webpack/lib/Compilation.js

1153 lines
32 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var async = require("async");
var Tapable = require("tapable");
var EntryModuleNotFoundError = require("./EntryModuleNotFoundError");
var ModuleNotFoundError = require("./ModuleNotFoundError");
var ModuleDependencyWarning = require("./ModuleDependencyWarning");
var Module = require("./Module");
var ArrayMap = require("./ArrayMap");
var Chunk = require("./Chunk");
var Entrypoint = require("./Entrypoint");
var Stats = require("./Stats");
var MainTemplate = require("./MainTemplate");
var ChunkTemplate = require("./ChunkTemplate");
var HotUpdateChunkTemplate = require("./HotUpdateChunkTemplate");
var ModuleTemplate = require("./ModuleTemplate");
var Dependency = require("./Dependency");
var ChunkRenderError = require("./ChunkRenderError");
var CachedSource = require("webpack-sources").CachedSource;
function Compilation(compiler) {
Tapable.call(this);
this.compiler = compiler;
this.resolvers = compiler.resolvers;
this.inputFileSystem = compiler.inputFileSystem;
var options = this.options = compiler.options;
this.outputOptions = options && options.output;
this.bail = options && options.bail;
this.profile = options && options.profile;
this.performance = options && options.performance;
this.mainTemplate = new MainTemplate(this.outputOptions);
this.chunkTemplate = new ChunkTemplate(this.outputOptions);
this.hotUpdateChunkTemplate = new HotUpdateChunkTemplate(this.outputOptions);
this.moduleTemplate = new ModuleTemplate(this.outputOptions);
this.entries = [];
this.preparedChunks = [];
this.entrypoints = {};
this.chunks = [];
this.namedChunks = {};
this.modules = [];
this._modules = {};
this.cache = null;
this.records = null;
this.nextFreeModuleIndex = undefined;
this.nextFreeModuleIndex2 = undefined;
this.additionalChunkAssets = [];
this.assets = {};
this.errors = [];
this.warnings = [];
this.children = [];
this.dependencyFactories = new ArrayMap();
this.dependencyTemplates = new ArrayMap();
}
module.exports = Compilation;
Compilation.prototype = Object.create(Tapable.prototype);
Compilation.prototype.constructor = Compilation;
Compilation.prototype.templatesPlugin = function(name, fn) {
this.mainTemplate.plugin(name, fn);
this.chunkTemplate.plugin(name, fn);
};
Compilation.prototype.addModule = function(module, cacheGroup) {
cacheGroup = cacheGroup || "m";
var identifier = module.identifier();
if(this._modules[identifier]) {
return false;
}
if(this.cache && this.cache[cacheGroup + identifier]) {
var cacheModule = this.cache[cacheGroup + identifier];
var rebuild = true;
if(!cacheModule.error && cacheModule.cacheable && this.fileTimestamps && this.contextTimestamps) {
rebuild = cacheModule.needRebuild(this.fileTimestamps, this.contextTimestamps);
}
if(!rebuild) {
cacheModule.disconnect();
this._modules[identifier] = cacheModule;
this.modules.push(cacheModule);
cacheModule.errors.forEach(function(err) {
this.errors.push(err);
}, this);
cacheModule.warnings.forEach(function(err) {
this.warnings.push(err);
}, this);
return cacheModule;
} else {
module.lastId = cacheModule.id;
}
}
module.unbuild();
this._modules[identifier] = module;
if(this.cache) {
this.cache[cacheGroup + identifier] = module;
}
this.modules.push(module);
return true;
};
Compilation.prototype.getModule = function(module) {
var identifier = module.identifier();
return this._modules[identifier];
};
Compilation.prototype.findModule = function(identifier) {
return this._modules[identifier];
};
Compilation.prototype.buildModule = function(module, optional, origin, dependencies, thisCallback) {
var _this = this;
_this.applyPlugins1("build-module", module);
if(module.building) return module.building.push(thisCallback);
var building = module.building = [thisCallback];
function callback(err) {
module.building = undefined;
building.forEach(function(cb) {
cb(err);
});
}
module.build(_this.options, this, _this.resolvers.normal, _this.inputFileSystem, function(err) {
module.errors.forEach(function(err) {
err.origin = origin;
err.dependencies = dependencies;
if(optional)
_this.warnings.push(err);
else
_this.errors.push(err);
}, this);
module.warnings.forEach(function(err) {
err.origin = origin;
err.dependencies = dependencies;
_this.warnings.push(err);
}, this);
module.dependencies.sort(Dependency.compare);
if(err) {
_this.applyPlugins2("failed-module", module, err);
return callback(err);
}
_this.applyPlugins1("succeed-module", module);
