Support stripping enums

Author: EraYaN

packages/protoc-gen-ng/src/output/types/enum.ts

@@ -1,6 +1,6 @@
 import { Proto } from '../../input/proto';
 import { ProtoEnum } from '../../input/proto-enum';
-import { classify, preserveCaseSafe } from '../../utils';
+import { classify, preserveCaseSafe, pascalize } from '../../utils';
 import { Printer } from '../misc/printer';
 
 export class Enum {
@@ -11,8 +11,18 @@ export class Enum {
   ) { }
 
   print(printer: Printer) {
+    let enumName = pascalize(this.protoEnum.name)+"_";
+
+    function process(v: {name: string, number: number}) {
+      if (v.name.startsWith(enumName)) {
+        v.name = v.name.substring(enumName.length);
+      }
+
+      return `${preserveCaseSafe(v.name)} = ${v.number}`
+    }
+
     printer.add(`export enum ${classify(this.protoEnum.name)} {
-      ${this.protoEnum.valueList.map(v => `${preserveCaseSafe(v.name)} = ${v.number}`).join(',')}
+      ${this.protoEnum.valueList.map(process).join(',')}
     }`);
   }