webpack/lib/NormalModule.js at bugfix/fix_stats_when_passed_array · codeinvain/webpack · GitHub

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

Author Tobias Koppers @sokra

var path = require("path");

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

var SourceMapSource = require("webpack-sources").SourceMapSource;

var OriginalSource = require("webpack-sources").OriginalSource;

var RawSource = require("webpack-sources").RawSource;

var ReplaceSource = require("webpack-sources").ReplaceSource;

var CachedSource = require("webpack-sources").CachedSource;

var LineToLineMappedSource = require("webpack-sources").LineToLineMappedSource;

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

var TemplateArgumentDependency = require("./dependencies/TemplateArgumentDependency");

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

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

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

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

var runLoaders = require("loader-runner").runLoaders;

var getContext = require("loader-runner").getContext;

function asString(buf) {

if(Buffer.isBuffer(buf)) {

return buf.toString("utf-8");

}

return buf;

}

function NormalModule(request, userRequest, rawRequest, loaders, resource, parser) {

Module.call(this);

this.request = request;

this.userRequest = userRequest;

this.rawRequest = rawRequest;

this.parser = parser;

this.resource = resource;

this.context = getContext(resource);

this.loaders = loaders;

this.fileDependencies = [];

this.contextDependencies = [];

this.warnings = [];

this.errors = [];

this.error = null;

this._source = null;

this.assets = {};

this.built = false;

this._cachedSource = null;

}

module.exports = NormalModule;

NormalModule.prototype = Object.create(Module.prototype);

NormalModule.prototype.constructor = NormalModule;

NormalModule.prototype.identifier = function() {

return this.request;

};

NormalModule.prototype.readableIdentifier = function(requestShortener) {

return requestShortener.shorten(this.userRequest);

};

function contextify(options, request) {

return request.split("!").map(function(r) {

var rp = path.relative(options.context, r);

if(path.sep === "\\")

rp = rp.replace(/\\/g, "/");

if(rp.indexOf("../") !== 0)

rp = "./" + rp;

return rp;

}).join("!");

}

NormalModule.prototype.libIdent = function(options) {

return contextify(options, this.userRequest);

};

NormalModule.prototype.nameForCondition = function() {

var idx = this.resource.indexOf("?");

if(idx >= 0) return this.resource.substr(0, idx);

return this.resource;

};

NormalModule.prototype.doBuild = function doBuild(options, compilation, resolver, fs, callback) {

this.cacheable = false;

var module = this;

var loaderContext = {

version: 2,

emitWarning: function(warning) {

module.warnings.push(new ModuleWarning(module, warning));

emitError: function(error) {

module.errors.push(new ModuleError(module, error));

exec: function(code, filename) {

var Module = require("module");

var m = new Module(filename, module);

m.paths = Module._nodeModulePaths(module.context);

m.filename = filename;

m._compile(code, filename);

return m.exports;

resolve: function(context, request, callback) {

resolver.resolve({}, context, request, callback);

resolveSync: function(context, request) {

return resolver.resolveSync({}, context, request);

options: options

};

loaderContext.webpack = true;

loaderContext.sourceMap = !!this.useSourceMap;

loaderContext.emitFile = function(name, content, sourceMap) {

if(typeof sourceMap === "string") {

this.assets[name] = new OriginalSource(content, sourceMap);

} else if(sourceMap) {

this.assets[name] = new SourceMapSource(content, name, sourceMap);

} else {

this.assets[name] = new RawSource(content);

}

}.bind(this);

loaderContext._module = this;

loaderContext._compilation = compilation;

loaderContext._compiler = compilation.compiler;

loaderContext.fs = fs;

compilation.applyPlugins("normal-module-loader", loaderContext, this);

if(options.loader)

for(var key in options.loader)

loaderContext[key] = options.loader[key];

runLoaders({

resource: this.resource,

loaders: this.loaders,

context: loaderContext,

readResource: fs.readFile.bind(fs)

}, function(err, result) {

if(result) {

module.cacheable = result.cacheable;

module.fileDependencies = result.fileDependencies;

module.contextDependencies = result.contextDependencies;

}

if(err) {

return callback(module.error = new ModuleBuildError(module, err));

