text: /*
  	MIT License http://www.opensource.org/licenses/mit-license.php
  	Author Tobias Koppers @sokra
  */
  "use strict";
  
  const RequestShortener = require("./RequestShortener");
  const SizeFormatHelpers = require("./SizeFormatHelpers");
  const formatLocation = require("./formatLocation");
  
  const d = (v, def) => v === undefined ? def : v;
  
  class Stats {
  	constructor(compilation) {
  		this.compilation = compilation;
  		this.hash = compilation.hash;
  	}
  
  	hasWarnings() {
  		return this.compilation.warnings.length > 0;
  	}
  
  	hasErrors() {
  		return this.compilation.errors.length > 0;
  	}
  
  	toJson(options, forToString) {
  		if(typeof options === "boolean" || typeof options === "string") {
  			options = Stats.presetToOptions(options);
  		} else if(!options) {
  			options = {};
  		}
  
  		const compilation = this.compilation;
  		const requestShortener = new RequestShortener(d(options.context, process.cwd()));
  		const showPerformance = d(options.performance, true);
  		const showHash = d(options.hash, true);
  		const showVersion = d(options.version, true);
  		const showTimings = d(options.timings, true);
  		const showAssets = d(options.assets, true);
  		const showEntrypoints = d(options.entrypoints, !forToString);
  		const showChunks = d(options.chunks, true);
  		const showChunkModules = d(options.chunkModules, !!forToString);
  		const showChunkOrigins = d(options.chunkOrigins, !forToString);
  		const showModules = d(options.modules, !forToString);
  		const showDepth = d(options.depth, !forToString);
  		const showCachedModules = d(options.cached, true);
  		const showCachedAssets = d(options.cachedAssets, true);
  		const showReasons = d(options.reasons, !forToString);
  		const showUsedExports = d(options.usedExports, !forToString);
  		const showProvidedExports = d(options.providedExports, !forToString);
  		const showChildren = d(options.children, true);
  		const showSource = d(options.source, !forToString);
  		const showErrors = d(options.errors, true);
  		const showErrorDetails = d(options.errorDetails, !forToString);
  		const showWarnings = d(options.warnings, true);
  		const showPublicPath = d(options.publicPath, !forToString);
  		const excludeModules = [].concat(d(options.exclude, [])).map(str => {
  			if(typeof str !== "string") return str;
  			return new RegExp(`[\\\\/]${str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&")}([\\\\/]|$|!|\\?)`);
  		});
  		const maxModules = d(options.maxModules, forToString ? 15 : Infinity);
  		const sortModules = d(options.modulesSort, "id");
  		const sortChunks = d(options.chunksSort, "id");
  		const sortAssets = d(options.assetsSort, "");
  
  		const createModuleFilter = () => {
  			let i = 0;
  			return module => {
  				if(!showCachedModules && !module.built) {
  					return false;
  				}
  				if(excludeModules.length > 0) {
  					const ident = requestShortener.shorten(module.resource);
  					const excluded = excludeModules.some(regExp => regExp.test(ident));
  					if(excluded)
  						return false;
  				}
  				return i++ < maxModules;
  			};
  		};
  
  		const sortByField = (field) => {
  			let callback;
  			if(!field) {
  				callback = () => 0;
  				return callback;
  			}
  
  			if(field[0] === "!") {
  				field = field.substr(1);
  				callback = (a, b) => {
  					if(a[field] === null && b[field] === null) return 0;
  					if(a[field] === null) return 1;
  					if(b[field] === null) return -1;
  					if(a[field] === b[field]) return 0;
  					return a[field] < b[field] ? 1 : -1;
  				};
  			}
  			callback = (a, b) => {
  				if(a[field] === null && b[field] === null) return 0;
  				if(a[field] === null) return 1;
  				if(b[field] === null) return -1;
  				if(a[field] === b[field]) return 0;
  				return a[field] < b[field] ? -1 : 1;
  			};
  			return callback;
  		};
  
