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• [FILE] PatternMatcher.d.ts
• [FILE] PatternMatcher.d.ts.map
• [FILE] PatternMatcher.js

Просмотр файла: PatternMatcher.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PatternMatcher = void 0;
class PatternMatcher {
    match(node, pattern) {
        const vars = {};
        return this.matchNode(node, pattern, vars) ? vars : null;
    }
    matchNode(node, pattern, vars) {
        // Variable placeholder
        if (this.isPatternVar(pattern)) {
            const varName = pattern.$var;
            if (varName in vars) {
                return this.deepEqual(vars[varName], node);
            }
            vars[varName] = node;
            return true;
        }
        // Primitive values
        if (typeof node !== typeof pattern)
            return false;
        if (typeof node === 'string' || typeof node === 'number') {
            return node === pattern;
        }
        // Arrays
        if (Array.isArray(node) && Array.isArray(pattern)) {
            return node.length === pattern.length && node.every((item, i) => this.matchNode(item, pattern[i], vars));
        }
        // Objects
        if (typeof node === 'object' && typeof pattern === 'object' && node !== null && pattern !== null) {
            const nodeKeys = Object.keys(node);
            const patternKeys = Object.keys(pattern);
            return (nodeKeys.length === patternKeys.length &&
                nodeKeys.every((key) => patternKeys.includes(key) &&
                    this.matchNode(node[key], pattern[key], vars)));
        }
        return false;
    }
    isPatternVar(value) {
        return value !== null && typeof value === 'object' && '$var' in value;
    }
    deepEqual(a, b) {
        if (a === b)
            return true;
        if (typeof a !== typeof b)
            return false;
        if (Array.isArray(a) && Array.isArray(b)) {
            return a.length === b.length && a.every((item, i) => this.deepEqual(item, b[i]));
        }
        if (typeof a === 'object' && a !== null && typeof b === 'object' && b !== null) {
            const keysA = Object.keys(a);
            const keysB = Object.keys(b);
            return (keysA.length === keysB.length &&
                keysA.every((key) => this.deepEqual(a[key], b[key])));
        }
        return false;
    }
}
exports.PatternMatcher = PatternMatcher;
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