970 lines
17 KiB
JavaScript
970 lines
17 KiB
JavaScript
'use strict';
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const style = require('ansi-styles'); /**
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* Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*
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*/
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const toString = Object.prototype.toString;
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const toISOString = Date.prototype.toISOString;
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const errorToString = Error.prototype.toString;
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const regExpToString = RegExp.prototype.toString;
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const symbolToString = Symbol.prototype.toString;
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const SYMBOL_REGEXP = /^Symbol\((.*)\)(.*)$/;
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const NEWLINE_REGEXP = /\n/gi;
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const getSymbols = Object.getOwnPropertySymbols || (obj => []);
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function isToStringedArrayType(toStringed) {
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return (
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toStringed === '[object Array]' ||
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toStringed === '[object ArrayBuffer]' ||
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toStringed === '[object DataView]' ||
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toStringed === '[object Float32Array]' ||
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toStringed === '[object Float64Array]' ||
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toStringed === '[object Int8Array]' ||
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toStringed === '[object Int16Array]' ||
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toStringed === '[object Int32Array]' ||
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toStringed === '[object Uint8Array]' ||
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toStringed === '[object Uint8ClampedArray]' ||
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toStringed === '[object Uint16Array]' ||
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toStringed === '[object Uint32Array]');
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}
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function printNumber(val) {
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if (val != +val) {
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return 'NaN';
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}
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const isNegativeZero = val === 0 && 1 / val < 0;
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return isNegativeZero ? '-0' : '' + val;
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}
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function printFunction(val, printFunctionName) {
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if (!printFunctionName) {
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return '[Function]';
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} else if (val.name === '') {
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return '[Function anonymous]';
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} else {
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return '[Function ' + val.name + ']';
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}
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}
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function printSymbol(val) {
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return symbolToString.call(val).replace(SYMBOL_REGEXP, 'Symbol($1)');
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}
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function printError(val) {
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return '[' + errorToString.call(val) + ']';
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}
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function printBasicValue(
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val,
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printFunctionName,
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escapeRegex)
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{
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if (val === true || val === false) {
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return '' + val;
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}
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if (val === undefined) {
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return 'undefined';
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}
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if (val === null) {
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return 'null';
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}
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const typeOf = typeof val;
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if (typeOf === 'number') {
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return printNumber(val);
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}
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if (typeOf === 'string') {
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return '"' + val.replace(/"|\\/g, '\\$&') + '"';
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}
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if (typeOf === 'function') {
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return printFunction(val, printFunctionName);
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}
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if (typeOf === 'symbol') {
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return printSymbol(val);
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}
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const toStringed = toString.call(val);
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if (toStringed === '[object WeakMap]') {
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return 'WeakMap {}';
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}
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if (toStringed === '[object WeakSet]') {
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return 'WeakSet {}';
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}
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if (
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toStringed === '[object Function]' ||
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toStringed === '[object GeneratorFunction]')
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{
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return printFunction(val, printFunctionName);
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}
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if (toStringed === '[object Symbol]') {
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return printSymbol(val);
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}
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if (toStringed === '[object Date]') {
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return toISOString.call(val);
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}
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if (toStringed === '[object Error]') {
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return printError(val);
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}
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if (toStringed === '[object RegExp]') {
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if (escapeRegex) {
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// https://github.com/benjamingr/RegExp.escape/blob/master/polyfill.js
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return regExpToString.call(val).replace(/[\\^$*+?.()|[\]{}]/g, '\\$&');
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}
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return regExpToString.call(val);
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}
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if (toStringed === '[object Arguments]' && val.length === 0) {
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return 'Arguments []';
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}
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if (isToStringedArrayType(toStringed) && val.length === 0) {
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return val.constructor.name + ' []';
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}
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if (val instanceof Error) {
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return printError(val);
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}
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return null;
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}
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function printList(
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list,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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let body = '';
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if (list.length) {
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body += edgeSpacing;
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const innerIndent = prevIndent + indent;
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for (let i = 0; i < list.length; i++) {
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body +=
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innerIndent +
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print(
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list[i],
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indent,
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innerIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors);
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if (i < list.length - 1) {
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body += ',' + spacing;
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}
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}
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body += (min ? '' : ',') + edgeSpacing + prevIndent;
