From 66335c36e64b8d0ff0be0dcfc9ee33f878b65c30 Mon Sep 17 00:00:00 2001
From: Alex Rickabaugh <alx+alxhub@alxandria.net>
Date: Mon, 28 Jan 2019 16:26:17 -0800
Subject: [PATCH] fix(ivy): getSourceFile() of transformed nodes returns
 undefined (#28412)

In some cases, calling getSourceFile() on a node from within a TS
transform can return undefined (against the signature of the method).
In these cases, getting the original node first will work.

PR Close #28412
---
 packages/compiler-cli/src/ngtsc/annotations/src/ng_module.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/compiler-cli/src/ngtsc/annotations/src/ng_module.ts b/packages/compiler-cli/src/ngtsc/annotations/src/ng_module.ts
index f8a93ae3f2..bb15665356 100644
--- a/packages/compiler-cli/src/ngtsc/annotations/src/ng_module.ts
+++ b/packages/compiler-cli/src/ngtsc/annotations/src/ng_module.ts
@@ -167,7 +167,10 @@ export class NgModuleDecoratorHandler implements DecoratorHandler<NgModuleAnalys
     if (analysis.metadataStmt !== null) {
       ngModuleStatements.push(analysis.metadataStmt);
     }
-    const context = node.getSourceFile();
+    let context = node.getSourceFile();
+    if (context === undefined) {
+      context = ts.getOriginalNode(node).getSourceFile();
+    }
     for (const decl of analysis.declarations) {
       if (this.scopeRegistry.requiresRemoteScope(decl.node)) {
         const scope = this.scopeRegistry.lookupCompilationScopeAsRefs(decl.node);