return callback();
});
};
Compilation.prototype.processModuleDependencies = function(module, callback) {
var dependencies = [];
function addDependency(dep) {
for(var i = 0; i < dependencies.length; i++) {
if(dep.isEqualResource(dependencies[i][0])) {
return dependencies[i].push(dep);
}
}
dependencies.push([dep]);
}
function addDependenciesBlock(block) {
if(block.dependencies) {
block.dependencies.forEach(addDependency);
}
if(block.blocks) {
block.blocks.forEach(addDependenciesBlock);
}
if(block.variables) {
block.variables.forEach(function(v) {
v.dependencies.forEach(addDependency);
});
}
}
addDependenciesBlock(module);
this.addModuleDependencies(module, dependencies, this.bail, null, true, callback);
};
Compilation.prototype.addModuleDependencies = function(module, dependencies, bail, cacheGroup, recursive, callback) {
var _this = this;
var start = _this.profile && +new Date();
var factories = [];
for(var i = 0; i < dependencies.length; i++) {
var factory = _this.dependencyFactories.get(dependencies[i][0].constructor);
if(!factory) {
return callback(new Error("No module factory available for dependency type: " + dependencies[i][0].constructor.name));
}
factories[i] = [factory, dependencies[i]];
}
async.forEach(factories, function iteratorFactory(item, callback) {
var dependencies = item[1];
var errorAndCallback = function errorAndCallback(err) {
err.origin = module;
_this.errors.push(err);
if(bail) {
callback(err);
} else {
callback();
}
};
var warningAndCallback = function warningAndCallback(err) {
err.origin = module;
_this.warnings.push(err);
callback();
};
var factory = item[0];
factory.create({
contextInfo: {
issuer: module.nameForCondition && module.nameForCondition()
},
context: module.context,
dependencies: dependencies
}, function factoryCallback(err, dependentModule) {
function isOptional() {
return dependencies.filter(function(d) {
return !d.optional;
}).length === 0;
}
function errorOrWarningAndCallback(err) {
if(isOptional()) {
return warningAndCallback(err);
} else {
return errorAndCallback(err);
}
}
if(err) {
return errorOrWarningAndCallback(new ModuleNotFoundError(module, err, dependencies));
}
if(!dependentModule) {
return process.nextTick(callback);
}
if(_this.profile) {
if(!dependentModule.profile) {
dependentModule.profile = {};
}
var afterFactory = +new Date();
dependentModule.profile.factory = afterFactory - start;
}
dependentModule.issuer = module;
var newModule = _this.addModule(dependentModule, cacheGroup);
if(!newModule) { // from cache
dependentModule = _this.getModule(dependentModule);
if(dependentModule.optional) {
dependentModule.optional = isOptional();
}
dependencies.forEach(function(dep) {
dep.module = dependentModule;
dependentModule.addReason(module, dep);
});
if(_this.profile) {
if(!module.profile) {
module.profile = {};
}
var time = +new Date() - start;
if(!module.profile.dependencies || time > module.profile.dependencies) {
module.profile.dependencies = time;
}
}
return process.nextTick(callback);
}
if(newModule instanceof Module) {
if(_this.profile) {
newModule.profile = dependentModule.profile;
}
newModule.optional = isOptional();
newModule.issuer = dependentModule.issuer;
dependentModule = newModule;
dependencies.forEach(function(dep) {
dep.module = dependentModule;
dependentModule.addReason(module, dep);
});
if(_this.profile) {
var afterBuilding = +new Date();
module.profile.building = afterBuilding - afterFactory;
}
if(recursive) {
return process.nextTick(_this.processModuleDependencies.bind(_this, dependentModule, callback));
} else {
return process.nextTick(callback);
}
}
dependentModule.optional = isOptional();
dependencies.forEach(function(dep) {
dep.module = dependentModule;
dependentModule.addReason(module, dep);
});
_this.buildModule(dependentModule, isOptional(), module, dependencies, function(err) {
if(err) {
return errorOrWarningAndCallback(err);
}
if(_this.profile) {
var afterBuilding = +new Date();
dependentModule.profile.building = afterBuilding - afterFactory;
}
if(recursive) {
_this.processModuleDependencies(dependentModule, callback);
} else {
return callback();
}
});
});
}, function finalCallbackAddModuleDependencies(err) {
// In V8, the Error objects keep a reference to the functions on the stack. These warnings &
// errors are created inside closures that keep a reference to the Compilation, so errors are
// leaking the Compilation object. Setting _this to null workarounds the following issue in V8.
