在CMD下键入
C:\Node_JS\MyAwesomeProject>react-native start
运行流程:
C:\Users\Grart\AppData\Roaming\npm\react-native.cmd
C:\Users\Grart\AppData\Roaming\npm\node_modules\react-native-cli\index.js
cli.run();
C:\Node_JS\MyAwesomeProject\node_modules\react-native\cli.js
module.exports = require('./local-cli/cli.js');
C:\Node_JS\MyAwesomeProject\node_modules\react-native\local-cli\cli.js
module.exports = {
run: run,
init: init,
};
C:\Node_JS\MyAwesomeProject\node_modules\react-native\private-cli\src\server\server.js
C:\Node_JS\MyAwesomeProject\node_modules\react-native\private-cli\src\server\runServer.js
function getAppMiddleware(args, config) {
………………………...
return ReactPackager.middleware({
nonPersistent: args.nonPersistent,
projectRoots: args.projectRoots,
blacklistRE: config.getBlacklistRE(),
cacheVersion: '3',
transformModulePath: transformerPath,
assetRoots: args.assetRoots,
assetExts: ['png', 'jpeg', 'jpg'],
resetCache: args.resetCache || args['reset-cache'],
polyfillModuleNames: [
require.resolve(
'../../../Libraries/JavaScriptAppEngine/polyfills/document.js'
),
],
verbose: args.verbose,
});
}
C:\Node_JS\MyAwesomeProject\node_modules\react-native\packager\react-packager\index.js
function createServer(options) {
// the debug module is configured globally, we need to enable debugging
// *before* requiring any packages that use `debug` for logging
if (options.verbose) {
enableDebug();
}
startSocketInterface();
var Server = require('./src/Server');
return new Server(omit(options, ['verbose']));
}
C:\Node_JS\MyAwesomeProject\node_modules\react-native\packager\react-packager\src\Server\index.js
function processRequest(req, res, next) {
…………
const building = this._bundles[optionsJson] || this.buildBundle(options);
this._bundles[optionsJson] = building;
building.then(……
)
…………
}
C:\Node_JS\MyAwesomeProject\node_modules\react-native\packager\react-packager\src\Bundler\index.js
function bundle(main, runModule, sourceMapUrl, isDev, platform) {
const bundle = new Bundle(sourceMapUrl);
const findEventId = Activity.startEvent('find dependencies');
let transformEventId;
return this.getDependencies(main, isDev, platform)
.then(………………
.………………..
}
function getDependencies(main, isDev, platform) {
return this._resolver.getDependencies(main, { dev: isDev, platform });
}
C:\Node_JS\MyAwesomeProject\node_modules\react-native\packager\react-packager\src\DependencyResolver\index.js
HasteDependencyResolver.prototype.getDependencies = function(main, options) {
var opts = getDependenciesValidateOpts(options);
return this._depGraph.getDependencies(main, opts.platform)
.then(
resolutionResponse => {
this._getPolyfillDependencies(opts.dev).reverse().forEach(
polyfill => resolutionResponse.prependDependency(polyfill)
);
return resolutionResponse.finalize();
}
);
};
C:\Node_JS\MyAwesomeProject\node_modules\react-native\packager\react-packager\src\DependencyResolver\DependencyGraph\index
getDependencies(entryPath, platform) {
console.log('call DependencyGraph entryPath='+entryPath);
return this.load()
.then(
() => {
platform = this._getRequestPlatform(entryPath, platform);
const absPath = this._getAbsolutePath(entryPath);
const req = new ResolutionRequest({
platform,
entryPath: absPath,
deprecatedAssetMap: this._deprecatedAssetMap,
hasteMap: this._hasteMap,
helpers: this._helpers,
moduleCache: this._moduleCache,
fastfs: this._fastfs,
});
const response = new ResolutionResponse();
console.log('call ResolutionRequest');
return Promise.all([
req.getOrderedDependencies(response),
req.getAsyncDependencies(response),
]).then(() => response);
}
);
}
C:\Node_JS\MyAwesomeProject\node_modules\react-native\packager\react-packager\src\DependencyResolver\DependencyGraph\ResolutionRequest.js
getOrderedDependencies(response) {….
resolveDependency(fromModule, toModuleName) {….
_resolveNodeDependency(fromModule, toModuleName) {….
_loadAsFile(potentialModulePath, fromModule, toModule) {….
this._fastfs.fileExists(potentialModulePath)