}

var resourceBuffer = result.resourceBuffer;

var source = result.result[0];

var sourceMap = result.result[1];

if(!Buffer.isBuffer(source) && typeof source !== "string") {

return callback(module.error = new ModuleBuildError(module, new Error("Final loader didn't return a Buffer or String")));

}

source = asString(source);

if(module.identifier && module.lineToLine && resourceBuffer) {

module._source = new LineToLineMappedSource(source, module.identifier(),

asString(resourceBuffer));

} else if(module.identifier && module.useSourceMap && sourceMap) {

module._source = new SourceMapSource(source, module.identifier(), sourceMap);

} else if(module.identifier) {

module._source = new OriginalSource(source, module.identifier());

} else {

module._source = new RawSource(source);

}

return callback();

});

};

NormalModule.prototype.disconnect = function disconnect() {

this.built = false;

Module.prototype.disconnect.call(this);

};

NormalModule.prototype.build = function build(options, compilation, resolver, fs, callback) {

var _this = this;

_this.buildTimestamp = new Date().getTime();

_this.built = true;

_this._source = null;

_this.error = null;

_this.errors.length = 0;

_this.warnings.length = 0;

return _this.doBuild(options, compilation, resolver, fs, function(err) {

_this.dependencies.length = 0;

_this.variables.length = 0;

_this.blocks.length = 0;

_this._cachedSource = null;

if(err) return setError(err);

if(options.module && options.module.noParse) {

var testRegExp = function testRegExp(regExp) {

return typeof regExp === "string" ?

_this.request.indexOf(regExp) === 0 :

regExp.test(_this.request);

}

if(Array.isArray(options.module.noParse)) {

if(options.module.noParse.some(testRegExp, _this))

return callback();

} else if(testRegExp.call(_this, options.module.noParse)) {

return callback();

}

try {

_this.parser.parse(_this._source.source(), {

current: _this,

module: _this,

compilation: compilation,

options: options

});

} catch(e) {

var source = _this._source.source();

return setError(_this.error = new ModuleParseError(_this, source, e));

}

return callback();

});

function setError(err) {

_this.meta = null;

if(_this.error) {

_this.errors.push(_this.error);

_this._source = new RawSource("throw new Error(" + JSON.stringify(_this.error.message) + ");");

} else {

_this._source = new RawSource("throw new Error('Module build failed');");

}

callback();

}

};

NormalModule.prototype.source = function(dependencyTemplates, outputOptions, requestShortener) {

var hash = require("crypto").createHash("md5");

this.updateHash(hash);

hash = hash.digest("hex");

if(this._cachedSource && this._cachedSource.hash === hash) {

return this._cachedSource.source;

}

var _source = this._source;

if(!_source) return new RawSource("throw new Error('No source available');");

var source = new ReplaceSource(_source);

this._cachedSource = {

source: source,

hash: hash

};

var topLevelBlock = this;

function doDep(dep) {

var template = dependencyTemplates.get(dep.constructor);

if(!template) throw new Error("No template for dependency: " + dep.constructor.name);

template.apply(dep, source, outputOptions, requestShortener, dependencyTemplates);

}

function doVariable(availableVars, vars, variable) {

var name = variable.name;

var expr = variable.expressionSource(dependencyTemplates, outputOptions, requestShortener);

function isEqual(v) {

return v.name === name && v.expression.source() === expr.source();

}

if(availableVars.some(isEqual)) return;

vars.push({

name: name,

expression: expr

});

}

function doBlock(availableVars, block) {

block.dependencies.forEach(doDep);

var vars = [];

if(block.variables.length > 0) {

block.variables.forEach(doVariable.bind(null, availableVars, vars));

var varNames = [];

var varExpressions = [];

var varStartCode = "";

var varEndCode = "";

var emitFunction = function emitFunction() {

if(varNames.length === 0) return;

varStartCode += "/* WEBPACK VAR INJECTION */(function(" + varNames.join(", ") + ") {";

// exports === this in the topLevelBlock, but exports do compress better...

varEndCode = (topLevelBlock === block ? "}.call(exports, " : "}.call(this, ") +

varExpressions.map(function(e) {

return e.source();

}).join(", ") + "))" + varEndCode;

varNames.length = 0;

varExpressions.length = 0;

}

vars.forEach(function(v) {

if(varNames.indexOf(v.name) >= 0) emitFunction();

varNames.push(v.name);

varExpressions.push(v.expression);

