react-native/ReactCommon/cxxreact/ModuleRegistry.cpp

123 lines
3.7 KiB
C++

// Copyright 2004-present Facebook. All Rights Reserved.
#include "ModuleRegistry.h"
#include "NativeModule.h"
#include "SystraceSection.h"
namespace facebook {
namespace react {
namespace {
std::string normalizeName(std::string name) {
// TODO mhorowitz #10487027: This is super ugly. We should just
// change iOS to emit normalized names, drop the "RK..." from
// names hardcoded in Android, and then delete this and the
// similar hacks in js.
if (name.compare(0, 3, "RCT") == 0) {
return name.substr(3);
} else if (name.compare(0, 2, "RK") == 0) {
return name.substr(2);
}
return name;
}
}
ModuleRegistry::ModuleRegistry(std::vector<std::unique_ptr<NativeModule>> modules)
: modules_(std::move(modules)) {}
std::vector<std::string> ModuleRegistry::moduleNames() {
std::vector<std::string> names;
for (size_t i = 0; i < modules_.size(); i++) {
std::string name = normalizeName(modules_[i]->getName());
modulesByName_[name] = i;
names.push_back(std::move(name));
}
return names;
}
folly::dynamic ModuleRegistry::getConfig(const std::string& name) {
SystraceSection s("getConfig", "module", name);
auto it = modulesByName_.find(name);
if (it == modulesByName_.end()) {
return nullptr;
}
CHECK(it->second < modules_.size());
NativeModule* module = modules_[it->second].get();
// string name, [object constants,] array methodNames (methodId is index), [array promiseMethodIds], [array syncMethodIds]
folly::dynamic config = folly::dynamic::array(name);
{
SystraceSection s("getConstants");
config.push_back(module->getConstants());
}
{
SystraceSection s("getMethods");
std::vector<MethodDescriptor> methods = module->getMethods();
folly::dynamic methodNames = folly::dynamic::array;
folly::dynamic promiseMethodIds = folly::dynamic::array;
folly::dynamic syncMethodIds = folly::dynamic::array;
for (auto& descriptor : methods) {
// TODO: #10487027 compare tags instead of doing string comparison?
methodNames.push_back(std::move(descriptor.name));
if (descriptor.type == "promise") {
promiseMethodIds.push_back(methodNames.size() - 1);
} else if (descriptor.type == "sync") {
syncMethodIds.push_back(methodNames.size() - 1);
}
}
if (!methodNames.empty()) {
config.push_back(std::move(methodNames));
if (!promiseMethodIds.empty() || !syncMethodIds.empty()) {
config.push_back(std::move(promiseMethodIds));
if (!syncMethodIds.empty()) {
config.push_back(std::move(syncMethodIds));
}
}
}
}
if (config.size() == 1) {
// no constants or methods
return nullptr;
} else {
return config;
}
}
void ModuleRegistry::callNativeMethod(ExecutorToken token, unsigned int moduleId, unsigned int methodId,
folly::dynamic&& params, int callId) {
if (moduleId >= modules_.size()) {
throw std::runtime_error(
folly::to<std::string>("moduleId ", moduleId,
" out of range [0..", modules_.size(), ")"));
}
#ifdef WITH_FBSYSTRACE
if (callId != -1) {
fbsystrace_end_async_flow(TRACE_TAG_REACT_APPS, "native", callId);
}
#endif
modules_[moduleId]->invoke(token, methodId, std::move(params));
}
MethodCallResult ModuleRegistry::callSerializableNativeHook(ExecutorToken token, unsigned int moduleId, unsigned int methodId, folly::dynamic&& params) {
if (moduleId >= modules_.size()) {
throw std::runtime_error(
folly::to<std::string>("moduleId ", moduleId,
" out of range [0..", modules_.size(), ")"));
}
return modules_[moduleId]->callSerializableNativeHook(token, methodId, std::move(params));
}
}}