106 lines
2.4 KiB
JavaScript
106 lines
2.4 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const Source = require("./Source");
|
|
|
|
/** @typedef {import("./Source").HashLike} HashLike */
|
|
/** @typedef {import("./Source").MapOptions} MapOptions */
|
|
/** @typedef {import("./Source").RawSourceMap} RawSourceMap */
|
|
/** @typedef {import("./Source").SourceAndMap} SourceAndMap */
|
|
/** @typedef {import("./Source").SourceValue} SourceValue */
|
|
|
|
/**
|
|
* @typedef {object} SourceLike
|
|
* @property {() => SourceValue} source
|
|
* @property {(() => Buffer)=} buffer
|
|
* @property {(() => number)=} size
|
|
* @property {((options?: MapOptions) => RawSourceMap | null)=} map
|
|
* @property {((options?: MapOptions) => SourceAndMap)=} sourceAndMap
|
|
* @property {((hash: HashLike) => void)=} updateHash
|
|
*/
|
|
|
|
class CompatSource extends Source {
|
|
/**
|
|
* @param {SourceLike} sourceLike source like
|
|
* @returns {Source} source
|
|
*/
|
|
static from(sourceLike) {
|
|
return sourceLike instanceof Source
|
|
? sourceLike
|
|
: new CompatSource(sourceLike);
|
|
}
|
|
|
|
/**
|
|
* @param {SourceLike} sourceLike source like
|
|
*/
|
|
constructor(sourceLike) {
|
|
super();
|
|
this._sourceLike = sourceLike;
|
|
}
|
|
|
|
/**
|
|
* @returns {SourceValue} source
|
|
*/
|
|
source() {
|
|
return this._sourceLike.source();
|
|
}
|
|
|
|
buffer() {
|
|
if (typeof this._sourceLike.buffer === "function") {
|
|
return this._sourceLike.buffer();
|
|
}
|
|
return super.buffer();
|
|
}
|
|
|
|
size() {
|
|
if (typeof this._sourceLike.size === "function") {
|
|
return this._sourceLike.size();
|
|
}
|
|
return super.size();
|
|
}
|
|
|
|
/**
|
|
* @param {MapOptions=} options map options
|
|
* @returns {RawSourceMap | null} map
|
|
*/
|
|
map(options) {
|
|
if (typeof this._sourceLike.map === "function") {
|
|
return this._sourceLike.map(options);
|
|
}
|
|
return super.map(options);
|
|
}
|
|
|
|
/**
|
|
* @param {MapOptions=} options map options
|
|
* @returns {SourceAndMap} source and map
|
|
*/
|
|
sourceAndMap(options) {
|
|
if (typeof this._sourceLike.sourceAndMap === "function") {
|
|
return this._sourceLike.sourceAndMap(options);
|
|
}
|
|
return super.sourceAndMap(options);
|
|
}
|
|
|
|
/**
|
|
* @param {HashLike} hash hash
|
|
* @returns {void}
|
|
*/
|
|
updateHash(hash) {
|
|
if (typeof this._sourceLike.updateHash === "function") {
|
|
return this._sourceLike.updateHash(hash);
|
|
}
|
|
if (typeof this._sourceLike.map === "function") {
|
|
throw new Error(
|
|
"A Source-like object with a 'map' method must also provide an 'updateHash' method"
|
|
);
|
|
}
|
|
hash.update(this.buffer());
|
|
}
|
|
}
|
|
|
|
module.exports = CompatSource;
|