init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
/** @typedef {import("./RuleSetCompiler")} RuleSetCompiler */
/** @typedef {import("./RuleSetCompiler").RuleCondition} RuleCondition */
 
class BasicMatcherRulePlugin {
    constructor(ruleProperty, dataProperty, invert) {
        this.ruleProperty = ruleProperty;
        this.dataProperty = dataProperty || ruleProperty;
        this.invert = invert || false;
    }
 
    /**
     * @param {RuleSetCompiler} ruleSetCompiler the rule set compiler
     * @returns {void}
     */
    apply(ruleSetCompiler) {
        ruleSetCompiler.hooks.rule.tap(
            "BasicMatcherRulePlugin",
            (path, rule, unhandledProperties, result) => {
                if (unhandledProperties.has(this.ruleProperty)) {
                    unhandledProperties.delete(this.ruleProperty);
                    const value = rule[this.ruleProperty];
                    const condition = ruleSetCompiler.compileCondition(
                        `${path}.${this.ruleProperty}`,
                        value
                    );
                    const fn = condition.fn;
                    result.conditions.push({
                        property: this.dataProperty,
                        matchWhenEmpty: this.invert
                            ? !condition.matchWhenEmpty
                            : condition.matchWhenEmpty,
                        fn: this.invert ? v => !fn(v) : fn
                    });
                }
            }
        );
    }
}
 
module.exports = BasicMatcherRulePlugin;