Last change
on this file since 6a80231 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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Property mode
set to
100644
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File size:
1.4 KB
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[6a3a178] | 1 | "use strict";
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.default = isNodesEquivalent;
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| 7 |
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| 8 | var _definitions = require("../definitions");
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| 9 |
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| 10 | function isNodesEquivalent(a, b) {
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| 11 | if (typeof a !== "object" || typeof b !== "object" || a == null || b == null) {
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| 12 | return a === b;
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| 13 | }
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| 14 |
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| 15 | if (a.type !== b.type) {
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| 16 | return false;
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| 17 | }
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| 18 |
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| 19 | const fields = Object.keys(_definitions.NODE_FIELDS[a.type] || a.type);
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| 20 | const visitorKeys = _definitions.VISITOR_KEYS[a.type];
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| 21 |
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| 22 | for (const field of fields) {
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| 23 | if (typeof a[field] !== typeof b[field]) {
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| 24 | return false;
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| 25 | }
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| 26 |
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| 27 | if (a[field] == null && b[field] == null) {
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| 28 | continue;
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| 29 | } else if (a[field] == null || b[field] == null) {
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| 30 | return false;
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| 31 | }
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| 32 |
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| 33 | if (Array.isArray(a[field])) {
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| 34 | if (!Array.isArray(b[field])) {
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| 35 | return false;
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| 36 | }
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| 37 |
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| 38 | if (a[field].length !== b[field].length) {
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| 39 | return false;
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| 40 | }
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| 41 |
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| 42 | for (let i = 0; i < a[field].length; i++) {
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| 43 | if (!isNodesEquivalent(a[field][i], b[field][i])) {
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| 44 | return false;
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| 45 | }
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| 46 | }
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| 47 |
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| 48 | continue;
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| 49 | }
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| 50 |
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| 51 | if (typeof a[field] === "object" && !(visitorKeys != null && visitorKeys.includes(field))) {
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| 52 | for (const key of Object.keys(a[field])) {
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| 53 | if (a[field][key] !== b[field][key]) {
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| 54 | return false;
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | continue;
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| 59 | }
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| 60 |
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| 61 | if (!isNodesEquivalent(a[field], b[field])) {
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| 62 | return false;
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | return true;
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| 67 | } |
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