From 3bedfdac9d3ce8583c58eeb5641460c021b720e3 Mon Sep 17 00:00:00 2001
From: Pete Bacon Darwin <pete@bacondarwin.com>
Date: Thu, 9 Apr 2020 16:02:57 +0100
Subject: [PATCH] perf(ngcc): only load  if it is needed (#36486)

PR Close #36486
---
 packages/compiler-cli/ngcc/src/main.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/compiler-cli/ngcc/src/main.ts b/packages/compiler-cli/ngcc/src/main.ts
index e0565b4c5b..1f63a029bb 100644
--- a/packages/compiler-cli/ngcc/src/main.ts
+++ b/packages/compiler-cli/ngcc/src/main.ts
@@ -44,7 +44,6 @@ import {NgccConfiguration} from './packages/configuration';
 import {EntryPoint, EntryPointJsonProperty, EntryPointPackageJson, getEntryPointFormat, SUPPORTED_FORMAT_PROPERTIES} from './packages/entry_point';
 import {makeEntryPointBundle} from './packages/entry_point_bundle';
 import {EntryPointManifest, InvalidatingEntryPointManifest} from './packages/entry_point_manifest';
-import {Transformer} from './packages/transformer';
 import {PathMappings} from './utils';
 import {cleanOutdatedPackages} from './writing/cleaning/package_cleaner';
 import {FileWriter} from './writing/file_writer';
@@ -315,6 +314,7 @@ export function mainNgcc({
   const createCompileFn: CreateCompileFn = onTaskCompleted => {
     const fileWriter = getFileWriter(
         fileSystem, logger, pkgJsonUpdater, createNewEntryPointFormats, errorOnFailedEntryPoint);
+    const {Transformer} = require('./packages/transformer');
     const transformer = new Transformer(fileSystem, logger, tsConfig);
 
     return (task: Task) => {