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node_modules/webpack/lib/rules/ObjectMatcherRulePlugin.js

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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 ObjectMatcherRulePlugin {
+	constructor(ruleProperty, dataProperty) {
+		this.ruleProperty = ruleProperty;
+		this.dataProperty = dataProperty || ruleProperty;
+	}
+
+	/**
+	 * @param {RuleSetCompiler} ruleSetCompiler the rule set compiler
+	 * @returns {void}
+	 */
+	apply(ruleSetCompiler) {
+		const { ruleProperty, dataProperty } = this;
+		ruleSetCompiler.hooks.rule.tap(
+			"ObjectMatcherRulePlugin",
+			(path, rule, unhandledProperties, result) => {
+				if (unhandledProperties.has(ruleProperty)) {
+					unhandledProperties.delete(ruleProperty);
+					const value = rule[ruleProperty];
+					for (const property of Object.keys(value)) {
+						const nestedDataProperties = property.split(".");
+						const condition = ruleSetCompiler.compileCondition(
+							`${path}.${ruleProperty}.${property}`,
+							value[property]
+						);
+						result.conditions.push({
+							property: [dataProperty, ...nestedDataProperties],
+							matchWhenEmpty: condition.matchWhenEmpty,
+							fn: condition.fn
+						});
+					}
+				}
+			}
+		);
+	}
+}
+
+module.exports = ObjectMatcherRulePlugin;