mirror of
https://github.com/denoland/deno.git
synced 2024-12-14 19:37:59 -05:00
5ea494578a
This reverts commit a3529d0232.
This change made debugging Node tests very hard - `AssertionError` is
now printed as `[Circular *1]` giving no visibility what failed.
We need to align two implementations together and remove this one then.
2237 lines
70 KiB
JavaScript
2237 lines
70 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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import * as types from "ext:deno_node/internal/util/types.ts";
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import { validateObject, validateString } from "ext:deno_node/internal/validators.mjs";
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import { codes } from "ext:deno_node/internal/error_codes.ts";
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import {
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ALL_PROPERTIES,
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getOwnNonIndexProperties,
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ONLY_ENUMERABLE,
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} from "ext:deno_node/internal_binding/util.ts";
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const kObjectType = 0;
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const kArrayType = 1;
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const kArrayExtrasType = 2;
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const kMinLineLength = 16;
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// Constants to map the iterator state.
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const kWeak = 0;
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const kIterator = 1;
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const kMapEntries = 2;
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const kPending = 0;
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const kRejected = 2;
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// Escaped control characters (plus the single quote and the backslash). Use
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// empty strings to fill up unused entries.
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// deno-fmt-ignore
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const meta = [
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'\\x00', '\\x01', '\\x02', '\\x03', '\\x04', '\\x05', '\\x06', '\\x07', // x07
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'\\b', '\\t', '\\n', '\\x0B', '\\f', '\\r', '\\x0E', '\\x0F', // x0F
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'\\x10', '\\x11', '\\x12', '\\x13', '\\x14', '\\x15', '\\x16', '\\x17', // x17
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'\\x18', '\\x19', '\\x1A', '\\x1B', '\\x1C', '\\x1D', '\\x1E', '\\x1F', // x1F
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'', '', '', '', '', '', '', "\\'", '', '', '', '', '', '', '', '', // x2F
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'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', // x3F
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'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', // x4F
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'', '', '', '', '', '', '', '', '', '', '', '', '\\\\', '', '', '', // x5F
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'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', // x6F
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'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '\\x7F', // x7F
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'\\x80', '\\x81', '\\x82', '\\x83', '\\x84', '\\x85', '\\x86', '\\x87', // x87
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'\\x88', '\\x89', '\\x8A', '\\x8B', '\\x8C', '\\x8D', '\\x8E', '\\x8F', // x8F
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'\\x90', '\\x91', '\\x92', '\\x93', '\\x94', '\\x95', '\\x96', '\\x97', // x97
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'\\x98', '\\x99', '\\x9A', '\\x9B', '\\x9C', '\\x9D', '\\x9E', '\\x9F', // x9F
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];
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// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
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const isUndetectableObject = (v) => typeof v === "undefined" && v !== undefined;
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// deno-lint-ignore no-control-regex
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const strEscapeSequencesRegExp = /[\x00-\x1f\x27\x5c\x7f-\x9f]/;
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// deno-lint-ignore no-control-regex
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const strEscapeSequencesReplacer = /[\x00-\x1f\x27\x5c\x7f-\x9f]/g;
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// deno-lint-ignore no-control-regex
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const strEscapeSequencesRegExpSingle = /[\x00-\x1f\x5c\x7f-\x9f]/;
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// deno-lint-ignore no-control-regex
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const strEscapeSequencesReplacerSingle = /[\x00-\x1f\x5c\x7f-\x9f]/g;
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const keyStrRegExp = /^[a-zA-Z_][a-zA-Z_0-9]*$/;
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const numberRegExp = /^(0|[1-9][0-9]*)$/;
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const nodeModulesRegExp = /[/\\]node_modules[/\\](.+?)(?=[/\\])/g;
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const classRegExp = /^(\s+[^(]*?)\s*{/;
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// eslint-disable-next-line node-core/no-unescaped-regexp-dot
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const stripCommentsRegExp = /(\/\/.*?\n)|(\/\*(.|\n)*?\*\/)/g;
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const inspectDefaultOptions = {
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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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maxStringLength: 10000,
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breakLength: 80,
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compact: 3,
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sorted: false,
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getters: false,
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};
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function getUserOptions(ctx, isCrossContext) {
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const ret = {
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stylize: ctx.stylize,
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showHidden: ctx.showHidden,
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depth: ctx.depth,
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colors: ctx.colors,
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customInspect: ctx.customInspect,
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showProxy: ctx.showProxy,
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maxArrayLength: ctx.maxArrayLength,
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maxStringLength: ctx.maxStringLength,
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breakLength: ctx.breakLength,
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compact: ctx.compact,
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sorted: ctx.sorted,
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getters: ctx.getters,
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...ctx.userOptions,
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};
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// Typically, the target value will be an instance of `Object`. If that is
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// *not* the case, the object may come from another vm.Context, and we want
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// to avoid passing it objects from this Context in that case, so we remove
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// the prototype from the returned object itself + the `stylize()` function,
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// and remove all other non-primitives, including non-primitive user options.
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if (isCrossContext) {
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Object.setPrototypeOf(ret, null);
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for (const key of Object.keys(ret)) {
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if (
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(typeof ret[key] === "object" || typeof ret[key] === "function") &&
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ret[key] !== null
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) {
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delete ret[key];
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}
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}
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ret.stylize = Object.setPrototypeOf((value, flavour) => {
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let stylized;
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try {
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stylized = `${ctx.stylize(value, flavour)}`;
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} catch {
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// noop
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}
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if (typeof stylized !== "string") return value;
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// `stylized` is a string as it should be, which is safe to pass along.
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return stylized;
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}, null);
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}
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return ret;
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}
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/**
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* Echos the value of any input. 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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/* Legacy: value, showHidden, depth, colors */
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export function inspect(value, opts) {
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// Default options
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const ctx = {
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budget: {},
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indentationLvl: 0,
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seen: [],
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currentDepth: 0,
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stylize: stylizeNoColor,
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showHidden: inspectDefaultOptions.showHidden,
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depth: inspectDefaultOptions.depth,
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colors: inspectDefaultOptions.colors,
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customInspect: inspectDefaultOptions.customInspect,
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showProxy: inspectDefaultOptions.showProxy,
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maxArrayLength: inspectDefaultOptions.maxArrayLength,
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maxStringLength: inspectDefaultOptions.maxStringLength,
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breakLength: inspectDefaultOptions.breakLength,
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compact: inspectDefaultOptions.compact,
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sorted: inspectDefaultOptions.sorted,
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getters: inspectDefaultOptions.getters,
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};
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if (arguments.length > 1) {
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// Legacy...
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if (arguments.length > 2) {
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if (arguments[2] !== undefined) {
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ctx.depth = arguments[2];
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}
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if (arguments.length > 3 && arguments[3] !== undefined) {
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ctx.colors = arguments[3];
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}
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}
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// Set user-specified options
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if (typeof opts === "boolean") {
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ctx.showHidden = opts;
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} else if (opts) {
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const optKeys = Object.keys(opts);
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for (let i = 0; i < optKeys.length; ++i) {
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const key = optKeys[i];
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// TODO(BridgeAR): Find a solution what to do about stylize. Either make
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// this function public or add a new API with a similar or better
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// functionality.
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if (
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// deno-lint-ignore no-prototype-builtins
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inspectDefaultOptions.hasOwnProperty(key) ||
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key === "stylize"
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) {
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ctx[key] = opts[key];
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} else if (ctx.userOptions === undefined) {
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// This is required to pass through the actual user input.
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ctx.userOptions = opts;
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}
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}
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}
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}
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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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if (ctx.maxStringLength === null) ctx.maxStringLength = Infinity;
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return formatValue(ctx, value, 0);
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}
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const customInspectSymbol = Symbol.for("nodejs.util.inspect.custom");
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inspect.custom = customInspectSymbol;
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Object.defineProperty(inspect, "defaultOptions", {
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get() {
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return inspectDefaultOptions;
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},
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set(options) {
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validateObject(options, "options");
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return Object.assign(inspectDefaultOptions, options);
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},
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});
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// Set Graphics Rendition https://en.wikipedia.org/wiki/ANSI_escape_code#graphics
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// Each color consists of an array with the color code as first entry and the
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// reset code as second entry.
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const defaultFG = 39;
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const defaultBG = 49;
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inspect.colors = Object.assign(Object.create(null), {
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reset: [0, 0],
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bold: [1, 22],
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dim: [2, 22], // Alias: faint
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italic: [3, 23],
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underline: [4, 24],
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blink: [5, 25],
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// Swap foreground and background colors
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inverse: [7, 27], // Alias: swapcolors, swapColors
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hidden: [8, 28], // Alias: conceal
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strikethrough: [9, 29], // Alias: strikeThrough, crossedout, crossedOut
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doubleunderline: [21, 24], // Alias: doubleUnderline
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black: [30, defaultFG],
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red: [31, defaultFG],
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green: [32, defaultFG],
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yellow: [33, defaultFG],
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blue: [34, defaultFG],
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magenta: [35, defaultFG],
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cyan: [36, defaultFG],
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white: [37, defaultFG],
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bgBlack: [40, defaultBG],
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bgRed: [41, defaultBG],
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bgGreen: [42, defaultBG],
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bgYellow: [43, defaultBG],
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bgBlue: [44, defaultBG],
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bgMagenta: [45, defaultBG],
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bgCyan: [46, defaultBG],
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bgWhite: [47, defaultBG],
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framed: [51, 54],
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overlined: [53, 55],
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gray: [90, defaultFG], // Alias: grey, blackBright
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redBright: [91, defaultFG],
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greenBright: [92, defaultFG],
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yellowBright: [93, defaultFG],
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blueBright: [94, defaultFG],
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magentaBright: [95, defaultFG],
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cyanBright: [96, defaultFG],
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whiteBright: [97, defaultFG],
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bgGray: [100, defaultBG], // Alias: bgGrey, bgBlackBright
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bgRedBright: [101, defaultBG],
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bgGreenBright: [102, defaultBG],
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bgYellowBright: [103, defaultBG],
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bgBlueBright: [104, defaultBG],
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bgMagentaBright: [105, defaultBG],
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bgCyanBright: [106, defaultBG],
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bgWhiteBright: [107, defaultBG],
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});
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function defineColorAlias(target, alias) {
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Object.defineProperty(inspect.colors, alias, {
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get() {
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return this[target];
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},
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set(value) {
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this[target] = value;
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},
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configurable: true,
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enumerable: false,
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});
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}
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defineColorAlias("gray", "grey");
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defineColorAlias("gray", "blackBright");
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defineColorAlias("bgGray", "bgGrey");
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defineColorAlias("bgGray", "bgBlackBright");
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defineColorAlias("dim", "faint");
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defineColorAlias("strikethrough", "crossedout");
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defineColorAlias("strikethrough", "strikeThrough");
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defineColorAlias("strikethrough", "crossedOut");
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defineColorAlias("hidden", "conceal");
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defineColorAlias("inverse", "swapColors");
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defineColorAlias("inverse", "swapcolors");
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defineColorAlias("doubleunderline", "doubleUnderline");
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// TODO(BridgeAR): Add function style support for more complex styles.
