422 lines
13 KiB
JavaScript
422 lines
13 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const { ConcatSource, PrefixSource } = require("webpack-sources");
|
|
const { WEBPACK_MODULE_TYPE_RUNTIME } = require("./ModuleTypeConstants");
|
|
const RuntimeGlobals = require("./RuntimeGlobals");
|
|
|
|
/** @typedef {import("webpack-sources").Source} Source */
|
|
/** @typedef {import("../declarations/WebpackOptions").Output} OutputOptions */
|
|
/** @typedef {import("./Chunk")} Chunk */
|
|
/** @typedef {import("./ChunkGraph")} ChunkGraph */
|
|
/** @typedef {import("./CodeGenerationResults")} CodeGenerationResults */
|
|
/** @typedef {import("./Compilation").AssetInfo} AssetInfo */
|
|
/** @typedef {import("./Compilation").PathData} PathData */
|
|
/** @typedef {import("./DependencyTemplates")} DependencyTemplates */
|
|
/** @typedef {import("./Module")} Module */
|
|
/** @typedef {import("./ModuleGraph")} ModuleGraph */
|
|
/** @typedef {import("./ModuleTemplate")} ModuleTemplate */
|
|
/** @typedef {import("./RuntimeModule")} RuntimeModule */
|
|
/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
|
|
/** @typedef {import("./javascript/JavascriptModulesPlugin").ChunkRenderContext} ChunkRenderContext */
|
|
/** @typedef {import("./javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
|
|
|
|
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 NUMBER_OF_IDENTIFIER_START_CHARS = DELTA_A_TO_Z * 2 + 2; // a-z A-Z _ $
|
|
const NUMBER_OF_IDENTIFIER_CONTINUATION_CHARS =
|
|
NUMBER_OF_IDENTIFIER_START_CHARS + 10; // a-z A-Z _ $ 0-9
|
|
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 {Object} RenderManifestOptions
|
|
* @property {Chunk} chunk the chunk used to render
|
|
* @property {string} hash
|
|
* @property {string} fullHash
|
|
* @property {OutputOptions} outputOptions
|
|
* @property {CodeGenerationResults} codeGenerationResults
|
|
* @property {{javascript: ModuleTemplate}} moduleTemplates
|
|
* @property {DependencyTemplates} dependencyTemplates
|
|
* @property {RuntimeTemplate} runtimeTemplate
|
|
* @property {ModuleGraph} moduleGraph
|
|
* @property {ChunkGraph} chunkGraph
|
|
*/
|
|
|
|
/** @typedef {RenderManifestEntryTemplated | RenderManifestEntryStatic} RenderManifestEntry */
|
|
|
|
/**
|
|
* @typedef {Object} RenderManifestEntryTemplated
|
|
* @property {function(): Source} render
|
|
* @property {string | function(PathData, AssetInfo=): string} filenameTemplate
|
|
* @property {PathData=} pathOptions
|
|
* @property {AssetInfo=} info
|
|
* @property {string} identifier
|
|
* @property {string=} hash
|
|
* @property {boolean=} auxiliary
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} RenderManifestEntryStatic
|
|
* @property {function(): Source} render
|
|
* @property {string} filename
|
|
* @property {AssetInfo} info
|
|
* @property {string} identifier
|
|
* @property {string=} hash
|
|
* @property {boolean=} auxiliary
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} HasId
|
|
* @property {number | string} id
|
|
*/
|
|
|
|
/**
|
|
* @typedef {function(Module, number): boolean} ModuleFilterPredicate
|
|
*/
|
|
|
|
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 `/* ${str.replace(COMMENT_END_REGEX, "* /")} */`;
|
|
}
|
|
|
|
/**
|
|
* @param {string} str string path to be normalized
|
|
* @returns {string} normalized bundle-safe path
|
|
*/
|
|
static toPath(str) {
|
|
if (typeof str !== "string") return "";
|
|
return str
|
|
.replace(PATH_NAME_NORMALIZE_REPLACE_REGEX, "-")
|
|
.replace(MATCH_PADDED_HYPHENS_REPLACE_REGEX, "");
|
|
}
|
|
|
|
// map number to a single character a-z, A-Z or multiple characters if number is too big
