624ba4f642
* deprecate native_mate/native_mate/object_template_builder.h * add gin_helper/object_template_builder.h * add patch to avoid ambiguous error * remove usage of object_template_builder_deprecated.h in a few files * add note we should remove gin_helper/object_template_builder.h in future
120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
// Copyright (c) 2019 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
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#define SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
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#include <set>
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#include <utility>
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#include "gin/converter.h"
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namespace gin {
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// Make it possible to convert move-only types.
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template <typename T>
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v8::Local<v8::Value> ConvertToV8(v8::Isolate* isolate, T&& input) {
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return Converter<typename std::remove_reference<T>::type>::ToV8(
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isolate, std::move(input));
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}
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#if !defined(OS_LINUX) && !defined(OS_FREEBSD)
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template <>
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struct Converter<unsigned long> { // NOLINT(runtime/int)
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
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unsigned long val); // NOLINT(runtime/int)
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static bool FromV8(v8::Isolate* isolate,
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v8::Local<v8::Value> val,
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unsigned long* out); // NOLINT(runtime/int)
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};
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#endif
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template <>
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struct Converter<const char*> {
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, const char* val) {
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return v8::String::NewFromUtf8(isolate, val, v8::NewStringType::kNormal)
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.ToLocalChecked();
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}
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};
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template <size_t n>
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struct Converter<const char[n]> {
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, const char* val) {
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return v8::String::NewFromUtf8(isolate, val, v8::NewStringType::kNormal,
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n - 1)
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.ToLocalChecked();
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}
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};
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template <>
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struct Converter<v8::Local<v8::Array>> {
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
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v8::Local<v8::Array> val) {
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return val;
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}
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static bool FromV8(v8::Isolate* isolate,
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v8::Local<v8::Value> val,
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v8::Local<v8::Array>* out) {
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if (!val->IsArray())
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return false;
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*out = v8::Local<v8::Array>::Cast(val);
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return true;
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}
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};
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template <>
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struct Converter<v8::Local<v8::String>> {
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
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v8::Local<v8::String> val) {
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return val;
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}
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static bool FromV8(v8::Isolate* isolate,
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v8::Local<v8::Value> val,
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v8::Local<v8::String>* out) {
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if (!val->IsString())
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return false;
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*out = v8::Local<v8::String>::Cast(val);
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return true;
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}
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};
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template <typename T>
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struct Converter<std::set<T>> {
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
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const std::set<T>& val) {
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v8::Local<v8::Array> result(
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v8::Array::New(isolate, static_cast<int>(val.size())));
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auto context = isolate->GetCurrentContext();
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typename std::set<T>::const_iterator it;
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int i;
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for (i = 0, it = val.begin(); it != val.end(); ++it, ++i)
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result->Set(context, i, Converter<T>::ToV8(isolate, *it)).Check();
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return result;
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}
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static bool FromV8(v8::Isolate* isolate,
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v8::Local<v8::Value> val,
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std::set<T>* out) {
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if (!val->IsArray())
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return false;
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auto context = isolate->GetCurrentContext();
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std::set<T> result;
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v8::Local<v8::Array> array(v8::Local<v8::Array>::Cast(val));
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uint32_t length = array->Length();
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for (uint32_t i = 0; i < length; ++i) {
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T item;
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if (!Converter<T>::FromV8(isolate,
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array->Get(context, i).ToLocalChecked(), &item))
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return false;
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result.insert(item);
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}
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out->swap(result);
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return true;
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}
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};
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} // namespace gin
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#endif // SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
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