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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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bigint: "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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// TODO(BridgeAR): Highlight regular expressions properly.
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regexp: "red",
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module: "underline",
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});
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function addQuotes(str, quotes) {
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if (quotes === -1) {
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return `"${str}"`;
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}
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if (quotes === -2) {
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return `\`${str}\``;
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}
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return `'${str}'`;
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}
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// TODO(wafuwafu13): Figure out
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const escapeFn = (str) => meta[str.charCodeAt(0)];
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// Escape control characters, single quotes and the backslash.
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// This is similar to JSON stringify escaping.
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function strEscape(str) {
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let escapeTest = strEscapeSequencesRegExp;
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let escapeReplace = strEscapeSequencesReplacer;
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let singleQuote = 39;
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// Check for double quotes. If not present, do not escape single quotes and
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// instead wrap the text in double quotes. If double quotes exist, check for
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// backticks. If they do not exist, use those as fallback instead of the
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// double quotes.
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if (str.includes("'")) {
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// This invalidates the charCode and therefore can not be matched for
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// anymore.
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if (!str.includes('"')) {
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singleQuote = -1;
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} else if (
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!str.includes("`") &&
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!str.includes("${")
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) {
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singleQuote = -2;
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}
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if (singleQuote !== 39) {
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escapeTest = strEscapeSequencesRegExpSingle;
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escapeReplace = strEscapeSequencesReplacerSingle;
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}
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}
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// Some magic numbers that worked out fine while benchmarking with v8 6.0
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if (str.length < 5000 && !escapeTest.test(str)) {
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return addQuotes(str, singleQuote);
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}
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if (str.length > 100) {
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str = str.replace(escapeReplace, escapeFn);
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return addQuotes(str, singleQuote);
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}
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let result = "";
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let last = 0;
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const lastIndex = str.length;
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for (let i = 0; i < lastIndex; i++) {
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const point = str.charCodeAt(i);
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if (
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point === singleQuote ||
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point === 92 ||
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point < 32 ||
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(point > 126 && point < 160)
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) {
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if (last === i) {
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result += meta[point];
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} else {
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result += `${str.slice(last, i)}${meta[point]}`;
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}
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last = i + 1;
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}
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}
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if (last !== lastIndex) {
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result += str.slice(last);
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}
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return addQuotes(result, singleQuote);
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}
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function stylizeWithColor(str, styleType) {
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const style = inspect.styles[styleType];
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if (style !== undefined) {
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const color = inspect.colors[style];
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if (color !== undefined) {
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return `\u001b[${color[0]}m${str}\u001b[${color[1]}m`;
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}
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}
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return str;
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}
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function stylizeNoColor(str) {
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return str;
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}
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|
|
|
// Note: using `formatValue` directly requires the indentation level to be
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|
// corrected by setting `ctx.indentationLvL += diff` and then to decrease the
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// value afterwards again.
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function formatValue(
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ctx,
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value,
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recurseTimes,
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typedArray,
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) {
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|
// Primitive types cannot have properties.
|
|
if (
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typeof value !== "object" &&
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typeof value !== "function" &&
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!isUndetectableObject(value)
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) {
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return formatPrimitive(ctx.stylize, value, ctx);
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}
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if (value === null) {
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return ctx.stylize("null", "null");
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}
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// Memorize the context for custom inspection on proxies.
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const context = value;
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// Always check for proxies to prevent side effects and to prevent triggering
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// any proxy handlers.
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// TODO(wafuwafu13): Set Proxy
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|
const proxy = undefined;
|
|
// const proxy = getProxyDetails(value, !!ctx.showProxy);
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// if (proxy !== undefined) {
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|
// if (ctx.showProxy) {
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// return formatProxy(ctx, proxy, recurseTimes);
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// }
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// value = proxy;
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// }
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|
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// Provide a hook for user-specified inspect functions.
|
|
// Check that value is an object with an inspect function on it.
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|
if (ctx.customInspect) {
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const maybeCustom = value[customInspectSymbol];
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|
if (
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typeof maybeCustom === "function" &&
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// Filter out the util module, its inspect function is special.
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|
maybeCustom !== 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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) {
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// This makes sure the recurseTimes are reported as before while using
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// a counter internally.
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|
const depth = ctx.depth === null ? null : ctx.depth - recurseTimes;
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const isCrossContext = proxy !== undefined ||
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!(context instanceof Object);
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const ret = maybeCustom.call(
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context,
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depth,
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getUserOptions(ctx, isCrossContext),
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);
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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 !== context) {
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if (typeof ret !== "string") {
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return formatValue(ctx, ret, recurseTimes);
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}
|
|
return ret.replace(/\n/g, `\n${" ".repeat(ctx.indentationLvl)}`);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Using an array here is actually better for the average case than using
|
|
// a Set. `seen` will only check for the depth and will never grow too large.
|
|
if (ctx.seen.includes(value)) {
|
|
let index = 1;
|
|
if (ctx.circular === undefined) {
|
|
ctx.circular = new Map();
|
|
ctx.circular.set(value, index);
|
|
} else {
|
|
index = ctx.circular.get(value);
|
|
if (index === undefined) {
|
|
index = ctx.circular.size + 1;
|
|
ctx.circular.set(value, index);
|
|
}
|
|
}
|
|
return ctx.stylize(`[Circular *${index}]`, "special");
|
|
}
|
|
|
|
return formatRaw(ctx, value, recurseTimes, typedArray);
|
|
}
|
|
|
|
function formatRaw(ctx, value, recurseTimes, typedArray) {
|
|
let keys;
|
|
let protoProps;
|
|
if (ctx.showHidden && (recurseTimes <= ctx.depth || ctx.depth === null)) {
|
|
protoProps = [];
|
|
}
|
|
|
|
const constructor = getConstructorName(value, ctx, recurseTimes, protoProps);
|
|
// Reset the variable to check for this later on.
|
|
if (protoProps !== undefined && protoProps.length === 0) {
|
|
protoProps = undefined;
|
|
}
|
|
|
|
let tag = value[Symbol.toStringTag];
|
|
// Only list the tag in case it's non-enumerable / not an own property.
|
|
// Otherwise we'd print this twice.
|
|
if (
|
|
typeof tag !== "string"
|
|
// TODO(wafuwafu13): Implement
|
|
// (tag !== "" &&
|
|
// (ctx.showHidden
|
|
// ? Object.prototype.hasOwnProperty
|
|
// : Object.prototype.propertyIsEnumerable)(
|
|
// value,
|
|
// Symbol.toStringTag,
|
|
// ))
|
|
) {
|
|
tag = "";
|
|
}
|
|
let base = "";
|
|
let formatter = getEmptyFormatArray;
|
|
let braces;
|
|
let noIterator = true;
|
|
let i = 0;
|
|
const filter = ctx.showHidden ? ALL_PROPERTIES : ONLY_ENUMERABLE;
|
|
|
|
let extrasType = kObjectType;
|
|
|
|
// Iterators and the rest are split to reduce checks.
|
|
// We have to check all values in case the constructor is set to null.
|
|
// Otherwise it would not possible to identify all types properly.
|
|
if (value[Symbol.iterator] || constructor === null) {
|
|
noIterator = false;
|
|
if (Array.isArray(value)) {
|
|
// Only set the constructor for non ordinary ("Array [...]") arrays.
|
|
const prefix = (constructor !== "Array" || tag !== "")
|
|
? getPrefix(constructor, tag, "Array", `(${value.length})`)
|
|
: "";
|
|
keys = getOwnNonIndexProperties(value, filter);
|
|
braces = [`${prefix}[`, "]"];
|
|
if (value.length === 0 && keys.length === 0 && protoProps === undefined) {
|
|
return `${braces[0]}]`;
|
|
}
|
|
extrasType = kArrayExtrasType;
|
|
formatter = formatArray;
|
|
} else if (types.isSet(value)) {
|
|
const size = value.size;
|
|
const prefix = getPrefix(constructor, tag, "Set", `(${size})`);
|
|
keys = getKeys(value, ctx.showHidden);
|
|
formatter = constructor !== null
|
|
? formatSet.bind(null, value)
|
|
: formatSet.bind(null, value.values());
|
|
if (size === 0 && keys.length === 0 && protoProps === undefined) {
|
|
return `${prefix}{}`;
|
|
}
|
|
braces = [`${prefix}{`, "}"];
|
|
} else if (types.isMap(value)) {
|
|
const size = value.size;
|
|
const prefix = getPrefix(constructor, tag, "Map", `(${size})`);
|
|
keys = getKeys(value, ctx.showHidden);
|
|
formatter = constructor !== null
|
|
? formatMap.bind(null, value)
|
|
: formatMap.bind(null, value.entries());
|
|
if (size === 0 && keys.length === 0 && protoProps === undefined) {
|
|
return `${prefix}{}`;
|
|
}
|
|
braces = [`${prefix}{`, "}"];
|
|
} else if (types.isTypedArray(value)) {
|
|
keys = getOwnNonIndexProperties(value, filter);
|
|
const bound = value;
|
|
const fallback = "";
|
|
if (constructor === null) {
|
|
// TODO(wafuwafu13): Implement
|
|
// fallback = TypedArrayPrototypeGetSymbolToStringTag(value);
|
|
// // Reconstruct the array information.
|
|
// bound = new primordials[fallback](value);
|
|
}
|
|
const size = value.length;
|
|
const prefix = getPrefix(constructor, tag, fallback, `(${size})`);
|
|
braces = [`${prefix}[`, "]"];
|
|
if (value.length === 0 && keys.length === 0 && !ctx.showHidden) {
|
|
return `${braces[0]}]`;
|
|
}
|
|
// Special handle the value. The original value is required below. The
|
|
// bound function is required to reconstruct missing information.
|
|
(formatter) = formatTypedArray.bind(null, bound, size);
|
|
extrasType = kArrayExtrasType;
|
|
} else if (types.isMapIterator(value)) {
|
|
keys = getKeys(value, ctx.showHidden);
|
|
braces = getIteratorBraces("Map", tag);
|
|
// Add braces to the formatter parameters.
|
|
(formatter) = formatIterator.bind(null, braces);
|
|
} else if (types.isSetIterator(value)) {
|
|
keys = getKeys(value, ctx.showHidden);
|
|
braces = getIteratorBraces("Set", tag);
|
|
// Add braces to the formatter parameters.