  		const formatError = (e) => {
  			let text = "";
  			if(typeof e === "string")
  				e = {
  					message: e
  				};
  			if(e.chunk) {
  				text += `chunk ${e.chunk.name || e.chunk.id}${e.chunk.hasRuntime() ? " [entry]" : e.chunk.isInitial() ? " [initial]" : ""}\n`;
  			}
  			if(e.file) {
  				text += `${e.file}\n`;
  			}
  			if(e.module && e.module.readableIdentifier && typeof e.module.readableIdentifier === "function") {
  				text += `${e.module.readableIdentifier(requestShortener)}\n`;
  			}
  			text += e.message;
  			if(showErrorDetails && e.details) text += `\n${e.details}`;
  			if(showErrorDetails && e.missing) text += e.missing.map(item => `\n[${item}]`).join("");
  			if(e.dependencies && e.origin) {
  				text += `\n @ ${e.origin.readableIdentifier(requestShortener)}`;
  				e.dependencies.forEach(dep => {
  					if(!dep.loc) return;
  					if(typeof dep.loc === "string") return;
  					const locInfo = formatLocation(dep.loc);
  					if(!locInfo) return;
  					text += ` ${locInfo}`;
  				});
  				let current = e.origin;
  				while(current.issuer) {
  					current = current.issuer;
  					text += `\n @ ${current.readableIdentifier(requestShortener)}`;
  				}
  			}
  			return text;
  		};
  
  		const obj = {
  			errors: compilation.errors.map(formatError),
  			warnings: compilation.warnings.map(formatError)
  		};
  
  		//We just hint other renderers since actually omitting
  		//errors/warnings from the JSON would be kind of weird.
  		Object.defineProperty(obj, "_showWarnings", {
  			value: showWarnings,
  			enumerable: false
  		});
  		Object.defineProperty(obj, "_showErrors", {
  			value: showErrors,
  			enumerable: false
  		});
  
  		if(showVersion) {
  			obj.version = require("../package.json").version;
  		}
  
  		if(showHash) obj.hash = this.hash;
  		if(showTimings && this.startTime && this.endTime) {
  			obj.time = this.endTime - this.startTime;
  		}
  		if(compilation.needAdditionalPass) {
  			obj.needAdditionalPass = true;
  		}
  		if(showPublicPath) {
  			obj.publicPath = this.compilation.mainTemplate.getPublicPath({
  				hash: this.compilation.hash
  			});
  		}
  		if(showAssets) {
  			const assetsByFile = {};
  			obj.assetsByChunkName = {};
  			obj.assets = Object.keys(compilation.assets).map(asset => {
  				const obj = {
  					name: asset,
  					size: compilation.assets[asset].size(),
  					chunks: [],
  					chunkNames: [],
  					emitted: compilation.assets[asset].emitted
  				};
  
  				if(showPerformance) {
  					obj.isOverSizeLimit = compilation.assets[asset].isOverSizeLimit;
  				}
  
  				assetsByFile[asset] = obj;
  				return obj;
  			}).filter(asset => showCachedAssets || asset.emitted);
  
  			compilation.chunks.forEach(chunk => {
  				chunk.files.forEach(asset => {
  					if(assetsByFile[asset]) {
  						chunk.ids.forEach(id => {
  							assetsByFile[asset].chunks.push(id);
  						});
  						if(chunk.name) {
  							assetsByFile[asset].chunkNames.push(chunk.name);
  							if(obj.assetsByChunkName[chunk.name])
  								obj.assetsByChunkName[chunk.name] = [].concat(obj.assetsByChunkName[chunk.name]).concat([asset]);
  							else
  								obj.assetsByChunkName[chunk.name] = asset;
  						}
  					}
  				});
  			});
  			obj.assets.sort(sortByField(sortAssets));
  		}
  
  		if(showEntrypoints) {
  			obj.entrypoints = {};
  			Object.keys(compilation.entrypoints).forEach(name => {
  				const ep = compilation.entrypoints[name];
  				obj.entrypoints[name] = {
  					chunks: ep.chunks.map(c => c.id),
  					assets: ep.chunks.reduce((array, c) => array.concat(c.files || []), [])
  				};
  				if(showPerformance) {
  					obj.entrypoints[name].isOverSizeLimit = ep.isOverSizeLimit;
  				}
  			});
  		}
  
