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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/bindings/core/v8/iterable.h"
#include <array>
#include "third_party/blink/renderer/platform/bindings/v8_binding.h"
#include "v8/include/v8-container.h"
#include "v8/include/v8-object.h"
#include "v8/include/v8-primitive.h"
namespace blink {
namespace bindings {
v8::Local<v8::Object> ESCreateIterResultObject(ScriptState* script_state,
bool done,
v8::Local<v8::Value> value) {
static constexpr std::string_view properties[] = {"done", "value"};
v8::Isolate* const isolate = script_state->GetIsolate();
auto* per_isolate_data = V8PerIsolateData::From(isolate);
v8::MaybeLocal<v8::DictionaryTemplate> maybe_template =
per_isolate_data->FindV8DictionaryTemplate(properties);
v8::Local<v8::DictionaryTemplate> just_template;
if (!maybe_template.IsEmpty()) {
just_template = maybe_template.ToLocalChecked();
} else {
just_template = v8::DictionaryTemplate::New(isolate, properties);
per_isolate_data->AddV8DictionaryTemplate(properties, just_template);
}
v8::MaybeLocal<v8::Value> values[] = {v8::Boolean::New(isolate, done), value};
return just_template->NewInstance(script_state->GetContext(), values);
}
v8::Local<v8::Object> ESCreateIterResultObject(ScriptState* script_state,
bool done,
v8::Local<v8::Value> item1,
v8::Local<v8::Value> item2) {
v8::Isolate* isolate = script_state->GetIsolate();
v8::Local<v8::Value> items[] = {item1, item2};
v8::Local<v8::Array> value = v8::Array::New(isolate, items, std::size(items));
return ESCreateIterResultObject(script_state, done, value);
}
} // namespace bindings
bool V8UnpackIterationResult(ScriptState* script_state,
v8::Local<v8::Object> sync_iteration_result,
v8::Local<v8::Value>* out_value,
bool* out_done) {
v8::Isolate* isolate = script_state->GetIsolate();
v8::Local<v8::Context> context = script_state->GetContext();
v8::TryCatch try_block(isolate);
if (!sync_iteration_result->Get(context, V8AtomicString(isolate, "value"))
.ToLocal(out_value)) {
return false;
}
v8::Local<v8::Value> done_value;
if (!sync_iteration_result->Get(context, V8AtomicString(isolate, "done"))
.ToLocal(&done_value)) {
return false;
}
*out_done = done_value->BooleanValue(isolate);
return true;
}
} // namespace blink
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