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}
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return '[' + body + ']';
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}
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function printArguments(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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return (
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(min ? '' : 'Arguments ') +
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printList(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors));
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}
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function printArray(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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return (
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(min ? '' : val.constructor.name + ' ') +
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printList(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors));
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}
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function printMap(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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let result = 'Map {';
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const iterator = val.entries();
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let current = iterator.next();
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if (!current.done) {
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result += edgeSpacing;
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const innerIndent = prevIndent + indent;
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while (!current.done) {
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const key = print(
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current.value[0],
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indent,
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innerIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors);
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const value = print(
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current.value[1],
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indent,
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innerIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors);
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result += innerIndent + key + ' => ' + value;
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current = iterator.next();
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if (!current.done) {
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result += ',' + spacing;
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}
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}
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result += (min ? '' : ',') + edgeSpacing + prevIndent;
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}
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return result + '}';
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}
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function printObject(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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const constructor = min ?
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'' :
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val.constructor ? val.constructor.name + ' ' : 'Object ';
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let result = constructor + '{';
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let keys = Object.keys(val).sort();
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const symbols = getSymbols(val);
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if (symbols.length) {
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keys = keys.
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filter(
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key =>
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// $FlowFixMe string literal `symbol`. This value is not a valid `typeof` return value
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!(typeof key === 'symbol' ||
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toString.call(key) === '[object Symbol]')).
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concat(symbols);
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}
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if (keys.length) {
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result += edgeSpacing;
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const innerIndent = prevIndent + indent;
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for (let i = 0; i < keys.length; i++) {
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const key = keys[i];
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const name = print(
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key,
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indent,
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innerIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors);
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const value = print(
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val[key],
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indent,
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innerIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors);
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result += innerIndent + name + ': ' + value;
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if (i < keys.length - 1) {
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result += ',' + spacing;
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}
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}
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result += (min ? '' : ',') + edgeSpacing + prevIndent;
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}
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return result + '}';
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}
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function printSet(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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let result = 'Set {';
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const iterator = val.entries();
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let current = iterator.next();
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if (!current.done) {
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result += edgeSpacing;
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const innerIndent = prevIndent + indent;
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while (!current.done) {
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result +=
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innerIndent +
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print(
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current.value[1],
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indent,
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innerIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors);
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current = iterator.next();
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if (!current.done) {
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result += ',' + spacing;
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}
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}
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result += (min ? '' : ',') + edgeSpacing + prevIndent;
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}
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return result + '}';
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}
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function printComplexValue(
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val,
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indent,
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prevIndent,
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spacing,
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edgeSpacing,
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refs,
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maxDepth,
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currentDepth,
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plugins,
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min,
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callToJSON,
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printFunctionName,
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escapeRegex,
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colors)
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{
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refs = refs.slice();
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if (refs.indexOf(val) > -1) {
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return '[Circular]';
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} else {
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refs.push(val);
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}
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currentDepth++;
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const hitMaxDepth = currentDepth > maxDepth;
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if (
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callToJSON &&
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!hitMaxDepth &&
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val.toJSON &&
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typeof val.toJSON === 'function')
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{
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return print(
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val.toJSON(),
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indent,
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prevIndent,
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spacing,
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|
edgeSpacing,
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|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
}
|
|
|
|
const toStringed = toString.call(val);
|
|
if (toStringed === '[object Arguments]') {
|
|
return hitMaxDepth ?
