| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <stdlib.h> |
| #include <wchar.h> |
| |
| #include "v8.h" |
| |
| #include "compiler.h" |
| #include "disasm.h" |
| #include "disassembler.h" |
| #include "execution.h" |
| #include "factory.h" |
| #include "platform.h" |
| #include "cctest.h" |
| |
| using namespace v8::internal; |
| |
| static v8::Persistent<v8::Context> env; |
| |
| // --- P r i n t E x t e n s i o n --- |
| |
| class PrintExtension : public v8::Extension { |
| public: |
| PrintExtension() : v8::Extension("v8/print", kSource) { } |
| virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction( |
| v8::Handle<v8::String> name); |
| static v8::Handle<v8::Value> Print(const v8::Arguments& args); |
| private: |
| static const char* kSource; |
| }; |
| |
| |
| const char* PrintExtension::kSource = "native function print();"; |
| |
| |
| v8::Handle<v8::FunctionTemplate> PrintExtension::GetNativeFunction( |
| v8::Handle<v8::String> str) { |
| return v8::FunctionTemplate::New(PrintExtension::Print); |
| } |
| |
| |
| v8::Handle<v8::Value> PrintExtension::Print(const v8::Arguments& args) { |
| for (int i = 0; i < args.Length(); i++) { |
| if (i != 0) printf(" "); |
| v8::HandleScope scope; |
| v8::String::Utf8Value str(args[i]); |
| if (*str == NULL) return v8::Undefined(); |
| printf("%s", *str); |
| } |
| printf("\n"); |
| return v8::Undefined(); |
| } |
| |
| |
| static PrintExtension kPrintExtension; |
| v8::DeclareExtension kPrintExtensionDeclaration(&kPrintExtension); |
| |
| |
| static void InitializeVM() { |
| if (env.IsEmpty()) { |
| v8::HandleScope scope; |
| const char* extensions[] = { "v8/print", "v8/gc" }; |
| v8::ExtensionConfiguration config(2, extensions); |
| env = v8::Context::New(&config); |
| } |
| v8::HandleScope scope; |
| env->Enter(); |
| } |
| |
| |
| static MaybeObject* GetGlobalProperty(const char* name) { |
| Handle<String> symbol = FACTORY->LookupAsciiSymbol(name); |
| return Isolate::Current()->context()->global_object()->GetProperty(*symbol); |
| } |
| |
| |
| static void SetGlobalProperty(const char* name, Object* value) { |
| Isolate* isolate = Isolate::Current(); |
| Handle<Object> object(value); |
| Handle<String> symbol = FACTORY->LookupAsciiSymbol(name); |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| SetProperty(isolate, global, symbol, object, NONE, kNonStrictMode); |
| } |
| |
| |
| static Handle<JSFunction> Compile(const char* source) { |
| Handle<String> source_code(FACTORY->NewStringFromUtf8(CStrVector(source))); |
| Handle<SharedFunctionInfo> shared_function = |
| Compiler::Compile(source_code, |
| Handle<String>(), |
| 0, |
| 0, |
| Handle<Context>(Isolate::Current()->native_context()), |
| NULL, |
| NULL, |
| Handle<String>::null(), |
| NOT_NATIVES_CODE); |
| return FACTORY->NewFunctionFromSharedFunctionInfo(shared_function, |
| Isolate::Current()->native_context()); |
| } |
| |
| |
| static double Inc(int x) { |
| const char* source = "result = %d + 1;"; |
| EmbeddedVector<char, 512> buffer; |
| OS::SNPrintF(buffer, source, x); |
| |
| Handle<JSFunction> fun = Compile(buffer.start()); |
| if (fun.is_null()) return -1; |
| |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| return GetGlobalProperty("result")->ToObjectChecked()->Number(); |
| } |
| |
| |
| TEST(Inc) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| CHECK_EQ(4.0, Inc(3)); |
| } |
| |
| |
| static double Add(int x, int y) { |
| Handle<JSFunction> fun = Compile("result = x + y;"); |
| if (fun.is_null()) return -1; |
| |
| SetGlobalProperty("x", Smi::FromInt(x)); |
| SetGlobalProperty("y", Smi::FromInt(y)); |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| return GetGlobalProperty("result")->ToObjectChecked()->Number(); |
| } |
| |
| |
| TEST(Add) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| CHECK_EQ(5.0, Add(2, 3)); |
| } |
| |
| |
| static double Abs(int x) { |
| Handle<JSFunction> fun = Compile("if (x < 0) result = -x; else result = x;"); |
| if (fun.is_null()) return -1; |
| |
| SetGlobalProperty("x", Smi::FromInt(x)); |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| return GetGlobalProperty("result")->ToObjectChecked()->Number(); |
