live-elements-web-server: Added PublicError.

Author: dinusv

packages/live-elements-web-server/shared/errors/errors.mjs

@@ -1,4 +1,5 @@
 import CSSError from "./css-error.mjs";
+import PublicError from "./public-error.mjs";
 import SourceError from "./source-error.mjs";
 import StandardError from "./standard-error.mjs";
 import TraceError from "./trace-error.mjs";
@@ -11,5 +12,6 @@ export default [
     CSSError,
     SourceError,
     TraceError,
-    WorkerError
+    WorkerError,
+    PublicError
 ]

packages/live-elements-web-server/shared/errors/public-error.mjs

@@ -0,0 +1,31 @@
+import StandardError from "./standard-error.mjs"
+
+export default class PublicError extends StandardError{
+    constructor(message, internal){
+        super(message)
+        this._internal = internal
+        this.name = this.constructor.name
+    }
+
+    get internal(){ return this._internal }
+
+    toJSON(){
+        return super.toJSON(['message'])
+    }
+
+    static mask(error, message){
+        if ( error instanceof PublicError ){
+            return error
+        } else {
+             return new PublicError(message, error)
+        }
+    }
+
+    static fromInternal(error){
+        return new PublicError(error.message, error)
+    }
+
+    static fromJSON(json) {
+        return StandardError.__fromJSON(json, PublicError)
+    }
+}