mirror of
https://github.com/nodejs/node.git
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aab0d202f8
Use a prototype-less object for inspect.styles and inspect.colors to allow modification of Object.prototype in the REPL. Fixes: https://github.com/nodejs/node/issues/11614 PR-URL: https://github.com/nodejs/node/pull/11624 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Timothy Gu <timothygu99@gmail.com>
1024 lines
29 KiB
JavaScript
1024 lines
29 KiB
JavaScript
'use strict';
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const uv = process.binding('uv');
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const Buffer = require('buffer').Buffer;
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const internalUtil = require('internal/util');
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const binding = process.binding('util');
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const isError = internalUtil.isError;
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const inspectDefaultOptions = Object.seal({
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showHidden: false,
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depth: 2,
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colors: false,
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customInspect: true,
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showProxy: false,
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maxArrayLength: 100,
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breakLength: 60
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});
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var Debug;
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function tryStringify(arg) {
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try {
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return JSON.stringify(arg);
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} catch (_) {
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return '[Circular]';
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}
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}
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exports.format = function(f) {
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if (typeof f !== 'string') {
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const objects = new Array(arguments.length);
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for (var index = 0; index < arguments.length; index++) {
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objects[index] = inspect(arguments[index]);
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}
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return objects.join(' ');
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}
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var argLen = arguments.length;
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if (argLen === 1) return f;
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var str = '';
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var a = 1;
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var lastPos = 0;
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for (var i = 0; i < f.length;) {
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if (f.charCodeAt(i) === 37/*'%'*/ && i + 1 < f.length) {
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switch (f.charCodeAt(i + 1)) {
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case 100: // 'd'
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if (a >= argLen)
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break;
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if (lastPos < i)
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str += f.slice(lastPos, i);
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str += Number(arguments[a++]);
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lastPos = i = i + 2;
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continue;
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case 106: // 'j'
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if (a >= argLen)
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break;
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if (lastPos < i)
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str += f.slice(lastPos, i);
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str += tryStringify(arguments[a++]);
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lastPos = i = i + 2;
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continue;
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case 115: // 's'
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if (a >= argLen)
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break;
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if (lastPos < i)
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str += f.slice(lastPos, i);
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str += String(arguments[a++]);
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lastPos = i = i + 2;
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continue;
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case 37: // '%'
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if (lastPos < i)
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str += f.slice(lastPos, i);
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str += '%';
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lastPos = i = i + 2;
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continue;
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}
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}
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++i;
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}
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if (lastPos === 0)
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str = f;
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else if (lastPos < f.length)
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str += f.slice(lastPos);
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while (a < argLen) {
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const x = arguments[a++];
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if (x === null || (typeof x !== 'object' && typeof x !== 'symbol')) {
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str += ' ' + x;
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} else {
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str += ' ' + inspect(x);
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}
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}
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return str;
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};
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exports.deprecate = internalUtil.deprecate;
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var debugs = {};
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var debugEnviron;
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exports.debuglog = function(set) {
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if (debugEnviron === undefined)
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debugEnviron = process.env.NODE_DEBUG || '';
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set = set.toUpperCase();
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if (!debugs[set]) {
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if (new RegExp(`\\b${set}\\b`, 'i').test(debugEnviron)) {
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var pid = process.pid;
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debugs[set] = function() {
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var msg = exports.format.apply(exports, arguments);
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console.error('%s %d: %s', set, pid, msg);
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};
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} else {
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debugs[set] = function() {};
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}
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}
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return debugs[set];
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};
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/**
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* Echos the value of a value. Tries to print the value out
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* in the best way possible given the different types.
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*
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* @param {Object} obj The object to print out.
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* @param {Object} opts Optional options object that alters the output.
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*/
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/* legacy: obj, showHidden, depth, colors*/
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function inspect(obj, opts) {
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// default options
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var ctx = {
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seen: [],
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stylize: stylizeNoColor
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};
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// legacy...
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if (arguments.length >= 3 && arguments[2] !== undefined) {
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ctx.depth = arguments[2];
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}
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if (arguments.length >= 4 && arguments[3] !== undefined) {
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ctx.colors = arguments[3];
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}
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if (typeof opts === 'boolean') {
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// legacy...