// https://bugs.chromium.org/p/chromium/issues/detail?id=612191
_this = null;
if(err) {
return callback(err);
}
return process.nextTick(callback);
});
};
Compilation.prototype._addModuleChain = function process(context, dependency, onModule, callback) {
var start = this.profile && +new Date();
var errorAndCallback = this.bail ? function errorAndCallback(err) {
callback(err);
} : function errorAndCallback(err) {
err.dependencies = [dependency];
this.errors.push(err);
callback();
}.bind(this);
if(typeof dependency !== "object" || dependency === null || !dependency.constructor) {
throw new Error("Parameter 'dependency' must be a Dependency");
}
var moduleFactory = this.dependencyFactories.get(dependency.constructor);
if(!moduleFactory) {
throw new Error("No dependency factory available for this dependency type: " + dependency.constructor.name);
}
moduleFactory.create({
context: context,
dependencies: [dependency]
}, function(err, module) {
if(err) {
return errorAndCallback(new EntryModuleNotFoundError(err));
}
if(this.profile) {
if(!module.profile) {
module.profile = {};
}
var afterFactory = +new Date();
module.profile.factory = afterFactory - start;
}
var result = this.addModule(module);
if(!result) {
module = this.getModule(module);
onModule(module);
if(this.profile) {
var afterBuilding = +new Date();
module.profile.building = afterBuilding - afterFactory;
}
return callback(null, module);
}
if(result instanceof Module) {
if(this.profile) {
result.profile = module.profile;
}
module = result;
onModule(module);
moduleReady.call(this);
return;
}
onModule(module);
this.buildModule(module, false, null, null, function(err) {
if(err) {
return errorAndCallback(err);
}
if(this.profile) {
var afterBuilding = +new Date();
module.profile.building = afterBuilding - afterFactory;
}
moduleReady.call(this);
}.bind(this));
function moduleReady() {
this.processModuleDependencies(module, function(err) {
if(err) {
return callback(err);
}
return callback(null, module);
});
}
}.bind(this));
};
Compilation.prototype.addEntry = function process(context, entry, name, callback) {
var slot = {
name: name,
module: null
};
this.preparedChunks.push(slot);
this._addModuleChain(context, entry, function(module) {
entry.module = module;
this.entries.push(module);
module.issuer = null;
}.bind(this), function(err, module) {
if(err) {
return callback(err);
}
if(module) {
slot.module = module;
} else {
var idx = this.preparedChunks.indexOf(slot);
this.preparedChunks.splice(idx, 1);
}
return callback();
}.bind(this));
};
Compilation.prototype.prefetch = function process(context, dependency, callback) {
this._addModuleChain(context, dependency, function(module) {
module.prefetched = true;
module.issuer = null;
}, callback);
};
Compilation.prototype.rebuildModule = function(module, thisCallback) {
if(module.variables.length || module.blocks.length)
throw new Error("Cannot rebuild a complex module with variables or blocks");
if(module.rebuilding) {
return module.rebuilding.push(thisCallback);
}
var rebuilding = module.rebuilding = [thisCallback];
function callback(err) {
module.rebuilding = undefined;
rebuilding.forEach(function(cb) {
cb(err);
});
}
var deps = module.dependencies.slice();
this.buildModule(module, false, module, null, function(err) {
if(err) return callback(err);
this.processModuleDependencies(module, function(err) {
if(err) return callback(err);
deps.forEach(function(d) {
if(d.module && d.module.removeReason(module, d)) {
module.chunks.forEach(function(chunk) {