|
|
(formatter) = formatIterator.bind(null, braces);
|
|
} else {
|
|
noIterator = true;
|
|
}
|
|
}
|
|
if (noIterator) {
|
|
keys = getKeys(value, ctx.showHidden);
|
|
braces = ["{", "}"];
|
|
if (constructor === "Object") {
|
|
if (types.isArgumentsObject(value)) {
|
|
braces[0] = "[Arguments] {";
|
|
} else if (tag !== "") {
|
|
braces[0] = `${getPrefix(constructor, tag, "Object")}{`;
|
|
}
|
|
if (keys.length === 0 && protoProps === undefined) {
|
|
return `${braces[0]}}`;
|
|
}
|
|
} else if (typeof value === "function") {
|
|
base = getFunctionBase(value, constructor, tag);
|
|
if (keys.length === 0 && protoProps === undefined) {
|
|
return ctx.stylize(base, "special");
|
|
}
|
|
} else if (types.isRegExp(value)) {
|
|
// Make RegExps say that they are RegExps
|
|
base = RegExp(constructor !== null ? value : new RegExp(value))
|
|
.toString();
|
|
const prefix = getPrefix(constructor, tag, "RegExp");
|
|
if (prefix !== "RegExp ") {
|
|
base = `${prefix}${base}`;
|
|
}
|
|
if (
|
|
(keys.length === 0 && protoProps === undefined) ||
|
|
(recurseTimes > ctx.depth && ctx.depth !== null)
|
|
) {
|
|
return ctx.stylize(base, "regexp");
|
|
}
|
|
} else if (types.isDate(value)) {
|
|
// Make dates with properties first say the date
|
|
base = Number.isNaN(value.getTime())
|
|
? value.toString()
|
|
: value.toISOString();
|
|
const prefix = getPrefix(constructor, tag, "Date");
|
|
if (prefix !== "Date ") {
|
|
base = `${prefix}${base}`;
|
|
}
|
|
if (keys.length === 0 && protoProps === undefined) {
|
|
return ctx.stylize(base, "date");
|
|
}
|
|
} else if (value instanceof Error) {
|
|
base = formatError(value, constructor, tag, ctx, keys);
|
|
if (keys.length === 0 && protoProps === undefined) {
|
|
return base;
|
|
}
|
|
} else if (types.isAnyArrayBuffer(value)) {
|
|
// Fast path for ArrayBuffer and SharedArrayBuffer.
|
|
// Can't do the same for DataView because it has a non-primitive
|
|
// .buffer property that we need to recurse for.
|
|
const arrayType = types.isArrayBuffer(value)
|
|
? "ArrayBuffer"
|
|
: "SharedArrayBuffer";
|
|
const prefix = getPrefix(constructor, tag, arrayType);
|
|
if (typedArray === undefined) {
|
|
(formatter) = formatArrayBuffer;
|
|
} else if (keys.length === 0 && protoProps === undefined) {
|
|
return prefix +
|
|
`{ byteLength: ${formatNumber(ctx.stylize, value.byteLength)} }`;
|
|
}
|
|
braces[0] = `${prefix}{`;
|
|
Array.prototype.unshift.call(keys, "byteLength");
|
|
} else if (types.isDataView(value)) {
|
|
braces[0] = `${getPrefix(constructor, tag, "DataView")}{`;
|
|
// .buffer goes last, it's not a primitive like the others.
|
|
Array.prototype.unshift.call(keys, "byteLength", "byteOffset", "buffer");
|
|
} else if (types.isPromise(value)) {
|
|
braces[0] = `${getPrefix(constructor, tag, "Promise")}{`;
|
|
(formatter) = formatPromise;
|
|
} else if (types.isWeakSet(value)) {
|
|
braces[0] = `${getPrefix(constructor, tag, "WeakSet")}{`;
|
|
(formatter) = ctx.showHidden ? formatWeakSet : formatWeakCollection;
|
|
} else if (types.isWeakMap(value)) {
|
|
braces[0] = `${getPrefix(constructor, tag, "WeakMap")}{`;
|
|
(formatter) = ctx.showHidden ? formatWeakMap : formatWeakCollection;
|
|
} else if (types.isModuleNamespaceObject(value)) {
|
|
braces[0] = `${getPrefix(constructor, tag, "Module")}{`;
|
|
// Special handle keys for namespace objects.
|
|
(formatter) = formatNamespaceObject.bind(null, keys);
|
|
} else if (types.isBoxedPrimitive(value)) {
|
|
base = getBoxedBase(value, ctx, keys, constructor, tag);
|
|
if (keys.length === 0 && protoProps === undefined) {
|
|
return base;
|
|
}
|
|
} else {
|
|
if (keys.length === 0 && protoProps === undefined) {
|
|
// TODO(wafuwafu13): Implement
|
|
// if (types.isExternal(value)) {
|
|
// const address = getExternalValue(value).toString(16);
|
|
// return ctx.stylize(`[External: ${address}]`, 'special');
|
|
// }
|
|
return `${getCtxStyle(value, constructor, tag)}{}`;
|
|
}
|
|
braces[0] = `${getCtxStyle(value, constructor, tag)}{`;
|
|
}
|
|
}
|
|
|
|
if (recurseTimes > ctx.depth && ctx.depth !== null) {
|
|
let constructorName = getCtxStyle(value, constructor, tag).slice(0, -1);
|
|
if (constructor !== null) {
|
|
constructorName = `[${constructorName}]`;
|
|
}
|
|
return ctx.stylize(constructorName, "special");
|
|
}
|
|
recurseTimes += 1;
|
|
|
|
ctx.seen.push(value);
|
|
ctx.currentDepth = recurseTimes;
|
|
let output;
|
|
const indentationLvl = ctx.indentationLvl;
|
|
try {
|
|
output = formatter(ctx, value, recurseTimes);
|
|
for (i = 0; i < keys.length; i++) {
|
|
output.push(
|
|
formatProperty(ctx, value, recurseTimes, keys[i], extrasType),
|
|
);
|
|
}
|
|
if (protoProps !== undefined) {
|
|
output.push(...protoProps);
|
|
}
|
|
} catch (err) {
|
|
const constructorName = getCtxStyle(value, constructor, tag).slice(0, -1);
|
|
return handleMaxCallStackSize(ctx, err, constructorName, indentationLvl);
|
|
}
|
|
if (ctx.circular !== undefined) {
|
|
const index = ctx.circular.get(value);
|
|
if (index !== undefined) {
|
|
const reference = ctx.stylize(`<ref *${index}>`, "special");
|
|
// Add reference always to the very beginning of the output.
|
|
if (ctx.compact !== true) {
|
|
base = base === "" ? reference : `${reference} ${base}`;
|
|
} else {
|
|
braces[0] = `${reference} ${braces[0]}`;
|
|
}
|
|
}
|
|
}
|
|
ctx.seen.pop();
|
|
|
|
if (ctx.sorted) {
|
|
const comparator = ctx.sorted === true ? undefined : ctx.sorted;
|
|
if (extrasType === kObjectType) {
|
|
output = output.sort(comparator);
|
|
} else if (keys.length > 1) {
|
|
const sorted = output.slice(output.length - keys.length).sort(comparator);
|
|
output.splice(output.length - keys.length, keys.length, ...sorted);
|
|
}
|
|
}
|
|
|
|
const res = reduceToSingleString(
|
|
ctx,
|
|
output,
|
|
base,
|
|
braces,
|
|
extrasType,
|
|
recurseTimes,
|
|
value,
|
|
);
|
|
const budget = ctx.budget[ctx.indentationLvl] || 0;
|
|
const newLength = budget + res.length;
|
|
ctx.budget[ctx.indentationLvl] = newLength;
|
|
// If any indentationLvl exceeds this limit, limit further inspecting to the
|
|
// minimum. Otherwise the recursive algorithm might continue inspecting the
|
|
// object even though the maximum string size (~2 ** 28 on 32 bit systems and
|
|
// ~2 ** 30 on 64 bit systems) exceeded. The actual output is not limited at
|
|
// exactly 2 ** 27 but a bit higher. This depends on the object shape.
|
|
// This limit also makes sure that huge objects don't block the event loop
|
|
// significantly.
|
|
if (newLength > 2 ** 27) {
|
|
ctx.depth = -1;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
const builtInObjects = new Set(
|
|
Object.getOwnPropertyNames(globalThis).filter((e) =>
|
|
/^[A-Z][a-zA-Z0-9]+$/.test(e)
|
|
),
|
|
);
|
|
|
|
function addPrototypeProperties(
|
|
ctx,
|
|
main,
|
|
obj,
|
|
recurseTimes,
|
|
output,
|
|
) {
|
|
let depth = 0;
|
|
let keys;
|
|
let keySet;
|
|
do {
|
|
if (depth !== 0 || main === obj) {
|
|
obj = Object.getPrototypeOf(obj);
|
|
// Stop as soon as a null prototype is encountered.
|
|
if (obj === null) {
|
|
return;
|
|
}
|
|
// Stop as soon as a built-in object type is detected.
|
|
const descriptor = Object.getOwnPropertyDescriptor(obj, "constructor");
|
|
if (
|
|
descriptor !== undefined &&
|
|
typeof descriptor.value === "function" &&
|
|
builtInObjects.has(descriptor.value.name)
|
|
) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (depth === 0) {
|
|
keySet = new Set();
|
|
} else {
|
|
Array.prototype.forEach.call(keys, (key) => keySet.add(key));
|
|
}
|
|
// Get all own property names and symbols.
|
|
keys = Reflect.ownKeys(obj);
|
|
Array.prototype.push.call(ctx.seen, main);
|
|
for (const key of keys) {
|
|
// Ignore the `constructor` property and keys that exist on layers above.
|
|
if (
|
|
key === "constructor" ||
|
|
// deno-lint-ignore no-prototype-builtins
|
|
main.hasOwnProperty(key) ||
|
|
(depth !== 0 && keySet.has(key))
|
|
) {
|
|
continue;
|
|
}
|
|
const desc = Object.getOwnPropertyDescriptor(obj, key);
|
|
if (typeof desc.value === "function") {
|
|
continue;
|
|
}
|
|
const value = formatProperty(
|
|
ctx,
|
|
obj,
|
|
recurseTimes,
|
|
key,
|
|
kObjectType,
|
|
desc,
|
|
main,
|
|
);
|
|
if (ctx.colors) {
|
|
// Faint!
|
|
Array.prototype.push.call(output, `\u001b[2m${value}\u001b[22m`);
|
|
} else {
|
|
Array.prototype.push.call(output, value);
|
|
}
|
|
}
|
|
Array.prototype.pop.call(ctx.seen);
|
|
// Limit the inspection to up to three prototype layers. Using `recurseTimes`
|
|
// is not a good choice here, because it's as if the properties are declared
|
|
// on the current object from the users perspective.
