| // Copyright 2013 The Chromium 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 "gin/converter.h" |
| |
| #include "v8/include/v8.h" |
| |
| using v8::ArrayBuffer; |
| using v8::Boolean; |
| using v8::External; |
| using v8::Function; |
| using v8::Handle; |
| using v8::Integer; |
| using v8::Isolate; |
| using v8::Number; |
| using v8::Object; |
| using v8::String; |
| using v8::Value; |
| |
| namespace gin { |
| |
| Handle<Value> Converter<bool>::ToV8(Isolate* isolate, bool val) { |
| return Boolean::New(val).As<Value>(); |
| } |
| |
| bool Converter<bool>::FromV8(Handle<Value> val, bool* out) { |
| *out = val->BooleanValue(); |
| return true; |
| } |
| |
| Handle<Value> Converter<int32_t>::ToV8(Isolate* isolate, int32_t val) { |
| return Integer::New(val, isolate).As<Value>(); |
| } |
| |
| bool Converter<int32_t>::FromV8(Handle<Value> val, int32_t* out) { |
| if (!val->IsInt32()) |
| return false; |
| *out = val->Int32Value(); |
| return true; |
| } |
| |
| Handle<Value> Converter<uint32_t>::ToV8(Isolate* isolate, uint32_t val) { |
| return Integer::NewFromUnsigned(val, isolate).As<Value>(); |
| } |
| |
| bool Converter<uint32_t>::FromV8(Handle<Value> val, uint32_t* out) { |
| if (!val->IsUint32()) |
| return false; |
| *out = val->Uint32Value(); |
| return true; |
| } |
| |
| Handle<Value> Converter<int64_t>::ToV8(Isolate* isolate, int64_t val) { |
| return Number::New(isolate, static_cast<double>(val)).As<Value>(); |
| } |
| |
| bool Converter<int64_t>::FromV8(Handle<Value> val, int64_t* out) { |
| if (!val->IsNumber()) |
| return false; |
| // Even though IntegerValue returns int64_t, JavaScript cannot represent |
| // the full precision of int64_t, which means some rounding might occur. |
| *out = val->IntegerValue(); |
| return true; |
| } |
| |
| Handle<Value> Converter<uint64_t>::ToV8(Isolate* isolate, uint64_t val) { |
| return Number::New(isolate, static_cast<double>(val)).As<Value>(); |
| } |
| |
| bool Converter<uint64_t>::FromV8(Handle<Value> val, uint64_t* out) { |
| if (!val->IsNumber()) |
| return false; |
| *out = static_cast<uint64_t>(val->IntegerValue()); |
| return true; |
| } |
| |
| Handle<Value> Converter<double>::ToV8(Isolate* isolate, double val) { |
| return Number::New(isolate, val).As<Value>(); |
| } |
| |
| bool Converter<double>::FromV8(Handle<Value> val, double* out) { |
| if (!val->IsNumber()) |
| return false; |
| *out = val->NumberValue(); |
| return true; |
| } |
| |
| Handle<Value> Converter<std::string>::ToV8(Isolate* isolate, |
| const std::string& val) { |
| return String::NewFromUtf8(isolate, |
| val.data(), |
| String::kNormalString, |
| static_cast<uint32_t>(val.length())); |
| } |
| |
| bool Converter<std::string>::FromV8(Handle<Value> val, |
| std::string* out) { |
| if (!val->IsString()) |
| return false; |
| Handle<String> str = Handle<String>::Cast(val); |
| int length = str->Utf8Length(); |
| out->resize(length); |
| str->WriteUtf8(&(*out)[0], length, NULL, String::NO_NULL_TERMINATION); |
| return true; |
| } |
| |
| bool Converter<Handle<Function> >::FromV8(Handle<Value> val, |
| Handle<Function>* out) { |
| if (!val->IsFunction()) |
| return false; |
| *out = Handle<Function>::Cast(val); |
| return true; |
| } |
| |
| Handle<Value> Converter<Handle<Object> >::ToV8(v8::Isolate* isolate, |
| Handle<Object> val) { |
| return val.As<Value>(); |
| } |
| |
| bool Converter<Handle<Object> >::FromV8(Handle<Value> val, |
| Handle<Object>* out) { |
| if (!val->IsObject()) |
| return false; |
| *out = Handle<Object>::Cast(val); |
| return true; |
| } |
| |
| Handle<Value> Converter<Handle<ArrayBuffer> >::ToV8(v8::Isolate* isolate, |
| Handle<ArrayBuffer> val) { |
| return val.As<Value>(); |
| } |
| |
| bool Converter<Handle<ArrayBuffer> >::FromV8(Handle<Value> val, |
| Handle<ArrayBuffer>* out) { |
| if (!val->IsArrayBuffer()) |
| return false; |
| *out = Handle<ArrayBuffer>::Cast(val); |
| return true; |
| } |
| |
| Handle<Value> Converter<Handle<External> >::ToV8(v8::Isolate* isolate, |
| Handle<External> val) { |
| return val.As<Value>(); |
| } |
| |
| bool Converter<Handle<External> >::FromV8(Handle<Value> val, |
| Handle<External>* out) { |
| if (!val->IsExternal()) |
| return false; |
| *out = Handle<External>::Cast(val); |
| return true; |
| } |
| |
| Handle<Value> Converter<Handle<Value> >::ToV8(v8::Isolate* isolate, |
| Handle<Value> val) { |
| return val; |
| } |
| |
| bool Converter<Handle<Value> >::FromV8(Handle<Value> val, |
| Handle<Value>* out) { |
| *out = val; |
| return true; |
| } |
| |
| v8::Handle<v8::String> StringToSymbol(v8::Isolate* isolate, |
| const std::string& val) { |
| return String::NewFromUtf8(isolate, |
| val.data(), |
| String::kInternalizedString, |
| static_cast<uint32_t>(val.length())); |
| } |
| |
| |
| } // namespace gin |