if(!d.module.hasReasonForChunk(chunk)) {
if(d.module.removeChunk(chunk)) {
this.removeChunkFromDependencies(d.module, chunk);
}
}
}, this);
}
}, this);
callback();
}.bind(this));
}.bind(this));
};
Compilation.prototype.finish = function finish() {
this.applyPlugins1("finish-modules", this.modules);
this.modules.forEach(function(m) {
this.reportDependencyWarnings(m, [m]);
}, this);
};
Compilation.prototype.unseal = function unseal() {
this.applyPlugins0("unseal");
this.chunks.length = 0;
this.namedChunks = {};
this.additionalChunkAssets.length = 0;
this.assets = {};
this.modules.forEach(function(module) {
module.unseal();
});
};
Compilation.prototype.seal = function seal(callback) {
var self = this;
self.applyPlugins0("seal");
self.nextFreeModuleIndex = 0;
self.nextFreeModuleIndex2 = 0;
self.preparedChunks.forEach(function(preparedChunk) {
var module = preparedChunk.module;
var chunk = self.addChunk(preparedChunk.name, module);
var entrypoint = self.entrypoints[chunk.name] = new Entrypoint(chunk.name);
entrypoint.unshiftChunk(chunk);
chunk.addModule(module);
module.addChunk(chunk);
chunk.entryModule = module;
self.assignIndex(module);
self.assignDepth(module);
self.processDependenciesBlockForChunk(module, chunk);
}, self);
self.sortModules(self.modules);
self.applyPlugins0("optimize");
while(self.applyPluginsBailResult1("optimize-modules-basic", self.modules) ||
self.applyPluginsBailResult1("optimize-modules", self.modules) ||
self.applyPluginsBailResult1("optimize-modules-advanced", self.modules)); // eslint-disable-line no-extra-semi
self.applyPlugins1("after-optimize-modules", self.modules);
while(self.applyPluginsBailResult1("optimize-chunks-basic", self.chunks) ||
self.applyPluginsBailResult1("optimize-chunks", self.chunks) ||
self.applyPluginsBailResult1("optimize-chunks-advanced", self.chunks)); // eslint-disable-line no-extra-semi
self.applyPlugins1("after-optimize-chunks", self.chunks);
self.applyPluginsAsyncSeries("optimize-tree", self.chunks, self.modules, function sealPart2(err) {
if(err) {
return callback(err);
}
self.applyPlugins2("after-optimize-tree", self.chunks, self.modules);
var shouldRecord = self.applyPluginsBailResult("should-record") !== false;
self.sortItemsBeforeIds();
self.applyPlugins2("revive-modules", self.modules, self.records);
self.applyPlugins1("optimize-module-order", self.modules);
self.applyPlugins1("advanced-optimize-module-order", self.modules);
self.applyPlugins1("before-module-ids", self.modules);
self.applyPlugins1("module-ids", self.modules);
self.applyModuleIds();
self.applyPlugins1("optimize-module-ids", self.modules);
self.applyPlugins1("after-optimize-module-ids", self.modules);
self.sortItemsWithModuleIds();
self.applyPlugins2("revive-chunks", self.chunks, self.records);
self.applyPlugins1("optimize-chunk-order", self.chunks);
self.applyPlugins1("before-chunk-ids", self.chunks);
self.applyChunkIds();
self.applyPlugins1("optimize-chunk-ids", self.chunks);
self.applyPlugins1("after-optimize-chunk-ids", self.chunks);
self.sortItemsWithChunkIds();
if(shouldRecord)
self.applyPlugins2("record-modules", self.modules, self.records);
if(shouldRecord)
self.applyPlugins2("record-chunks", self.chunks, self.records);
self.applyPlugins0("before-hash");
self.createHash();
self.applyPlugins0("after-hash");
if(shouldRecord)
self.applyPlugins1("record-hash", self.records);
self.applyPlugins0("before-module-assets");
self.createModuleAssets();
if(self.applyPluginsBailResult("should-generate-chunk-assets") !== false) {
self.applyPlugins0("before-chunk-assets");
