271 lines
		
	
	
		
			7.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			271 lines
		
	
	
		
			7.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
 | 
						|
	MIT License http://www.opensource.org/licenses/mit-license.php
 | 
						|
	Author Tobias Koppers @sokra
 | 
						|
*/
 | 
						|
 | 
						|
"use strict";
 | 
						|
 | 
						|
const { parseResource } = require("../util/identifier");
 | 
						|
 | 
						|
/** @typedef {import("estree").Expression} Expression */
 | 
						|
/** @typedef {import("../../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
 | 
						|
/** @typedef {import("../../declarations/WebpackOptions").ModuleOptionsNormalized} ModuleOptions */
 | 
						|
/** @typedef {import("../Dependency").DependencyLocation} DependencyLocation */
 | 
						|
/** @typedef {import("../javascript/BasicEvaluatedExpression")} BasicEvaluatedExpression */
 | 
						|
/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
 | 
						|
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
 | 
						|
/** @typedef {import("./ContextDependency")} ContextDependency */
 | 
						|
/** @typedef {import("./ContextDependency").ContextDependencyOptions} ContextDependencyOptions */
 | 
						|
 | 
						|
/**
 | 
						|
 * Escapes regular expression metacharacters
 | 
						|
 * @param {string} str String to quote
 | 
						|
 * @returns {string} Escaped string
 | 
						|
 */
 | 
						|
const quoteMeta = (str) => str.replace(/[-[\]\\/{}()*+?.^$|]/g, "\\$&");
 | 
						|
 | 
						|
/**
 | 
						|
 * @param {string} prefix prefix
 | 
						|
 * @returns {{prefix: string, context: string}} result
 | 
						|
 */
 | 
						|
const splitContextFromPrefix = (prefix) => {
 | 
						|
	const idx = prefix.lastIndexOf("/");
 | 
						|
	let context = ".";
 | 
						|
	if (idx >= 0) {
 | 
						|
		context = prefix.slice(0, idx);
 | 
						|
		prefix = `.${prefix.slice(idx)}`;
 | 
						|
	}
 | 
						|
	return {
 | 
						|
		context,
 | 
						|
		prefix
 | 
						|
	};
 | 
						|
};
 | 
						|
 | 
						|
/** @typedef {Partial<Omit<ContextDependencyOptions, "resource">>} PartialContextDependencyOptions */
 | 
						|
/** @typedef {{ new(options: ContextDependencyOptions, range: Range, valueRange: Range, ...args: any[]): ContextDependency }} ContextDependencyConstructor */
 | 
						|
 | 
						|
/**
 | 
						|
 * @param {ContextDependencyConstructor} Dep the Dependency class
 | 
						|
 * @param {Range} range source range
 | 
						|
 * @param {BasicEvaluatedExpression} param context param
 | 
						|
 * @param {Expression} expr expr
 | 
						|
 * @param {Pick<JavascriptParserOptions, `${"expr"|"wrapped"}Context${"Critical"|"Recursive"|"RegExp"}` | "exprContextRequest">} options options for context creation
 | 
						|
 * @param {PartialContextDependencyOptions} contextOptions options for the ContextModule
 | 
						|
 * @param {JavascriptParser} parser the parser
 | 
						|
 * @param {...EXPECTED_ANY} depArgs depArgs
 | 
						|
 * @returns {ContextDependency} the created Dependency
 | 
						|
 */
 | 
						|
module.exports.create = (
 | 
						|
	Dep,
 | 
						|
	range,
 | 
						|
	param,
 | 
						|
	expr,
 | 
						|
	options,
 | 
						|
	contextOptions,
 | 
						|
	parser,
 | 
						|
	...depArgs
 | 
						|
) => {
 | 
						|
	if (param.isTemplateString()) {
 | 
						|
		const quasis = /** @type {BasicEvaluatedExpression[]} */ (param.quasis);
 | 
						|
		const prefixRaw = /** @type {string} */ (quasis[0].string);
 | 
						|
		const postfixRaw =
 | 
						|
			/** @type {string} */
 | 
						|
			(quasis.length > 1 ? quasis[quasis.length - 1].string : "");
 | 
						|
 | 
						|
		const valueRange = /** @type {Range} */ (param.range);
 | 
						|