|
|
} while (++depth !== 3);
|
|
}
|
|
|
|
function getConstructorName(
|
|
obj,
|
|
ctx,
|
|
recurseTimes,
|
|
protoProps,
|
|
) {
|
|
let firstProto;
|
|
const tmp = obj;
|
|
while (obj || isUndetectableObject(obj)) {
|
|
const descriptor = Object.getOwnPropertyDescriptor(obj, "constructor");
|
|
if (
|
|
descriptor !== undefined &&
|
|
typeof descriptor.value === "function" &&
|
|
descriptor.value.name !== "" &&
|
|
isInstanceof(tmp, descriptor.value)
|
|
) {
|
|
if (
|
|
protoProps !== undefined &&
|
|
(firstProto !== obj ||
|
|
!builtInObjects.has(descriptor.value.name))
|
|
) {
|
|
addPrototypeProperties(
|
|
ctx,
|
|
tmp,
|
|
firstProto || tmp,
|
|
recurseTimes,
|
|
protoProps,
|
|
);
|
|
}
|
|
return descriptor.value.name;
|
|
}
|
|
|
|
obj = Object.getPrototypeOf(obj);
|
|
if (firstProto === undefined) {
|
|
firstProto = obj;
|
|
}
|
|
}
|
|
|
|
if (firstProto === null) {
|
|
return null;
|
|
}
|
|
|
|
// TODO(wafuwafu13): Implement
|
|
// const res = internalGetConstructorName(tmp);
|
|
const res = undefined;
|
|
|
|
if (recurseTimes > ctx.depth && ctx.depth !== null) {
|
|
return `${res} <Complex prototype>`;
|
|
}
|
|
|
|
const protoConstr = getConstructorName(
|
|
firstProto,
|
|
ctx,
|
|
recurseTimes + 1,
|
|
protoProps,
|
|
);
|
|
|
|
if (protoConstr === null) {
|
|
return `${res} <${
|
|
inspect(firstProto, {
|
|
...ctx,
|
|
customInspect: false,
|
|
depth: -1,
|
|
})
|
|
}>`;
|
|
}
|
|
|
|
return `${res} <${protoConstr}>`;
|
|
}
|
|
|
|
function formatPrimitive(fn, value, ctx) {
|
|
if (typeof value === "string") {
|
|
let trailer = "";
|
|
if (value.length > ctx.maxStringLength) {
|
|
const remaining = value.length - ctx.maxStringLength;
|
|
value = value.slice(0, ctx.maxStringLength);
|
|
trailer = `... ${remaining} more character${remaining > 1 ? "s" : ""}`;
|
|
}
|
|
if (
|
|
ctx.compact !== true &&
|
|
// TODO(BridgeAR): Add unicode support. Use the readline getStringWidth
|
|
// function.
|
|
value.length > kMinLineLength &&
|
|
value.length > ctx.breakLength - ctx.indentationLvl - 4
|
|
) {
|
|
return value
|
|
.split(/(?<=\n)/)
|
|
.map((line) => fn(strEscape(line), "string"))
|
|
.join(` +\n${" ".repeat(ctx.indentationLvl + 2)}`) + trailer;
|
|
}
|
|
return fn(strEscape(value), "string") + trailer;
|
|
}
|
|
if (typeof value === "number") {
|
|
return formatNumber(fn, value);
|
|
}
|
|
if (typeof value === "bigint") {
|
|
return formatBigInt(fn, value);
|
|
}
|
|
if (typeof value === "boolean") {
|
|
return fn(`${value}`, "boolean");
|
|
}
|
|
if (typeof value === "undefined") {
|
|
return fn("undefined", "undefined");
|
|
}
|
|
// es6 symbol primitive
|
|
return fn(value.toString(), "symbol");
|
|
}
|
|
|
|
// Return a new empty array to push in the results of the default formatter.
|
|
function getEmptyFormatArray() {
|
|
return [];
|
|
}
|
|
|
|
function isInstanceof(object, proto) {
|
|
try {
|
|
return object instanceof proto;
|
|
} catch {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function getPrefix(constructor, tag, fallback, size = "") {
|
|
if (constructor === null) {
|
|
if (tag !== "" && fallback !== tag) {
|
|
return `[${fallback}${size}: null prototype] [${tag}] `;
|
|
}
|
|
return `[${fallback}${size}: null prototype] `;
|
|
}
|
|
|
|
if (tag !== "" && constructor !== tag) {
|
|
return `${constructor}${size} [${tag}] `;
|
|
}
|
|
return `${constructor}${size} `;
|
|
}
|
|
|
|
function formatArray(ctx, value, recurseTimes) {
|
|
const valLen = value.length;
|
|
const len = Math.min(Math.max(0, ctx.maxArrayLength), valLen);
|
|
|
|
const remaining = valLen - len;
|
|
const output = [];
|
|
for (let i = 0; i < len; i++) {
|
|
// Special handle sparse arrays.
|
|
// deno-lint-ignore no-prototype-builtins
|
|
if (!value.hasOwnProperty(i)) {
|
|
return formatSpecialArray(ctx, value, recurseTimes, len, output, i);
|
|
}
|
|
output.push(formatProperty(ctx, value, recurseTimes, i, kArrayType));
|
|
}
|
|
if (remaining > 0) {
|
|
output.push(`... ${remaining} more item${remaining > 1 ? "s" : ""}`);
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function getCtxStyle(_value, constructor, tag) {
|
|
let fallback = "";
|
|
if (constructor === null) {
|
|
// TODO(wafuwafu13): Implement
|
|
// fallback = internalGetConstructorName(value);
|
|
if (fallback === tag) {
|
|
fallback = "Object";
|
|
}
|
|
}
|
|
return getPrefix(constructor, tag, fallback);
|
|
}
|
|
|
|
// Look up the keys of the object.
|
|
function getKeys(value, showHidden) {
|
|
let keys;
|
|
const symbols = Object.getOwnPropertySymbols(value);
|
|
if (showHidden) {
|
|
keys = Object.getOwnPropertyNames(value);
|
|
if (symbols.length !== 0) {
|
|
Array.prototype.push.apply(keys, symbols);
|
|
}
|
|
} else {
|
|
// This might throw if `value` is a Module Namespace Object from an
|
|
// unevaluated module, but we don't want to perform the actual type
|
|
// check because it's expensive.
|
|
// TODO(devsnek): track https://github.com/tc39/ecma262/issues/1209
|
|
// and modify this logic as needed.
|
|
try {
|
|
keys = Object.keys(value);
|
|
} catch (_err) {
|
|
// TODO(wafuwafu13): Implement
|
|
// assert(isNativeError(err) && err.name === 'ReferenceError' &&
|
|
// isModuleNamespaceObject(value));
|
|
keys = Object.getOwnPropertyNames(value);
|
|
}
|
|
if (symbols.length !== 0) {
|
|
// TODO(wafuwafu13): Implement
|
|
// const filter = (key: any) =>
|
|
//
|
|
// Object.prototype.propertyIsEnumerable(value, key);
|
|
// Array.prototype.push.apply(
|
|
// keys,
|
|
// symbols.filter(filter),
|
|
// );
|
|
}
|
|
}
|
|
return keys;
|
|
}
|
|
|
|
function formatSet(value, ctx, _ignored, recurseTimes) {
|
|
const output = [];
|
|
ctx.indentationLvl += 2;
|
|
for (const v of value) {
|
|
Array.prototype.push.call(output, formatValue(ctx, v, recurseTimes));
|
|
}
|
|
ctx.indentationLvl -= 2;
|
|
return output;
|
|
}
|
|
|
|
function formatMap(value, ctx, _gnored, recurseTimes) {
|
|
const output = [];
|
|
ctx.indentationLvl += 2;
|
|
for (const { 0: k, 1: v } of value) {
|
|
output.push(
|
|
`${formatValue(ctx, k, recurseTimes)} => ${
|
|
formatValue(ctx, v, recurseTimes)
|
|
}`,
|
|
);
|
|
}
|
|
ctx.indentationLvl -= 2;
|
|
return output;
|
|
}
|
|
|
|
function formatTypedArray(
|
|
value,
|
|
length,
|
|
ctx,
|
|
_ignored,
|
|
recurseTimes,
|
|
) {
|
|
const maxLength = Math.min(Math.max(0, ctx.maxArrayLength), length);
|
|
const remaining = value.length - maxLength;
|
|
const output = new Array(maxLength);
|
|
const elementFormatter = value.length > 0 && typeof value[0] === "number"
|
|
? formatNumber
|
|
: formatBigInt;
|
|
for (let i = 0; i < maxLength; ++i) {
|
|
output[i] = elementFormatter(ctx.stylize, value[i]);
|
|
}
|
|
if (remaining > 0) {
|
|
output[maxLength] = `... ${remaining} more item${remaining > 1 ? "s" : ""}`;
|
|
}
|
|
if (ctx.showHidden) {
|
|
// .buffer goes last, it's not a primitive like the others.
|
|
// All besides `BYTES_PER_ELEMENT` are actually getters.
|
|
ctx.indentationLvl += 2;
|
|
for (
|
|
const key of [
|
|
"BYTES_PER_ELEMENT",
|
|
"length",
|
|
"byteLength",
|
|
"byteOffset",
|
|
"buffer",
|
|
]
|
|
) {
|
|
const str = formatValue(ctx, value[key], recurseTimes, true);
|
|
Array.prototype.push.call(output, `[${key}]: ${str}`);
|
|
}
|
|
ctx.indentationLvl -= 2;
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function getIteratorBraces(type, tag) {
|
|
if (tag !== `${type} Iterator`) {
|
|
if (tag !== "") {
|
|
tag += "] [";
|
|
}
|
|
tag += `${type} Iterator`;
|
|
}
|
|
return [`[${tag}] {`, "}"];
|
|
}
|
|
|
|
function formatIterator(braces, ctx, value, recurseTimes) {
|
|
// TODO(wafuwafu13): Implement
|
|
// const { 0: entries, 1: isKeyValue } = previewEntries(value, true);
|
|
const { 0: entries, 1: isKeyValue } = value;
|
|
if (isKeyValue) {
|
|
// Mark entry iterators as such.