self.createChunkAssets();
}
self.applyPlugins1("additional-chunk-assets", self.chunks);
self.summarizeDependencies();
if(shouldRecord)
self.applyPlugins2("record", self, self.records);
self.applyPluginsAsync("additional-assets", function(err) {
if(err) {
return callback(err);
}
self.applyPluginsAsync("optimize-chunk-assets", self.chunks, function(err) {
if(err) {
return callback(err);
}
self.applyPlugins1("after-optimize-chunk-assets", self.chunks);
self.applyPluginsAsync("optimize-assets", self.assets, function(err) {
if(err) {
return callback(err);
}
self.applyPlugins1("after-optimize-assets", self.assets);
if(self.applyPluginsBailResult("need-additional-seal")) {
self.unseal();
return self.seal(callback);
}
return self.applyPluginsAsync("after-seal", callback);
});
});
});
});
};
Compilation.prototype.sortModules = function sortModules(modules) {
modules.sort(function(a, b) {
if(a.index < b.index) return -1;
if(a.index > b.index) return 1;
return 0;
});
};
Compilation.prototype.reportDependencyWarnings = function reportDependencyWarnings(module, blocks) {
var _this = this;
blocks.forEach(function(block) {
block.dependencies.forEach(function(d) {
var warnings = d.getWarnings();
if(warnings) {
warnings.forEach(function(w) {
var warning = new ModuleDependencyWarning(module, w, d.loc);
_this.warnings.push(warning);
});
}
});
_this.reportDependencyWarnings(module, block.blocks);
});
};
Compilation.prototype.addChunk = function addChunk(name, module, loc) {
var chunk;
if(name) {
if(Object.prototype.hasOwnProperty.call(this.namedChunks, name)) {
chunk = this.namedChunks[name];
if(module) {
chunk.addOrigin(module, loc);
}
return chunk;
}
}
chunk = new Chunk(name, module, loc);
this.chunks.push(chunk);
if(name) {
this.namedChunks[name] = chunk;
}
return chunk;
};
Compilation.prototype.assignIndex = function assignIndex(module) {
var _this = this;
function assignIndexToModule(module) {
// enter module
if(typeof module.index !== "number") {
module.index = _this.nextFreeModuleIndex++;
queue.push(function() {
// leave module
module.index2 = _this.nextFreeModuleIndex2++;
});
// enter it as block
assignIndexToDependencyBlock(module);
}
}
function assignIndexToDependency(dependency) {
if(dependency.module) {
queue.push(function() {
assignIndexToModule(dependency.module);
});
}
}
function assignIndexToDependencyBlock(block) {
var allDependencies = [];
function iteratorDependency(d) {
allDependencies.push(d);
}
function iteratorBlock(b) {
queue.push(function() {
assignIndexToDependencyBlock(b);
});
}
if(block.variables) {
block.variables.forEach(function(v) {
v.dependencies.forEach(iteratorDependency);
});
}
if(block.dependencies) {
block.dependencies.forEach(iteratorDependency);
}
if(block.blocks) {
block.blocks.slice().reverse().forEach(iteratorBlock, this);
}
allDependencies.reverse();
allDependencies.forEach(function(d) {
queue.push(function() {
assignIndexToDependency(d);
});
});
}
var queue = [function() {
assignIndexToModule(module);
}];
while(queue.length) {
queue.pop()();
}
};
Compilation.prototype.assignDepth = function assignDepth(module) {
function assignDepthToModule(module, depth) {
// enter module
if(typeof module.depth === "number" && module.depth <= depth) return;
module.depth = depth;
// enter it as block
assignDepthToDependencyBlock(module, depth + 1);
}
function assignDepthToDependency(dependency, depth) {
if(dependency.module) {
queue.push(function() {
assignDepthToModule(dependency.module, depth);
});
}
}
