68 lines
2 KiB
C++
68 lines
2 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 "gin/converter.h"
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namespace gin {
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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 <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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