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// GENERATED, DO NOT EDIT
// file: deepEqual.js
// Copyright 2019 Ron Buckton. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Compare two values structurally
defines: [assert.deepEqual]
---*/
assert.deepEqual = function(actual, expected, message) {
var format = assert.deepEqual.format;
assert(
assert.deepEqual._compare(actual, expected),
`Expected ${format(actual)} to be structurally equal to ${format(expected)}. ${(message || '')}`
);
};
assert.deepEqual.format = function(value, seen) {
switch (typeof value) {
case 'string':
return typeof JSON !== "undefined" ? JSON.stringify(value) : `"${value}"`;
case 'number':
case 'boolean':
case 'symbol':
case 'bigint':
return value.toString();
case 'undefined':
return 'undefined';
case 'function':
return `[Function${value.name ? `: ${value.name}` : ''}]`;
case 'object':
if (value === null) return 'null';
if (value instanceof Date) return `Date "${value.toISOString()}"`;
if (value instanceof RegExp) return value.toString();
if (!seen) {
seen = {
counter: 0,
map: new Map()
};
}
let usage = seen.map.get(value);
if (usage) {
usage.used = true;
return `[Ref: #${usage.id}]`;
}
usage = { id: ++seen.counter, used: false };
seen.map.set(value, usage);
if (typeof Set !== "undefined" && value instanceof Set) {
return `Set {${Array.from(value).map(value => assert.deepEqual.format(value, seen)).join(', ')}}${usage.used ? ` as #${usage.id}` : ''}`;
}
if (typeof Map !== "undefined" && value instanceof Map) {
return `Map {${Array.from(value).map(pair => `${assert.deepEqual.format(pair[0], seen)} => ${assert.deepEqual.format(pair[1], seen)}}`).join(', ')}}${usage.used ? ` as #${usage.id}` : ''}`;
}
if (Array.isArray ? Array.isArray(value) : value instanceof Array) {
return `[${value.map(value => assert.deepEqual.format(value, seen)).join(', ')}]${usage.used ? ` as #${usage.id}` : ''}`;
}
let tag = Symbol.toStringTag in value ? value[Symbol.toStringTag] : 'Object';
if (tag === 'Object' && Object.getPrototypeOf(value) === null) {
tag = '[Object: null prototype]';
}
return `${tag ? `${tag} ` : ''}{ ${Object.keys(value).map(key => `${key.toString()}: ${assert.deepEqual.format(value[key], seen)}`).join(', ')} }${usage.used ? ` as #${usage.id}` : ''}`;
default:
return typeof value;
}
};
assert.deepEqual._compare = (function () {
var EQUAL = 1;
var NOT_EQUAL = -1;
var UNKNOWN = 0;
function deepEqual(a, b) {
return compareEquality(a, b) === EQUAL;
}
function compareEquality(a, b, cache) {
return compareIf(a, b, isOptional, compareOptionality)
|| compareIf(a, b, isPrimitiveEquatable, comparePrimitiveEquality)
|| compareIf(a, b, isObjectEquatable, compareObjectEquality, cache)
|| NOT_EQUAL;
}
function compareIf(a, b, test, compare, cache) {
return !test(a)
? !test(b) ? UNKNOWN : NOT_EQUAL
: !test(b) ? NOT_EQUAL : cacheComparison(a, b, compare, cache);
}
function tryCompareStrictEquality(a, b) {
return a === b ? EQUAL : UNKNOWN;
}
function tryCompareTypeOfEquality(a, b) {
return typeof a !== typeof b ? NOT_EQUAL : UNKNOWN;
}
function tryCompareToStringTagEquality(a, b) {
var aTag = Symbol.toStringTag in a ? a[Symbol.toStringTag] : undefined;
var bTag = Symbol.toStringTag in b ? b[Symbol.toStringTag] : undefined;
return aTag !== bTag ? NOT_EQUAL : UNKNOWN;
}
function isOptional(value) {
return value === undefined
|| value === null;
}
function compareOptionality(a, b) {
return tryCompareStrictEquality(a, b)
|| NOT_EQUAL;
}
function isPrimitiveEquatable(value) {
switch (typeof value) {
case 'string':
case 'number':
case 'bigint':
case 'boolean':
case 'symbol':
return true;
default:
return isBoxed(value);
}
}
function comparePrimitiveEquality(a, b) {
if (isBoxed(a)) a = a.valueOf();
if (isBoxed(b)) b = b.valueOf();
return tryCompareStrictEquality(a, b)
|| tryCompareTypeOfEquality(a, b)
|| compareIf(a, b, isNaNEquatable, compareNaNEquality)
|| NOT_EQUAL;
}
function isNaNEquatable(value) {
return typeof value === 'number';
}
function compareNaNEquality(a, b) {
return isNaN(a) && isNaN(b) ? EQUAL : NOT_EQUAL;
}
function isObjectEquatable(value) {
return typeof value === 'object';
}
function compareObjectEquality(a, b, cache) {
if (!cache) cache = new Map();
return getCache(cache, a, b)
|| setCache(cache, a, b, EQUAL) // consider equal for now
|| cacheComparison(a, b, tryCompareStrictEquality, cache)
|| cacheComparison(a, b, tryCompareToStringTagEquality, cache)
|| compareIf(a, b, isValueOfEquatable, compareValueOfEquality)
|| compareIf(a, b, isToStringEquatable, compareToStringEquality)
|| compareIf(a, b, isArrayLikeEquatable, compareArrayLikeEquality, cache)
|| compareIf(a, b, isStructurallyEquatable, compareStructuralEquality, cache)