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ctx.showHidden = opts;
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}
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// Set default and user-specified options
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ctx = Object.assign({}, inspect.defaultOptions, ctx, opts);
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if (ctx.colors) ctx.stylize = stylizeWithColor;
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if (ctx.maxArrayLength === null) ctx.maxArrayLength = Infinity;
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return formatValue(ctx, obj, ctx.depth);
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}
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Object.defineProperty(inspect, 'defaultOptions', {
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get: function() {
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return inspectDefaultOptions;
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},
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set: function(options) {
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if (options === null || typeof options !== 'object') {
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throw new TypeError('"options" must be an object');
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}
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Object.assign(inspectDefaultOptions, options);
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return inspectDefaultOptions;
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}
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});
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// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
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inspect.colors = Object.assign(Object.create(null), {
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'bold': [1, 22],
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'italic': [3, 23],
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'underline': [4, 24],
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'inverse': [7, 27],
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'white': [37, 39],
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'grey': [90, 39],
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'black': [30, 39],
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'blue': [34, 39],
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'cyan': [36, 39],
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'green': [32, 39],
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'magenta': [35, 39],
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'red': [31, 39],
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'yellow': [33, 39]
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});
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// Don't use 'blue' not visible on cmd.exe
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inspect.styles = Object.assign(Object.create(null), {
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'special': 'cyan',
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'number': 'yellow',
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'boolean': 'yellow',
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'undefined': 'grey',
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'null': 'bold',
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'string': 'green',
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'symbol': 'green',
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'date': 'magenta',
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// "name": intentionally not styling
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'regexp': 'red'
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});
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const customInspectSymbol = internalUtil.customInspectSymbol;
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exports.inspect = inspect;
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exports.inspect.custom = customInspectSymbol;
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function stylizeWithColor(str, styleType) {
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var style = inspect.styles[styleType];
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if (style) {
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return `\u001b[${inspect.colors[style][0]}m${str}` +
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`\u001b[${inspect.colors[style][1]}m`;
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} else {
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return str;
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}
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}
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function stylizeNoColor(str, styleType) {
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return str;
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}
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function arrayToHash(array) {
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var hash = Object.create(null);
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for (var i = 0; i < array.length; i++) {
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var val = array[i];
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hash[val] = true;
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}
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return hash;
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}
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function getConstructorOf(obj) {
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while (obj) {
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var descriptor = Object.getOwnPropertyDescriptor(obj, 'constructor');
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if (descriptor !== undefined &&
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typeof descriptor.value === 'function' &&
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descriptor.value.name !== '') {
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return descriptor.value;
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}
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obj = Object.getPrototypeOf(obj);
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}
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return null;
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}
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function ensureDebugIsInitialized() {
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if (Debug === undefined) {
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const runInDebugContext = require('vm').runInDebugContext;
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Debug = runInDebugContext('Debug');
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}
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}
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function inspectPromise(p) {
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// Only create a mirror if the object is a Promise.
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if (!binding.isPromise(p))
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return null;
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ensureDebugIsInitialized();
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const mirror = Debug.MakeMirror(p, true);
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return {status: mirror.status(), value: mirror.promiseValue().value_};
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}
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function formatValue(ctx, value, recurseTimes) {
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if (ctx.showProxy &&
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((typeof value === 'object' && value !== null) ||
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typeof value === 'function')) {
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var proxy = undefined;
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var proxyCache = ctx.proxyCache;
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if (!proxyCache)
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proxyCache = ctx.proxyCache = new Map();
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// Determine if we've already seen this object and have
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// determined that it either is or is not a proxy.
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if (proxyCache.has(value)) {
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// We've seen it, if the value is not undefined, it's a Proxy.
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proxy = proxyCache.get(value);
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} else {
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// Haven't seen it. Need to check.
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// If it's not a Proxy, this will return undefined.
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// Otherwise, it'll return an array. The first item
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// is the target, the second item is the handler.
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// We ignore (and do not return) the Proxy isRevoked property.
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proxy = binding.getProxyDetails(value);
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if (proxy) {
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// We know for a fact that this isn't a Proxy.
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// Mark it as having already been evaluated.
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// We do this because this object is passed
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// recursively to formatValue below in order
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// for it to get proper formatting, and because
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// the target and handle objects also might be
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// proxies... it's unfortunate but necessary.
