86 lines
2.4 KiB
JavaScript
86 lines
2.4 KiB
JavaScript
|
"use strict";
|
||
|
|
||
|
/** @typedef {import("./index.js").MinimizedResult} MinimizedResult */
|
||
|
|
||
|
/** @typedef {import("source-map").RawSourceMap} RawSourceMap */
|
||
|
|
||
|
/** @typedef {import("./index.js").InternalResult} InternalResult */
|
||
|
|
||
|
/**
|
||
|
* @template T
|
||
|
* @param {import("./index.js").InternalOptions<T>} options
|
||
|
* @returns {Promise<InternalResult>}
|
||
|
*/
|
||
|
const minify = async options => {
|
||
|
const minifyFns = Array.isArray(options.minimizer.implementation) ? options.minimizer.implementation : [options.minimizer.implementation];
|
||
|
/** @type {InternalResult} */
|
||
|
|
||
|
const result = {
|
||
|
outputs: [],
|
||
|
warnings: [],
|
||
|
errors: []
|
||
|
};
|
||
|
let needSourceMap = false;
|
||
|
|
||
|
for (let i = 0; i <= minifyFns.length - 1; i++) {
|
||
|
const minifyFn = minifyFns[i];
|
||
|
const minifyOptions = Array.isArray(options.minimizer.options) ? options.minimizer.options[i] : options.minimizer.options;
|
||
|
const prevResult = result.outputs.length > 0 ? result.outputs[result.outputs.length - 1] : {
|
||
|
code: options.input,
|
||
|
map: options.inputSourceMap
|
||
|
};
|
||
|
const {
|
||
|
code,
|
||
|
map
|
||
|
} = prevResult; // eslint-disable-next-line no-await-in-loop
|
||
|
|
||
|
const minifyResult = await minifyFn({
|
||
|
[options.name]: code
|
||
|
}, map, minifyOptions);
|
||
|
|
||
|
if (typeof minifyResult.code !== "string") {
|
||
|
throw new Error("minimizer function doesn't return the 'code' property or result is not a string value");
|
||
|
}
|
||
|
|
||
|
if (minifyResult.map) {
|
||
|
needSourceMap = true;
|
||
|
}
|
||
|
|
||
|
if (minifyResult.errors) {
|
||
|
result.errors = result.errors.concat(minifyResult.errors);
|
||
|
}
|
||
|
|
||
|
if (minifyResult.warnings) {
|
||
|
result.warnings = result.warnings.concat(minifyResult.warnings);
|
||
|
}
|
||
|
|
||
|
result.outputs.push({
|
||
|
code: minifyResult.code,
|
||
|
map: minifyResult.map
|
||
|
});
|
||
|
}
|
||
|
|
||
|
if (!needSourceMap) {
|
||
|
result.outputs = [result.outputs[result.outputs.length - 1]];
|
||
|
}
|
||
|
|
||
|
return result;
|
||
|
};
|
||
|
/**
|
||
|
* @param {string} options
|
||
|
* @returns {Promise<InternalResult>}
|
||
|
*/
|
||
|
|
||
|
|
||
|
async function transform(options) {
|
||
|
// 'use strict' => this === undefined (Clean Scope)
|
||
|
// Safer for possible security issues, albeit not critical at all here
|
||
|
// eslint-disable-next-line no-new-func, no-param-reassign
|
||
|
const evaluatedOptions = new Function("exports", "require", "module", "__filename", "__dirname", `'use strict'\nreturn ${options}`)(exports, require, module, __filename, __dirname);
|
||
|
return minify(evaluatedOptions);
|
||
|
}
|
||
|
|
||
|
module.exports = {
|
||
|
minify,
|
||
|
transform
|
||
|
};
|