function assignDepthToDependencyBlock(block, depth) {
function iteratorDependency(d) {
assignDepthToDependency(d, depth);
}
function iteratorBlock(b) {
assignDepthToDependencyBlock(b, depth);
}
if(block.variables) {
block.variables.forEach(function(v) {
v.dependencies.forEach(iteratorDependency);
});
}
if(block.dependencies) {
block.dependencies.forEach(iteratorDependency);
}
if(block.blocks) {
block.blocks.forEach(iteratorBlock, this);
}
}
var queue = [function() {
assignDepthToModule(module, 0);
}];
while(queue.length) {
queue.pop()();
}
};
Compilation.prototype.processDependenciesBlockForChunk = function processDependenciesBlockForChunk(block, chunk) {
var queue = [
[block, chunk]
];
while(queue.length) {
var queueItem = queue.pop();
block = queueItem[0];
chunk = queueItem[1];
if(block.variables) {
block.variables.forEach(function(v) {
v.dependencies.forEach(iteratorDependency, this);
}, this);
}
if(block.dependencies) {
block.dependencies.forEach(iteratorDependency, this);
}
if(block.blocks) {
block.blocks.forEach(iteratorBlock, this);
}
}
function iteratorBlock(b) {
var c;
if(!b.chunks) {
c = this.addChunk(b.chunkName, b.module, b.loc);
b.chunks = [c];
c.addBlock(b);
} else {
c = b.chunks[0];
}
chunk.addChunk(c);
c.addParent(chunk);
queue.push([b, c]);
}
function iteratorDependency(d) {
if(!d.module) {
return;
}
if(d.weak) {
return;
}
if(chunk.addModule(d.module)) {
d.module.addChunk(chunk);
queue.push([d.module, chunk]);
}
}
};
Compilation.prototype.removeChunkFromDependencies = function removeChunkFromDependencies(block, chunk) {
block.blocks.forEach(function(b) {
b.chunks.forEach(function(c) {
chunk.removeChunk(c);
c.removeParent(chunk);
this.removeChunkFromDependencies(b, c);
}, this);
}, this);
function iteratorDependency(d) {
if(!d.module) {
return;
}
if(!d.module.hasReasonForChunk(chunk)) {
if(d.module.removeChunk(chunk)) {
this.removeChunkFromDependencies(d.module, chunk);
}
}
}
block.dependencies.forEach(iteratorDependency, this);
block.variables.forEach(function(v) {
v.dependencies.forEach(iteratorDependency, this);
}, this);
};
Compilation.prototype.applyModuleIds = function applyModuleIds() {
var unusedIds = [];
var nextFreeModuleId = 0;
var usedIds = [];
var usedIdMap = {};
if(this.usedModuleIds) {
Object.keys(this.usedModuleIds).forEach(function(key) {
var id = this.usedModuleIds[key];
if(typeof usedIdMap[id] === "undefined") {
usedIds.push(id);
usedIdMap[id] = id;
}
}, this);
}
this.modules.forEach(function(module) {
if(module.id !== null && typeof usedIdMap[module.id] === "undefined") {
usedIds.push(module.id);
usedIdMap[module.id] = module.id;
}
});
if(usedIds.length > 0) {
var usedNumberIds = usedIds.filter(function(id) {
return typeof id === "number";
});
nextFreeModuleId = usedNumberIds.reduce(function(a, b) {
return Math.max(a, b);
}, -1) + 1;
for(var i = 0; i < nextFreeModuleId; i++) {
if(usedIdMap[i] !== i)
unusedIds.push(i);
}
unusedIds.reverse();
}
this.modules.forEach(function(module) {
if(module.id === null) {
if(unusedIds.length > 0)
module.id = unusedIds.pop();
else
module.id = nextFreeModuleId++;
}
}, this);
};
Compilation.prototype.applyChunkIds = function applyChunkIds() {
var unusedIds = [];
var nextFreeChunkId = 0;
if(this.usedChunkIds) {
var usedIds = Object.keys(this.usedChunkIds).map(function(key) {
return this.usedChunkIds[key];
}, this).sort();
var usedNumberIds = usedIds.filter(function(id) {
return typeof id === "number";
});
nextFreeChunkId = usedNumberIds.reduce(function(a, b) {
return Math.max(a, b);
}, -1) + 1;
