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node_modules/lit-html/development/directive.js

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+/**
+ * @license
+ * Copyright 2017 Google LLC
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+export const PartType = {
+    ATTRIBUTE: 1,
+    CHILD: 2,
+    PROPERTY: 3,
+    BOOLEAN_ATTRIBUTE: 4,
+    EVENT: 5,
+    ELEMENT: 6,
+};
+/**
+ * Creates a user-facing directive function from a Directive class. This
+ * function has the same parameters as the directive's render() method.
+ */
+export const directive = (c) => (...values) => ({
+    // This property needs to remain unminified.
+    ['_$litDirective$']: c,
+    values,
+});
+/**
+ * Base class for creating custom directives. Users should extend this class,
+ * implement `render` and/or `update`, and then pass their subclass to
+ * `directive`.
+ */
+export class Directive {
+    constructor(_partInfo) { }
+    // See comment in Disconnectable interface for why this is a getter
+    get _$isConnected() {
+        return this._$parent._$isConnected;
+    }
+    /** @internal */
+    _$initialize(part, parent, attributeIndex) {
+        this.__part = part;
+        this._$parent = parent;
+        this.__attributeIndex = attributeIndex;
+    }
+    /** @internal */
+    _$resolve(part, props) {
+        return this.update(part, props);
+    }
+    update(_part, props) {
+        return this.render(...props);
+    }
+}
+//# sourceMappingURL=directive.js.map