webpack/lib/NormalModuleFactory.js at master · codeinvain/webpack · GitHub

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MIT License http://www.opensource.org/licenses/mit-license.php

Author Tobias Koppers @sokra

var async = require("async");

var objectAssign = require('object-assign');

var Tapable = require("tapable");

var NormalModule = require("./NormalModule");

var RawModule = require("./RawModule");

var Parser = require("./Parser");

var RuleSet = require("./RuleSet");

function loaderToIdent(data) {

if(!data.options)

return data.loader;

if(typeof data.options === "string")

return data.loader + "?" + data.options;

if(typeof data.options !== "object")

throw new Error("loader options must be string or object");

if(data.options.ident)

return data.loader + "??" + data.options.ident;

return data.loader + "?" + JSON.stringify(data.options);

}

function identToLoaderRequest(resultString) {

var idx = resultString.indexOf("?");

var options;

if(idx >= 0) {

options = resultString.substr(idx + 1);

resultString = resultString.substr(0, idx);

return {

loader: resultString,

options: options

};

} else {

return {

loader: resultString

}

function NormalModuleFactory(context, resolvers, options) {

Tapable.call(this);

this.resolvers = resolvers;

this.ruleSet = new RuleSet(options.rules || options.loaders);

this.cachePredicate = typeof options.unsafeCache === "function" ? options.unsafeCache : Boolean.bind(null, options.unsafeCache);

this.context = context || "";

this.parserCache = {};

this.plugin("factory", function() {

var _this = this;

return function(result, callback) {

var resolver = _this.applyPluginsWaterfall0("resolver", null);

// Ignored

if(!resolver) return callback();

resolver(result, function onDoneResolving(err, data) {

if(err) return callback(err);

// Ignored

if(!data) return callback();

// direct module

if(typeof data.source === "function")

return callback(null, data);

_this.applyPluginsAsyncWaterfall("after-resolve", data, function(err, result) {

if(err) return callback(err);

// Ignored

if(!result) return callback();

var createdModule = _this.applyPluginsBailResult("create-module", result);

if(!createdModule) {

if(!result.request) {

return callback(new Error("Empty dependency (no request)"));

}

createdModule = new NormalModule(

result.request,

result.userRequest,

result.rawRequest,

result.loaders,

result.resource,

result.parser

);

}

createdModule = _this.applyPluginsWaterfall0("module", createdModule);

return callback(null, createdModule);

});

};

});

this.plugin("resolver", function() {

var _this = this;

return function(data, callback) {

var contextInfo = data.contextInfo;

var context = data.context;

var request = data.request;

var resolveContextInfo = {};

var noAutoLoaders = /^-?!/.test(request);

var noPrePostAutoLoaders = /^!!/.test(request);

var noPostAutoLoaders = /^-!/.test(request);

var elements = request.replace(/^-?!+/, "").replace(/!!+/g, "!").split("!");

var resource = elements.pop();

elements = elements.map(identToLoaderRequest);

async.parallel([

function(callback) {

_this.resolveRequestArray(resolveContextInfo, context, elements, _this.resolvers.loader, callback);

function(callback) {

if(resource === "" || resource[0] === "?")

return callback(null, resource);

_this.resolvers.normal.resolve(resolveContextInfo, context, resource, function(err, result) {

if(err) return callback(err);

callback(null, result);

});

}

], function(err, results) {

if(err) return callback(err);

var loaders = results[0];

resource = results[1];

// translate option idents

try {

loaders.forEach(function(item) {

if(typeof item.options === "string" && /^\?/.test(item.options)) {

item.options = _this.ruleSet.findOptionsByIdent(item.options.substr(1));

}

})

} catch(e) {

return callback(e);

}

if(resource === false)

return callback(null,

new RawModule("/* (ignored) */",

"ignored " + context + " " + request,

request + " (ignored)")); // ignored

var userRequest = loaders.map(loaderToIdent).concat([resource]).join("!");

var resourcePath = resource;

var resourceQuery = "";

var queryIndex = resourcePath.indexOf("?");

if(queryIndex >= 0) {

resourceQuery = resourcePath.substr(queryIndex);

resourcePath = resourcePath.substr(0, queryIndex);

