更新

TongjiUniApp/node_modules/less/lib/less/tree/detached-ruleset.js

@@ -0,0 +1,45 @@
+// @ts-check
+/** @import { EvalContext, TreeVisitor } from './node.js' */
+import Node from './node.js';
+import contexts from '../contexts.js';
+import * as utils from '../utils.js';
+
+class DetachedRuleset extends Node {
+    get type() { return 'DetachedRuleset'; }
+
+    /**
+     * @param {Node} ruleset
+     * @param {Node[]} [frames]
+     */
+    constructor(ruleset, frames) {
+        super();
+        this.ruleset = ruleset;
+        this.frames = frames;
+        this.evalFirst = true;
+        this.setParent(this.ruleset, this);
+    }
+
+    /** @param {TreeVisitor} visitor */
+    accept(visitor) {
+        this.ruleset = visitor.visit(this.ruleset);
+    }
+
+    /**
+     * @param {EvalContext} context
+     * @returns {DetachedRuleset}
+     */
+    eval(context) {
+        const frames = this.frames || utils.copyArray(context.frames);
+        return new DetachedRuleset(this.ruleset, frames);
+    }
+
+    /**
+     * @param {EvalContext} context
+     * @returns {Node}
+     */
+    callEval(context) {
+        return this.ruleset.eval(this.frames ? new contexts.Eval(context, this.frames.concat(context.frames)) : context);
+    }
+}
+
+export default DetachedRuleset;