|| compareIf(a, b, isIterableEquatable, compareIterableEquality, cache)
|| cacheComparison(a, b, fail, cache);
}
function isBoxed(value) {
return value instanceof String
|| value instanceof Number
|| value instanceof Boolean
|| typeof Symbol === 'function' && value instanceof Symbol
|| typeof BigInt === 'function' && value instanceof BigInt;
}
function isValueOfEquatable(value) {
return value instanceof Date;
}
function compareValueOfEquality(a, b) {
return compareIf(a.valueOf(), b.valueOf(), isPrimitiveEquatable, comparePrimitiveEquality)
|| NOT_EQUAL;
}
function isToStringEquatable(value) {
return value instanceof RegExp;
}
function compareToStringEquality(a, b) {
return compareIf(a.toString(), b.toString(), isPrimitiveEquatable, comparePrimitiveEquality)
|| NOT_EQUAL;
}
function isArrayLikeEquatable(value) {
return (Array.isArray ? Array.isArray(value) : value instanceof Array)
|| (typeof Uint8Array === 'function' && value instanceof Uint8Array)
|| (typeof Uint8ClampedArray === 'function' && value instanceof Uint8ClampedArray)
|| (typeof Uint16Array === 'function' && value instanceof Uint16Array)
|| (typeof Uint32Array === 'function' && value instanceof Uint32Array)
|| (typeof Int8Array === 'function' && value instanceof Int8Array)
|| (typeof Int16Array === 'function' && value instanceof Int16Array)
|| (typeof Int32Array === 'function' && value instanceof Int32Array)
|| (typeof Float32Array === 'function' && value instanceof Float32Array)
|| (typeof Float64Array === 'function' && value instanceof Float64Array)
|| (typeof BigUint64Array === 'function' && value instanceof BigUint64Array)
|| (typeof BigInt64Array === 'function' && value instanceof BigInt64Array);
}
function compareArrayLikeEquality(a, b, cache) {
if (a.length !== b.length) return NOT_EQUAL;
for (var i = 0; i < a.length; i++) {
if (compareEquality(a[i], b[i], cache) === NOT_EQUAL) {
return NOT_EQUAL;
}
}
return EQUAL;
}
function isStructurallyEquatable(value) {
return !(typeof Promise === 'function' && value instanceof Promise // only comparable by reference
|| typeof WeakMap === 'function' && value instanceof WeakMap // only comparable by reference
|| typeof WeakSet === 'function' && value instanceof WeakSet // only comparable by reference
|| typeof Map === 'function' && value instanceof Map // comparable via @@iterator
|| typeof Set === 'function' && value instanceof Set); // comparable via @@iterator
}
function compareStructuralEquality(a, b, cache) {
var aKeys = [];
for (var key in a) aKeys.push(key);
var bKeys = [];
for (var key in b) bKeys.push(key);
if (aKeys.length !== bKeys.length) {
return NOT_EQUAL;
}
aKeys.sort();
bKeys.sort();
for (var i = 0; i < aKeys.length; i++) {
var aKey = aKeys[i];
var bKey = bKeys[i];
if (compareEquality(aKey, bKey, cache) === NOT_EQUAL) {
return NOT_EQUAL;
}
if (compareEquality(a[aKey], b[bKey], cache) === NOT_EQUAL) {
return NOT_EQUAL;
}
}
return compareIf(a, b, isIterableEquatable, compareIterableEquality, cache)
|| EQUAL;
}
function isIterableEquatable(value) {
return typeof Symbol === 'function'
&& typeof value[Symbol.iterator] === 'function';
}
function compareIteratorEquality(a, b, cache) {
if (typeof Map === 'function' && a instanceof Map && b instanceof Map ||
typeof Set === 'function' && a instanceof Set && b instanceof Set) {
if (a.size !== b.size) return NOT_EQUAL; // exit early if we detect a difference in size
}
var ar, br;
while (true) {
ar = a.next();
br = b.next();
if (ar.done) {
if (br.done) return EQUAL;
if (b.return) b.return();
return NOT_EQUAL;
}
if (br.done) {
if (a.return) a.return();
return NOT_EQUAL;
}
if (compareEquality(ar.value, br.value, cache) === NOT_EQUAL) {
if (a.return) a.return();
if (b.return) b.return();
return NOT_EQUAL;
}
}
}
function compareIterableEquality(a, b, cache) {
return compareIteratorEquality(a[Symbol.iterator](), b[Symbol.iterator](), cache);
}
function cacheComparison(a, b, compare, cache) {
var result = compare(a, b, cache);
if (cache && (result === EQUAL || result === NOT_EQUAL)) {
setCache(cache, a, b, /** @type {EQUAL | NOT_EQUAL} */(result));
}
return result;
}
function fail() {
return NOT_EQUAL;
}
function setCache(cache, left, right, result) {
var otherCache;
otherCache = cache.get(left);
if (!otherCache) cache.set(left, otherCache = new Map());
otherCache.set(right, result);
otherCache = cache.get(right);
if (!otherCache) cache.set(right, otherCache = new Map());
otherCache.set(left, result);
}
function getCache(cache, left, right) {
var otherCache;
var result;
otherCache = cache.get(left);
result = otherCache && otherCache.get(right);
if (result) return result;
otherCache = cache.get(right);
result = otherCache && otherCache.get(left);
if (result) return result;
return UNKNOWN;
}
return deepEqual;
})();