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proxyCache.set(proxy, undefined);
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}
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// If the object is not a Proxy, then this stores undefined.
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// This tells the code above that we've already checked and
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// ruled it out. If the object is a proxy, this caches the
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// results of the getProxyDetails call.
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proxyCache.set(value, proxy);
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}
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if (proxy) {
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return 'Proxy ' + formatValue(ctx, proxy, recurseTimes);
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}
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}
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// Provide a hook for user-specified inspect functions.
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// Check that value is an object with an inspect function on it
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if (ctx.customInspect && value) {
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const maybeCustomInspect = value[customInspectSymbol] || value.inspect;
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if (typeof maybeCustomInspect === 'function' &&
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// Filter out the util module, its inspect function is special
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maybeCustomInspect !== exports.inspect &&
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// Also filter out any prototype objects using the circular check.
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!(value.constructor && value.constructor.prototype === value)) {
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let ret = maybeCustomInspect.call(value, recurseTimes, ctx);
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// If the custom inspection method returned `this`, don't go into
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// infinite recursion.
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if (ret !== value) {
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if (typeof ret !== 'string') {
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ret = formatValue(ctx, ret, recurseTimes);
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}
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return ret;
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}
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}
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}
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// Primitive types cannot have properties
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var primitive = formatPrimitive(ctx, value);
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if (primitive) {
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return primitive;
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}
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// Look up the keys of the object.
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var keys = Object.keys(value);
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var visibleKeys = arrayToHash(keys);
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if (ctx.showHidden) {
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keys = Object.getOwnPropertyNames(value);
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keys = keys.concat(Object.getOwnPropertySymbols(value));
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}
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// This could be a boxed primitive (new String(), etc.), check valueOf()
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// NOTE: Avoid calling `valueOf` on `Date` instance because it will return
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// a number which, when object has some additional user-stored `keys`,
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// will be printed out.
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var formatted;
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var raw = value;
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try {
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// the .valueOf() call can fail for a multitude of reasons
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if (!isDate(value))
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raw = value.valueOf();
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} catch (e) {
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// ignore...
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}
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if (typeof raw === 'string') {
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// for boxed Strings, we have to remove the 0-n indexed entries,
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// since they just noisy up the output and are redundant
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keys = keys.filter(function(key) {
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if (typeof key === 'symbol') {
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return true;
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}
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return !(key >= 0 && key < raw.length);
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});
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}
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var constructor = getConstructorOf(value);
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// Some type of object without properties can be shortcutted.
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if (keys.length === 0) {
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if (typeof value === 'function') {
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const ctorName = constructor ? constructor.name : 'Function';
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return ctx.stylize(
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`[${ctorName}${value.name ? `: ${value.name}` : ''}]`, 'special');
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}
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if (isRegExp(value)) {
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return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
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}
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if (isDate(value)) {
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if (Number.isNaN(value.getTime())) {
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return ctx.stylize(value.toString(), 'date');
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} else {
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return ctx.stylize(Date.prototype.toISOString.call(value), 'date');
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}
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}
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if (isError(value)) {
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return formatError(value);
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}
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// now check the `raw` value to handle boxed primitives
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if (typeof raw === 'string') {
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formatted = formatPrimitiveNoColor(ctx, raw);
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return ctx.stylize(`[String: ${formatted}]`, 'string');
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}
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if (typeof raw === 'symbol') {
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formatted = formatPrimitiveNoColor(ctx, raw);
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return ctx.stylize(`[Symbol: ${formatted}]`, 'symbol');
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}
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if (typeof raw === 'number') {
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formatted = formatPrimitiveNoColor(ctx, raw);
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return ctx.stylize(`[Number: ${formatted}]`, 'number');
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}
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if (typeof raw === 'boolean') {
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formatted = formatPrimitiveNoColor(ctx, raw);
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return ctx.stylize(`[Boolean: ${formatted}]`, 'boolean');
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}
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// Fast path for ArrayBuffer and SharedArrayBuffer.
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// Can't do the same for DataView because it has a non-primitive
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// .buffer property that we need to recurse for.