for(var i = 0; i < nextFreeChunkId; i++) {
if(this.usedChunkIds[i] !== i)
unusedIds.push(i);
}
unusedIds.reverse();
}
this.chunks.forEach(function(chunk) {
if(chunk.id === null) {
if(unusedIds.length > 0)
chunk.id = unusedIds.pop();
else
chunk.id = nextFreeChunkId++;
}
if(!chunk.ids) {
chunk.ids = [chunk.id];
}
}, this);
};
function byId(a, b) {
if(a.id < b.id) return -1;
if(a.id > b.id) return 1;
return 0;
}
Compilation.prototype.sortItemsBeforeIds = function sortItemsBeforeIds() {
};
Compilation.prototype.sortItemsWithModuleIds = function sortItemsWithModuleIds() {
this.modules.sort(byId);
this.modules.forEach(function(module) {
module.sortItems();
});
this.chunks.forEach(function(chunk) {
chunk.sortItems();
});
};
Compilation.prototype.sortItemsWithChunkIds = function sortItemsWithChunkIds() {
this.chunks.sort(byId);
this.modules.forEach(function(module) {
module.sortItems();
});
this.chunks.forEach(function(chunk) {
chunk.sortItems();
});
};
Compilation.prototype.summarizeDependencies = function summarizeDependencies() {
function filterDups(array) {
var newArray = [];
for(var i = 0; i < array.length; i++) {
if(i === 0 || array[i - 1] !== array[i])
newArray.push(array[i]);
}
return newArray;
}
this.fileDependencies = (this.compilationDependencies || []).slice();
this.contextDependencies = [];
this.missingDependencies = [];
this.children.forEach(function(child) {
this.fileDependencies = this.fileDependencies.concat(child.fileDependencies);
this.contextDependencies = this.contextDependencies.concat(child.contextDependencies);
this.missingDependencies = this.missingDependencies.concat(child.missingDependencies);
}.bind(this));
this.modules.forEach(function(module) {
if(module.fileDependencies) {
module.fileDependencies.forEach(function(item) {
this.fileDependencies.push(item);
}, this);
}
if(module.contextDependencies) {
module.contextDependencies.forEach(function(item) {
this.contextDependencies.push(item);
}, this);
}
}, this);
this.errors.forEach(function(error) {
if(Array.isArray(error.missing)) {
error.missing.forEach(function(item) {
this.missingDependencies.push(item);
}, this);
}
}, this);
this.fileDependencies.sort();
this.fileDependencies = filterDups(this.fileDependencies);
this.contextDependencies.sort();
this.contextDependencies = filterDups(this.contextDependencies);
this.missingDependencies.sort();
this.missingDependencies = filterDups(this.missingDependencies);
};
Compilation.prototype.createHash = function createHash() {
var outputOptions = this.outputOptions;
var hashFunction = outputOptions.hashFunction;
var hashDigest = outputOptions.hashDigest;
var hashDigestLength = outputOptions.hashDigestLength;
var hash = require("crypto").createHash(hashFunction);
if(outputOptions.hashSalt)
hash.update(outputOptions.hashSalt);
this.mainTemplate.updateHash(hash);
this.chunkTemplate.updateHash(hash);
this.moduleTemplate.updateHash(hash);
var i, chunk;
var chunks = this.chunks.slice();
chunks.sort(function(a, b) {
var aEntry = a.hasRuntime();
var bEntry = b.hasRuntime();
if(aEntry && !bEntry) return 1;
if(!aEntry && bEntry) return -1;
return 0;
});
for(i = 0; i < chunks.length; i++) {
chunk = chunks[i];
var chunkHash = require("crypto").createHash(hashFunction);
if(outputOptions.hashSalt)
hash.update(outputOptions.hashSalt);
chunk.updateHash(chunkHash);
if(chunk.hasRuntime()) {
this.mainTemplate.updateHashForChunk(chunkHash, chunk);
} else {
this.chunkTemplate.updateHashForChunk(chunkHash);
}
this.applyPlugins2("chunk-hash", chunk, chunkHash);
