From 16e042308594d53f437a44e01d29c7b39906011a Mon Sep 17 00:00:00 2001
From: Chuck Jazdzewski <chuckj@google.com>
Date: Mon, 20 Mar 2017 19:43:39 -0700
Subject: [PATCH] revert: feat(compiler-cli): support metadata file aliases
 (#15331)

This reverts commit 0ab49d4cec23e2957fd7e8dad55d15fc539c69ed.

PR Close #15331
---
 packages/compiler-cli/src/compiler_host.ts  | 6 +-----
 packages/compiler-cli/test/aot_host_spec.ts | 9 ---------
 2 files changed, 1 insertion(+), 14 deletions(-)

diff --git a/packages/compiler-cli/src/compiler_host.ts b/packages/compiler-cli/src/compiler_host.ts
index 904b53c818..b3def2a01a 100644
--- a/packages/compiler-cli/src/compiler_host.ts
+++ b/packages/compiler-cli/src/compiler_host.ts
@@ -207,11 +207,7 @@ export class CompilerHost implements AotCompilerHost {
       return metadatas;
     }
     try {
-      let metadataOrMetadatas = JSON.parse(this.context.readFile(filePath));
-      while (metadataOrMetadatas && metadataOrMetadatas.alias) {
-        filePath = path.join(path.dirname(filePath), metadataOrMetadatas.alias);
-        metadataOrMetadatas = JSON.parse(this.context.readFile(filePath));
-      }
+      const metadataOrMetadatas = JSON.parse(this.context.readFile(filePath));
       const metadatas: ModuleMetadata[] = metadataOrMetadatas ?
           (Array.isArray(metadataOrMetadatas) ? metadataOrMetadatas : [metadataOrMetadatas]) :
           [];
diff --git a/packages/compiler-cli/test/aot_host_spec.ts b/packages/compiler-cli/test/aot_host_spec.ts
index f88480ac97..aad08036c3 100644
--- a/packages/compiler-cli/test/aot_host_spec.ts
+++ b/packages/compiler-cli/test/aot_host_spec.ts
@@ -202,10 +202,6 @@ describe('CompilerHost', () => {
       {__symbolic: 'module', version: 3, metadata: {}, exports: [{from: './lib/utils'}]}
     ]);
   });
-
-  it('should follow metadata aliases', () => {
-    expect(hostNestedGenDir.getMetadataFor('alias/file.d.ts')).toEqual([dummyMetadata]);
-  });
 });
 
 const dummyModule = 'export let foo: any[];';
@@ -241,11 +237,6 @@ const FILES: Entry = {
           'empty.metadata.json': '[]',
         }
       },
-      'alias': {
-        'file.d.ts': dummyModule,
-        'file.metadata.json': '{ "alias": "sub/index.metadata.json"}',
-        'sub': {'index.metadata.json': JSON.stringify(dummyMetadata)}
-      },
       'metadata_versions': {
         'v1.d.ts': `
           import {ReExport} from './lib/utils2';