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if (binding.isArrayBuffer(value) || binding.isSharedArrayBuffer(value)) {
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return `${constructor.name}` +
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` { byteLength: ${formatNumber(ctx, value.byteLength)} }`;
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}
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}
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var base = '';
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var empty = false;
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var formatter = formatObject;
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var braces;
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// We can't compare constructors for various objects using a comparison like
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// `constructor === Array` because the object could have come from a different
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// context and thus the constructor won't match. Instead we check the
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// constructor names (including those up the prototype chain where needed) to
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// determine object types.
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if (Array.isArray(value)) {
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// Unset the constructor to prevent "Array [...]" for ordinary arrays.
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if (constructor && constructor.name === 'Array')
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constructor = null;
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braces = ['[', ']'];
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empty = value.length === 0;
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formatter = formatArray;
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} else if (binding.isSet(value)) {
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braces = ['{', '}'];
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// With `showHidden`, `length` will display as a hidden property for
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// arrays. For consistency's sake, do the same for `size`, even though this
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// property isn't selected by Object.getOwnPropertyNames().
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if (ctx.showHidden)
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keys.unshift('size');
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empty = value.size === 0;
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formatter = formatSet;
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} else if (binding.isMap(value)) {
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braces = ['{', '}'];
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// Ditto.
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if (ctx.showHidden)
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keys.unshift('size');
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empty = value.size === 0;
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formatter = formatMap;
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} else if (binding.isArrayBuffer(value) ||
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binding.isSharedArrayBuffer(value)) {
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braces = ['{', '}'];
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keys.unshift('byteLength');
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visibleKeys.byteLength = true;
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} else if (binding.isDataView(value)) {
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braces = ['{', '}'];
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// .buffer goes last, it's not a primitive like the others.
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keys.unshift('byteLength', 'byteOffset', 'buffer');
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visibleKeys.byteLength = true;
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visibleKeys.byteOffset = true;
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visibleKeys.buffer = true;
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} else if (binding.isTypedArray(value)) {
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braces = ['[', ']'];
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formatter = formatTypedArray;
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if (ctx.showHidden) {
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// .buffer goes last, it's not a primitive like the others.
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keys.unshift('BYTES_PER_ELEMENT',
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'length',
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'byteLength',
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'byteOffset',
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'buffer');
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}
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} else {
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var promiseInternals = inspectPromise(value);
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if (promiseInternals) {
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braces = ['{', '}'];
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formatter = formatPromise;
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} else {
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if (binding.isMapIterator(value)) {
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constructor = { name: 'MapIterator' };
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braces = ['{', '}'];
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empty = false;
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formatter = formatCollectionIterator;
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} else if (binding.isSetIterator(value)) {
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constructor = { name: 'SetIterator' };
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braces = ['{', '}'];
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empty = false;
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formatter = formatCollectionIterator;
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} else {
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// Unset the constructor to prevent "Object {...}" for ordinary objects.
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if (constructor && constructor.name === 'Object')
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constructor = null;
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braces = ['{', '}'];
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empty = true; // No other data than keys.
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}
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}
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}
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empty = empty === true && keys.length === 0;
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// Make functions say that they are functions
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if (typeof value === 'function') {
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const ctorName = constructor ? constructor.name : 'Function';
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base = ` [${ctorName}${value.name ? `: ${value.name}` : ''}]`;
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}
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// Make RegExps say that they are RegExps
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if (isRegExp(value)) {
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base = ' ' + RegExp.prototype.toString.call(value);
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}
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// Make dates with properties first say the date
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if (isDate(value)) {
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base = ' ' + Date.prototype.toISOString.call(value);
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}
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// Make error with message first say the error
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if (isError(value)) {
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base = ' ' + formatError(value);
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}
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// Make boxed primitive Strings look like such
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if (typeof raw === 'string') {
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formatted = formatPrimitiveNoColor(ctx, raw);
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base = ` [String: ${formatted}]`;
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}
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|
|
// Make boxed primitive Numbers look like such
|
|
if (typeof raw === 'number') {
|
|
formatted = formatPrimitiveNoColor(ctx, raw);
|
|
base = ` [Number: ${formatted}]`;
|
|
}
|
|
|
|
// Make boxed primitive Booleans look like such
|
|
if (typeof raw === 'boolean') {
|
|
formatted = formatPrimitiveNoColor(ctx, raw);
|
|
base = ` [Boolean: ${formatted}]`;
|
|
}
|
|
|
|
// Add constructor name if available
|
|
if (base === '' && constructor)
|
|
braces[0] = `${constructor.name} ${braces[0]}`;
|
|
|
|
if (empty === true) {
|
|
return braces[0] + base + braces[1];
|
|
}
|
|
|
|
if (recurseTimes < 0) {
|
|
if (isRegExp(value)) {
|
|
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
|
|
} else {
|
|
return ctx.stylize('[Object]', 'special');
|
|
}
|
|
}
|
|
|
|
ctx.seen.push(value);
|
|
|
|
var output = formatter(ctx, value, recurseTimes, visibleKeys, keys);
|
|
|
|
ctx.seen.pop();
|
|
|
|
return reduceToSingleString(output, base, braces, ctx.breakLength);
|
|
}
|
|
|
|
|
|
function formatNumber(ctx, value) {
|
|
// Format -0 as '-0'. Strict equality won't distinguish 0 from -0.
