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Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
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/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const RequestShortener = require("../RequestShortener");

/** @typedef {import("../../declarations/WebpackOptions").StatsOptions} StatsOptions */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Compilation").CreateStatsOptionsContext} CreateStatsOptionsContext */
/** @typedef {import("../Compiler")} Compiler */

const applyDefaults = (options, defaults) => {
	for (const key of Object.keys(defaults)) {
		if (typeof options[key] === "undefined") {
			options[key] = defaults[key];
		}
	}
};

const NAMED_PRESETS = {
	verbose: {
		hash: true,
		builtAt: true,
		relatedAssets: true,
		entrypoints: true,
		chunkGroups: true,
		ids: true,
		modules: false,
		chunks: true,
		chunkRelations: true,
		chunkModules: true,
		dependentModules: true,
		chunkOrigins: true,
		depth: true,
		env: true,
		reasons: true,
		usedExports: true,
		providedExports: true,
		optimizationBailout: true,
		errorDetails: true,
		errorStack: true,
		publicPath: true,
		logging: "verbose",
		orphanModules: true,
		runtimeModules: true,
		exclude: false,
		errorsSpace: Infinity,
		warningsSpace: Infinity,
		modulesSpace: Infinity,
		chunkModulesSpace: Infinity,
		assetsSpace: Infinity,
		reasonsSpace: Infinity,
		children: true
	},
	detailed: {
		hash: true,
		builtAt: true,
		relatedAssets: true,
		entrypoints: true,
		chunkGroups: true,
		ids: true,
		chunks: true,
		chunkRelations: true,
		chunkModules: false,
		chunkOrigins: true,
		depth: true,
		usedExports: true,
		providedExports: true,
		optimizationBailout: true,
		errorDetails: true,
		publicPath: true,
		logging: true,
		runtimeModules: true,
		exclude: false,
		errorsSpace: 1000,
		warningsSpace: 1000,
		modulesSpace: 1000,
		assetsSpace: 1000,
		reasonsSpace: 1000
	},
	minimal: {
		all: false,
		version: true,
		timings: true,
		modules: true,
		errorsSpace: 0,
		warningsSpace: 0,
		modulesSpace: 0,
		assets: true,
		assetsSpace: 0,
		errors: true,
		errorsCount: true,
		warnings: true,
		warningsCount: true,
		logging: "warn"
	},
	"errors-only": {
		all: false,
		errors: true,
		errorsCount: true,
		errorsSpace: Infinity,
		moduleTrace: true,
		logging: "error"
	},
	"errors-warnings": {
		all: false,
		errors: true,
		errorsCount: true,
		errorsSpace: Infinity,
		warnings: true,
		warningsCount: true,
		warningsSpace: Infinity,
		logging: "warn"
	},
	summary: {
		all: false,
		version: true,
		errorsCount: true,
		warningsCount: true
	},
	none: {
		all: false
	}
};

const NORMAL_ON = ({ all }) => all !== false;
const NORMAL_OFF = ({ all }) => all === true;
const ON_FOR_TO_STRING = ({ all }, { forToString }) =>
	forToString ? all !== false : all === true;
const OFF_FOR_TO_STRING = ({ all }, { forToString }) =>
	forToString ? all === true : all !== false;
const AUTO_FOR_TO_STRING = ({ all }, { forToString }) => {
	if (all === false) return false;
	if (all === true) return true;
	if (forToString) return "auto";
	return true;
};