		const { context, prefix } = splitContextFromPrefix(prefixRaw);
 | 
						|
		const {
 | 
						|
			path: postfix,
 | 
						|
			query,
 | 
						|
			fragment
 | 
						|
		} = parseResource(postfixRaw, parser);
 | 
						|
 | 
						|
		// When there are more than two quasis, the generated RegExp can be more precise
 | 
						|
		// We join the quasis with the expression regexp
 | 
						|
		const innerQuasis = quasis.slice(1, -1);
 | 
						|
		const innerRegExp =
 | 
						|
			/** @type {RegExp} */ (options.wrappedContextRegExp).source +
 | 
						|
			innerQuasis
 | 
						|
				.map(
 | 
						|
					(q) =>
 | 
						|
						quoteMeta(/** @type {string} */ (q.string)) +
 | 
						|
						/** @type {RegExp} */ (options.wrappedContextRegExp).source
 | 
						|
				)
 | 
						|
				.join("");
 | 
						|
 | 
						|
		// Example: `./context/pre${e}inner${e}inner2${e}post?query#frag`
 | 
						|
		// context: "./context"
 | 
						|
		// prefix: "./pre"
 | 
						|
		// innerQuasis: [BEE("inner"), BEE("inner2")]
 | 
						|
		// (BEE = BasicEvaluatedExpression)
 | 
						|
		// postfix: "post"
 | 
						|
		// query: "?query"
 | 
						|
		// fragment: "#frag"
 | 
						|
		// regExp: /^\.\/pre.*inner.*inner2.*post$/
 | 
						|
		const regExp = new RegExp(
 | 
						|
			`^${quoteMeta(prefix)}${innerRegExp}${quoteMeta(postfix)}$`
 | 
						|
		);
 | 
						|
		const dep = new Dep(
 | 
						|
			{
 | 
						|
				request: context + query + fragment,
 | 
						|
				recursive: /** @type {boolean} */ (options.wrappedContextRecursive),
 | 
						|
				regExp,
 | 
						|
				mode: "sync",
 | 
						|
				...contextOptions
 | 
						|
			},
 | 
						|
			range,
 | 
						|
			valueRange,
 | 
						|
			...depArgs
 | 
						|
		);
 | 
						|
		dep.loc = /** @type {DependencyLocation} */ (expr.loc);
 | 
						|
 | 
						|
		/** @type {{ value: string, range: Range }[]} */
 | 
						|
		const replaces = [];
 | 
						|
		const parts = /** @type {BasicEvaluatedExpression[]} */ (param.parts);
 | 
						|
 | 
						|
		for (const [i, part] of parts.entries()) {
 | 
						|
			if (i % 2 === 0) {
 | 
						|
				// Quasis or merged quasi
 | 
						|
				let range = /** @type {Range} */ (part.range);
 | 
						|
				let value = /** @type {string} */ (part.string);
 | 
						|
				if (param.templateStringKind === "cooked") {
 | 
						|
					value = JSON.stringify(value);
 | 
						|
					value = value.slice(1, -1);
 | 
						|
				}
 | 
						|
				if (i === 0) {
 | 
						|
					// prefix
 | 
						|
					value = prefix;
 | 
						|
					range = [
 | 
						|
						/** @type {Range} */ (param.range)[0],
 | 
						|
						/** @type {Range} */ (part.range)[1]
 | 
						|
					];
 | 
						|
					value =
 | 
						|
						(param.templateStringKind === "cooked" ? "`" : "String.raw`") +
 | 
						|
						value;
 | 
						|
				} else if (i === parts.length - 1) {
 | 
						|
					// postfix
 | 
						|
					value = postfix;
 | 
						|
					range = [
 | 
						|
						/** @type {Range} */ (part.range)[0],
 | 
						|
						/** @type {Range} */ (param.range)[1]
 | 
						|
					];
 | 
						|
					value = `${value}\``;
 | 
						|
				} else if (
 | 
						|
					part.expression &&
 | 
						|
					part.expression.type === "TemplateElement" &&
 | 
						|
					part.expression.value.raw === value
 | 
						|
				) {
 | 
						|
					// Shortcut when it's a single quasi and doesn't need to be replaced
 | 
						|
					continue;
 | 
						|
				}
 | 
						|
				replaces.push({
 | 
						|
					range,
 | 
						|
					value
 | 
						|
				});
 | 
						|
			} else {
 | 
						|
				// Expression
 | 
						|
				parser.walkExpression(
 | 
						|
					/** @type {Expression} */
 | 
						|
					(part.expression)
 | 
						|
				);