|
|
if (Object.is(value, -0))
|
|
return ctx.stylize('-0', 'number');
|
|
return ctx.stylize('' + value, 'number');
|
|
}
|
|
|
|
|
|
function formatPrimitive(ctx, value) {
|
|
if (value === undefined)
|
|
return ctx.stylize('undefined', 'undefined');
|
|
|
|
// For some reason typeof null is "object", so special case here.
|
|
if (value === null)
|
|
return ctx.stylize('null', 'null');
|
|
|
|
var type = typeof value;
|
|
|
|
if (type === 'string') {
|
|
var simple = '\'' +
|
|
JSON.stringify(value)
|
|
.replace(/^"|"$/g, '')
|
|
.replace(/'/g, "\\'")
|
|
.replace(/\\"/g, '"') +
|
|
'\'';
|
|
return ctx.stylize(simple, 'string');
|
|
}
|
|
if (type === 'number')
|
|
return formatNumber(ctx, value);
|
|
if (type === 'boolean')
|
|
return ctx.stylize('' + value, 'boolean');
|
|
// es6 symbol primitive
|
|
if (type === 'symbol')
|
|
return ctx.stylize(value.toString(), 'symbol');
|
|
}
|
|
|
|
|
|
function formatPrimitiveNoColor(ctx, value) {
|
|
var stylize = ctx.stylize;
|
|
ctx.stylize = stylizeNoColor;
|
|
var str = formatPrimitive(ctx, value);
|
|
ctx.stylize = stylize;
|
|
return str;
|
|
}
|
|
|
|
|
|
function formatError(value) {
|
|
return value.stack || `[${Error.prototype.toString.call(value)}]`;
|
|
}
|
|
|
|
|
|
function formatObject(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
return keys.map(function(key) {
|
|
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, false);
|
|
});
|
|
}
|
|
|
|
|
|
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
var output = [];
|
|
const maxLength = Math.min(Math.max(0, ctx.maxArrayLength), value.length);
|
|
const remaining = value.length - maxLength;
|
|
for (var i = 0; i < maxLength; ++i) {
|
|
if (hasOwnProperty(value, String(i))) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
String(i), true));
|
|
} else {
|
|
output.push('');
|
|
}
|
|
}
|
|
if (remaining > 0) {
|
|
output.push(`... ${remaining} more item${remaining > 1 ? 's' : ''}`);
|
|
}
|
|
keys.forEach(function(key) {
|
|
if (typeof key === 'symbol' || !key.match(/^\d+$/)) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
key, true));
|
|
}
|
|
});
|
|
return output;
|
|
}
|
|
|
|
|
|
function formatTypedArray(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
const maxLength = Math.min(Math.max(0, ctx.maxArrayLength), value.length);
|
|
const remaining = value.length - maxLength;
|
|
var output = new Array(maxLength);
|
|
for (var i = 0; i < maxLength; ++i)
|
|
output[i] = formatNumber(ctx, value[i]);
|
|
if (remaining > 0) {
|
|
output.push(`... ${remaining} more item${remaining > 1 ? 's' : ''}`);
|
|
}
|
|
for (const key of keys) {
|
|
if (typeof key === 'symbol' || !key.match(/^\d+$/)) {
|
|
output.push(
|
|
formatProperty(ctx, value, recurseTimes, visibleKeys, key, true));
|
|
}
|
|
}
|
|
return output;
|
|
}
|
|
|
|
|
|
function formatSet(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
var output = [];
|
|
value.forEach(function(v) {
|
|
var nextRecurseTimes = recurseTimes === null ? null : recurseTimes - 1;
|
|
var str = formatValue(ctx, v, nextRecurseTimes);
|
|
output.push(str);
|
|
});
|
|
keys.forEach(function(key) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
key, false));
|
|
});
|
|
return output;
|
|
}
|
|
|
|
|
|
function formatMap(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
var output = [];
|
|
value.forEach(function(v, k) {
|
|