  		function fnModule(module) {
  			const obj = {
  				id: module.id,
  				identifier: module.identifier(),
  				name: module.readableIdentifier(requestShortener),
  				index: module.index,
  				index2: module.index2,
  				size: module.size(),
  				cacheable: !!module.cacheable,
  				built: !!module.built,
  				optional: !!module.optional,
  				prefetched: !!module.prefetched,
  				chunks: module.chunks.map(chunk => chunk.id),
  				assets: Object.keys(module.assets || {}),
  				issuer: module.issuer && module.issuer.identifier(),
  				issuerId: module.issuer && module.issuer.id,
  				issuerName: module.issuer && module.issuer.readableIdentifier(requestShortener),
  				profile: module.profile,
  				failed: !!module.error,
  				errors: module.errors && module.dependenciesErrors && (module.errors.length + module.dependenciesErrors.length),
  				warnings: module.errors && module.dependenciesErrors && (module.warnings.length + module.dependenciesWarnings.length)
  			};
  			if(showReasons) {
  				obj.reasons = module.reasons.filter(reason => reason.dependency && reason.module).map(reason => {
  					const obj = {
  						moduleId: reason.module.id,
  						moduleIdentifier: reason.module.identifier(),
  						module: reason.module.readableIdentifier(requestShortener),
  						moduleName: reason.module.readableIdentifier(requestShortener),
  						type: reason.dependency.type,
  						userRequest: reason.dependency.userRequest
  					};
  					const dep = reason.dependency;
  					if(dep.templateModules) obj.templateModules = dep.templateModules.map(module => module.id);
  					const locInfo = formatLocation(dep.loc);
  					if(locInfo) obj.loc = locInfo;
  					return obj;
  				}).sort((a, b) => a.moduleId - b.moduleId);
  			}
  			if(showUsedExports) {
  				obj.usedExports = module.used ? module.usedExports : false;
  			}
  			if(showProvidedExports) {
  				obj.providedExports = Array.isArray(module.providedExports) ? module.providedExports : null;
  			}
  			if(showDepth) {
  				obj.depth = module.depth;
  			}
  			if(showSource && module._source) {
  				obj.source = module._source.source();
  			}
  			return obj;
  		}
  		if(showChunks) {
  			obj.chunks = compilation.chunks.map(chunk => {
  				const obj = {
  					id: chunk.id,
  					rendered: chunk.rendered,
  					initial: chunk.isInitial(),
  					entry: chunk.hasRuntime(),
  					recorded: chunk.recorded,
  					extraAsync: !!chunk.extraAsync,
  					size: chunk.modules.reduce((size, module) => size + module.size(), 0),
  					names: chunk.name ? [chunk.name] : [],
  					files: chunk.files.slice(),
  					hash: chunk.renderedHash,
  					parents: chunk.parents.map(c => c.id)
  				};
  				if(showChunkModules) {
  					obj.modules = chunk.modules
  						.slice()
  						.sort(sortByField("depth"))
  						.filter(createModuleFilter())
  						.map(fnModule);
  					obj.filteredModules = chunk.modules.length - obj.modules.length;
  					obj.modules.sort(sortByField(sortModules));
  				}
  				if(showChunkOrigins) {
  					obj.origins = chunk.origins.map(origin => ({
  						moduleId: origin.module ? origin.module.id : undefined,
  						module: origin.module ? origin.module.identifier() : "",
  						moduleIdentifier: origin.module ? origin.module.identifier() : "",
  						moduleName: origin.module ? origin.module.readableIdentifier(requestShortener) : "",
  						loc: formatLocation(origin.loc),
  						name: origin.name,
  						reasons: origin.reasons || []
  					}));
  				}
  				return obj;
  			});
  			obj.chunks.sort(sortByField(sortChunks));
  		}
  		if(showModules) {
  			obj.modules = compilation.modules
  				.slice()
  				.sort(sortByField("depth"))
  				.filter(createModuleFilter())
  				.map(fnModule);
  			obj.filteredModules = compilation.modules.length - obj.modules.length;
  			obj.modules.sort(sortByField(sortModules));
  		}
  		if(showChildren) {
  			obj.children = compilation.children.map((child, idx) => {
  				const childOptions = Stats.getChildOptions(options, idx);
  				const obj = new Stats(child).toJson(childOptions, forToString);
  				delete obj.hash;
  				delete obj.version;
  				obj.name = child.name;
  				return obj;
  			});
  		}
  
