73 lines
2.1 KiB
JavaScript
73 lines
2.1 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const { RawSource, ReplaceSource } = require("webpack-sources");
|
||
|
|
|
||
|
|
/** @typedef {import("./Dependency")} Dependency */
|
||
|
|
/** @typedef {import("./Dependency").DependencyTemplate} DependencyTemplate */
|
||
|
|
/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
|
||
|
|
/** @typedef {import("./util/createHash").Hash} Hash */
|
||
|
|
/** @typedef {(d: Dependency) => boolean} DependencyFilterFunction */
|
||
|
|
/** @typedef {Map<Function, DependencyTemplate>} DependencyTemplates */
|
||
|
|
|
||
|
|
class DependenciesBlockVariable {
|
||
|
|
/**
|
||
|
|
* Creates an instance of DependenciesBlockVariable.
|
||
|
|
* @param {string} name name of DependenciesBlockVariable
|
||
|
|
* @param {string} expression expression string
|
||
|
|
* @param {Dependency[]=} dependencies dependencies tied to this varaiable
|
||
|
|
*/
|
||
|
|
constructor(name, expression, dependencies) {
|
||
|
|
this.name = name;
|
||
|
|
this.expression = expression;
|
||
|
|
this.dependencies = dependencies || [];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {Hash} hash hash for instance to update
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
updateHash(hash) {
|
||
|
|
hash.update(this.name);
|
||
|
|
hash.update(this.expression);
|
||
|
|
for (const d of this.dependencies) {
|
||
|
|
d.updateHash(hash);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {DependencyTemplates} dependencyTemplates Dependency constructors and templates Map.
|
||
|
|
* @param {RuntimeTemplate} runtimeTemplate runtimeTemplate to generate expression souce
|
||
|
|
* @returns {ReplaceSource} returns constructed source for expression via templates
|
||
|
|
*/
|
||
|
|
expressionSource(dependencyTemplates, runtimeTemplate) {
|
||
|
|
const source = new ReplaceSource(new RawSource(this.expression));
|
||
|
|
for (const dep of this.dependencies) {
|
||
|
|
const template = dependencyTemplates.get(dep.constructor);
|
||
|
|
if (!template) {
|
||
|
|
throw new Error(`No template for dependency: ${dep.constructor.name}`);
|
||
|
|
}
|
||
|
|
template.apply(dep, source, runtimeTemplate, dependencyTemplates);
|
||
|
|
}
|
||
|
|
return source;
|
||
|
|
}
|
||
|
|
|
||
|
|
disconnect() {
|
||
|
|
for (const d of this.dependencies) {
|
||
|
|
d.disconnect();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
hasDependencies(filter) {
|
||
|
|
if (filter) {
|
||
|
|
return this.dependencies.some(filter);
|
||
|
|
}
|
||
|
|
return this.dependencies.length > 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = DependenciesBlockVariable;
|