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|
'[Arguments]' :
|
|
printArguments(
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|
val,
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|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
} else if (isToStringedArrayType(toStringed)) {
|
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return hitMaxDepth ?
|
|
'[Array]' :
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printArray(
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val,
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|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
} else if (toStringed === '[object Map]') {
|
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return hitMaxDepth ?
|
|
'[Map]' :
|
|
printMap(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
} else if (toStringed === '[object Set]') {
|
|
return hitMaxDepth ?
|
|
'[Set]' :
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|
printSet(
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|
val,
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|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
}
|
|
|
|
return hitMaxDepth ?
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|
'[Object]' :
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|
printObject(
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|
val,
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|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
}
|
|
|
|
function printPlugin(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors)
|
|
{
|
|
let plugin;
|
|
|
|
for (let p = 0; p < plugins.length; p++) {
|
|
if (plugins[p].test(val)) {
|
|
plugin = plugins[p];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!plugin) {
|
|
return null;
|
|
}
|
|
|
|
function boundPrint(val) {
|
|
return print(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
}
|
|
|
|
function boundIndent(str) {
|
|
const indentation = prevIndent + indent;
|
|
return indentation + str.replace(NEWLINE_REGEXP, '\n' + indentation);
|
|
}
|
|
|
|
const opts = {
|
|
edgeSpacing,
|
|
min,
|
|
spacing };
|
|
|
|
return plugin.print(val, boundPrint, boundIndent, opts, colors);
|
|
}
|
|
|
|
function print(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors)
|
|
{
|
|
const pluginsResult = printPlugin(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
if (typeof pluginsResult === 'string') {
|
|
return pluginsResult;
|
|
}
|
|
|
|
const basicResult = printBasicValue(val, printFunctionName, escapeRegex);
|
|
if (basicResult !== null) {
|
|
return basicResult;
|
|
}
|
|
|
|
return printComplexValue(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
maxDepth,
|
|
currentDepth,
|
|
plugins,
|
|
min,
|
|
callToJSON,
|
|
printFunctionName,
|
|
escapeRegex,
|
|
colors);
|
|
|
|
}
|
|
|
|
const DEFAULTS = {
|
|
callToJSON: true,
|
|
edgeSpacing: '\n',
|
|
escapeRegex: false,
|
|
highlight: false,
|
|
indent: 2,
|
|
maxDepth: Infinity,
|
|
min: false,
|
|
plugins: [],
|
|
printFunctionName: true,
|
|
spacing: '\n',
|
|
theme: {
|
|
comment: 'gray',
|
|
content: 'reset',
|
|
prop: 'yellow',
|
|
tag: 'cyan',
|
|
value: 'green' } };
|
|
|
|
|
|
|
|
function validateOptions(opts) {
|
|
Object.keys(opts).forEach(key => {
|
|
if (!DEFAULTS.hasOwnProperty(key)) {
|
|
throw new Error(`pretty-format: Unknown option "${key}".`);
|
|
}
|
|
});
|
|
|
|
if (opts.min && opts.indent !== undefined && opts.indent !== 0) {
|
|
throw new Error(
|
|
'pretty-format: Options "min" and "indent" cannot be used together.');
|
|
|
|
}
|
|
}
|
|
|
|
function normalizeOptions(opts) {
|
|
const result = {};
|
|
|
|
Object.keys(DEFAULTS).forEach(
|
|
key =>
|
|
result[key] = opts.hasOwnProperty(key) ?
|
|
key === 'theme' ? normalizeTheme(opts.theme) : opts[key] :
|
|
DEFAULTS[key]);
|
|
|
|
|
|
if (result.min) {
|
|
result.indent = 0;
|
|
}
|
|
|
|
// $FlowFixMe the type cast below means YOU are responsible to verify the code above.
|
|
return result;
|
|
}
|
|
|
|
function normalizeTheme(themeOption) {
|
|
if (!themeOption) {
|
|
throw new Error(`pretty-format: Option "theme" must not be null.`);
|
|
}
|
|
|
|
if (typeof themeOption !== 'object') {
|
|
throw new Error(
|
|
`pretty-format: Option "theme" must be of type "object" but instead received "${typeof themeOption}".`);
|
|
|
|
}
|
|
|
|
// Silently ignore any keys in `theme` that are not in defaults.