  		return obj;
  	}
  
  	toString(options) {
  		if(typeof options === "boolean" || typeof options === "string") {
  			options = Stats.presetToOptions(options);
  		} else if(!options) {
  			options = {};
  		}
  
  		const useColors = d(options.colors, false);
  
  		const obj = this.toJson(options, true);
  
  		return Stats.jsonToString(obj, useColors);
  	}
  
  	static jsonToString(obj, useColors) {
  		const buf = [];
  
  		const defaultColors = {
  			bold: "\u001b[1m",
  			yellow: "\u001b[1m\u001b[33m",
  			red: "\u001b[1m\u001b[31m",
  			green: "\u001b[1m\u001b[32m",
  			cyan: "\u001b[1m\u001b[36m",
  			magenta: "\u001b[1m\u001b[35m"
  		};
  
  		const colors = Object.keys(defaultColors).reduce((obj, color) => {
  			obj[color] = str => {
  				if(useColors) {
  					buf.push(
  						(useColors === true || useColors[color] === undefined) ?
  						defaultColors[color] : useColors[color]
  					);
  				}
  				buf.push(str);
  				if(useColors) {
  					buf.push("\u001b[39m\u001b[22m");
  				}
  			};
  			return obj;
  		}, {
  			normal: (str) => buf.push(str)
  		});
  
  		const coloredTime = (time) => {
  			let times = [800, 400, 200, 100];
  			if(obj.time) {
  				times = [obj.time / 2, obj.time / 4, obj.time / 8, obj.time / 16];
  			}
  			if(time < times[3])
  				colors.normal(`${time}ms`);
  			else if(time < times[2])
  				colors.bold(`${time}ms`);
  			else if(time < times[1])
  				colors.green(`${time}ms`);
  			else if(time < times[0])
  				colors.yellow(`${time}ms`);
  			else
  				colors.red(`${time}ms`);
  		};
  
  		const newline = () => buf.push("\n");
  
  		const getText = (arr, row, col) => {
  			return arr[row][col].value;
  		};
  
  		const table = (array, align, splitter) => {
  			let row;
  			const rows = array.length;
  			let col;
  			const cols = array[0].length;
  			const colSizes = new Array(cols);
  			let value;
  			for(col = 0; col < cols; col++)
  				colSizes[col] = 0;
  			for(row = 0; row < rows; row++) {
  				for(col = 0; col < cols; col++) {
  					value = `${getText(array, row, col)}`;
  					if(value.length > colSizes[col]) {
  						colSizes[col] = value.length;
  					}
  				}
  			}
  			for(row = 0; row < rows; row++) {
  				for(col = 0; col < cols; col++) {
  					const format = array[row][col].color;
  					value = `${getText(array, row, col)}`;
  					let l = value.length;
  					if(align[col] === "l")
  						format(value);
  					for(; l < colSizes[col] && col !== cols - 1; l++)
  						colors.normal(" ");
  					if(align[col] === "r")
  						format(value);
  					if(col + 1 < cols && colSizes[col] !== 0)
  						colors.normal(splitter || "  ");
  				}
  				newline();
  			}
  		};
  
  		const getAssetColor = (asset, defaultColor) => {
  			if(asset.isOverSizeLimit) {
  				return colors.yellow;
  			}
  
  			return defaultColor;
  		};
  