| } |
| |
| |
| TEST(Abs) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| CHECK_EQ(3.0, Abs(-3)); |
| } |
| |
| |
| static double Sum(int n) { |
| Handle<JSFunction> fun = |
| Compile("s = 0; while (n > 0) { s += n; n -= 1; }; result = s;"); |
| if (fun.is_null()) return -1; |
| |
| SetGlobalProperty("n", Smi::FromInt(n)); |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| return GetGlobalProperty("result")->ToObjectChecked()->Number(); |
| } |
| |
| |
| TEST(Sum) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| CHECK_EQ(5050.0, Sum(100)); |
| } |
| |
| |
| TEST(Print) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| const char* source = "for (n = 0; n < 100; ++n) print(n, 1, 2);"; |
| Handle<JSFunction> fun = Compile(source); |
| if (fun.is_null()) return; |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| } |
| |
| |
| // The following test method stems from my coding efforts today. It |
| // tests all the functionality I have added to the compiler today |
| TEST(Stuff) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| const char* source = |
| "r = 0;\n" |
| "a = new Object;\n" |
| "if (a == a) r+=1;\n" // 1 |
| "if (a != new Object()) r+=2;\n" // 2 |
| "a.x = 42;\n" |
| "if (a.x == 42) r+=4;\n" // 4 |
| "function foo() { var x = 87; return x; }\n" |
| "if (foo() == 87) r+=8;\n" // 8 |
| "function bar() { var x; x = 99; return x; }\n" |
| "if (bar() == 99) r+=16;\n" // 16 |
| "function baz() { var x = 1, y, z = 2; y = 3; return x + y + z; }\n" |
| "if (baz() == 6) r+=32;\n" // 32 |
| "function Cons0() { this.x = 42; this.y = 87; }\n" |
| "if (new Cons0().x == 42) r+=64;\n" // 64 |
| "if (new Cons0().y == 87) r+=128;\n" // 128 |
| "function Cons2(x, y) { this.sum = x + y; }\n" |
| "if (new Cons2(3,4).sum == 7) r+=256;"; // 256 |
| |
| Handle<JSFunction> fun = Compile(source); |
| CHECK(!fun.is_null()); |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| CHECK_EQ(511.0, GetGlobalProperty("r")->ToObjectChecked()->Number()); |
| } |
| |
| |
| TEST(UncaughtThrow) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| const char* source = "throw 42;"; |
| Handle<JSFunction> fun = Compile(source); |
| CHECK(!fun.is_null()); |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun, global, 0, NULL, &has_pending_exception); |
| CHECK(has_pending_exception); |
| CHECK_EQ(42.0, Isolate::Current()->pending_exception()-> |
| ToObjectChecked()->Number()); |
| } |
| |
| |
| // Tests calling a builtin function from C/C++ code, and the builtin function |
| // performs GC. It creates a stack frame looks like following: |
| // | C (PerformGC) | |
| // | JS-to-C | |
| // | JS | |
| // | C-to-JS | |
| TEST(C2JSFrames) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| const char* source = "function foo(a) { gc(), print(a); }"; |
| |
| Handle<JSFunction> fun0 = Compile(source); |
| CHECK(!fun0.is_null()); |
| |
| // Run the generated code to populate the global object with 'foo'. |
| bool has_pending_exception; |
| Handle<JSObject> global(Isolate::Current()->context()->global_object()); |
| Execution::Call(fun0, global, 0, NULL, &has_pending_exception); |
| CHECK(!has_pending_exception); |
| |
| Object* foo_symbol = FACTORY->LookupAsciiSymbol("foo")->ToObjectChecked(); |
| MaybeObject* fun1_object = Isolate::Current()->context()->global_object()-> |
| GetProperty(String::cast(foo_symbol)); |
| Handle<Object> fun1(fun1_object->ToObjectChecked()); |
| CHECK(fun1->IsJSFunction()); |
| |
| Handle<Object> argv[] = { FACTORY->LookupAsciiSymbol("hello") }; |
| Execution::Call(Handle<JSFunction>::cast(fun1), |
| global, |
| ARRAY_SIZE(argv), |
| argv, |
| &has_pending_exception); |
| CHECK(!has_pending_exception); |
| } |
| |
| |
| // Regression 236. Calling InitLineEnds on a Script with undefined |
| // source resulted in crash. |
| TEST(Regression236) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| Handle<Script> script = FACTORY->NewScript(FACTORY->empty_string()); |
| script->set_source(HEAP->undefined_value()); |
| CHECK_EQ(-1, GetScriptLineNumber(script, 0)); |
| CHECK_EQ(-1, GetScriptLineNumber(script, 100)); |