|
|
braces[0] = braces[0].replace(/ Iterator] {$/, " Entries] {");
|
|
return formatMapIterInner(ctx, recurseTimes, entries, kMapEntries);
|
|
}
|
|
|
|
return formatSetIterInner(ctx, recurseTimes, entries, kIterator);
|
|
}
|
|
|
|
function getFunctionBase(value, constructor, tag) {
|
|
const stringified = Function.prototype.toString.call(value);
|
|
if (stringified.slice(0, 5) === "class" && stringified.endsWith("}")) {
|
|
const slice = stringified.slice(5, -1);
|
|
const bracketIndex = slice.indexOf("{");
|
|
if (
|
|
bracketIndex !== -1 &&
|
|
(!slice.slice(0, bracketIndex).includes("(") ||
|
|
// Slow path to guarantee that it's indeed a class.
|
|
classRegExp.test(slice.replace(stripCommentsRegExp)))
|
|
) {
|
|
return getClassBase(value, constructor, tag);
|
|
}
|
|
}
|
|
let type = "Function";
|
|
if (types.isGeneratorFunction(value)) {
|
|
type = `Generator${type}`;
|
|
}
|
|
if (types.isAsyncFunction(value)) {
|
|
type = `Async${type}`;
|
|
}
|
|
let base = `[${type}`;
|
|
if (constructor === null) {
|
|
base += " (null prototype)";
|
|
}
|
|
if (value.name === "") {
|
|
base += " (anonymous)";
|
|
} else {
|
|
base += `: ${value.name}`;
|
|
}
|
|
base += "]";
|
|
if (constructor !== type && constructor !== null) {
|
|
base += ` ${constructor}`;
|
|
}
|
|
if (tag !== "" && constructor !== tag) {
|
|
base += ` [${tag}]`;
|
|
}
|
|
return base;
|
|
}
|
|
|
|
function formatError(
|
|
err,
|
|
constructor,
|
|
tag,
|
|
ctx,
|
|
keys,
|
|
) {
|
|
const name = err.name != null ? String(err.name) : "Error";
|
|
let len = name.length;
|
|
let stack = err.stack ? String(err.stack) : err.toString();
|
|
|
|
// Do not "duplicate" error properties that are already included in the output
|
|
// otherwise.
|
|
if (!ctx.showHidden && keys.length !== 0) {
|
|
for (const name of ["name", "message", "stack"]) {
|
|
const index = keys.indexOf(name);
|
|
// Only hide the property in case it's part of the original stack
|
|
if (index !== -1 && stack.includes(err[name])) {
|
|
keys.splice(index, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
// A stack trace may contain arbitrary data. Only manipulate the output
|
|
// for "regular errors" (errors that "look normal") for now.
|
|
if (
|
|
constructor === null ||
|
|
(name.endsWith("Error") &&
|
|
stack.startsWith(name) &&
|
|
(stack.length === len || stack[len] === ":" || stack[len] === "\n"))
|
|
) {
|
|
let fallback = "Error";
|
|
if (constructor === null) {
|
|
const start = stack.match(/^([A-Z][a-z_ A-Z0-9[\]()-]+)(?::|\n {4}at)/) ||
|
|
stack.match(/^([a-z_A-Z0-9-]*Error)$/);
|
|
fallback = (start && start[1]) || "";
|
|
len = fallback.length;
|
|
fallback = fallback || "Error";
|
|
}
|
|
const prefix = getPrefix(constructor, tag, fallback).slice(0, -1);
|
|
if (name !== prefix) {
|
|
if (prefix.includes(name)) {
|
|
if (len === 0) {
|
|
stack = `${prefix}: ${stack}`;
|
|
} else {
|
|
stack = `${prefix}${stack.slice(len)}`;
|
|
}
|
|
} else {
|
|
stack = `${prefix} [${name}]${stack.slice(len)}`;
|
|
}
|
|
}
|
|
}
|
|
// Ignore the error message if it's contained in the stack.
|
|
let pos = (err.message && stack.indexOf(err.message)) || -1;
|
|
if (pos !== -1) {
|
|
pos += err.message.length;
|
|
}
|
|
// Wrap the error in brackets in case it has no stack trace.
|
|
const stackStart = stack.indexOf("\n at", pos);
|
|
if (stackStart === -1) {
|
|
stack = `[${stack}]`;
|
|
} else if (ctx.colors) {
|
|
// Highlight userland code and node modules.
|
|
let newStack = stack.slice(0, stackStart);
|
|
const lines = stack.slice(stackStart + 1).split("\n");
|
|
for (const line of lines) {
|
|
// const core = line.match(coreModuleRegExp);
|
|
// TODO(wafuwafu13): Implement
|
|
// if (core !== null && NativeModule.exists(core[1])) {
|
|
// newStack += `\n${ctx.stylize(line, 'undefined')}`;
|
|
// } else {
|
|
// This adds underscores to all node_modules to quickly identify them.
|
|
let nodeModule;
|
|
newStack += "\n";
|
|
let pos = 0;
|
|
// deno-lint-ignore no-cond-assign
|
|
while (nodeModule = nodeModulesRegExp.exec(line)) {
|
|
// '/node_modules/'.length === 14
|
|
newStack += line.slice(pos, nodeModule.index + 14);
|
|
newStack += ctx.stylize(nodeModule[1], "module");
|
|
pos = nodeModule.index + nodeModule[0].length;
|
|
}
|
|
newStack += pos === 0 ? line : line.slice(pos);
|
|
// }
|
|
}
|
|
stack = newStack;
|
|
}
|
|
// The message and the stack have to be indented as well!
|
|
if (ctx.indentationLvl !== 0) {
|
|
const indentation = " ".repeat(ctx.indentationLvl);
|
|
stack = stack.replace(/\n/g, `\n${indentation}`);
|
|
}
|
|
return stack;
|
|
}
|
|
|
|
let hexSlice;
|
|
|
|
function formatArrayBuffer(ctx, value) {
|
|
let buffer;
|
|
try {
|
|
buffer = new Uint8Array(value);
|
|
} catch {
|
|
return [ctx.stylize("(detached)", "special")];
|
|
}
|
|
// TODO(wafuwafu13): Implement
|
|
// if (hexSlice === undefined)
|
|
// hexSlice = uncurryThis(require('buffer').Buffer.prototype.hexSlice);
|
|
let str = hexSlice(buffer, 0, Math.min(ctx.maxArrayLength, buffer.length))
|
|
.replace(/(.{2})/g, "$1 ").trim();
|
|
|
|
const remaining = buffer.length - ctx.maxArrayLength;
|
|
if (remaining > 0) {
|
|
str += ` ... ${remaining} more byte${remaining > 1 ? "s" : ""}`;
|
|
}
|
|
return [`${ctx.stylize("[Uint8Contents]", "special")}: <${str}>`];
|
|
}
|
|
|
|
function formatNumber(fn, value) {
|
|
// Format -0 as '-0'. Checking `value === -0` won't distinguish 0 from -0.
|
|
return fn(Object.is(value, -0) ? "-0" : `${value}`, "number");
|
|
}
|
|
|
|
function formatPromise(ctx, value, recurseTimes) {
|
|
let output;
|
|
// TODO(wafuwafu13): Implement
|
|
// const { 0: state, 1: result } = getPromiseDetails(value);
|
|
const { 0: state, 1: result } = value;
|
|
if (state === kPending) {
|
|
output = [ctx.stylize("<pending>", "special")];
|
|
} else {
|
|
ctx.indentationLvl += 2;
|
|
const str = formatValue(ctx, result, recurseTimes);
|
|
ctx.indentationLvl -= 2;
|
|
output = [
|
|
state === kRejected
|
|
? `${ctx.stylize("<rejected>", "special")} ${str}`
|
|
: str,
|
|
];
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function formatWeakCollection(ctx) {
|
|
return [ctx.stylize("<items unknown>", "special")];
|
|
}
|
|
|
|
function formatWeakSet(ctx, value, recurseTimes) {
|
|
// TODO(wafuwafu13): Implement
|
|
// const entries = previewEntries(value);
|
|
const entries = value;
|
|
return formatSetIterInner(ctx, recurseTimes, entries, kWeak);
|
|
}
|
|
|
|
function formatWeakMap(ctx, value, recurseTimes) {
|
|
// TODO(wafuwafu13): Implement
|
|
// const entries = previewEntries(value);
|
|
const entries = value;
|
|
return formatMapIterInner(ctx, recurseTimes, entries, kWeak);
|
|
}
|
|
|
|
function formatProperty(
|
|
ctx,
|
|
value,
|
|
recurseTimes,
|
|
key,
|
|
type,
|
|
desc,
|
|
original = value,
|
|
) {
|
|
let name, str;
|
|
let extra = " ";
|
|
desc = desc || Object.getOwnPropertyDescriptor(value, key) ||
|
|
{ value: value[key], enumerable: true };
|
|
if (desc.value !== undefined) {
|
|
const diff = (ctx.compact !== true || type !== kObjectType) ? 2 : 3;
|
|
ctx.indentationLvl += diff;
|
|
str = formatValue(ctx, desc.value, recurseTimes);
|
|
if (diff === 3 && ctx.breakLength < getStringWidth(str, ctx.colors)) {
|
|
extra = `\n${" ".repeat(ctx.indentationLvl)}`;
|
|
}
|
|
ctx.indentationLvl -= diff;
|
|
} else if (desc.get !== undefined) {
|
|
const label = desc.set !== undefined ? "Getter/Setter" : "Getter";
|
|
const s = ctx.stylize;
|
|
const sp = "special";
|
|
if (
|
|
ctx.getters && (ctx.getters === true ||
|
|
(ctx.getters === "get" && desc.set === undefined) ||
|
|
(ctx.getters === "set" && desc.set !== undefined))
|
|
) {
|
|
try {
|
|
const tmp = desc.get.call(original);
|
|
ctx.indentationLvl += 2;
|
|
if (tmp === null) {
|
|
str = `${s(`[${label}:`, sp)} ${s("null", "null")}${s("]", sp)}`;
|
|
} else if (typeof tmp === "object") {
|
|
str = `${s(`[${label}]`, sp)} ${formatValue(ctx, tmp, recurseTimes)}`;
|
|
} else {
|
|
const primitive = formatPrimitive(s, tmp, ctx);
|
|
str = `${s(`[${label}:`, sp)} ${primitive}${s("]", sp)}`;
|
|
}
|
|
ctx.indentationLvl -= 2;
|
|
} catch (err) {
|
|
const message = `<Inspection threw (${err.message})>`;
|
|
str = `${s(`[${label}:`, sp)} ${message}${s("]", sp)}`;
|
|
}
|
|
} else {
|
|
str = ctx.stylize(`[${label}]`, sp);
|
|
}
|
|
} else if (desc.set !== undefined) {
|
|
str = ctx.stylize("[Setter]", "special");
|
|
} else {
|
|
str = ctx.stylize("undefined", "undefined");
|
|
}
|
|
if (type === kArrayType) {
|
|
return str;
|
|
}
|
|
if (typeof key === "symbol") {
|
|
const tmp = key.toString().replace(strEscapeSequencesReplacer, escapeFn);
|
|
|
|
name = `[${ctx.stylize(tmp, "symbol")}]`;
|
|
} else if (key === "__proto__") {
|
|
name = "['__proto__']";
|
|
} else if (desc.enumerable === false) {
|
|
const tmp = key.replace(strEscapeSequencesReplacer, escapeFn);
|
|
|
|
name = `[${tmp}]`;
|
|
} else if (keyStrRegExp.test(key)) {
|
|
name = ctx.stylize(key, "name");
|
|
} else {
|
|
name = ctx.stylize(strEscape(key), "string");
|
|
}
|
|
return `${name}:${extra}${str}`;
|
|
}
|
|
|
|
function handleMaxCallStackSize(
|
|
_ctx,
|
|
_err,
|
|
_constructorName,
|
|
_indentationLvl,
|
|
) {
|
|
// TODO(wafuwafu13): Implement
|
|
// if (types.isStackOverflowError(err)) {
|
|
// ctx.seen.pop();
|
|
// ctx.indentationLvl = indentationLvl;
|
|
// return ctx.stylize(
|
|
// `[${constructorName}: Inspection interrupted ` +
|
|
// 'prematurely. Maximum call stack size exceeded.]',
|
|
// 'special'
|
|
// );
|
|
// }
|
|
// /* c8 ignore next */
|
|
// assert.fail(err.stack);
|
|
}
|
|
|
|
// deno-lint-ignore no-control-regex
|
|
const colorRegExp = /\u001b\[\d\d?m/g;
|
|
function removeColors(str) {
|
|
return str.replace(colorRegExp, "");
|
|
}
|
|
|
|
function isBelowBreakLength(ctx, output, start, base) {
|
|
// Each entry is separated by at least a comma. Thus, we start with a total
|
|
// length of at least `output.length`. In addition, some cases have a
|
|
// whitespace in-between each other that is added to the total as well.