var nextRecurseTimes = recurseTimes === null ? null : recurseTimes - 1;
|
|
var str = formatValue(ctx, k, nextRecurseTimes);
|
|
str += ' => ';
|
|
str += formatValue(ctx, v, nextRecurseTimes);
|
|
output.push(str);
|
|
});
|
|
keys.forEach(function(key) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
key, false));
|
|
});
|
|
return output;
|
|
}
|
|
|
|
function formatCollectionIterator(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
ensureDebugIsInitialized();
|
|
const mirror = Debug.MakeMirror(value, true);
|
|
var nextRecurseTimes = recurseTimes === null ? null : recurseTimes - 1;
|
|
var vals = mirror.preview();
|
|
var output = [];
|
|
for (const o of vals) {
|
|
output.push(formatValue(ctx, o, nextRecurseTimes));
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function formatPromise(ctx, value, recurseTimes, visibleKeys, keys) {
|
|
var output = [];
|
|
var internals = inspectPromise(value);
|
|
if (internals.status === 'pending') {
|
|
output.push('<pending>');
|
|
} else {
|
|
var nextRecurseTimes = recurseTimes === null ? null : recurseTimes - 1;
|
|
var str = formatValue(ctx, internals.value, nextRecurseTimes);
|
|
if (internals.status === 'rejected') {
|
|
output.push('<rejected> ' + str);
|
|
} else {
|
|
output.push(str);
|
|
}
|
|
}
|
|
keys.forEach(function(key) {
|
|
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
|
|
key, false));
|
|
});
|
|
return output;
|
|
}
|
|
|
|
|
|
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
|
|
var name, str, desc;
|
|
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
|
|
if (desc.get) {
|
|
if (desc.set) {
|
|
str = ctx.stylize('[Getter/Setter]', 'special');
|
|
} else {
|
|
str = ctx.stylize('[Getter]', 'special');
|
|
}
|
|
} else {
|
|
if (desc.set) {
|
|
str = ctx.stylize('[Setter]', 'special');
|
|
}
|
|
}
|
|
if (!hasOwnProperty(visibleKeys, key)) {
|
|
if (typeof key === 'symbol') {
|
|
name = `[${ctx.stylize(key.toString(), 'symbol')}]`;
|
|
} else {
|
|
name = `[${key}]`;
|
|
}
|
|
}
|
|
if (!str) {
|
|
if (ctx.seen.indexOf(desc.value) < 0) {
|
|
if (recurseTimes === null) {
|
|
str = formatValue(ctx, desc.value, null);
|
|
} else {
|
|
str = formatValue(ctx, desc.value, recurseTimes - 1);
|
|
}
|
|
if (str.indexOf('\n') > -1) {
|
|
if (array) {
|
|
str = str.replace(/\n/g, '\n ');
|
|
} else {
|
|
str = str.replace(/(^|\n)/g, '\n ');
|
|
}
|
|
}
|
|
} else {
|
|
str = ctx.stylize('[Circular]', 'special');
|
|
}
|
|
}
|
|
if (name === undefined) {
|
|
if (array && key.match(/^\d+$/)) {
|
|
return str;
|
|
}
|
|
name = JSON.stringify('' + key);
|
|
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
|
|
name = name.substr(1, name.length - 2);
|
|
name = ctx.stylize(name, 'name');
|
|
} else {
|
|
name = name.replace(/'/g, "\\'")
|
|
.replace(/\\"/g, '"')
|
|
.replace(/(^"|"$)/g, "'")
|
|
.replace(/\\\\/g, '\\');
|
|
name = ctx.stylize(name, 'string');
|
|
}
|
|
}
|
|
|
|
return `${name}: ${str}`;
|
|
}
|
|
|
|
|
|
function reduceToSingleString(output, base, braces, breakLength) {
|
|
var length = output.reduce(function(prev, cur) {
|
|
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
|
|
}, 0);
|
|
|
|
if (length > breakLength) {
|
|
return braces[0] +
|
|
// If the opening "brace" is too large, like in the case of "Set {",
|
|
// we need to force the first item to be on the next line or the
|
|
// items will not line up correctly.
