[flutter_tools] check if requireloader is defined (#55085)

77c05f75 · Jonah Williams · GitHub · f57197ad · 77c05f75
Unverified Commit 77c05f75 authored Apr 20, 2020 by Jonah Williams Committed by GitHub Apr 20, 2020
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Showing with 16 additions and 14 deletions

bootstrap.dart packages/flutter_tools/lib/src/web/bootstrap.dart +16 -14

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--- a/packages/flutter_tools/lib/src/web/bootstrap.dart
+++ b/packages/flutter_tools/lib/src/web/bootstrap.dart
@@ -62,20 +62,22 @@ define("main_module.bootstrap", ["$entrypoint", "dart_sdk"], function(app, dart_
  /* MAIN_EXTENSION_MARKER */
  child.main();
-window.\$dartLoader = {};
+  window.\$dartLoader = {};
-window.\$dartLoader.rootDirectories = [];
+  window.\$dartLoader.rootDirectories = [];
-window.\$requireLoader.getModuleLibraries = dart_sdk.dart.getModuleLibraries;
+  if (window.\$requireLoader) {
-  if (window.\$dartStackTraceUtility && !window.\$dartStackTraceUtility.ready) {
+    window.\$requireLoader.getModuleLibraries = dart_sdk.dart.getModuleLibraries;
-    window.\$dartStackTraceUtility.ready = true;
+    if (window.\$dartStackTraceUtility && !window.\$dartStackTraceUtility.ready) {
-    let dart = dart_sdk.dart;
+      window.\$dartStackTraceUtility.ready = true;
-    window.\$dartStackTraceUtility.setSourceMapProvider(function(url) {
+      let dart = dart_sdk.dart;
-      url = url.replace(window.\$dartUriBase + '/', '');
+      window.\$dartStackTraceUtility.setSourceMapProvider(function(url) {
-      if (url == 'dart_sdk.js') {
+        url = url.replace(window.\$dartUriBase + '/', '');
-        return dart.getSourceMap('dart_sdk');
+        if (url == 'dart_sdk.js') {
-      }
+          return dart.getSourceMap('dart_sdk');
-      url = url.replace(".lib.js", "");
+        }
-      return dart.getSourceMap(url);
+        url = url.replace(".lib.js", "");
-    });
+        return dart.getSourceMap(url);
+      });
+    }
  }
 });
 ''';