  		if(obj.hash) {
  			colors.normal("Hash: ");
  			colors.bold(obj.hash);
  			newline();
  		}
  		if(obj.version) {
  			colors.normal("Version: webpack ");
  			colors.bold(obj.version);
  			newline();
  		}
  		if(typeof obj.time === "number") {
  			colors.normal("Time: ");
  			colors.bold(obj.time);
  			colors.normal("ms");
  			newline();
  		}
  		if(obj.publicPath) {
  			colors.normal("PublicPath: ");
  			colors.bold(obj.publicPath);
  			newline();
  		}
  
  		if(obj.assets && obj.assets.length > 0) {
  			const t = [
  				[{
  					value: "Asset",
  					color: colors.bold
  				}, {
  					value: "Size",
  					color: colors.bold
  				}, {
  					value: "Chunks",
  					color: colors.bold
  				}, {
  					value: "",
  					color: colors.bold
  				}, {
  					value: "",
  					color: colors.bold
  				}, {
  					value: "Chunk Names",
  					color: colors.bold
  				}]
  			];
  			obj.assets.forEach(asset => {
  				t.push([{
  					value: asset.name,
  					color: getAssetColor(asset, colors.green)
  				}, {
  					value: SizeFormatHelpers.formatSize(asset.size),
  					color: getAssetColor(asset, colors.normal)
  				}, {
  					value: asset.chunks.join(", "),
  					color: colors.bold
  				}, {
  					value: asset.emitted ? "[emitted]" : "",
  					color: colors.green
  				}, {
  					value: asset.isOverSizeLimit ? "[big]" : "",
  					color: getAssetColor(asset, colors.normal)
  				}, {
  					value: asset.chunkNames.join(", "),
  					color: colors.normal
  				}]);
  			});
  			table(t, "rrrlll");
  		}
  		if(obj.entrypoints) {
  			Object.keys(obj.entrypoints).forEach(name => {
  				const ep = obj.entrypoints[name];
  				colors.normal("Entrypoint ");
  				colors.bold(name);
  				if(ep.isOverSizeLimit) {
  					colors.normal(" ");
  					colors.yellow("[big]");
  				}
  				colors.normal(" =");
  				ep.assets.forEach(asset => {
  					colors.normal(" ");
  					colors.green(asset);
  				});
  				newline();
  			});
  		}
  		const modulesByIdentifier = {};
  		if(obj.modules) {
  			obj.modules.forEach(module => {
  				modulesByIdentifier[`$${module.identifier}`] = module;
  			});
  		} else if(obj.chunks) {
  			obj.chunks.forEach(chunk => {
  				if(chunk.modules) {
  					chunk.modules.forEach(module => {
  						modulesByIdentifier[`$${module.identifier}`] = module;
  					});
  				}
  			});
  		}
  
  		const processModuleAttributes = (module) => {
  			colors.normal(" ");
  			colors.normal(SizeFormatHelpers.formatSize(module.size));
  			if(module.chunks) {
  				module.chunks.forEach(chunk => {
  					colors.normal(" {");
  					colors.yellow(chunk);
  					colors.normal("}");
  				});
  			}
  			if(typeof module.depth === "number") {
  				colors.normal(` [depth ${module.depth}]`);
  			}
  			if(!module.cacheable) {
  				colors.red(" [not cacheable]");
  			}
  			if(module.optional) {
  				colors.yellow(" [optional]");
  			}
  			if(module.built) {
  				colors.green(" [built]");
  			}
  			if(module.prefetched) {
  				colors.magenta(" [prefetched]");
  			}
  			if(module.failed)
  				colors.red(" [failed]");
  			if(module.warnings)
  				colors.yellow(` [${module.warnings} warning${module.warnings === 1 ? "" : "s"}]`);
  			if(module.errors)
  				colors.red(` [${module.errors} error${module.errors === 1 ? "" : "s"}]`);
  		};
  