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		dep.replaces = replaces;
 | 
						|
		dep.critical =
 | 
						|
			options.wrappedContextCritical &&
 | 
						|
			"a part of the request of a dependency is an expression";
 | 
						|
		return dep;
 | 
						|
	} else if (
 | 
						|
		param.isWrapped() &&
 | 
						|
		((param.prefix && param.prefix.isString()) ||
 | 
						|
			(param.postfix && param.postfix.isString()))
 | 
						|
	) {
 | 
						|
		const prefixRaw =
 | 
						|
			/** @type {string} */
 | 
						|
			(param.prefix && param.prefix.isString() ? param.prefix.string : "");
 | 
						|
		const postfixRaw =
 | 
						|
			/** @type {string} */
 | 
						|
			(param.postfix && param.postfix.isString() ? param.postfix.string : "");
 | 
						|
		const prefixRange =
 | 
						|
			param.prefix && param.prefix.isString() ? param.prefix.range : null;
 | 
						|
		const postfixRange =
 | 
						|
			param.postfix && param.postfix.isString() ? param.postfix.range : null;
 | 
						|
		const valueRange = /** @type {Range} */ (param.range);
 | 
						|
		const { context, prefix } = splitContextFromPrefix(prefixRaw);
 | 
						|
		const {
 | 
						|
			path: postfix,
 | 
						|
			query,
 | 
						|
			fragment
 | 
						|
		} = parseResource(postfixRaw, parser);
 | 
						|
		const regExp = new RegExp(
 | 
						|
			`^${quoteMeta(prefix)}${
 | 
						|
				/** @type {RegExp} */ (options.wrappedContextRegExp).source
 | 
						|
			}${quoteMeta(postfix)}$`
 | 
						|
		);
 | 
						|
		const dep = new Dep(
 | 
						|
			{
 | 
						|
				request: context + query + fragment,
 | 
						|
				recursive: /** @type {boolean} */ (options.wrappedContextRecursive),
 | 
						|
				regExp,
 | 
						|
				mode: "sync",
 | 
						|
				...contextOptions
 | 
						|
			},
 | 
						|
			range,
 | 
						|
			valueRange,
 | 
						|
			...depArgs
 | 
						|
		);
 | 
						|
		dep.loc = /** @type {DependencyLocation} */ (expr.loc);
 | 
						|
		const replaces = [];
 | 
						|
		if (prefixRange) {
 | 
						|
			replaces.push({
 | 
						|
				range: prefixRange,
 | 
						|
				value: JSON.stringify(prefix)
 | 
						|
			});
 | 
						|
		}
 | 
						|
		if (postfixRange) {
 | 
						|
			replaces.push({
 | 
						|
				range: postfixRange,
 | 
						|
				value: JSON.stringify(postfix)
 | 
						|
			});
 | 
						|
		}
 | 
						|
		dep.replaces = replaces;
 | 
						|
		dep.critical =
 | 
						|
			options.wrappedContextCritical &&
 | 
						|
			"a part of the request of a dependency is an expression";
 | 
						|
 | 
						|
		if (parser && param.wrappedInnerExpressions) {
 | 
						|
			for (const part of param.wrappedInnerExpressions) {
 | 
						|
				if (part.expression) {
 | 
						|
					parser.walkExpression(
 | 
						|
						/** @type {Expression} */
 | 
						|
						(part.expression)
 | 
						|
					);
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		return dep;
 | 
						|
	}
 | 
						|
	const dep = new Dep(
 | 
						|
		{
 | 
						|
			request: /** @type {string} */ (options.exprContextRequest),
 | 
						|
			recursive: /** @type {boolean} */ (options.exprContextRecursive),
 | 
						|
			regExp: /** @type {RegExp} */ (options.exprContextRegExp),
 | 
						|
			mode: "sync",
 | 
						|
			...contextOptions
 | 
						|
		},
 | 
						|
		range,
 | 
						|
		/** @type {Range} */ (param.range),
 | 
						|
		...depArgs
 | 
						|
	);
 | 
						|
	dep.loc = /** @type {DependencyLocation} */ (expr.loc);
 | 
						|
	dep.critical =
 | 
						|
		options.exprContextCritical &&
 | 
						|
		"the request of a dependency is an expression";
 | 
						|
 | 
						|
	parser.walkExpression(/** @type {Expression} */ (param.expression));
 | 
						|
 | 
						|
	return dep;
 | 
						|
};
 |