});

emitFunction();

var start = block.range ? block.range[0] : -10;

var end = block.range ? block.range[1] : (_source.size() + 1);

if(varStartCode) source.insert(start + 0.5, varStartCode);

if(varEndCode) source.insert(end + 0.5, "\n/* WEBPACK VAR INJECTION */" + varEndCode);

}

block.blocks.forEach(doBlock.bind(null, availableVars.concat(vars)));

}

doBlock([], this);

return new CachedSource(source);

};

NormalModule.prototype.needRebuild = function needRebuild(fileTimestamps, contextTimestamps) {

var timestamp = 0;

this.fileDependencies.forEach(function(file) {

var ts = fileTimestamps[file];

if(!ts) timestamp = Infinity;

if(ts > timestamp) timestamp = ts;

});

this.contextDependencies.forEach(function(context) {

var ts = contextTimestamps[context];

if(!ts) timestamp = Infinity;

if(ts > timestamp) timestamp = ts;

});

return timestamp >= this.buildTimestamp;

};

NormalModule.prototype.size = function() {

return this._source ? this._source.size() : -1;

};

NormalModule.prototype.updateHash = function(hash) {

if(this._source) {

hash.update("source");

this._source.updateHash(hash);

} else

hash.update("null");

hash.update("meta");

hash.update(JSON.stringify(this.meta));

Module.prototype.updateHash.call(this, hash);

};

NormalModule.prototype.getSourceHash = function() {

if(!this._source) return "";

var hash = require("crypto").createHash("md5");

hash.update(this._source.source());

return hash.digest("hex");

};

NormalModule.prototype.getAllModuleDependencies = function() {

var list = [];

function doDep(dep) {

if(dep.module && list.indexOf(dep.module) < 0)

list.push(dep.module);

}

function doVariable(variable) {

variable.dependencies.forEach(doDep);

}

function doBlock(block) {

block.variables.forEach(doVariable);

block.dependencies.forEach(doDep);

block.blocks.forEach(doBlock);

}

doBlock(this);

return list;

};

NormalModule.prototype.createTemplate = function(keepModules, roots) {

roots.sort(function(a, b) {

var ia = a.identifier();

var ib = b.identifier();

if(ia < ib) return -1;

if(ib < ia) return 1;

return 0;

});

var template = new NormalModule("", "", "", [], "", null);

template._source = this._source;

template.built = this.built;

template.templateModules = keepModules;

template._templateOrigin = this;

template.readableIdentifier = function() {

return "template of " + this._templateOrigin.id + " referencing " + keepModules.map(function(m) {

return m.id;

}).join(", ");

};

template.identifier = function() {

var array = roots.map(function(m) {

return m.identifier();

});

array.sort();

return array.join("|");

};

var args = template.arguments = [];

function doDeps(deps) {

return deps.map(function(dep) {

if(dep.module && keepModules.indexOf(dep.module) < 0) {

var argName = "__webpack_module_template_argument_" + args.length + "__";

args.push(argName);

return new TemplateArgumentDependency(argName, dep);

} else {

return dep;

}

});

}

function doBlock(block, newBlock) {

block.variables.forEach(function(variable) {

var newDependencies = doDeps(variable.dependencies);

newBlock.addVariable(variable.name, variable.expression, newDependencies);

});

newBlock.dependencies = doDeps(block.dependencies);

block.blocks.forEach(function(childBlock) {

var newChildBlock = new AsyncDependenciesBlock(childBlock.name, childBlock.module, childBlock.loc);

newBlock.addBlock(newChildBlock);

doBlock(childBlock, newChildBlock);

});

}

doBlock(this, template);

return template;

};

NormalModule.prototype.getTemplateArguments = function(keepModules) {

var list = [];

function doDep(dep) {

if(dep.module && keepModules.indexOf(dep.module) < 0)

list.push(dep.module);

}

function doVariable(variable) {

variable.dependencies.forEach(doDep);

}

function doBlock(block) {

block.variables.forEach(doVariable);

block.dependencies.forEach(doDep);

block.blocks.forEach(doBlock);

}

doBlock(this);

return list;

};

webpack/lib/NormalModule.js at bugfix/fix_stats_when_passed_array · codeinvain/webpack · GitHub

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