You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
291 lines
8.0 KiB
291 lines
8.0 KiB
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
/** @typedef {import("./Module")} Module */
|
|
/** @typedef {import("./Chunk")} Chunk */
|
|
/** @typedef {import("./ModuleTemplate")} ModuleTemplate */
|
|
/** @typedef {import("webpack-sources").ConcatSource} ConcatSource */
|
|
|
|
const { ConcatSource } = require("webpack-sources");
|
|
const HotUpdateChunk = require("./HotUpdateChunk");
|
|
|
|
const START_LOWERCASE_ALPHABET_CODE = "a".charCodeAt(0);
|
|
const START_UPPERCASE_ALPHABET_CODE = "A".charCodeAt(0);
|
|
const DELTA_A_TO_Z = "z".charCodeAt(0) - START_LOWERCASE_ALPHABET_CODE + 1;
|
|
const FUNCTION_CONTENT_REGEX = /^function\s?\(\)\s?\{\r?\n?|\r?\n?\}$/g;
|
|
const INDENT_MULTILINE_REGEX = /^\t/gm;
|
|
const LINE_SEPARATOR_REGEX = /\r?\n/g;
|
|
const IDENTIFIER_NAME_REPLACE_REGEX = /^([^a-zA-Z$_])/;
|
|
const IDENTIFIER_ALPHA_NUMERIC_NAME_REPLACE_REGEX = /[^a-zA-Z0-9$]+/g;
|
|
const COMMENT_END_REGEX = /\*\//g;
|
|
const PATH_NAME_NORMALIZE_REPLACE_REGEX = /[^a-zA-Z0-9_!§$()=\-^°]+/g;
|
|
const MATCH_PADDED_HYPHENS_REPLACE_REGEX = /^-|-$/g;
|
|
|
|
/** @typedef {import("webpack-sources").Source} Source */
|
|
|
|
/**
|
|
* @typedef {Object} HasId
|
|
* @property {number | string} id
|
|
*/
|
|
|
|
/**
|
|
* @typedef {function(Module, number): boolean} ModuleFilterPredicate
|
|
*/
|
|
|
|
/**
|
|
* @param {HasId} a first id object to be sorted
|
|
* @param {HasId} b second id object to be sorted against
|
|
* @returns {-1|0|1} the sort value
|
|
*/
|
|
const stringifyIdSortPredicate = (a, b) => {
|
|
const aId = a.id + "";
|
|
const bId = b.id + "";
|
|
if (aId < bId) return -1;
|
|
if (aId > bId) return 1;
|
|
return 0;
|
|
};
|
|
|
|
class Template {
|
|
/**
|
|
*
|
|
* @param {Function} fn a runtime function (.runtime.js) "template"
|
|
* @returns {string} the updated and normalized function string
|
|
*/
|
|
static getFunctionContent(fn) {
|
|
return fn
|
|
.toString()
|
|
.replace(FUNCTION_CONTENT_REGEX, "")
|
|
.replace(INDENT_MULTILINE_REGEX, "")
|
|
.replace(LINE_SEPARATOR_REGEX, "\n");
|
|
}
|
|
|
|
/**
|
|
* @param {string} str the string converted to identifier
|
|
* @returns {string} created identifier
|
|
*/
|
|
static toIdentifier(str) {
|
|
if (typeof str !== "string") return "";
|
|
return str
|
|
.replace(IDENTIFIER_NAME_REPLACE_REGEX, "_$1")
|
|
.replace(IDENTIFIER_ALPHA_NUMERIC_NAME_REPLACE_REGEX, "_");
|
|
}
|
|
/**
|
|
*
|
|
* @param {string} str string to be converted to commented in bundle code
|
|
* @returns {string} returns a commented version of string
|
|
*/
|
|
static toComment(str) {
|
|
if (!str) return "";
|
|
return `/*! ${str.replace(COMMENT_END_REGEX, "* /")} */`;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string} str string to be converted to "normal comment"
|
|
* @returns {string} returns a commented version of string
|
|
*/
|
|
static toNormalComment(str) {
|
|
if (!str) return "";
|
|
return `/* ${str.replace(COMMENT_END_REGEX, "* /")} */`;
|
|
}
|
|
|
|
/**
|
|
* @param {string} str string path to be normalized
|
|
* @returns {string} normalized bundle-safe path
|
|
*/
|
|
static toPath(str) {
|
|
if (typeof str !== "string") return "";
|
|
return str
|
|
.replace(PATH_NAME_NORMALIZE_REPLACE_REGEX, "-")
|
|
.replace(MATCH_PADDED_HYPHENS_REPLACE_REGEX, "");
|
|
}
|
|
|
|
// map number to a single character a-z, A-Z or <_ + number> if number is too big
|
|
/**
|
|
*
|
|
* @param {number} n number to convert to ident
|
|
* @returns {string} returns single character ident
|
|
*/
|
|
static numberToIdentifer(n) {
|
|
// lower case
|
|
if (n < DELTA_A_TO_Z) {
|
|
return String.fromCharCode(START_LOWERCASE_ALPHABET_CODE + n);
|
|
}
|
|
|
|
// upper case
|
|
if (n < DELTA_A_TO_Z * 2) {
|
|
return String.fromCharCode(
|
|
START_UPPERCASE_ALPHABET_CODE + n - DELTA_A_TO_Z
|
|
);
|
|
}
|
|
|
|
// use multiple letters
|
|
return (
|
|
Template.numberToIdentifer(n % (2 * DELTA_A_TO_Z)) +
|
|
Template.numberToIdentifer(Math.floor(n / (2 * DELTA_A_TO_Z)))
|
|
);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string | string[]} s string to convert to identity
|
|
* @returns {string} converted identity
|
|
*/
|
|
static indent(s) {
|
|
if (Array.isArray(s)) {
|
|
return s.map(Template.indent).join("\n");
|
|
} else {
|
|
const str = s.trimRight();
|
|
if (!str) return "";
|
|
