mirror of
https://github.com/zhigang1992/react-native.git
synced 2026-04-07 09:27:29 +08:00
1eedf05651
Summary: Makes the delta bundle data structures more consistent. The changes are as follows: * There are now two types of JSON bundles that can be downloaded from the delta endpoint. Base bundles (`Bundle` type), and Delta bundles (`DeltaBundle` type). * The `reset` boolean is renamed to `base`. * `pre` and `post` properties are now strings. * Only `Bundle` can define `pre` and `post` properties. * The `delta` property is renamed to `modules`. * Deleted modules are now listed inside of the `deleted` property, which is only defined by `DeltaBundle`. Reviewed By: mjesun Differential Revision: D10446831 fbshipit-source-id: 40e229a2811d48950f0bad8dd341ece189089e9b
73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
#include "JSDeltaBundleClient.h"
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#include <sstream>
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#include <folly/Memory.h>
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namespace facebook {
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namespace react {
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namespace {
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std::string startupCode(const folly::dynamic *pre, const folly::dynamic *post) {
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std::ostringstream startupCode;
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for (auto section : {pre, post}) {
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if (section != nullptr) {
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startupCode << section->getString() << '\n';
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}
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}
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return startupCode.str();
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}
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} // namespace
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void JSDeltaBundleClient::patch(const folly::dynamic& delta) {
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auto const base = delta.get_ptr("base");
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if (base != nullptr && base->asBool()) {
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clear();
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auto const pre = delta.get_ptr("pre");
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auto const post = delta.get_ptr("post");
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startupCode_ = startupCode(pre, post);
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} else {
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const folly::dynamic *deleted = delta.get_ptr("deleted");
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if (deleted != nullptr) {
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for (const folly::dynamic id : *deleted) {
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modules_.erase(id.getInt());
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}
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}
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}
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const folly::dynamic *modules = delta.get_ptr("modules");
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if (modules != nullptr) {
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for (const folly::dynamic pair : *modules) {
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auto id = pair[0].getInt();
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auto module = pair[1];
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modules_.emplace(id, module.getString());
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}
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}
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}
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JSModulesUnbundle::Module JSDeltaBundleClient::getModule(uint32_t moduleId) const {
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auto search = modules_.find(moduleId);
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if (search != modules_.end()) {
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return {folly::to<std::string>(search->first, ".js"), search->second};
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}
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throw JSModulesUnbundle::ModuleNotFound(moduleId);
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}
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std::unique_ptr<const JSBigString> JSDeltaBundleClient::getStartupCode() const {
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return folly::make_unique<JSBigStdString>(startupCode_);
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}
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void JSDeltaBundleClient::clear() {
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modules_.clear();
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startupCode_.clear();
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}
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} // namespace react
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} // namespace facebook
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