src/jumbf/UUIDBox.ts

src/jumbf/UUIDBox.ts

@@ -1,16 +1,13 @@
 import * as bin from 'typed-binary';
 import { BinaryHelper } from '../util';
 import { Box } from './Box';
+import { BoxSchema } from './BoxSchema';
 import * as schemata from './schemata';
 
-class UUIDBoxSchema extends bin.Schema<UUIDBox> {
-    readonly length = schemata.length;
-    readonly type = schemata.type;
+class UUIDBoxSchema extends BoxSchema<UUIDBox> {
     readonly uuid = schemata.uuid;
 
-    read(input: bin.ISerialInput): UUIDBox {
-        const length = this.length.read(input);
-        const type = this.type.read(input);
+    readContent(input: bin.ISerialInput, type: string, length: number): UUIDBox {
         if (type != UUIDBox.typeCode) throw new Error(`UUIDBox: Unexpected type ${type}`);
 
         const uuid = this.uuid.read(input);
@@ -26,20 +23,13 @@ class UUIDBoxSchema extends bin.Schema<UUIDBox> {
         return box;
     }
 
-    write(output: bin.ISerialOutput, value: UUIDBox): void {
-        this.length.write(output, this.measure(value).size);
-        this.type.write(output, value.type);
+    writeContent(output: bin.ISerialOutput, value: UUIDBox): void {
         this.uuid.write(output, value.uuid);
         value.content?.forEach(byte => output.writeByte(byte));
     }
 
-    measure(value: UUIDBox, measurer: bin.IMeasurer = new bin.Measurer()): bin.IMeasurer {
-        return measurer.add(
-            4 + // length
-                4 + // type
-                this.uuid.measure(value.uuid).size +
-                (value.content ? value.content.length : 0),
-        );
+    measureContent(value: UUIDBox, measurer: bin.IMeasurer): bin.IMeasurer {
+        return measurer.add(this.uuid.measure(value.uuid).size + (value.content ? value.content.length : 0));
     }
 }