|
|
(base === '' && braces[0].length === 1 ? '' : base + '\n ') +
|
|
` ${output.join(',\n ')} ${braces[1]}`;
|
|
}
|
|
|
|
return `${braces[0]}${base} ${output.join(', ')} ${braces[1]}`;
|
|
}
|
|
|
|
|
|
// NOTE: These type checking functions intentionally don't use `instanceof`
|
|
// because it is fragile and can be easily faked with `Object.create()`.
|
|
exports.isArray = Array.isArray;
|
|
|
|
function isBoolean(arg) {
|
|
return typeof arg === 'boolean';
|
|
}
|
|
exports.isBoolean = isBoolean;
|
|
|
|
function isNull(arg) {
|
|
return arg === null;
|
|
}
|
|
exports.isNull = isNull;
|
|
|
|
function isNullOrUndefined(arg) {
|
|
return arg === null || arg === undefined;
|
|
}
|
|
exports.isNullOrUndefined = isNullOrUndefined;
|
|
|
|
function isNumber(arg) {
|
|
return typeof arg === 'number';
|
|
}
|
|
exports.isNumber = isNumber;
|
|
|
|
function isString(arg) {
|
|
return typeof arg === 'string';
|
|
}
|
|
exports.isString = isString;
|
|
|
|
function isSymbol(arg) {
|
|
return typeof arg === 'symbol';
|
|
}
|
|
exports.isSymbol = isSymbol;
|
|
|
|
function isUndefined(arg) {
|
|
return arg === undefined;
|
|
}
|
|
exports.isUndefined = isUndefined;
|
|
|
|
function isRegExp(re) {
|
|
return binding.isRegExp(re);
|
|
}
|
|
exports.isRegExp = isRegExp;
|
|
|
|
function isObject(arg) {
|
|
return arg !== null && typeof arg === 'object';
|
|
}
|
|
exports.isObject = isObject;
|
|
|
|
function isDate(d) {
|
|
return binding.isDate(d);
|
|
}
|
|
exports.isDate = isDate;
|
|
|
|
exports.isError = isError;
|
|
|
|
function isFunction(arg) {
|
|
return typeof arg === 'function';
|
|
}
|
|
exports.isFunction = isFunction;
|
|
|
|
function isPrimitive(arg) {
|
|
return arg === null ||
|
|
typeof arg !== 'object' && typeof arg !== 'function';
|
|
}
|
|
exports.isPrimitive = isPrimitive;
|
|
|
|
exports.isBuffer = Buffer.isBuffer;
|
|
|
|
function pad(n) {
|
|
return n < 10 ? '0' + n.toString(10) : n.toString(10);
|
|
}
|
|
|
|
|
|
const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
|
|
'Oct', 'Nov', 'Dec'];
|
|
|
|
// 26 Feb 16:19:34
|
|
function timestamp() {
|
|
var d = new Date();
|
|
var time = [pad(d.getHours()),
|
|
pad(d.getMinutes()),
|
|
pad(d.getSeconds())].join(':');
|
|
return [d.getDate(), months[d.getMonth()], time].join(' ');
|
|
}
|
|
|
|
|
|
// log is just a thin wrapper to console.log that prepends a timestamp
|
|
exports.log = function() {
|
|
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
|
|
};
|
|
|
|
|
|
/**
|
|
* Inherit the prototype methods from one constructor into another.
|
|
*
|
|
* The Function.prototype.inherits from lang.js rewritten as a standalone
|
|
* function (not on Function.prototype). NOTE: If this file is to be loaded
|
|
* during bootstrapping this function needs to be rewritten using some native
|
|
* functions as prototype setup using normal JavaScript does not work as
|
|
* expected during bootstrapping (see mirror.js in r114903).
