vue hello world项目
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Ivan Kopeykin @vankop
*/
"use strict";
const makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");
/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
/** @typedef {import("../DependencyTemplate").CssDependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
class CssLocalIdentifierDependency extends NullDependency {
/**
* @param {string} name name
* @param {[number, number]} range range
* @param {string=} prefix prefix
*/
constructor(name, range, prefix = "") {
super();
this.name = name;
this.range = range;
this.prefix = prefix;
}
get type() {
return "css local identifier";
}
/**
* Returns the exported names
* @param {ModuleGraph} moduleGraph module graph
* @returns {ExportsSpec | undefined} export names
*/
getExports(moduleGraph) {
const name = this.name;
return {
exports: [
{
name,
canMangle: true
}
],
dependencies: undefined
};
}
serialize(context) {
const { write } = context;
write(this.name);
write(this.range);
write(this.prefix);
super.serialize(context);
}
deserialize(context) {
const { read } = context;
this.name = read();
this.range = read();
this.prefix = read();
super.deserialize(context);
}
}
const escapeCssIdentifier = (str, omitUnderscore) => {
const escaped = `${str}`.replace(
// cspell:word uffff
/[^a-zA-Z0-9_\u0081-\uffff-]/g,
s => `\\${s}`
);
return !omitUnderscore && /^(?!--)[0-9-]/.test(escaped)
? `_${escaped}`
: escaped;
};
CssLocalIdentifierDependency.Template = class CssLocalIdentifierDependencyTemplate extends (
NullDependency.Template
) {
/**
* @param {Dependency} dependency the dependency for which the template should be applied
* @param {ReplaceSource} source the current replace source which can be modified
* @param {DependencyTemplateContext} templateContext the context object
* @returns {void}
*/
apply(
dependency,
source,
{ module, moduleGraph, chunkGraph, runtime, runtimeTemplate, cssExports }
) {
const dep = /** @type {CssLocalIdentifierDependency} */ (dependency);
const used = moduleGraph
.getExportInfo(module, dep.name)
.getUsedName(dep.name, runtime);
const moduleId = chunkGraph.getModuleId(module);
const identifier =
dep.prefix +
(runtimeTemplate.outputOptions.uniqueName
? runtimeTemplate.outputOptions.uniqueName + "-"
: "") +
(used ? moduleId + "-" + used : "-");
source.replace(
dep.range[0],
dep.range[1] - 1,
escapeCssIdentifier(identifier, dep.prefix)
);
if (used) cssExports.set(used, identifier);
}
};
makeSerializable(
CssLocalIdentifierDependency,
"webpack/lib/dependencies/CssLocalIdentifierDependency"
);
module.exports = CssLocalIdentifierDependency;