vue hello world项目
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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;