dart2js: remove trailing 0 byte when reading .packages

BUG= [email protected] Review URL: https://codereview.chromium.org//1290643007.
dart-lang · Aug 20, 2015 · 1aecb65 · 1aecb65
1 parent 7f78948
commit 1aecb65
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/pkg/compiler/lib/src/apiimpl.dart b/pkg/compiler/lib/src/apiimpl.dart
@@ -379,6 +379,13 @@ class Compiler extends leg.Compiler {
         if (packageConfigContents is String) {
           packageConfigContents = UTF8.encode(packageConfigContents);
         }
+        // The input provider may put a trailing 0 byte when it reads a source
+        // file, which confuses the package config parser.
+        if (packageConfigContents.length > 0
+            && packageConfigContents.last == 0) {
+          packageConfigContents = packageConfigContents.sublist(
+              0, packageConfigContents.length - 1);
+        }
         packages =
             new MapPackages(pkgs.parse(packageConfigContents, packageConfig));
       });