  		const processModuleContent = (module, prefix) => {
  			if(Array.isArray(module.providedExports)) {
  				colors.normal(prefix);
  				colors.cyan(`[exports: ${module.providedExports.join(", ")}]`);
  				newline();
  			}
  			if(module.usedExports !== undefined) {
  				if(module.usedExports !== true) {
  					colors.normal(prefix);
  					if(module.usedExports === false)
  						colors.cyan("[no exports used]");
  					else
  						colors.cyan(`[only some exports used: ${module.usedExports.join(", ")}]`);
  					newline();
  				}
  			}
  			if(module.reasons) {
  				module.reasons.forEach(reason => {
  					colors.normal(prefix);
  					colors.normal(reason.type);
  					colors.normal(" ");
  					colors.cyan(reason.userRequest);
  					if(reason.templateModules) colors.cyan(reason.templateModules.join(" "));
  					colors.normal(" [");
  					colors.normal(reason.moduleId);
  					colors.normal("] ");
  					colors.magenta(reason.module);
  					if(reason.loc) {
  						colors.normal(" ");
  						colors.normal(reason.loc);
  					}
  					newline();
  				});
  			}
  			if(module.profile) {
  				colors.normal(prefix);
  				let sum = 0;
  				const path = [];
  				let current = module;
  				while(current.issuer) {
  					path.unshift(current = current.issuer);
  				}
  				path.forEach(module => {
  					colors.normal("[");
  					colors.normal(module.id);
  					colors.normal("] ");
  					if(module.profile) {
  						const time = (module.profile.factory || 0) + (module.profile.building || 0);
  						coloredTime(time);
  						sum += time;
  						colors.normal(" ");
  					}
  					colors.normal("->");
  				});
  				Object.keys(module.profile).forEach(key => {
  					colors.normal(` ${key}:`);
  					const time = module.profile[key];
  					coloredTime(time);
  					sum += time;
  				});
  				colors.normal(" = ");
  				coloredTime(sum);
  				newline();
  			}
  		};
  
  		if(obj.chunks) {
  			obj.chunks.forEach(chunk => {
  				colors.normal("chunk ");
  				if(chunk.id < 1000) colors.normal(" ");
  				if(chunk.id < 100) colors.normal(" ");
  				if(chunk.id < 10) colors.normal(" ");
  				colors.normal("{");
  				colors.yellow(chunk.id);
  				colors.normal("} ");
  				colors.green(chunk.files.join(", "));
  				if(chunk.names && chunk.names.length > 0) {
  					colors.normal(" (");
  					colors.normal(chunk.names.join(", "));
  					colors.normal(")");
  				}
  				colors.normal(" ");
  				colors.normal(SizeFormatHelpers.formatSize(chunk.size));
  				chunk.parents.forEach(id => {
  					colors.normal(" {");
  					colors.yellow(id);
  					colors.normal("}");
  				});
  				if(chunk.entry) {
  					colors.yellow(" [entry]");
  				} else if(chunk.initial) {
  					colors.yellow(" [initial]");
  				}
  				if(chunk.rendered) {
  					colors.green(" [rendered]");
  				}
  				if(chunk.recorded) {
  					colors.green(" [recorded]");
  				}
  				newline();
  				if(chunk.origins) {
  					chunk.origins.forEach(origin => {
  						colors.normal("    > ");
  						if(origin.reasons && origin.reasons.length) {
  							colors.yellow(origin.reasons.join(" "));
  							colors.normal(" ");
  						}
  						if(origin.name) {
  							colors.normal(origin.name);
  							colors.normal(" ");
  						}
  						if(origin.module) {
  							colors.normal("[");
  							colors.normal(origin.moduleId);
  							colors.normal("] ");
  							const module = modulesByIdentifier[`$${origin.module}`];
  							if(module) {
  								colors.bold(module.name);
  								colors.normal(" ");
  							}
  							if(origin.loc) {
  								colors.normal(origin.loc);
  							}
  						}
  						newline();
  					});
  				}
  				if(chunk.modules) {
  					chunk.modules.forEach(module => {
  						colors.normal(" ");
  						if(module.id < 1000) colors.normal(" ");
  						if(module.id < 100) colors.normal(" ");
  						if(module.id < 10) colors.normal(" ");
  						colors.normal("[");
  						colors.normal(module.id);
  						colors.normal("] ");
  						colors.bold(module.name);
  						processModuleAttributes(module);
  						newline();
  						processModuleContent(module, "        ");
  					});
  					if(chunk.filteredModules > 0) {
  						colors.normal(`     + ${chunk.filteredModules} hidden modules`);
  						newline();
  					}
  				}
  			});
  		}
  		if(obj.modules) {
  			obj.modules.forEach(module => {
  				if(module.id < 1000) colors.normal(" ");
  				if(module.id < 100) colors.normal(" ");
  				if(module.id < 10) colors.normal(" ");
  				colors.normal("[");
  				colors.normal(module.id);
  				colors.normal("] ");
  				colors.bold(module.name || module.identifier);
  				processModuleAttributes(module);
  				newline();
  				processModuleContent(module, "       ");
  			});
  			if(obj.filteredModules > 0) {
  				colors.normal(`    + ${obj.filteredModules} hidden modules`);
  				newline();
  			}
  		}
  		if(obj._showWarnings && obj.warnings) {
  			obj.warnings.forEach(warning => {
  				newline();
  				colors.yellow(`WARNING in ${warning}`);
  				newline();
  			});
  		}
  		if(obj._showErrors && obj.errors) {
  			obj.errors.forEach(error => {
  				newline();
  				colors.red(`ERROR in ${error}`);
  				newline();
  			});
  		}
  		if(obj.children) {
  			obj.children.forEach(child => {
  				let childString = Stats.jsonToString(child, useColors);
  				if(childString) {
  					if(child.name) {
  						colors.normal("Child ");
  						colors.bold(child.name);
  						colors.normal(":");
  					} else {
  						colors.normal("Child");
  					}
  					newline();
  					buf.push("    ");
  					buf.push(childString.replace(/\n/g, "\n    "));
  					newline();
  				}
  			});
  		}
  		if(obj.needAdditionalPass) {
  			colors.yellow("Compilation needs an additional pass and will compile again.");
  		}
  
