Always release the Resolver instance (#125)

Author: natebosch

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.5.3+2
+
+* BugFix: Always release the Resolver instance, even when generation does not
+  run
+
 ## 0.5.3+1
 
 * Don't throw when running against a non-library asset and getting no

lib/src/builder.dart

@@ -30,10 +30,13 @@ class GeneratorBuilder extends Builder {
   Future build(BuildStep buildStep) async {
     var id = buildStep.input.id;
     var resolver = await buildStep.resolve(id, resolveAllConstants: false);
-    var lib = resolver.getLibrary(id);
-    if (lib == null) return;
-    await _generateForLibrary(lib, buildStep);
-    resolver.release();
+    try {
+      var lib = resolver.getLibrary(id);
+      if (lib == null) return;
+      await _generateForLibrary(lib, buildStep);
+    } finally {
+      resolver.release();
+    }
   }
 
   @override

pubspec.yaml

@@ -1,5 +1,5 @@
 name: source_gen
-version: 0.5.3+1
+version: 0.5.3+2
 author: Dart Team <[email protected]>
 description: Automatic sourcecode generation for Dart
 homepage: https://github.com/dart-lang/source_gen