115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#include "ModuleRegistry.h"
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#include "NativeModule.h"
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#ifdef WITH_FBSYSTRACE
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#include <fbsystrace.h>
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using fbsystrace::FbSystraceSection;
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#endif
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namespace facebook {
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namespace react {
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ModuleRegistry::ModuleRegistry(std::vector<std::unique_ptr<NativeModule>> modules)
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: modules_(std::move(modules)) {}
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folly::dynamic ModuleRegistry::moduleDescriptions() {
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folly::dynamic modDescs = folly::dynamic::object;
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for (size_t moduleId = 0; moduleId < modules_.size(); ++moduleId) {
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const auto& module = modules_[moduleId];
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folly::dynamic methodDescs = folly::dynamic::object;
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std::vector<MethodDescriptor> methods;
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{
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#ifdef WITH_FBSYSTRACE
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FbSystraceSection s(TRACE_TAG_REACT_CXX_BRIDGE, "getMethods", "module", module->getName());
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#endif
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methods = module->getMethods();
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}
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for (size_t methodId = 0; methodId < methods.size(); ++methodId) {
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methodDescs.insert(std::move(methods[methodId].name),
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folly::dynamic::object
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("methodID", methodId)
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("type", std::move(methods[methodId].type)));
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}
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folly::dynamic constants = folly::dynamic::array();
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{
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#ifdef WITH_FBSYSTRACE
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FbSystraceSection s(TRACE_TAG_REACT_CXX_BRIDGE, "getConstants", "module", module->getName());
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#endif
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constants = module->getConstants();
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}
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modDescs.insert(module->getName(),
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folly::dynamic::object
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("supportsWebWorkers", module->supportsWebWorkers())
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("moduleID", moduleId)
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("methods", std::move(methodDescs))
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("constants", std::move(constants)));
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}
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return modDescs;
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}
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void ModuleRegistry::callNativeMethod(ExecutorToken token, unsigned int moduleId, unsigned int methodId,
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folly::dynamic&& params, int callId) {
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if (moduleId >= modules_.size()) {
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throw std::runtime_error(
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folly::to<std::string>("moduleId ", moduleId,
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" out of range [0..", modules_.size(), ")"));
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}
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#ifdef WITH_FBSYSTRACE
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if (callId != -1) {
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fbsystrace_end_async_flow(TRACE_TAG_REACT_APPS, "native", callId);
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}
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#endif
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// TODO mhorowitz: systrace
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std::string what;
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try {
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modules_[moduleId]->invoke(token, methodId, std::move(params));
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return;
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} catch (const std::exception& e) {
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what = e.what();
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// fall through;
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} catch (...) {
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// fall through;
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}
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std::string moduleName = modules_[moduleId]->getName();
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auto descs = modules_[moduleId]->getMethods();
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std::string methodName;
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if (methodId < descs.size()) {
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methodName = descs[methodId].name;
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} else {
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methodName = folly::to<std::string>("id ", methodId, " (out of range [0..",
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descs.size(), "))");
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}
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if (what.empty()) {
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throw std::runtime_error(
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folly::to<std::string>("Unknown native exception in module '", moduleName,
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"' method '", methodName, "'"));
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} else {
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throw std::runtime_error(
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folly::to<std::string>("Native exception in module '", moduleName,
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"' method '", methodName, "': ", what));
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}
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}
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MethodCallResult ModuleRegistry::callSerializableNativeHook(ExecutorToken token, unsigned int moduleId, unsigned int methodId, folly::dynamic&& params) {
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if (moduleId >= modules_.size()) {
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throw std::runtime_error(
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folly::to<std::string>("moduleId ", moduleId,
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" out of range [0..", modules_.size(), ")"));
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}
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return modules_[moduleId]->callSerializableNativeHook(token, methodId, std::move(params));
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}
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}}
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