finalizer.h"
	#include "vm/code_patcher.h"
	#include "vm/dart_api_impl.h"
	#include "vm/heap/safepoint.h"
	#include "vm/kernel_isolate.h"
	#include "vm/object.h"
	#include "vm/symbols.h"
	#include "vm/thread_pool.h"
	#include "vm/unit_test.h"

	namespace dart {

	ISOLATE_UNIT_TEST_CASE(CompileScript) {
	const char* kScriptChars =
	"class A {\n"
	" static foo() { return 42; }\n"
	"}\n";
	String& url = String::Handle(String::New("dart-test:CompileScript"));
	String& source = String::Handle(String::New(kScriptChars));
	Script& script =
	Script::Handle(Script::New(url, source, RawScript::kScriptTag));
	Library& lib = Library::Handle(Library::CoreLibrary());
	EXPECT(CompilerTest::TestCompileScript(lib, script));
	}

	ISOLATE_UNIT_TEST_CASE(CompileFunction) {
	const char* kScriptChars =
	"class A {\n"
	" static foo() { return 42; }\n"
	" static moo() {\n"
	" // A.foo();\n"
	" }\n"
	"}\n";
	String& url = String::Handle(String::New("dart-test:CompileFunction"));
	String& source = String::Handle(String::New(kScriptChars));
	Script& script =
	Script::Handle(Script::New(url, source, RawScript::kScriptTag));
	Library& lib = Library::Handle(Library::CoreLibrary());
	EXPECT(CompilerTest::TestCompileScript(lib, script));
	EXPECT(ClassFinalizer::ProcessPendingClasses());
	Class& cls =
	Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "A"))));
	EXPECT(!cls.IsNull());
	String& function_foo_name = String::Handle(String::New("foo"));
	Function& function_foo =
	Function::Handle(cls.LookupStaticFunction(function_foo_name));
	EXPECT(!function_foo.IsNull());
	String& function_source = String::Handle(function_foo.GetSource());
	EXPECT_STREQ("static foo() { return 42; }", function_source.ToCString());
	EXPECT(CompilerTest::TestCompileFunction(function_foo));
	EXPECT(function_foo.HasCode());

	String& function_moo_name = String::Handle(String::New("moo"));
	Function& function_moo =
	Function::Handle(cls.LookupStaticFunction(function_moo_name));
	EXPECT(!function_moo.IsNull());

	EXPECT(CompilerTest::TestCompileFunction(function_moo));
	EXPECT(function_moo.HasCode());
	function_source = function_moo.GetSource();
	EXPECT_STREQ("static moo() {\n // A.foo();\n }",
	function_source.ToCString());
	}

	ISOLATE_UNIT_TEST_CASE(CompileFunctionOnHelperThread) {
	// Create a simple function and compile it without optimization.
	const char* kScriptChars =
	"class A {\n"
	" static foo() { return 42; }\n"
	"}\n";
	String& url =
	String::Handle(String::New("dart-test:CompileFunctionOnHelperThread"));
	String& source = String::Handle(String::New(kScriptChars));
	Script& script =
	Script::Handle(Script::New(url, source, RawScript::kScriptTag));
	Library& lib = Library::Handle(Library::CoreLibrary());
	EXPECT(CompilerTest::TestCompileScript(lib, script));
	EXPECT(ClassFinalizer::ProcessPendingClasses());
	Class& cls =
	Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "A"))));
	EXPECT(!cls.IsNull());
	String& function_foo_name = String::Handle(String::New("foo"));
	Function& func =
	Function::Handle(cls.LookupStaticFunction(function_foo_name));
	EXPECT(!func.HasCode());
	CompilerTest::TestCompileFunction(func);
	EXPECT(func.HasCode());
	EXPECT(!func.HasOptimizedCode());
	#if !defined(PRODUCT)
	// Constant in product mode.
	FLAG_background_compilation = true;
	#endif
	Isolate* isolate = thread->isolate();
	BackgroundCompiler::Start(isolate);
	isolate->background_compiler()->CompileOptimized(func);
	Monitor* m = new Monitor();
	{
	MonitorLocker ml(m);
	while (!func.HasOptimizedCode()) {
	ml.WaitWithSafepointCheck(thread, 1);
	}
	}
	delete m;
	BackgroundCompiler::Stop(isolate);
	}

	TEST_CASE(RegenerateAllocStubs) {
	const char* kScriptChars =
	"class A {\n"
	"}\n"
	"unOpt() => new A(); \n"
	"optIt() => new A(); \n"
	"A main() {\n"
	" return unOpt();\n"
	"}\n";

	Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
	Dart_Handle result = Dart_Invoke(lib, NewString("main"), 0, NULL);
	EXPECT_VALID(result);
	RawLibrary* raw_library = Library::RawCast(Api::UnwrapHandle(lib));
	Library& lib_handle = Library::ZoneHandle(raw_library);
	Class& cls = Class::Handle(
	lib_handle.LookupClass(String::Handle(Symbols::New(thread, "A"))));
	EXPECT(!cls.IsNull());