| CHECK_EQ(-1, GetScriptLineNumber(script, -1)); |
| } |
| |
| |
| TEST(GetScriptLineNumber) { |
| LocalContext env; |
| v8::HandleScope scope; |
| v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); |
| const char function_f[] = "function f() {}"; |
| const int max_rows = 1000; |
| const int buffer_size = max_rows + sizeof(function_f); |
| ScopedVector<char> buffer(buffer_size); |
| memset(buffer.start(), '\n', buffer_size - 1); |
| buffer[buffer_size - 1] = '\0'; |
| |
| for (int i = 0; i < max_rows; ++i) { |
| if (i > 0) |
| buffer[i - 1] = '\n'; |
| memcpy(&buffer[i], function_f, sizeof(function_f) - 1); |
| v8::Handle<v8::String> script_body = v8::String::New(buffer.start()); |
| v8::Script::Compile(script_body, &origin)->Run(); |
| v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast( |
| env->Global()->Get(v8::String::New("f"))); |
| CHECK_EQ(i, f->GetScriptLineNumber()); |
| } |
| } |
| |
| |
| // Test that optimized code for different closures is actually shared |
| // immediately by the FastNewClosureStub when run in the same context. |
| TEST(OptimizedCodeSharing) { |
| // Skip test if --cache-optimized-code is not activated by default because |
| // FastNewClosureStub that is baked into the snapshot is incorrect. |
| if (!FLAG_cache_optimized_code) return; |
| FLAG_allow_natives_syntax = true; |
| InitializeVM(); |
| v8::HandleScope scope; |
| for (int i = 0; i < 10; i++) { |
| LocalContext env; |
| env->Global()->Set(v8::String::New("x"), v8::Integer::New(i)); |
| CompileRun("function MakeClosure() {" |
| " return function() { return x; };" |
| "}" |
| "var closure0 = MakeClosure();" |
| "%DebugPrint(closure0());" |
| "%OptimizeFunctionOnNextCall(closure0);" |
| "%DebugPrint(closure0());" |
| "var closure1 = MakeClosure();" |
| "var closure2 = MakeClosure();"); |
| Handle<JSFunction> fun1 = v8::Utils::OpenHandle( |
| *v8::Local<v8::Function>::Cast(env->Global()->Get(v8_str("closure1")))); |
| Handle<JSFunction> fun2 = v8::Utils::OpenHandle( |
| *v8::Local<v8::Function>::Cast(env->Global()->Get(v8_str("closure2")))); |
| CHECK(fun1->IsOptimized() || !fun1->IsOptimizable()); |
| CHECK(fun2->IsOptimized() || !fun2->IsOptimizable()); |
| CHECK_EQ(fun1->code(), fun2->code()); |
| } |
| } |
| |
| |
| #ifdef ENABLE_DISASSEMBLER |
| static Handle<JSFunction> GetJSFunction(v8::Handle<v8::Object> obj, |
| const char* property_name) { |
| v8::Local<v8::Function> fun = |
| v8::Local<v8::Function>::Cast(obj->Get(v8_str(property_name))); |
| return v8::Utils::OpenHandle(*fun); |
| } |
| |
| |
| static void CheckCodeForUnsafeLiteral(Handle<JSFunction> f) { |
| // Create a disassembler with default name lookup. |
| disasm::NameConverter name_converter; |
| disasm::Disassembler d(name_converter); |
| |
| if (f->code()->kind() == Code::FUNCTION) { |
| Address pc = f->code()->instruction_start(); |
| int decode_size = |
| Min(f->code()->instruction_size(), |
| static_cast<int>(f->code()->stack_check_table_offset())); |
| Address end = pc + decode_size; |
| |
| v8::internal::EmbeddedVector<char, 128> decode_buffer; |
| v8::internal::EmbeddedVector<char, 128> smi_hex_buffer; |
| Smi* smi = Smi::FromInt(12345678); |
| OS::SNPrintF(smi_hex_buffer, "0x%lx", reinterpret_cast<intptr_t>(smi)); |
| while (pc < end) { |
| int num_const = d.ConstantPoolSizeAt(pc); |
| if (num_const >= 0) { |
| pc += (num_const + 1) * kPointerSize; |
| } else { |
| pc += d.InstructionDecode(decode_buffer, pc); |
| CHECK(strstr(decode_buffer.start(), smi_hex_buffer.start()) == NULL); |
| } |
| } |
| } |
| } |
| |
| |
| TEST(SplitConstantsInFullCompiler) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("function f() { a = 12345678 }; f();"); |
| CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f")); |
| CompileRun("function f(x) { a = 12345678 + x}; f(1);"); |
| CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f")); |
| CompileRun("function f(x) { var arguments = 1; x += 12345678}; f(1);"); |
| CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f")); |
| CompileRun("function f(x) { var arguments = 1; x = 12345678}; f(1);"); |
| CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f")); |
| } |
| #endif |