  		while(buf[buf.length - 1] === "\n") buf.pop();
  		return buf.join("");
  	}
  
  	static presetToOptions(name) {
  		//Accepted values: none, errors-only, minimal, normal, verbose
  		//Any other falsy value will behave as 'none', truthy values as 'normal'
  		const pn = (typeof name === "string") && name.toLowerCase() || name;
  		if(pn === "none" || !pn) {
  			return {
  				hash: false,
  				version: false,
  				timings: false,
  				assets: false,
  				entrypoints: false,
  				chunks: false,
  				chunkModules: false,
  				modules: false,
  				reasons: false,
  				depth: false,
  				usedExports: false,
  				providedExports: false,
  				children: false,
  				source: false,
  				errors: false,
  				errorDetails: false,
  				warnings: false,
  				publicPath: false,
  				performance: false
  			};
  		} else {
  			return {
  				hash: pn !== "errors-only" && pn !== "minimal",
  				version: pn === "verbose",
  				timings: pn !== "errors-only" && pn !== "minimal",
  				assets: pn === "verbose",
  				entrypoints: pn === "verbose",
  				chunks: pn !== "errors-only",
  				chunkModules: pn === "verbose",
  				//warnings: pn !== "errors-only",
  				errorDetails: pn !== "errors-only" && pn !== "minimal",
  				reasons: pn === "verbose",
  				depth: pn === "verbose",
  				usedExports: pn === "verbose",
  				providedExports: pn === "verbose",
  				colors: true,
  				performance: true
  			};
  		}
  
  	}
  
  	static getChildOptions(options, idx) {
  		let innerOptions;
  		if(Array.isArray(options.children)) {
  			if(idx < options.children.length)
  				innerOptions = options.children[idx];
  		} else if(typeof options.children === "object" && options.children) {
  			innerOptions = options.children;
  		}
  		if(typeof innerOptions === "boolean" || typeof innerOptions === "string")
  			innerOptions = Stats.presetToOptions(innerOptions);
  		if(!innerOptions)
  			return options;
  		let childOptions = Object.assign({}, options);
  		delete childOptions.children; // do not inherit children
  		childOptions = Object.assign(childOptions, innerOptions);
  		return childOptions;
  	}
  }
  
  module.exports = Stats;
  