|
|
const themeRefined = themeOption;
|
|
const themeDefaults = DEFAULTS.theme;
|
|
return Object.keys(themeDefaults).reduce((theme, key) => {
|
|
theme[key] = Object.prototype.hasOwnProperty.call(themeOption, key) ?
|
|
themeRefined[key] :
|
|
themeDefaults[key];
|
|
return theme;
|
|
}, {});
|
|
}
|
|
|
|
function createIndent(indent) {
|
|
return new Array(indent + 1).join(' ');
|
|
}
|
|
|
|
function prettyFormat(val, initialOptions) {
|
|
let opts;
|
|
if (!initialOptions) {
|
|
opts = DEFAULTS;
|
|
} else {
|
|
validateOptions(initialOptions);
|
|
opts = normalizeOptions(initialOptions);
|
|
}
|
|
|
|
const colors = {
|
|
comment: { close: '', open: '' },
|
|
content: { close: '', open: '' },
|
|
prop: { close: '', open: '' },
|
|
tag: { close: '', open: '' },
|
|
value: { close: '', open: '' } };
|
|
|
|
Object.keys(opts.theme).forEach(key => {
|
|
if (opts.highlight) {
|
|
const color = colors[key] = style[opts.theme[key]];
|
|
if (
|
|
!color ||
|
|
typeof color.close !== 'string' ||
|
|
typeof color.open !== 'string')
|
|
{
|
|
throw new Error(
|
|
`pretty-format: Option "theme" has a key "${key}" whose value "${opts.theme[key]}" is undefined in ansi-styles.`);
|
|
|
|
}
|
|
}
|
|
});
|
|
|
|
let indent;
|
|
let refs;
|
|
const prevIndent = '';
|
|
const currentDepth = 0;
|
|
const spacing = opts.min ? ' ' : '\n';
|
|
const edgeSpacing = opts.min ? '' : '\n';
|
|
|
|
if (opts && opts.plugins.length) {
|
|
indent = createIndent(opts.indent);
|
|
refs = [];
|
|
const pluginsResult = printPlugin(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
opts.maxDepth,
|
|
currentDepth,
|
|
opts.plugins,
|
|
opts.min,
|
|
opts.callToJSON,
|
|
opts.printFunctionName,
|
|
opts.escapeRegex,
|
|
colors);
|
|
|
|
if (typeof pluginsResult === 'string') {
|
|
return pluginsResult;
|
|
}
|
|
}
|
|
|
|
const basicResult = printBasicValue(
|
|
val,
|
|
opts.printFunctionName,
|
|
opts.escapeRegex);
|
|
|
|
if (basicResult !== null) {
|
|
return basicResult;
|
|
}
|
|
|
|
if (!indent) {
|
|
indent = createIndent(opts.indent);
|
|
}
|
|
if (!refs) {
|
|
refs = [];
|
|
}
|
|
return printComplexValue(
|
|
val,
|
|
indent,
|
|
prevIndent,
|
|
spacing,
|
|
edgeSpacing,
|
|
refs,
|
|
opts.maxDepth,
|
|
currentDepth,
|
|
opts.plugins,
|
|
opts.min,
|
|
opts.callToJSON,
|
|
opts.printFunctionName,
|
|
opts.escapeRegex,
|
|
colors);
|
|
|
|
}
|
|
|
|
prettyFormat.plugins = {
|
|
AsymmetricMatcher: require('./plugins/AsymmetricMatcher'),
|
|
ConvertAnsi: require('./plugins/ConvertAnsi'),
|
|
HTMLElement: require('./plugins/HTMLElement'),
|
|
Immutable: require('./plugins/ImmutablePlugins'),
|
|
ReactElement: require('./plugins/ReactElement'),
|
|
ReactTestComponent: require('./plugins/ReactTestComponent') };
|
|
|
|
|
|
module.exports = prettyFormat; |