chunk.hash = chunkHash.digest(hashDigest);
hash.update(chunk.hash);
chunk.renderedHash = chunk.hash.substr(0, hashDigestLength);
}
this.fullHash = hash.digest(hashDigest);
this.hash = this.fullHash.substr(0, hashDigestLength);
};
Compilation.prototype.modifyHash = function modifyHash(update) {
var outputOptions = this.outputOptions;
var hashFunction = outputOptions.hashFunction;
var hashDigest = outputOptions.hashDigest;
var hashDigestLength = outputOptions.hashDigestLength;
var hash = require("crypto").createHash(hashFunction);
hash.update(this.fullHash);
hash.update(update);
this.fullHash = hash.digest(hashDigest);
this.hash = this.fullHash.substr(0, hashDigestLength);
};
Compilation.prototype.createModuleAssets = function createModuleAssets() {
var cacheAssetsAndApplyPlugins = function cacheAssetsAndApplyPlugins(name) {
var file = this.getPath(name);
this.assets[file] = module.assets[name];
this.applyPlugins2("module-asset", module, file);
}
for(var i = 0; i < this.modules.length; i++) {
var module = this.modules[i];
if(module.assets) {
Object.keys(module.assets).forEach(cacheAssetsAndApplyPlugins, this);
}
}
};
Compilation.prototype.createChunkAssets = function createChunkAssets() {
var outputOptions = this.outputOptions;
var filename = outputOptions.filename;
var chunkFilename = outputOptions.chunkFilename;
for(var i = 0; i < this.chunks.length; i++) {
var chunk = this.chunks[i];
chunk.files = [];
var chunkHash = chunk.hash;
var source;
var file;
var filenameTemplate = chunk.filenameTemplate ? chunk.filenameTemplate :
chunk.isInitial() ? filename :
chunkFilename;
try {
var useChunkHash = !chunk.hasRuntime() || (this.mainTemplate.useChunkHash && this.mainTemplate.useChunkHash(chunk));
var usedHash = useChunkHash ? chunkHash : this.fullHash;
if(this.cache && this.cache["c" + chunk.id] && this.cache["c" + chunk.id].hash === usedHash) {
source = this.cache["c" + chunk.id].source;
} else {
if(chunk.hasRuntime()) {
source = this.mainTemplate.render(this.hash, chunk, this.moduleTemplate, this.dependencyTemplates);
} else {
source = this.chunkTemplate.render(chunk, this.moduleTemplate, this.dependencyTemplates);
}
if(this.cache) {
this.cache["c" + chunk.id] = {
hash: usedHash,
source: source = (source instanceof CachedSource ? source : new CachedSource(source))
};
}
}
file = this.getPath(filenameTemplate, {
noChunkHash: !useChunkHash,
chunk: chunk
});
if(this.assets[file])
throw new Error("Conflict: Multiple assets emit to the same filename '" + file + "'");
this.assets[file] = source;
chunk.files.push(file);
this.applyPlugins2("chunk-asset", chunk, file);
} catch(err) {
this.errors.push(new ChunkRenderError(chunk, file || filenameTemplate, err));
}
}
};
Compilation.prototype.getPath = function(filename, data) {
data = data || {};
data.hash = data.hash || this.hash;
return this.mainTemplate.applyPluginsWaterfall("asset-path", filename, data);
};
Compilation.prototype.getStats = function() {
return new Stats(this);
};
Compilation.prototype.createChildCompiler = function(name, outputOptions) {
return this.compiler.createChildCompiler(this, name, outputOptions);
};
Compilation.prototype.checkConstraints = function() {
var usedIds = {};
this.modules.forEach(function(module) {
if(usedIds[module.id])
throw new Error("checkConstraints: duplicate module id " + module.id);
});
this.chunks.forEach(function(chunk, idx) {
if(this.chunks.indexOf(chunk) !== idx)
throw new Error("checkConstraints: duplicate chunk in compilation " + chunk.debugId);
chunk.checkConstraints();
}.bind(this));
};