electron/shell/renderer/api/context_bridge/object_cache.cc
2023-06-14 11:07:18 -07:00

47 lines
1.4 KiB
C++

// Copyright (c) 2020 Slack Technologies, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/renderer/api/context_bridge/object_cache.h"
#include "shell/common/api/object_life_monitor.h"
namespace electron::api::context_bridge {
ObjectCache::ObjectCache() = default;
ObjectCache::~ObjectCache() = default;
void ObjectCache::CacheProxiedObject(v8::Local<v8::Value> from,
v8::Local<v8::Value> proxy_value) {
if (from->IsObject() && !from->IsNullOrUndefined()) {
auto obj = from.As<v8::Object>();
int hash = obj->GetIdentityHash();
proxy_map_[hash].emplace_front(from, proxy_value);
}
}
v8::MaybeLocal<v8::Value> ObjectCache::GetCachedProxiedObject(
v8::Local<v8::Value> from) const {
if (!from->IsObject() || from->IsNullOrUndefined())
return v8::MaybeLocal<v8::Value>();
auto obj = from.As<v8::Object>();
int hash = obj->GetIdentityHash();
auto iter = proxy_map_.find(hash);
if (iter == proxy_map_.end())
return v8::MaybeLocal<v8::Value>();
auto& list = iter->second;
for (const auto& pair : list) {
auto from_cmp = pair.first;
if (from_cmp == from) {
if (pair.second.IsEmpty())
return v8::MaybeLocal<v8::Value>();
return pair.second;
}
}
return v8::MaybeLocal<v8::Value>();
}
} // namespace electron::api::context_bridge