/** @type {Record any>} */
const DEFAULTS = {
	context: (options, context, compilation) => compilation.compiler.context,
	requestShortener: (options, context, compilation) =>
		compilation.compiler.context === options.context
			? compilation.requestShortener
			: new RequestShortener(options.context, compilation.compiler.root),
	performance: NORMAL_ON,
	hash: OFF_FOR_TO_STRING,
	env: NORMAL_OFF,
	version: NORMAL_ON,
	timings: NORMAL_ON,
	builtAt: OFF_FOR_TO_STRING,
	assets: NORMAL_ON,
	entrypoints: AUTO_FOR_TO_STRING,
	chunkGroups: OFF_FOR_TO_STRING,
	chunkGroupAuxiliary: OFF_FOR_TO_STRING,
	chunkGroupChildren: OFF_FOR_TO_STRING,
	chunkGroupMaxAssets: (o, { forToString }) => (forToString ? 5 : Infinity),
	chunks: OFF_FOR_TO_STRING,
	chunkRelations: OFF_FOR_TO_STRING,
	chunkModules: ({ all, modules }) => {
		if (all === false) return false;
		if (all === true) return true;
		if (modules) return false;
		return true;
	},
	dependentModules: OFF_FOR_TO_STRING,
	chunkOrigins: OFF_FOR_TO_STRING,
	ids: OFF_FOR_TO_STRING,
	modules: ({ all, chunks, chunkModules }, { forToString }) => {
		if (all === false) return false;
		if (all === true) return true;
		if (forToString && chunks && chunkModules) return false;
		return true;
	},
	nestedModules: OFF_FOR_TO_STRING,
	groupModulesByType: ON_FOR_TO_STRING,
	groupModulesByCacheStatus: ON_FOR_TO_STRING,
	groupModulesByLayer: ON_FOR_TO_STRING,
	groupModulesByAttributes: ON_FOR_TO_STRING,
	groupModulesByPath: ON_FOR_TO_STRING,
	groupModulesByExtension: ON_FOR_TO_STRING,
	modulesSpace: (o, { forToString }) => (forToString ? 15 : Infinity),
	chunkModulesSpace: (o, { forToString }) => (forToString ? 10 : Infinity),
	nestedModulesSpace: (o, { forToString }) => (forToString ? 10 : Infinity),
	relatedAssets: OFF_FOR_TO_STRING,
	groupAssetsByEmitStatus: ON_FOR_TO_STRING,
	groupAssetsByInfo: ON_FOR_TO_STRING,
	groupAssetsByPath: ON_FOR_TO_STRING,
	groupAssetsByExtension: ON_FOR_TO_STRING,
	groupAssetsByChunk: ON_FOR_TO_STRING,
	assetsSpace: (o, { forToString }) => (forToString ? 15 : Infinity),
	orphanModules: OFF_FOR_TO_STRING,
	runtimeModules: ({ all, runtime }, { forToString }) =>
		runtime !== undefined
			? runtime
			: forToString
				? all === true
				: all !== false,
	cachedModules: ({ all, cached }, { forToString }) =>
		cached !== undefined ? cached : forToString ? all === true : all !== false,
	moduleAssets: OFF_FOR_TO_STRING,
	depth: OFF_FOR_TO_STRING,
	cachedAssets: OFF_FOR_TO_STRING,
	reasons: OFF_FOR_TO_STRING,
	reasonsSpace: (o, { forToString }) => (forToString ? 15 : Infinity),
	groupReasonsByOrigin: ON_FOR_TO_STRING,
	usedExports: OFF_FOR_TO_STRING,
	providedExports: OFF_FOR_TO_STRING,
	optimizationBailout: OFF_FOR_TO_STRING,
	children: OFF_FOR_TO_STRING,
	source: NORMAL_OFF,
	moduleTrace: NORMAL_ON,
	errors: NORMAL_ON,
	errorsCount: NORMAL_ON,
	errorDetails: AUTO_FOR_TO_STRING,
	errorStack: OFF_FOR_TO_STRING,
	warnings: NORMAL_ON,
	warningsCount: NORMAL_ON,
	publicPath: OFF_FOR_TO_STRING,
	logging: ({ all }, { forToString }) =>
		forToString && all !== false ? "info" : false,
	loggingDebug: () => [],
	loggingTrace: OFF_FOR_TO_STRING,
	excludeModules: () => [],
	excludeAssets: () => [],
	modulesSort: () => "depth",
	chunkModulesSort: () => "name",
	nestedModulesSort: () => false,
	chunksSort: () => false,
	assetsSort: () => "!size",
	outputPath: OFF_FOR_TO_STRING,
	colors: () => false
};

const normalizeFilter = item => {
	if (typeof item === "string") {
		const regExp = new RegExp(
			`[\\\\/]${item.replace(/[-[\]{}()*+?.\\^$|]/g, "\\$&")}([\\\\/]|$|!|\\?)`
		);
		return ident => regExp.test(ident);
	}
	if (item && typeof item === "object" && typeof item.test === "function") {
		return ident => item.test(ident);
	}
	if (typeof item === "function") {
		return item;
	}
	if (typeof item === "boolean") {
		return () => item;
	}
};

const NORMALIZER = {
	excludeModules: value => {
		if (!Array.isArray(value)) {
			value = value ? [value] : [];
		}
		return value.map(normalizeFilter);
	},
	excludeAssets: value => {
		if (!Array.isArray(value)) {
			value = value ? [value] : [];
		}
		return value.map(normalizeFilter);
	},
	warningsFilter: value => {
		if (!Array.isArray(value)) {
			value = value ? [value] : [];
		}
		return value.map(filter => {
			if (typeof filter === "string") {
				return (warning, warningString) => warningString.includes(filter);
			}
			if (filter instanceof RegExp) {
				return (warning, warningString) => filter.test(warningString);
			}
			if (typeof filter === "function") {
				return filter;
			}
			throw new Error(
				`Can only filter warnings with Strings or RegExps. (Given: ${filter})`
			);
		});
	},
	logging: value => {
		if (value === true) value = "log";
		return value;
	},
	loggingDebug: value => {
		if (!Array.isArray(value)) {
			value = value ? [value] : [];
		}
		return value.map(normalizeFilter);
	}
};

class DefaultStatsPresetPlugin {
	/**
	 * Apply the plugin
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.compilation.tap("DefaultStatsPresetPlugin", compilation => {
			for (const key of Object.keys(NAMED_PRESETS)) {
				const defaults = NAMED_PRESETS[key];
				compilation.hooks.statsPreset
					.for(key)
					.tap("DefaultStatsPresetPlugin", (options, context) => {
						applyDefaults(options, defaults);
					});
			}
			compilation.hooks.statsNormalize.tap(
				"DefaultStatsPresetPlugin",
				(options, context) => {
					for (const key of Object.keys(DEFAULTS)) {
						if (options[key] === undefined)
							options[key] = DEFAULTS[key](options, context, compilation);
					}
					for (const key of Object.keys(NORMALIZER)) {
						options[key] = NORMALIZER[key](options[key]);
					}
				}
			);
		});
	}
}
module.exports = DefaultStatsPresetPlugin;