}

var result = _this.ruleSet.exec({

resource: resourcePath,

resourceQuery: resourceQuery,

issuer: contextInfo.issuer

});

var settings = {};

var useLoadersPost = [];

var useLoaders = [];

var useLoadersPre = [];

result.forEach(function(r) {

if(r.type === "use") {

if(r.enforce === "post" && !noPostAutoLoaders && !noPrePostAutoLoaders)

useLoadersPost.push(r.value);

else if(r.enforce === "pre" && !noPrePostAutoLoaders)

useLoadersPre.push(r.value);

else if(!r.enforce && !noAutoLoaders && !noPrePostAutoLoaders)

useLoaders.push(r.value);

} else {

settings[r.type] = r.value;

}

});

async.parallel([

_this.resolveRequestArray.bind(_this, resolveContextInfo, _this.context, useLoadersPost, _this.resolvers.loader),

_this.resolveRequestArray.bind(_this, resolveContextInfo, _this.context, useLoaders, _this.resolvers.loader),

_this.resolveRequestArray.bind(_this, resolveContextInfo, _this.context, useLoadersPre, _this.resolvers.loader)

], function(err, results) {

if(err) return callback(err);

loaders = results[0].concat(loaders).concat(results[1]).concat(results[2]);

process.nextTick(onDoneResolving);

});

function onDoneResolving() {

callback(null, {

context: context,

request: loaders.map(loaderToIdent).concat([resource]).join("!"),

dependencies: data.dependencies,

userRequest: userRequest,

rawRequest: request,

loaders: loaders,

resource: resource,

parser: _this.getParser(settings.parser)

});

}

});

};

});

}

module.exports = NormalModuleFactory;

NormalModuleFactory.prototype = Object.create(Tapable.prototype);

NormalModuleFactory.prototype.constructor = NormalModuleFactory;

NormalModuleFactory.prototype.create = function(data, callback) {

var _this = this;

var dependencies = data.dependencies;

var cacheEntry = dependencies[0].__NormalModuleFactoryCache;

if(cacheEntry) return callback(null, cacheEntry);

var context = data.context || this.context;

var request = dependencies[0].request;

var contextInfo = data.contextInfo || {};

_this.applyPluginsAsyncWaterfall("before-resolve", {

contextInfo: contextInfo,

context: context,

request: request,

dependencies: dependencies

}, function(err, result) {

if(err) return callback(err);

// Ignored

if(!result) return callback();

var factory = _this.applyPluginsWaterfall0("factory", null);

// Ignored

if(!factory) return callback();

factory(result, function(err, module) {

if(err) return callback(err);

if(module && _this.cachePredicate(module)) {

dependencies.forEach(function(d) {

d.__NormalModuleFactoryCache = module;

});

}

callback(null, module);

});

};

NormalModuleFactory.prototype.resolveRequestArray = function resolveRequestArray(contextInfo, context, array, resolver, callback) {

if(array.length === 0) return callback(null, []);

async.map(array, function(item, callback) {

resolver.resolve(contextInfo, context, item.loader, function(err, result) {

if(err && /^[^/]*$/.test(item.loader) && !/-loader$/.test(item.loader)) {

return resolver.resolve(contextInfo, context, item.loader + "-loader", function(err2) {

if(!err2) {

err.message = err.message + "\n" +

"BREAKING CHANGE: It's no longer allowed to omit the '-loader' suffix when using loaders.\n" +

" You need to specify '" + item.loader + "-loader' instead of '" + item.loader + "'.";

}

callback(err);

});

}

if(err) return callback(err);

var optionsOnly = item.options ? {

options: item.options

} : undefined;

return callback(null, objectAssign({}, item, identToLoaderRequest(result), optionsOnly));

});

}, callback);

};

NormalModuleFactory.prototype.getParser = function getParser(parserOptions) {

var ident = "null"

if(parserOptions) {

if(parserOptions.ident)

ident = parserOptions.ident;

else

ident = JSON.stringify(parserOptions);

}

var parser = this.parserCache[ident];

if(parser)

return parser;

return this.parserCache[ident] = this.createParser(parserOptions);

};

NormalModuleFactory.prototype.createParser = function createParser(parserOptions) {

var parser = new Parser();

this.applyPlugins2("parser", parser, parserOptions || {});

return parser;

};

webpack/lib/NormalModuleFactory.js at master · codeinvain/webpack · GitHub

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