|
|
/**
|
|
* @param {number} n number to convert to ident
|
|
* @returns {string} returns single character ident
|
|
*/
|
|
static numberToIdentifier(n) {
|
|
if (n >= NUMBER_OF_IDENTIFIER_START_CHARS) {
|
|
// use multiple letters
|
|
return (
|
|
Template.numberToIdentifier(n % NUMBER_OF_IDENTIFIER_START_CHARS) +
|
|
Template.numberToIdentifierContinuation(
|
|
Math.floor(n / NUMBER_OF_IDENTIFIER_START_CHARS)
|
|
)
|
|
);
|
|
}
|
|
|
|
// lower case
|
|
if (n < DELTA_A_TO_Z) {
|
|
return String.fromCharCode(START_LOWERCASE_ALPHABET_CODE + n);
|
|
}
|
|
n -= DELTA_A_TO_Z;
|
|
|
|
// upper case
|
|
if (n < DELTA_A_TO_Z) {
|
|
return String.fromCharCode(START_UPPERCASE_ALPHABET_CODE + n);
|
|
}
|
|
|
|
if (n === DELTA_A_TO_Z) return "_";
|
|
return "$";
|
|
}
|
|
|
|
/**
|
|
* @param {number} n number to convert to ident
|
|
* @returns {string} returns single character ident
|
|
*/
|
|
static numberToIdentifierContinuation(n) {
|
|
if (n >= NUMBER_OF_IDENTIFIER_CONTINUATION_CHARS) {
|
|
// use multiple letters
|
|
return (
|
|
Template.numberToIdentifierContinuation(
|
|
n % NUMBER_OF_IDENTIFIER_CONTINUATION_CHARS
|
|
) +
|
|
Template.numberToIdentifierContinuation(
|
|
Math.floor(n / NUMBER_OF_IDENTIFIER_CONTINUATION_CHARS)
|
|
)
|
|
);
|
|
}
|
|
|
|
// lower case
|
|
if (n < DELTA_A_TO_Z) {
|
|
return String.fromCharCode(START_LOWERCASE_ALPHABET_CODE + n);
|
|
}
|
|
n -= DELTA_A_TO_Z;
|
|
|
|
// upper case
|
|
if (n < DELTA_A_TO_Z) {
|
|
return String.fromCharCode(START_UPPERCASE_ALPHABET_CODE + n);
|
|
}
|
|
n -= DELTA_A_TO_Z;
|
|
|
|
// numbers
|
|
if (n < 10) {
|
|
return `${n}`;
|
|
}
|
|
|
|
if (n === 10) return "_";
|
|
return "$";
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @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.trimEnd();
|
|
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 + "$1");
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string|string[]} str string or string collection
|
|
* @returns {string} returns a single string from array
|
|
*/
|
|
static asString(str) {
|
|
if (Array.isArray(str)) {
|
|
return str.join("\n");
|
|
}
|
|
return str;
|
|
}
|
|
|
|
/**
|
|
* @typedef {Object} WithId
|
|
* @property {string|number} id
|
|
*/
|
|
|
|
/**
|
|
* @param {WithId[]} modules a collection of modules to get array bounds for
|
|
* @returns {[number, number] | false} returns the upper and lower array bounds
|
|
* or false if not every module has a number based id
|
|
*/
|
|
static getModulesArrayBounds(modules) {
|
|
let maxId = -Infinity;
|
|
let minId = Infinity;
|
|
for (const module of modules) {
|
|
const moduleId = module.id;
|
|
if (typeof moduleId !== "number") return false;
|
|
if (maxId < moduleId) maxId = moduleId;
|
|
if (minId > moduleId) minId = moduleId;
|
|
}
|
|
if (minId < 16 + ("" + minId).length) {
|
|
// add minId x ',' instead of 'Array(minId).concat(…)'
|
|
minId = 0;
|
|
}
|
|
// start with -1 because the first module needs no comma
|
|
let objectOverhead = -1;
|
|
for (const module of modules) {
|
|
// module id + colon + comma
|
|
objectOverhead += `${module.id}`.length + 2;
|
|
}
|
|
// number of commas, or when starting non-zero the length of Array(minId).concat()
|
|
const arrayOverhead = minId === 0 ? maxId : 16 + `${minId}`.length + maxId;
|
|
return arrayOverhead < objectOverhead ? [minId, maxId] : false;
|
|
}
|
|
|
|
/**
|
|
* @param {ChunkRenderContext} renderContext render context
|
|
* @param {Module[]} modules modules to render (should be ordered by identifier)
|
|
* @param {function(Module): Source} renderModule function to render a module
|
|
