73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
|
// Copyright 2004-present Facebook. All Rights Reserved.
|
||
|
|
|
||
|
|
#include "JSCNativeModules.h"
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
#include "Platform.h"
|
||
|
|
|
||
|
|
namespace facebook {
|
||
|
|
namespace react {
|
||
|
|
|
||
|
|
JSCNativeModules::JSCNativeModules(std::shared_ptr<ModuleRegistry> moduleRegistry) :
|
||
|
|
m_moduleRegistry(std::move(moduleRegistry)) {}
|
||
|
|
|
||
|
|
JSValueRef JSCNativeModules::getModule(JSContextRef context, JSStringRef jsName) {
|
||
|
|
if (!m_moduleRegistry) {
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string moduleName = String::ref(context, jsName).str();
|
||
|
|
|
||
|
|
const auto it = m_objects.find(moduleName);
|
||
|
|
if (it != m_objects.end()) {
|
||
|
|
return static_cast<JSObjectRef>(it->second);
|
||
|
|
}
|
||
|
|
|
||
|
|
auto module = createModule(moduleName, context);
|
||
|
|
if (!module.hasValue()) {
|
||
|
|
// Allow lookup to continue in the objects own properties, which allows for overrides of NativeModules
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Protect since we'll be holding on to this value, even though JS may not
|
||
|
|
module->makeProtected();
|
||
|
|
|
||
|
|
auto result = m_objects.emplace(std::move(moduleName), std::move(*module)).first;
|
||
|
|
return static_cast<JSObjectRef>(result->second);
|
||
|
|
}
|
||
|
|
|
||
|
|
void JSCNativeModules::reset() {
|
||
|
|
m_genNativeModuleJS = nullptr;
|
||
|
|
m_objects.clear();
|
||
|
|
}
|
||
|
|
|
||
|
|
folly::Optional<Object> JSCNativeModules::createModule(const std::string& name, JSContextRef context) {
|
||
|
|
ReactMarker::logTaggedMarker(ReactMarker::NATIVE_MODULE_SETUP_START, name.c_str());
|
||
|
|
|
||
|
|
if (!m_genNativeModuleJS) {
|
||
|
|
auto global = Object::getGlobalObject(context);
|
||
|
|
m_genNativeModuleJS = global.getProperty("__fbGenNativeModule").asObject();
|
||
|
|
m_genNativeModuleJS->makeProtected();
|
||
|
|
}
|
||
|
|
|
||
|
|
auto result = m_moduleRegistry->getConfig(name);
|
||
|
|
if (!result.hasValue()) {
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
Value moduleInfo = m_genNativeModuleJS->callAsFunction({
|
||
|
|
Value::fromDynamic(context, result->config),
|
||
|
|
Value::makeNumber(context, result->index)
|
||
|
|
});
|
||
|
|
CHECK(!moduleInfo.isNull()) << "Module returned from genNativeModule is null";
|
||
|
|
|
||
|
|
folly::Optional<Object> module(moduleInfo.asObject().getProperty("module").asObject());
|
||
|
|
|
||
|
|
ReactMarker::logTaggedMarker(ReactMarker::NATIVE_MODULE_SETUP_STOP, name.c_str());
|
||
|
|
|
||
|
|
return module;
|
||
|
|
}
|
||
|
|
|
||
|
|
} }
|