feat(logging): add Placeholder implementation (#3345)

Refs #3197
swagger-api · Oct 31, 2023 · 00febde · 00febde
1 parent ed60acc
commit 00febde
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diff --git a/packages/apidom-logging/src/Logger.ts b/packages/apidom-logging/src/Logger.ts
@@ -0,0 +1 @@
+export interface LoggerInstance {}
diff --git a/packages/apidom-logging/src/Placeholder.ts b/packages/apidom-logging/src/Placeholder.ts
@@ -0,0 +1,23 @@
+import type { LoggerInstance } from './Logger';
+
+type LoggerHierarchyInstance = LoggerInstance | PlaceholderInstance;
+
+export interface PlaceholderInstance {
+  readonly loggerMap: Map<LoggerHierarchyInstance, LoggerHierarchyInstance | null>;
+  append(logger: LoggerHierarchyInstance): void;
+}
+class Placeholder implements PlaceholderInstance {
+  public readonly loggerMap: Map<LoggerHierarchyInstance, LoggerHierarchyInstance | null>;
+
+  constructor(logger: LoggerHierarchyInstance) {
+    this.loggerMap = new Map([[logger, null]]);
+  }
+
+  public append(logger: LoggerHierarchyInstance): void {
+    if (!this.loggerMap.has(logger)) {
+      this.loggerMap.set(logger, null);
+    }
+  }
+}
+
+export default Placeholder;