|
|
// TODO(BridgeAR): Add unicode support. Use the readline getStringWidth
|
|
// function. Check the performance overhead and make it an opt-in in case it's
|
|
// significant.
|
|
let totalLength = output.length + start;
|
|
if (totalLength + output.length > ctx.breakLength) {
|
|
return false;
|
|
}
|
|
for (let i = 0; i < output.length; i++) {
|
|
if (ctx.colors) {
|
|
totalLength += removeColors(output[i]).length;
|
|
} else {
|
|
totalLength += output[i].length;
|
|
}
|
|
if (totalLength > ctx.breakLength) {
|
|
return false;
|
|
}
|
|
}
|
|
// Do not line up properties on the same line if `base` contains line breaks.
|
|
return base === "" || !base.includes("\n");
|
|
}
|
|
|
|
function formatBigInt(fn, value) {
|
|
return fn(`${value}n`, "bigint");
|
|
}
|
|
|
|
function formatNamespaceObject(
|
|
keys,
|
|
ctx,
|
|
value,
|
|
recurseTimes,
|
|
) {
|
|
const output = new Array(keys.length);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
try {
|
|
output[i] = formatProperty(
|
|
ctx,
|
|
value,
|
|
recurseTimes,
|
|
keys[i],
|
|
kObjectType,
|
|
);
|
|
} catch (_err) {
|
|
// TODO(wafuwfu13): Implement
|
|
// assert(isNativeError(err) && err.name === 'ReferenceError');
|
|
// Use the existing functionality. This makes sure the indentation and
|
|
// line breaks are always correct. Otherwise it is very difficult to keep
|
|
// this aligned, even though this is a hacky way of dealing with this.
|
|
const tmp = { [keys[i]]: "" };
|
|
output[i] = formatProperty(ctx, tmp, recurseTimes, keys[i], kObjectType);
|
|
const pos = output[i].lastIndexOf(" ");
|
|
// We have to find the last whitespace and have to replace that value as
|
|
// it will be visualized as a regular string.
|
|
output[i] = output[i].slice(0, pos + 1) +
|
|
ctx.stylize("<uninitialized>", "special");
|
|
}
|
|
}
|
|
// Reset the keys to an empty array. This prevents duplicated inspection.
|
|
keys.length = 0;
|
|
return output;
|
|
}
|
|
|
|
// The array is sparse and/or has extra keys
|
|
function formatSpecialArray(
|
|
ctx,
|
|
value,
|
|
recurseTimes,
|
|
maxLength,
|
|
output,
|
|
i,
|
|
) {
|
|
const keys = Object.keys(value);
|
|
let index = i;
|
|
for (; i < keys.length && output.length < maxLength; i++) {
|
|
const key = keys[i];
|
|
const tmp = +key;
|
|
// Arrays can only have up to 2^32 - 1 entries
|
|
if (tmp > 2 ** 32 - 2) {
|
|
break;
|
|
}
|
|
if (`${index}` !== key) {
|
|
if (!numberRegExp.test(key)) {
|
|
break;
|
|
}
|
|
const emptyItems = tmp - index;
|
|
const ending = emptyItems > 1 ? "s" : "";
|
|
const message = `<${emptyItems} empty item${ending}>`;
|
|
output.push(ctx.stylize(message, "undefined"));
|
|
index = tmp;
|
|
if (output.length === maxLength) {
|
|
break;
|
|
}
|
|
}
|
|
output.push(formatProperty(ctx, value, recurseTimes, key, kArrayType));
|
|
index++;
|
|
}
|
|
const remaining = value.length - index;
|
|
if (output.length !== maxLength) {
|
|
if (remaining > 0) {
|
|
const ending = remaining > 1 ? "s" : "";
|
|
const message = `<${remaining} empty item${ending}>`;
|
|
output.push(ctx.stylize(message, "undefined"));
|
|
}
|
|
} else if (remaining > 0) {
|
|
output.push(`... ${remaining} more item${remaining > 1 ? "s" : ""}`);
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function getBoxedBase(
|
|
value,
|
|
ctx,
|
|
keys,
|
|
constructor,
|
|
tag,
|
|
) {
|
|
let type;
|
|
if (types.isNumberObject(value)) {
|
|
type = "Number";
|
|
} else if (types.isStringObject(value)) {
|
|
type = "String";
|
|
// For boxed Strings, we have to remove the 0-n indexed entries,
|
|
// since they just noisy up the output and are redundant
|
|
// Make boxed primitive Strings look like such
|
|
keys.splice(0, value.length);
|
|
} else if (types.isBooleanObject(value)) {
|
|
type = "Boolean";
|
|
} else if (types.isBigIntObject(value)) {
|
|
type = "BigInt";
|
|
} else {
|
|
type = "Symbol";
|
|
}
|
|
let base = `[${type}`;
|
|
if (type !== constructor) {
|
|
if (constructor === null) {
|
|
base += " (null prototype)";
|
|
} else {
|
|
base += ` (${constructor})`;
|
|
}
|
|
}
|
|
|
|
base += `: ${formatPrimitive(stylizeNoColor, value.valueOf(), ctx)}]`;
|
|
if (tag !== "" && tag !== constructor) {
|
|
base += ` [${tag}]`;
|
|
}
|
|
if (keys.length !== 0 || ctx.stylize === stylizeNoColor) {
|
|
return base;
|
|
}
|
|
return ctx.stylize(base, type.toLowerCase());
|
|
}
|
|
|
|
function getClassBase(value, constructor, tag) {
|
|
// deno-lint-ignore no-prototype-builtins
|
|
const hasName = value.hasOwnProperty("name");
|
|
const name = (hasName && value.name) || "(anonymous)";
|
|
let base = `class ${name}`;
|
|
if (constructor !== "Function" && constructor !== null) {
|
|
base += ` [${constructor}]`;
|
|
}
|
|
if (tag !== "" && constructor !== tag) {
|
|
base += ` [${tag}]`;
|
|
}
|
|
if (constructor !== null) {
|
|
const superName = Object.getPrototypeOf(value).name;
|
|
if (superName) {
|
|
base += ` extends ${superName}`;
|
|
}
|
|
} else {
|
|
base += " extends [null prototype]";
|
|
}
|
|
return `[${base}]`;
|
|
}
|
|
|
|
function reduceToSingleString(
|
|
ctx,
|
|
output,
|
|
base,
|
|
braces,
|
|
extrasType,
|
|
recurseTimes,
|
|
value,
|
|
) {
|
|
if (ctx.compact !== true) {
|
|
if (typeof ctx.compact === "number" && ctx.compact >= 1) {
|
|
// Memorize the original output length. In case the output is grouped,
|
|
// prevent lining up the entries on a single line.
|
|
const entries = output.length;
|
|
// Group array elements together if the array contains at least six
|
|
// separate entries.
|
|
if (extrasType === kArrayExtrasType && entries > 6) {
|
|
output = groupArrayElements(ctx, output, value);
|
|
}
|
|
// `ctx.currentDepth` is set to the most inner depth of the currently
|
|
// inspected object part while `recurseTimes` is the actual current depth
|
|
// that is inspected.
|
|
//
|
|
// Example:
|
|
//
|
|
// const a = { first: [ 1, 2, 3 ], second: { inner: [ 1, 2, 3 ] } }
|
|
//
|
|
// The deepest depth of `a` is 2 (a.second.inner) and `a.first` has a max
|
|
// depth of 1.
|
|
//
|
|
// Consolidate all entries of the local most inner depth up to
|
|
// `ctx.compact`, as long as the properties are smaller than
|
|
// `ctx.breakLength`.
|
|
if (
|
|
ctx.currentDepth - recurseTimes < ctx.compact &&
|
|
entries === output.length
|
|
) {
|
|
// Line up all entries on a single line in case the entries do not
|
|
// exceed `breakLength`. Add 10 as constant to start next to all other
|
|
// factors that may reduce `breakLength`.
|
|
const start = output.length + ctx.indentationLvl +
|
|
braces[0].length + base.length + 10;
|
|
if (isBelowBreakLength(ctx, output, start, base)) {
|
|
return `${base ? `${base} ` : ""}${braces[0]} ${join(output, ", ")}` +
|
|
` ${braces[1]}`;
|
|
}
|
|
}
|
|
}
|
|
// Line up each entry on an individual line.
|
|
const indentation = `\n${" ".repeat(ctx.indentationLvl)}`;
|
|
return `${base ? `${base} ` : ""}${braces[0]}${indentation} ` +
|
|
`${join(output, `,${indentation} `)}${indentation}${braces[1]}`;
|
|
}
|
|
// Line up all entries on a single line in case the entries do not exceed
|
|
// `breakLength`.
