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_internal/editor/esm/vs/base/common/hotReloadHelpers.js

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+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+import { isHotReloadEnabled, registerHotReloadHandler } from './hotReload.js';
+import { constObservable, observableSignalFromEvent, observableValue } from './observable.js';
+export function readHotReloadableExport(value, reader) {
+    observeHotReloadableExports([value], reader);
+    return value;
+}
+export function observeHotReloadableExports(values, reader) {
+    if (isHotReloadEnabled()) {
+        const o = observableSignalFromEvent('reload', event => registerHotReloadHandler(({ oldExports }) => {
+            if (![...Object.values(oldExports)].some(v => values.includes(v))) {
+                return undefined;
+            }
+            return (_newExports) => {
+                event(undefined);
+                return true;
+            };
+        }));
+        o.read(reader);
+    }
+}
+const classes = new Map();
+export function createHotClass(clazz) {
+    if (!isHotReloadEnabled()) {
+        return constObservable(clazz);
+    }
+    const id = clazz.name;
+    let existing = classes.get(id);
+    if (!existing) {
+        existing = observableValue(id, clazz);
+        classes.set(id, existing);
+    }
+    else {
+        setTimeout(() => {
+            existing.set(clazz, undefined);
+        }, 0);
+    }
+    return existing;
+}
+//# sourceMappingURL=hotReloadHelpers.js.map