* @param {string=} prefix applying prefix strings
|
|
* @returns {Source | null} rendered chunk modules in a Source object or null if no modules
|
|
*/
|
|
static renderChunkModules(renderContext, modules, renderModule, prefix = "") {
|
|
const { chunkGraph } = renderContext;
|
|
var source = new ConcatSource();
|
|
if (modules.length === 0) {
|
|
return null;
|
|
}
|
|
/** @type {{id: string|number, source: Source|string}[]} */
|
|
const allModules = modules.map(module => {
|
|
return {
|
|
id: chunkGraph.getModuleId(module),
|
|
source: renderModule(module) || "false"
|
|
};
|
|
});
|
|
const bounds = Template.getModulesArrayBounds(allModules);
|
|
if (bounds) {
|
|
// Render a spare array
|
|
const minId = bounds[0];
|
|
const maxId = bounds[1];
|
|
if (minId !== 0) {
|
|
source.add(`Array(${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");
|
|
for (let i = 0; i < allModules.length; i++) {
|
|
const module = allModules[i];
|
|
if (i !== 0) {
|
|
source.add(",\n");
|
|
}
|
|
source.add(`\n/***/ ${JSON.stringify(module.id)}:\n`);
|
|
source.add(module.source);
|
|
}
|
|
source.add(`\n\n${prefix}}`);
|
|
}
|
|
return source;
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeModule[]} runtimeModules array of runtime modules in order
|
|
* @param {RenderContext & { codeGenerationResults?: CodeGenerationResults }} renderContext render context
|
|
* @returns {Source} rendered runtime modules in a Source object
|
|
*/
|
|
static renderRuntimeModules(runtimeModules, renderContext) {
|
|
const source = new ConcatSource();
|
|
for (const module of runtimeModules) {
|
|
const codeGenerationResults = renderContext.codeGenerationResults;
|
|
let runtimeSource;
|
|
if (codeGenerationResults) {
|
|
runtimeSource = codeGenerationResults.getSource(
|
|
module,
|
|
renderContext.chunk.runtime,
|
|
WEBPACK_MODULE_TYPE_RUNTIME
|
|
);
|
|
} else {
|
|
const codeGenResult = module.codeGeneration({
|
|
chunkGraph: renderContext.chunkGraph,
|
|
dependencyTemplates: renderContext.dependencyTemplates,
|
|
moduleGraph: renderContext.moduleGraph,
|
|
runtimeTemplate: renderContext.runtimeTemplate,
|
|
runtime: renderContext.chunk.runtime,
|
|
codeGenerationResults
|
|
});
|
|
if (!codeGenResult) continue;
|
|
runtimeSource = codeGenResult.sources.get("runtime");
|
|
}
|
|
if (runtimeSource) {
|
|
source.add(Template.toNormalComment(module.identifier()) + "\n");
|
|
if (!module.shouldIsolate()) {
|
|
source.add(runtimeSource);
|
|
source.add("\n\n");
|
|
} else if (renderContext.runtimeTemplate.supportsArrowFunction()) {
|
|
source.add("(() => {\n");
|
|
source.add(new PrefixSource("\t", runtimeSource));
|
|
source.add("\n})();\n\n");
|
|
} else {
|
|
source.add("!function() {\n");
|
|
source.add(new PrefixSource("\t", runtimeSource));
|
|
source.add("\n}();\n\n");
|
|
}
|
|
}
|
|
}
|
|
return source;
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeModule[]} runtimeModules array of runtime modules in order
|
|
* @param {RenderContext} renderContext render context
|
|
* @returns {Source} rendered chunk runtime modules in a Source object
|
|
*/
|
|
static renderChunkRuntimeModules(runtimeModules, renderContext) {
|
|
return new PrefixSource(
|
|
"/******/ ",
|
|
new ConcatSource(
|
|
`function(${RuntimeGlobals.require}) { // webpackRuntimeModules\n`,
|
|
this.renderRuntimeModules(runtimeModules, renderContext),
|
|
"}\n"
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
module.exports = Template;
|
|
module.exports.NUMBER_OF_IDENTIFIER_START_CHARS =
|
|
NUMBER_OF_IDENTIFIER_START_CHARS;
|
|
module.exports.NUMBER_OF_IDENTIFIER_CONTINUATION_CHARS =
|
|
NUMBER_OF_IDENTIFIER_CONTINUATION_CHARS;
|