chushihua

node_modules/webpack/lib/Template.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const Tapable = require("tapable");
+const ConcatSource = require("webpack-sources").ConcatSource;
+
+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?\{\n?|\n?\}$/g;
+const INDENT_MULTILINE_REGEX = /^\t/mg;
+const IDENTIFIER_NAME_REPLACE_REGEX = /^[^a-zA-Z$_]/;
+const IDENTIFIER_ALPHA_NUMERIC_NAME_REPLACE_REGEX = /[^a-zA-Z0-9$_]/g;
+const PATH_NAME_NORMALIZE_REPLACE_REGEX = /[^a-zA-Z0-9_!§$()=\-^°]+/g;
+const MATCH_PADDED_HYPHENS_REPLACE_REGEX = /^-|-$/g;
+
+module.exports = class Template extends Tapable {
+	constructor(outputOptions) {
+		super();
+		this.outputOptions = outputOptions || {};
+	}
+
+	static getFunctionContent(fn) {
+		return fn.toString().replace(FUNCTION_CONTENT_REGEX, "").replace(INDENT_MULTILINE_REGEX, "");
+	}
+
+	static toIdentifier(str) {
+		if(typeof str !== "string") return "";
+		return str.replace(IDENTIFIER_NAME_REPLACE_REGEX, "_").replace(IDENTIFIER_ALPHA_NUMERIC_NAME_REPLACE_REGEX, "_");
+	}
+
+	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
+	static numberToIdentifer(n) {
+		// lower case
+		if(n < DELTA_A_TO_Z) return String.fromCharCode(START_LOWERCASE_ALPHABET_CODE + n);
+
+		// upper case
+		n -= DELTA_A_TO_Z;
+		if(n < DELTA_A_TO_Z) return String.fromCharCode(START_UPPERCASE_ALPHABET_CODE + n);
+
+		// fall back to _ + number
+		n -= DELTA_A_TO_Z;
+		return "_" + n;
+	}
+
+	indent(str) {
+		if(Array.isArray(str)) {
+			return str.map(this.indent.bind(this)).join("\n");
+		} else {
+			str = str.trimRight();
+			if(!str) return "";
+			var ind = (str[0] === "\n" ? "" : "\t");
+			return ind + str.replace(/\n([^\n])/g, "\n\t$1");
+		}
+	}
+
+	prefix(str, prefix) {
+		if(Array.isArray(str)) {
+			str = str.join("\n");
+		}
+		str = str.trim();
+		if(!str) return "";
+		const ind = (str[0] === "\n" ? "" : prefix);
+		return ind + str.replace(/\n([^\n])/g, "\n" + prefix + "$1");
+	}
+
+	asString(str) {
+		if(Array.isArray(str)) {
+			return str.join("\n");
+		}
+		return str;
+	}
+
+	getModulesArrayBounds(modules) {
+		if(!modules.every(moduleIdIsNumber))
+			return false;
+		var maxId = -Infinity;
+		var minId = Infinity;
+		modules.forEach(function(module) {
+			if(maxId < module.id) maxId = module.id;
+			if(minId > module.id) minId = module.id;
+		});
+		if(minId < 16 + ("" + minId).length) {
+			// add minId x ',' instead of 'Array(minId).concat(...)'
+			minId = 0;
+		}
+		var objectOverhead = modules.map(function(module) {
+			var idLength = (module.id + "").length;
+			return idLength + 2;
+		}).reduce(function(a, b) {
+			return a + b;
+		}, -1);
+		var arrayOverhead = minId === 0 ? maxId : 16 + ("" + minId).length + maxId;
+		return arrayOverhead < objectOverhead ? [minId, maxId] : false;
+	}
+
+	renderChunkModules(chunk, moduleTemplate, dependencyTemplates, prefix) {
+		if(!prefix) prefix = "";
+		var source = new ConcatSource();
+		if(chunk.getNumberOfModules() === 0) {
+			source.add("[]");
+			return source;
+		}
+		var removedModules = chunk.removedModules;
+		var allModules = chunk.mapModules(function(module) {
+			return {
+				id: module.id,
+				source: moduleTemplate.render(module, dependencyTemplates, chunk)
+			};
+		});
+		if(removedModules && removedModules.length > 0) {
+			removedModules.forEach(function(id) {
+				allModules.push({
+					id: id,
+					source: "false"
+				});
+			});
+		}
+		var bounds = this.getModulesArrayBounds(allModules);
+
+		if(bounds) {
+			// Render a spare array
+			var minId = bounds[0];
+			var maxId = bounds[1];
+			if(minId !== 0) source.add("Array(" + minId + ").concat(");
+			source.add("[\n");
+			var modules = {};
+			allModules.forEach(function(module) {
+				modules[module.id] = module;
+			});
+			for(var idx = minId; idx <= maxId; idx++) {
+				var module = modules[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(function(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;
+	}
+};
+
+function stringifyIdSortPredicate(a, b) {
+	var aId = a.id + "";
+	var bId = b.id + "";
+	if(aId < bId) return -1;
+	if(aId > bId) return 1;
+	return 0;
+}
+
+function moduleIdIsNumber(module) {
+	return typeof module.id === "number";
+}