|
|
if (isBelowBreakLength(ctx, output, 0, base)) {
|
|
return `${braces[0]}${base ? ` ${base}` : ""} ${join(output, ", ")} ` +
|
|
braces[1];
|
|
}
|
|
const indentation = " ".repeat(ctx.indentationLvl);
|
|
// If the opening "brace" is too large, like in the case of "Set {",
|
|
// we need to force the first item to be on the next line or the
|
|
// items will not line up correctly.
|
|
const ln = base === "" && braces[0].length === 1
|
|
? " "
|
|
: `${base ? ` ${base}` : ""}\n${indentation} `;
|
|
// Line up each entry on an individual line.
|
|
return `${braces[0]}${ln}${join(output, `,\n${indentation} `)} ${braces[1]}`;
|
|
}
|
|
|
|
// The built-in Array#join is slower in v8 6.0
|
|
function join(output, separator) {
|
|
let str = "";
|
|
if (output.length !== 0) {
|
|
const lastIndex = output.length - 1;
|
|
for (let i = 0; i < lastIndex; i++) {
|
|
// It is faster not to use a template string here
|
|
str += output[i];
|
|
str += separator;
|
|
}
|
|
str += output[lastIndex];
|
|
}
|
|
return str;
|
|
}
|
|
|
|
function groupArrayElements(ctx, output, value) {
|
|
let totalLength = 0;
|
|
let maxLength = 0;
|
|
let i = 0;
|
|
let outputLength = output.length;
|
|
if (ctx.maxArrayLength < output.length) {
|
|
// This makes sure the "... n more items" part is not taken into account.
|
|
outputLength--;
|
|
}
|
|
const separatorSpace = 2; // Add 1 for the space and 1 for the separator.
|
|
const dataLen = new Array(outputLength);
|
|
// Calculate the total length of all output entries and the individual max
|
|
// entries length of all output entries. We have to remove colors first,
|
|
// otherwise the length would not be calculated properly.
|
|
for (; i < outputLength; i++) {
|
|
const len = getStringWidth(output[i], ctx.colors);
|
|
dataLen[i] = len;
|
|
totalLength += len + separatorSpace;
|
|
if (maxLength < len) {
|
|
maxLength = len;
|
|
}
|
|
}
|
|
// Add two to `maxLength` as we add a single whitespace character plus a comma
|
|
// in-between two entries.
|
|
const actualMax = maxLength + separatorSpace;
|
|
// Check if at least three entries fit next to each other and prevent grouping
|
|
// of arrays that contains entries of very different length (i.e., if a single
|
|
// entry is longer than 1/5 of all other entries combined). Otherwise the
|
|
// space in-between small entries would be enormous.
|
|
if (
|
|
actualMax * 3 + ctx.indentationLvl < ctx.breakLength &&
|
|
(totalLength / actualMax > 5 || maxLength <= 6)
|
|
) {
|
|
const approxCharHeights = 2.5;
|
|
const averageBias = Math.sqrt(actualMax - totalLength / output.length);
|
|
const biasedMax = Math.max(actualMax - 3 - averageBias, 1);
|
|
// Dynamically check how many columns seem possible.
|
|
const columns = Math.min(
|
|
// Ideally a square should be drawn. We expect a character to be about 2.5
|
|
// times as high as wide. This is the area formula to calculate a square
|
|
// which contains n rectangles of size `actualMax * approxCharHeights`.
|
|
// Divide that by `actualMax` to receive the correct number of columns.
|
|
// The added bias increases the columns for short entries.
|
|
Math.round(
|
|
Math.sqrt(
|
|
approxCharHeights * biasedMax * outputLength,
|
|
) / biasedMax,
|
|
),
|
|
// Do not exceed the breakLength.
|
|
Math.floor((ctx.breakLength - ctx.indentationLvl) / actualMax),
|
|
// Limit array grouping for small `compact` modes as the user requested
|
|
// minimal grouping.
|
|
ctx.compact * 4,
|
|
// Limit the columns to a maximum of fifteen.
|
|
15,
|
|
);
|
|
// Return with the original output if no grouping should happen.
|
|
if (columns <= 1) {
|
|
return output;
|
|
}
|
|
const tmp = [];
|
|
const maxLineLength = [];
|
|
for (let i = 0; i < columns; i++) {
|
|
let lineMaxLength = 0;
|
|
for (let j = i; j < output.length; j += columns) {
|
|
if (dataLen[j] > lineMaxLength) {
|
|
lineMaxLength = dataLen[j];
|
|
}
|
|
}
|
|
lineMaxLength += separatorSpace;
|
|
maxLineLength[i] = lineMaxLength;
|
|
}
|
|
let order = String.prototype.padStart;
|
|
if (value !== undefined) {
|
|
for (let i = 0; i < output.length; i++) {
|
|
if (typeof value[i] !== "number" && typeof value[i] !== "bigint") {
|
|
order = String.prototype.padEnd;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// Each iteration creates a single line of grouped entries.
|
|
for (let i = 0; i < outputLength; i += columns) {
|
|
// The last lines may contain less entries than columns.
|
|
const max = Math.min(i + columns, outputLength);
|
|
let str = "";
|
|
let j = i;
|
|
for (; j < max - 1; j++) {
|
|
// Calculate extra color padding in case it's active. This has to be
|
|
// done line by line as some lines might contain more colors than
|
|
// others.
|
|
const padding = maxLineLength[j - i] + output[j].length - dataLen[j];
|
|
str += `${output[j]}, `.padStart(padding, " ");
|
|
}
|
|
if (order === String.prototype.padStart) {
|
|
const padding = maxLineLength[j - i] +
|
|
output[j].length -
|
|
dataLen[j] -
|
|
separatorSpace;
|
|
str += output[j].padStart(padding, " ");
|
|
} else {
|
|
str += output[j];
|
|
}
|
|
Array.prototype.push.call(tmp, str);
|
|
}
|
|
if (ctx.maxArrayLength < output.length) {
|
|
Array.prototype.push.call(tmp, output[outputLength]);
|
|
}
|
|
output = tmp;
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function formatMapIterInner(
|
|
ctx,
|
|
recurseTimes,
|
|
entries,
|
|
state,
|
|
) {
|
|
const maxArrayLength = Math.max(ctx.maxArrayLength, 0);
|
|
// Entries exist as [key1, val1, key2, val2, ...]
|
|
const len = entries.length / 2;
|
|
const remaining = len - maxArrayLength;
|
|
const maxLength = Math.min(maxArrayLength, len);
|
|
let output = new Array(maxLength);
|
|
let i = 0;
|
|
ctx.indentationLvl += 2;
|
|
if (state === kWeak) {
|
|
for (; i < maxLength; i++) {
|
|
const pos = i * 2;
|
|
output[i] = `${formatValue(ctx, entries[pos], recurseTimes)} => ${
|
|
formatValue(ctx, entries[pos + 1], recurseTimes)
|
|
}`;
|
|
}
|
|
// Sort all entries to have a halfway reliable output (if more entries than
|
|
// retrieved ones exist, we can not reliably return the same output) if the
|
|
// output is not sorted anyway.
|
|
if (!ctx.sorted) {
|
|
output = output.sort();
|
|
}
|
|
} else {
|
|
for (; i < maxLength; i++) {
|
|
const pos = i * 2;
|
|
const res = [
|
|
formatValue(ctx, entries[pos], recurseTimes),
|
|
formatValue(ctx, entries[pos + 1], recurseTimes),
|
|
];
|
|
output[i] = reduceToSingleString(
|
|
ctx,
|
|
res,
|
|
"",
|
|
["[", "]"],
|
|
kArrayExtrasType,
|
|
recurseTimes,
|
|
);
|
|
}
|
|
}
|
|
ctx.indentationLvl -= 2;
|
|
if (remaining > 0) {
|
|
output.push(`... ${remaining} more item${remaining > 1 ? "s" : ""}`);
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function formatSetIterInner(
|
|
ctx,
|
|
recurseTimes,
|
|
entries,
|
|
state,
|
|
) {
|
|
const maxArrayLength = Math.max(ctx.maxArrayLength, 0);
|
|
const maxLength = Math.min(maxArrayLength, entries.length);
|
|
const output = new Array(maxLength);
|
|
ctx.indentationLvl += 2;
|
|
for (let i = 0; i < maxLength; i++) {
|
|
output[i] = formatValue(ctx, entries[i], recurseTimes);
|
|
}
|
|
ctx.indentationLvl -= 2;
|
|
if (state === kWeak && !ctx.sorted) {
|
|
// Sort all entries to have a halfway reliable output (if more entries than
|
|
// retrieved ones exist, we can not reliably return the same output) if the
|
|
// output is not sorted anyway.
|
|
output.sort();
|
|
}
|
|
const remaining = entries.length - maxLength;
|
|
if (remaining > 0) {
|
|
Array.prototype.push.call(
|
|
output,
|
|
`... ${remaining} more item${remaining > 1 ? "s" : ""}`,
|
|
);
|
|
}
|
|
return output;
|
|
}
|
|
|
|
// Regex used for ansi escape code splitting
|
|
// Adopted from https://github.com/chalk/ansi-regex/blob/HEAD/index.js
|
|
// License: MIT, authors: @sindresorhus, Qix-, arjunmehta and LitoMore
|
|
// Matches all ansi escape code sequences in a string
|
|
const ansiPattern = "[\\u001B\\u009B][[\\]()#;?]*" +
|
|
"(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*" +
|
|
"|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)" +
|
|
"|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))";
|
|
const ansi = new RegExp(ansiPattern, "g");
|
|
|
|
/**
|
|
* Returns the number of columns required to display the given string.
|
|
*/
|
|
export function getStringWidth(str, removeControlChars = true) {
|
|
let width = 0;
|
|
|
|
if (removeControlChars) {
|
|
str = stripVTControlCharacters(str);
|
|
}
|
|
str = str.normalize("NFC");
|
|
for (const char of str[Symbol.iterator]()) {
|
|
const code = char.codePointAt(0);
|
|
if (isFullWidthCodePoint(code)) {
|
|
width += 2;
|
|
} else if (!isZeroWidthCodePoint(code)) {
|
|
width++;
|
|
}
|
|
}
|
|
|
|
return width;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the character represented by a given
|
|
* Unicode code point is full-width. Otherwise returns false.
