Support the latest pkg:build, prepare to release (#833)

Author: kevmoo

json_serializable/CHANGELOG.md

@@ -1,6 +1,7 @@
-## 4.0.3-dev
+## 4.0.3
 
 - Correctly handle nullable values with `genericArgumentFactories`.
+- Require the latest `package:build`.
 
 ## 4.0.2
 

json_serializable/pubspec.yaml

@@ -1,5 +1,5 @@
 name: json_serializable
-version: 4.0.3-dev
+version: 4.0.3
 description: >-
   Automatically generate code for converting to and from JSON by annotating
   Dart classes.
@@ -11,7 +11,7 @@ environment:
 
 dependencies:
   analyzer: '>=0.41.2 <2.0.0'
-  build: ^1.6.1
+  build: ^2.0.0
   build_config: ^0.4.4
 
   # Use a tight version constraint to ensure that a constraint on

json_serializable/tool/doc_builder.dart

@@ -33,8 +33,13 @@ class _DocBuilder extends Builder {
         ? 'latest'
         : jsonAnnotationVersion.toString();
 
-    final lib = LibraryReader(await buildStep.resolver.libraryFor(
-        AssetId.resolve('package:json_annotation/json_annotation.dart')));
+    final lib = LibraryReader(
+      await buildStep.resolver.libraryFor(
+        AssetId.resolve(
+          Uri.parse('package:json_annotation/json_annotation.dart'),
+        ),
+      ),
+    );
 
     final descriptionMap = <String, _FieldInfo>{};