|
|
*
|
|
* @param {function} ctor Constructor function which needs to inherit the
|
|
* prototype.
|
|
* @param {function} superCtor Constructor function to inherit prototype from.
|
|
* @throws {TypeError} Will error if either constructor is null, or if
|
|
* the super constructor lacks a prototype.
|
|
*/
|
|
exports.inherits = function(ctor, superCtor) {
|
|
|
|
if (ctor === undefined || ctor === null)
|
|
throw new TypeError('The constructor to "inherits" must not be ' +
|
|
'null or undefined');
|
|
|
|
if (superCtor === undefined || superCtor === null)
|
|
throw new TypeError('The super constructor to "inherits" must not ' +
|
|
'be null or undefined');
|
|
|
|
if (superCtor.prototype === undefined)
|
|
throw new TypeError('The super constructor to "inherits" must ' +
|
|
'have a prototype');
|
|
|
|
ctor.super_ = superCtor;
|
|
Object.setPrototypeOf(ctor.prototype, superCtor.prototype);
|
|
};
|
|
|
|
exports._extend = function(target, source) {
|
|
// Don't do anything if source isn't an object
|
|
if (source === null || typeof source !== 'object') return target;
|
|
|
|
var keys = Object.keys(source);
|
|
var i = keys.length;
|
|
while (i--) {
|
|
target[keys[i]] = source[keys[i]];
|
|
}
|
|
return target;
|
|
};
|
|
|
|
function hasOwnProperty(obj, prop) {
|
|
return Object.prototype.hasOwnProperty.call(obj, prop);
|
|
}
|
|
|
|
|
|
// Deprecated old stuff.
|
|
|
|
exports.print = internalUtil.deprecate(function() {
|
|
for (var i = 0, len = arguments.length; i < len; ++i) {
|
|
process.stdout.write(String(arguments[i]));
|
|
}
|
|
}, 'util.print is deprecated. Use console.log instead.', 'DEP0026');
|
|
|
|
|
|
exports.puts = internalUtil.deprecate(function() {
|
|
for (var i = 0, len = arguments.length; i < len; ++i) {
|
|
process.stdout.write(arguments[i] + '\n');
|
|
}
|
|
}, 'util.puts is deprecated. Use console.log instead.', 'DEP0027');
|
|
|
|
|
|
exports.debug = internalUtil.deprecate(function(x) {
|
|
process.stderr.write(`DEBUG: ${x}\n`);
|
|
}, 'util.debug is deprecated. Use console.error instead.', 'DEP0028');
|
|
|
|
|
|
exports.error = internalUtil.deprecate(function(x) {
|
|
for (var i = 0, len = arguments.length; i < len; ++i) {
|
|
process.stderr.write(arguments[i] + '\n');
|
|
}
|
|
}, 'util.error is deprecated. Use console.error instead.', 'DEP0029');
|
|
|
|
|
|
exports._errnoException = function(err, syscall, original) {
|
|
var errname = uv.errname(err);
|
|
var message = `${syscall} ${errname}`;
|
|
if (original)
|
|
message += ' ' + original;
|
|
var e = new Error(message);
|
|
e.code = errname;
|
|
e.errno = errname;
|
|
e.syscall = syscall;
|
|
return e;
|
|
};
|
|
|
|
|
|
exports._exceptionWithHostPort = function(err,
|
|
syscall,
|
|
address,
|
|
port,
|
|
additional) {
|
|
var details;
|
|
if (port && port > 0) {
|
|
details = `${address}:${port}`;
|
|
} else {
|
|
details = address;
|
|
}
|
|
|
|
if (additional) {
|
|
details += ` - Local (${additional})`;
|
|
}
|
|
var ex = exports._errnoException(err, syscall, details);
|
|
ex.address = address;
|
|
if (port) {
|
|
ex.port = port;
|
|
}
|
|
return ex;
|
|
};
|
|
|
|
// process.versions needs a custom function as some values are lazy-evaluated.
|
|
process.versions[exports.inspect.custom] =
|
|
(depth) => exports.format(JSON.parse(JSON.stringify(process.versions)));
|