	Zone* zone = thread->zone();
	const Code& stub =
	Code::Handle(zone, StubCode::GetAllocationStubForClass(cls));
	Class& owner = Class::Handle();
	owner ^= stub.owner();
	owner.DisableAllocationStub();
	result = Dart_Invoke(lib, NewString("main"), 0, NULL);
	EXPECT_VALID(result);

	owner.DisableAllocationStub();
	result = Dart_Invoke(lib, NewString("main"), 0, NULL);
	EXPECT_VALID(result);

	owner.DisableAllocationStub();
	result = Dart_Invoke(lib, NewString("main"), 0, NULL);
	EXPECT_VALID(result);
	}

	TEST_CASE(EvalExpression) {
	const char* kScriptChars =
	"int ten = 2 * 5; \n"
	"get dot => '.'; \n"
	"class A { \n"
	" var apa = 'Herr Nilsson'; \n"
	" calc(x) => '${x*ten}'; \n"
	"} \n"
	"makeObj() => new A(); \n";

	Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
	Dart_Handle obj_handle =
	Dart_Invoke(lib, Dart_NewStringFromCString("makeObj"), 0, NULL);
	EXPECT(!Dart_IsNull(obj_handle));
	EXPECT(!Dart_IsError(obj_handle));
	TransitionNativeToVM transition(thread);
	const Object& obj = Object::Handle(Api::UnwrapHandle(obj_handle));
	EXPECT(!obj.IsNull());
	EXPECT(obj.IsInstance());

	String& expr_text = String::Handle();
	expr_text = String::New("apa + ' ${calc(10)}' + dot");
	Object& val = Object::Handle();
	const Class& receiver_cls = Class::Handle(obj.clazz());

	if (!KernelIsolate::IsRunning()) {
	val = Instance::Cast(obj).Evaluate(
	receiver_cls, expr_text, Array::empty_array(), Array::empty_array());
	} else {
	RawLibrary* raw_library = Library::RawCast(Api::UnwrapHandle(lib));
	Library& lib_handle = Library::ZoneHandle(raw_library);

	Dart_KernelCompilationResult compilation_result;
	{
	TransitionVMToNative transition(thread);
	compilation_result = KernelIsolate::CompileExpressionToKernel(
	expr_text.ToCString(), Array::empty_array(), Array::empty_array(),
	String::Handle(lib_handle.url()).ToCString(), "A",
	/* is_static= */ false);
	}
	EXPECT_EQ(Dart_KernelCompilationStatus_Ok, compilation_result.status);

	const uint8_t* kernel_bytes = compilation_result.kernel;
	intptr_t kernel_length = compilation_result.kernel_size;

	val = Instance::Cast(obj).EvaluateCompiledExpression(
	receiver_cls, kernel_bytes, kernel_length, Array::empty_array(),
	Array::empty_array(), TypeArguments::null_type_arguments());
	free(const_cast<uint8_t*>(kernel_bytes));
	}
	EXPECT(!val.IsNull());
	EXPECT(!val.IsError());
	EXPECT(val.IsString());
	EXPECT_STREQ("Herr Nilsson 100.", val.ToCString());
	}

	ISOLATE_UNIT_TEST_CASE(EvalExpressionWithLazyCompile) {
	{ // Initialize an incremental compiler in DFE mode.
	TransitionVMToNative transition(thread);
	TestCase::LoadTestScript("", NULL);
	}
	Library& lib = Library::Handle(Library::CoreLibrary());
	const String& expression = String::Handle(
	String::New("(){ return (){ return (){ return 3 + 4; }(); }(); }()"));
	Object& val = Object::Handle();
	val = Api::UnwrapHandle(
	TestCase::EvaluateExpression(lib, expression,
	/* param_names= */ Array::empty_array(),
	/* param_values= */ Array::empty_array()));

	EXPECT(!val.IsNull());
	EXPECT(!val.IsError());
	EXPECT(val.IsInteger());
	EXPECT_EQ(7, Integer::Cast(val).AsInt64Value());
	}

	ISOLATE_UNIT_TEST_CASE(EvalExpressionExhaustCIDs) {
	{ // Initialize an incremental compiler in DFE mode.
	TransitionVMToNative transition(thread);
	TestCase::LoadTestScript("", NULL);
	}
	Library& lib = Library::Handle(Library::CoreLibrary());
	const String& expression = String::Handle(String::New("3 + 4"));
	Object& val = Object::Handle();
	val = Api::UnwrapHandle(
	TestCase::EvaluateExpression(lib, expression,
	/* param_names= */ Array::empty_array(),
	/* param_values= */ Array::empty_array()));

	EXPECT(!val.IsNull());
	EXPECT(!val.IsError());
	EXPECT(val.IsInteger());
	EXPECT_EQ(7, Integer::Cast(val).AsInt64Value());

	intptr_t initial_class_table_size =
	Isolate::Current()->class_table()->NumCids();

	val = Api::UnwrapHandle(
	TestCase::EvaluateExpression(lib, expression,
	/* param_names= */ Array::empty_array(),
	/* param_values= */ Array::empty_array()));
	EXPECT(!val.IsNull());
	EXPECT(!val.IsError());
	EXPECT(val.IsInteger());
	EXPECT_EQ(7, Integer::Cast(val).AsInt64Value());

	intptr_t final_class_table_size =
	Isolate::Current()->class_table()->NumCids();
	// Eval should not eat into this non-renewable resource.
	EXPECT_EQ(initial_class_table_size, final_class_table_size);
	}

	} // namespace dart