const ind = str[0] === "\n" ? "" : "\t";
|
|
return ind + str.replace(/\n([^\n])/g, "\n\t$1");
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string|string[]} s string to create prefix for
|
|
* @param {string} prefix prefix to compose
|
|
* @returns {string} returns new prefix string
|
|
*/
|
|
static prefix(s, prefix) {
|
|
const str = Template.asString(s).trim();
|
|
if (!str) return "";
|
|
const ind = str[0] === "\n" ? "" : prefix;
|
|
return ind + str.replace(/\n([^\n])/g, "\n" + prefix + "$1");
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string|string[]} str string or string collection
|
|
* @returns {string} returns a single string from array
|
|
*/
|
|
static asString(str) {
|
|
if (Array.isArray(str)) {
|
|
return str.join("\n");
|
|
}
|
|
return str;
|
|
}
|
|
|
|
/**
|
|
* @typedef {Object} WithId
|
|
* @property {string|number} id
|
|
*/
|
|
|
|
/**
|
|
* @param {WithId[]} modules a collection of modules to get array bounds for
|
|
* @returns {[number, number] | false} returns the upper and lower array bounds
|
|
* or false if not every module has a number based id
|
|
*/
|
|
static getModulesArrayBounds(modules) {
|
|
let maxId = -Infinity;
|
|
let minId = Infinity;
|
|
for (const module of modules) {
|
|
if (typeof module.id !== "number") return false;
|
|
if (maxId < module.id) maxId = /** @type {number} */ (module.id);
|
|
if (minId > module.id) minId = /** @type {number} */ (module.id);
|
|
}
|
|
if (minId < 16 + ("" + minId).length) {
|
|
// add minId x ',' instead of 'Array(minId).concat(…)'
|
|
minId = 0;
|
|
}
|
|
const objectOverhead = modules
|
|
.map(module => (module.id + "").length + 2)
|
|
.reduce((a, b) => a + b, -1);
|
|
const arrayOverhead =
|
|
minId === 0 ? maxId : 16 + ("" + minId).length + maxId;
|
|
return arrayOverhead < objectOverhead ? [minId, maxId] : false;
|
|
}
|
|
|
|
/**
|
|
* @param {Chunk} chunk chunk whose modules will be rendered
|
|
* @param {ModuleFilterPredicate} filterFn function used to filter modules from chunk to render
|
|
* @param {ModuleTemplate} moduleTemplate ModuleTemplate instance used to render modules
|
|
* @param {TODO | TODO[]} dependencyTemplates templates needed for each module to render dependencies
|
|
* @param {string=} prefix applying prefix strings
|
|
* @returns {ConcatSource} rendered chunk modules in a Source object
|
|
*/
|
|
static renderChunkModules(
|
|
chunk,
|
|
filterFn,
|
|
moduleTemplate,
|
|
dependencyTemplates,
|
|
prefix = ""
|
|
) {
|
|
const source = new ConcatSource();
|
|
const modules = chunk.getModules().filter(filterFn);
|
|
let removedModules;
|
|
if (chunk instanceof HotUpdateChunk) {
|
|
removedModules = chunk.removedModules;
|
|
}
|
|
if (
|
|
modules.length === 0 &&
|
|
(!removedModules || removedModules.length === 0)
|
|
) {
|
|
source.add("[]");
|
|
return source;
|
|
}
|
|
/** @type {{id: string|number, source: Source|string}[]} */
|
|
const allModules = modules.map(module => {
|
|
return {
|
|
id: module.id,
|
|
source: moduleTemplate.render(module, dependencyTemplates, {
|
|
chunk
|
|
})
|
|
};
|
|
});
|
|
if (removedModules && removedModules.length > 0) {
|
|
for (const id of removedModules) {
|
|
allModules.push({
|
|
id,
|
|
source: "false"
|
|
});
|
|
}
|
|
}
|
|
const bounds = Template.getModulesArrayBounds(allModules);
|
|
if (bounds) {
|
|
// Render a spare array
|
|
const minId = bounds[0];
|
|
const maxId = bounds[1];
|
|
if (minId !== 0) {
|
|
source.add(`Array(${minId}).concat(`);
|
|
}
|
|
source.add("[\n");
|
|
/** @type {Map<string|number, {id: string|number, source: Source|string}>} */
|
|
const modules = new Map();
|
|
for (const module of allModules) {
|
|
modules.set(module.id, module);
|
|
}
|
|
for (let idx = minId; idx <= maxId; idx++) {
|
|
const module = modules.get(idx);
|
|
if (idx !== minId) {
|
|
source.add(",\n");
|
|
}
|
|
source.add(`/* ${idx} */`);
|
|
if (module) {
|
|
source.add("\n");
|
|
source.add(module.source);
|
|
}
|
|
}
|
|
source.add("\n" + prefix + "]");
|
|
if (minId !== 0) {
|
|
source.add(")");
|
|
}
|
|
} else {
|
|
// Render an object
|
|
source.add("{\n");
|
|
allModules.sort(stringifyIdSortPredicate).forEach((module, idx) => {
|
|
if (idx !== 0) {
|
|
source.add(",\n");
|
|
}
|
|
source.add(`\n/***/ ${JSON.stringify(module.id)}:\n`);
|
|
source.add(module.source);
|
|
});
|
|
source.add(`\n\n${prefix}}`);
|
|
}
|
|
return source;
|
|
}
|
|
}
|
|
|
|
module.exports = Template;
|