前端初始化

node_modules/element-plus/lib/components/slot/src/only-child.js

@@ -0,0 +1,53 @@
+require("../../../_virtual/_rolldown/runtime.js");
+const require_error = require("../../../utils/error.js");
+const require_index = require("../../../hooks/use-namespace/index.js");
+const require_index$1 = require("../../../hooks/use-forward-ref/index.js");
+let vue = require("vue");
+let _vue_shared = require("@vue/shared");
+//#region ../../packages/components/slot/src/only-child.tsx
+const NAME = "ElOnlyChild";
+const OnlyChild = /* @__PURE__ */ (0, vue.defineComponent)({
+	name: NAME,
+	setup(_, { slots, attrs }) {
+		const forwardRefDirective = require_index$1.useForwardRefDirective((0, vue.inject)(require_index$1.FORWARD_REF_INJECTION_KEY)?.setForwardRef ?? _vue_shared.NOOP);
+		return () => {
+			const defaultSlot = slots.default?.(attrs);
+			if (!defaultSlot) return null;
+			const [firstLegitNode, length] = findFirstLegitChild(defaultSlot);
+			if (!firstLegitNode) {
+				require_error.debugWarn(NAME, "no valid child node found");
+				return null;
+			}
+			if (length > 1) require_error.debugWarn(NAME, "requires exact only one valid child.");
+			return (0, vue.withDirectives)((0, vue.cloneVNode)(firstLegitNode, attrs), [[forwardRefDirective]]);
+		};
+	}
+});
+function findFirstLegitChild(node) {
+	if (!node) return [null, 0];
+	const children = node;
+	const len = children.filter((c) => c.type !== vue.Comment).length;
+	for (const child of children) {
+		/**
+		* when user uses h(Fragment, [text]) to render plain string,
+		* this switch case just cannot handle, when the value is primitives
+		* we should just return the wrapped string
+		*/
+		if ((0, _vue_shared.isObject)(child)) switch (child.type) {
+			case vue.Comment: continue;
+			case vue.Text:
+			case "svg": return [wrapTextContent(child), len];
+			case vue.Fragment: return findFirstLegitChild(child.children);
+			default: return [child, len];
+		}
+		return [wrapTextContent(child), len];
+	}
+	return [null, 0];
+}
+function wrapTextContent(s) {
+	return (0, vue.createVNode)("span", { "class": require_index.useNamespace("only-child").e("content") }, [s]);
+}
+//#endregion
+exports.OnlyChild = OnlyChild;
+
+//# sourceMappingURL=only-child.js.map