|
|
*/
|
|
const isFullWidthCodePoint = (code) => {
|
|
// Code points are partially derived from:
|
|
// https://www.unicode.org/Public/UNIDATA/EastAsianWidth.txt
|
|
return code >= 0x1100 && (
|
|
code <= 0x115f || // Hangul Jamo
|
|
code === 0x2329 || // LEFT-POINTING ANGLE BRACKET
|
|
code === 0x232a || // RIGHT-POINTING ANGLE BRACKET
|
|
// CJK Radicals Supplement .. Enclosed CJK Letters and Months
|
|
(code >= 0x2e80 && code <= 0x3247 && code !== 0x303f) ||
|
|
// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
|
|
(code >= 0x3250 && code <= 0x4dbf) ||
|
|
// CJK Unified Ideographs .. Yi Radicals
|
|
(code >= 0x4e00 && code <= 0xa4c6) ||
|
|
// Hangul Jamo Extended-A
|
|
(code >= 0xa960 && code <= 0xa97c) ||
|
|
// Hangul Syllables
|
|
(code >= 0xac00 && code <= 0xd7a3) ||
|
|
// CJK Compatibility Ideographs
|
|
(code >= 0xf900 && code <= 0xfaff) ||
|
|
// Vertical Forms
|
|
(code >= 0xfe10 && code <= 0xfe19) ||
|
|
// CJK Compatibility Forms .. Small Form Variants
|
|
(code >= 0xfe30 && code <= 0xfe6b) ||
|
|
// Halfwidth and Fullwidth Forms
|
|
(code >= 0xff01 && code <= 0xff60) ||
|
|
(code >= 0xffe0 && code <= 0xffe6) ||
|
|
// Kana Supplement
|
|
(code >= 0x1b000 && code <= 0x1b001) ||
|
|
// Enclosed Ideographic Supplement
|
|
(code >= 0x1f200 && code <= 0x1f251) ||
|
|
// Miscellaneous Symbols and Pictographs 0x1f300 - 0x1f5ff
|
|
// Emoticons 0x1f600 - 0x1f64f
|
|
(code >= 0x1f300 && code <= 0x1f64f) ||
|
|
// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
|
|
(code >= 0x20000 && code <= 0x3fffd)
|
|
);
|
|
};
|
|
|
|
const isZeroWidthCodePoint = (code) => {
|
|
return code <= 0x1F || // C0 control codes
|
|
(code >= 0x7F && code <= 0x9F) || // C1 control codes
|
|
(code >= 0x300 && code <= 0x36F) || // Combining Diacritical Marks
|
|
(code >= 0x200B && code <= 0x200F) || // Modifying Invisible Characters
|
|
// Combining Diacritical Marks for Symbols
|
|
(code >= 0x20D0 && code <= 0x20FF) ||
|
|
(code >= 0xFE00 && code <= 0xFE0F) || // Variation Selectors
|
|
(code >= 0xFE20 && code <= 0xFE2F) || // Combining Half Marks
|
|
(code >= 0xE0100 && code <= 0xE01EF); // Variation Selectors
|
|
};
|
|
|
|
function hasBuiltInToString(value) {
|
|
// TODO(wafuwafu13): Implement
|
|
// // Prevent triggering proxy traps.
|
|
// const getFullProxy = false;
|
|
// const proxyTarget = getProxyDetails(value, getFullProxy);
|
|
const proxyTarget = undefined;
|
|
if (proxyTarget !== undefined) {
|
|
value = proxyTarget;
|
|
}
|
|
|
|
// Count objects that have no `toString` function as built-in.
|
|
if (typeof value.toString !== "function") {
|
|
return true;
|
|
}
|
|
|
|
// The object has a own `toString` property. Thus it's not not a built-in one.
|
|
if (Object.prototype.hasOwnProperty.call(value, "toString")) {
|
|
return false;
|
|
}
|
|
|
|
// Find the object that has the `toString` property as own property in the
|
|
// prototype chain.
|
|
let pointer = value;
|
|
do {
|
|
pointer = Object.getPrototypeOf(pointer);
|
|
} while (!Object.prototype.hasOwnProperty.call(pointer, "toString"));
|
|
|
|
// Check closer if the object is a built-in.
|
|
const descriptor = Object.getOwnPropertyDescriptor(pointer, "constructor");
|
|
return descriptor !== undefined &&
|
|
typeof descriptor.value === "function" &&
|
|
builtInObjects.has(descriptor.value.name);
|
|
}
|
|
|
|
const firstErrorLine = (error) => error.message.split("\n", 1)[0];
|
|
let CIRCULAR_ERROR_MESSAGE;
|
|
function tryStringify(arg) {
|
|
try {
|
|
return JSON.stringify(arg);
|
|
} catch (err) {
|
|
// Populate the circular error message lazily
|
|
if (!CIRCULAR_ERROR_MESSAGE) {
|
|
try {
|
|
const a = {};
|
|
a.a = a;
|
|
JSON.stringify(a);
|
|
} catch (circularError) {
|
|
CIRCULAR_ERROR_MESSAGE = firstErrorLine(circularError);
|
|
}
|
|
}
|
|
if (
|
|
err.name === "TypeError" &&
|
|
firstErrorLine(err) === CIRCULAR_ERROR_MESSAGE
|
|
) {
|
|
return "[Circular]";
|
|
}
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
export function format(...args) {
|
|
return formatWithOptionsInternal(undefined, args);
|
|
}
|
|
|
|
export function formatWithOptions(inspectOptions, ...args) {
|
|
if (typeof inspectOptions !== "object" || inspectOptions === null) {
|
|
throw new codes.ERR_INVALID_ARG_TYPE(
|
|
"inspectOptions",
|
|
"object",
|
|
inspectOptions,
|
|
);
|
|
}
|
|
return formatWithOptionsInternal(inspectOptions, args);
|
|
}
|
|
|
|
function formatNumberNoColor(number, options) {
|
|
return formatNumber(
|
|
stylizeNoColor,
|
|
number,
|
|
options?.numericSeparator ?? inspectDefaultOptions.numericSeparator,
|
|
);
|
|
}
|
|
|
|
function formatBigIntNoColor(bigint, options) {
|
|
return formatBigInt(
|
|
stylizeNoColor,
|
|
bigint,
|
|
options?.numericSeparator ?? inspectDefaultOptions.numericSeparator,
|
|
);
|
|
}
|
|
|
|
function formatWithOptionsInternal(inspectOptions, args) {
|
|
const first = args[0];
|
|
let a = 0;
|
|
let str = "";
|
|
let join = "";
|
|
|
|
if (typeof first === "string") {
|
|
if (args.length === 1) {
|
|
return first;
|
|
}
|
|
let tempStr;
|
|
let lastPos = 0;
|
|
|
|
for (let i = 0; i < first.length - 1; i++) {
|
|
if (first.charCodeAt(i) === 37) { // '%'
|
|
const nextChar = first.charCodeAt(++i);
|
|
if (a + 1 !== args.length) {
|
|
switch (nextChar) {
|
|
// deno-lint-ignore no-case-declarations
|
|
case 115: // 's'
|
|
const tempArg = args[++a];
|
|
if (typeof tempArg === "number") {
|
|
tempStr = formatNumberNoColor(tempArg, inspectOptions);
|
|
} else if (typeof tempArg === "bigint") {
|
|
tempStr = formatBigIntNoColor(tempArg, inspectOptions);
|
|
} else if (
|
|
typeof tempArg !== "object" ||
|
|
tempArg === null ||
|
|
!hasBuiltInToString(tempArg)
|
|
) {
|
|
tempStr = String(tempArg);
|
|
} else {
|
|
tempStr = inspect(tempArg, {
|
|
...inspectOptions,
|
|
compact: 3,
|
|
colors: false,
|
|
depth: 0,
|
|
});
|
|
}
|
|
break;
|
|
case 106: // 'j'
|
|
tempStr = tryStringify(args[++a]);
|
|
break;
|
|
// deno-lint-ignore no-case-declarations
|
|
case 100: // 'd'
|
|
const tempNum = args[++a];
|
|
if (typeof tempNum === "bigint") {
|
|
tempStr = formatBigIntNoColor(tempNum, inspectOptions);
|
|
} else if (typeof tempNum === "symbol") {
|
|
tempStr = "NaN";
|
|
} else {
|
|
tempStr = formatNumberNoColor(Number(tempNum), inspectOptions);
|
|
}
|
|
break;
|
|
case 79: // 'O'
|
|
tempStr = inspect(args[++a], inspectOptions);
|
|
break;
|
|
case 111: // 'o'
|
|
tempStr = inspect(args[++a], {
|
|
...inspectOptions,
|
|
showHidden: true,
|
|
showProxy: true,
|
|
depth: 4,
|
|
});
|
|
break;
|
|
// deno-lint-ignore no-case-declarations
|
|
case 105: // 'i'
|
|
const tempInteger = args[++a];
|
|
if (typeof tempInteger === "bigint") {
|
|
tempStr = formatBigIntNoColor(tempInteger, inspectOptions);
|
|
} else if (typeof tempInteger === "symbol") {
|
|
tempStr = "NaN";
|
|
} else {
|
|
tempStr = formatNumberNoColor(
|
|
Number.parseInt(tempInteger),
|
|
inspectOptions,
|
|
);
|
|
}
|
|
break;
|
|
// deno-lint-ignore no-case-declarations
|
|
case 102: // 'f'
|
|
const tempFloat = args[++a];
|
|
if (typeof tempFloat === "symbol") {
|
|
tempStr = "NaN";
|
|
} else {
|
|
tempStr = formatNumberNoColor(
|
|
Number.parseFloat(tempFloat),
|
|
inspectOptions,
|
|
);
|
|
}
|
|
break;
|
|
case 99: // 'c'
|
|
a += 1;
|
|
tempStr = "";
|
|
break;
|
|
case 37: // '%'
|
|
str += first.slice(lastPos, i);
|
|
lastPos = i + 1;
|
|
continue;
|
|
default: // Any other character is not a correct placeholder
|
|
continue;
|
|
}
|
|
if (lastPos !== i - 1) {
|
|
str += first.slice(lastPos, i - 1);
|
|
}
|
|
str += tempStr;
|
|
lastPos = i + 1;
|
|
} else if (nextChar === 37) {
|
|
str += first.slice(lastPos, i);
|
|
lastPos = i + 1;
|
|
}
|
|
}
|
|
}
|
|
if (lastPos !== 0) {
|
|
a++;
|
|
join = " ";
|
|
if (lastPos < first.length) {
|
|
str += first.slice(lastPos);
|
|
}
|
|
}
|
|
}
|
|
|
|
while (a < args.length) {
|
|
const value = args[a];
|
|
str += join;
|
|
str += typeof value !== "string" ? inspect(value, inspectOptions) : value;
|
|
join = " ";
|
|
a++;
|
|
}
|
|
return str;
|
|
}
|
|
|
|
/**
|
|
* Remove all VT control characters. Use to estimate displayed string width.
|
|
*/
|
|
export function stripVTControlCharacters(str) {
|
|
validateString(str, "str");
|
|
|
|
return str.replace(ansi, "");
|
|
}
|
|
|
|
export default {
|
|
format,
|
|
getStringWidth,
|
|
inspect,
|
|
stripVTControlCharacters,
|
|
formatWithOptions,
|
|
};
|