69 lines
2.4 KiB
JavaScript
69 lines
2.4 KiB
JavaScript
import * as Hash from "./Hash.js";
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import { hasProperty } from "./Predicate.js";
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import { structuralRegionState } from "./Utils.js";
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/**
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* @since 2.0.0
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* @category symbols
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*/
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export const symbol = /*#__PURE__*/Symbol.for("effect/Equal");
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export function equals() {
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if (arguments.length === 1) {
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return self => compareBoth(self, arguments[0]);
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}
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return compareBoth(arguments[0], arguments[1]);
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}
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function compareBoth(self, that) {
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if (self === that) {
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return true;
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}
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const selfType = typeof self;
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if (selfType !== typeof that) {
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return false;
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}
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if (selfType === "object" || selfType === "function") {
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if (self !== null && that !== null) {
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if (isEqual(self) && isEqual(that)) {
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if (Hash.hash(self) === Hash.hash(that) && self[symbol](that)) {
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return true;
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} else {
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return structuralRegionState.enabled && structuralRegionState.tester ? structuralRegionState.tester(self, that) : false;
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}
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} else if (self instanceof Date && that instanceof Date) {
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return self.toISOString() === that.toISOString();
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} else if (self instanceof URL && that instanceof URL) {
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return self.href === that.href;
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}
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}
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if (structuralRegionState.enabled) {
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if (Array.isArray(self) && Array.isArray(that)) {
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return self.length === that.length && self.every((v, i) => compareBoth(v, that[i]));
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}
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if (Object.getPrototypeOf(self) === Object.prototype && Object.getPrototypeOf(self) === Object.prototype) {
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const keysSelf = Object.keys(self);
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const keysThat = Object.keys(that);
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if (keysSelf.length === keysThat.length) {
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for (const key of keysSelf) {
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// @ts-expect-error
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if (!(key in that && compareBoth(self[key], that[key]))) {
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return structuralRegionState.tester ? structuralRegionState.tester(self, that) : false;
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}
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}
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return true;
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}
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}
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return structuralRegionState.tester ? structuralRegionState.tester(self, that) : false;
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}
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}
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return structuralRegionState.enabled && structuralRegionState.tester ? structuralRegionState.tester(self, that) : false;
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}
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/**
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* @since 2.0.0
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* @category guards
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*/
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export const isEqual = u => hasProperty(u, symbol);
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/**
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* @since 2.0.0
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* @category instances
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*/
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export const equivalence = () => equals;
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//# sourceMappingURL=Equal.js.map
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