Use switch expressions, bump some deps (#397)

Author: kevmoo

dartfn/lib/src/generators/json.g.dart

@@ -9,7 +9,7 @@ environment:
 
 dependencies:
   functions_framework: ^0.4.0
-  json_annotation: ^4.3.0
+  json_annotation: ^4.8.1
   shelf: ^1.0.0
 
 dev_dependencies:

dartfn/templates/json/pubspec.yaml

@@ -6,7 +6,7 @@ environment:
 
 dependencies:
   functions_framework: ^0.4.0
-  json_annotation: ^4.3.0
+  json_annotation: ^4.8.1
   shelf: ^1.0.0
 
 dev_dependencies:

examples/fullstack/backend/pubspec.yaml

@@ -10,7 +10,7 @@ executables:
 dependencies:
   http: '>=0.13.1 <2.0.0'
   io: ^1.0.0
-  json_annotation: ^4.3.0
+  json_annotation: ^4.8.1
 
 dev_dependencies:
   build_runner: ^2.0.0

examples/fullstack/frontend-cli/pubspec.yaml

@@ -25,16 +25,11 @@ extension EnumToString on Environment {
   String toName() => toString().split('.').last;
 }
 
-Environment parseEnvironment(String env) {
-  switch (env) {
-    case 'dev':
-      return Environment.dev;
-    case 'prod':
-      return Environment.prod;
-    default:
-      throw Exception("Parsing as Environment enum exception: '$env'");
-  }
-}
+Environment parseEnvironment(String env) => switch (env) {
+      'dev' => Environment.dev,
+      'prod' => Environment.prod,
+      _ => throw Exception("Parsing as Environment enum exception: '$env'")
+    };
 
 class Config {
   final String greetingsUrl;

examples/fullstack/frontend/lib/config.dart

@@ -11,7 +11,7 @@ dependencies:
   flutter:
     sdk: flutter
   http: '>=0.13.0 <2.0.0'
-  json_annotation: ^4.3.0
+  json_annotation: ^4.8.1
   provider: ^6.0.0
 
 dev_dependencies:

examples/fullstack/frontend/pubspec.yaml

@@ -9,7 +9,7 @@ environment:
 
 dependencies:
   functions_framework: ^0.4.0
-  json_annotation: ^4.3.0
+  json_annotation: ^4.8.1
   shelf: ^1.0.0
 
 dev_dependencies:

examples/json/pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
   http: '>=0.13.0 <2.0.0'
   http_parser: ^4.0.0
   io: ^1.0.0
-  json_annotation: ^4.3.0
+  json_annotation: ^4.8.1
   meta: ^1.2.3
   shelf: ^1.2.0
   stack_trace: ^1.9.6

functions_framework/pubspec.yaml

@@ -84,7 +84,7 @@ class _FunctionsFrameworkBuilder implements Builder {
     }
 
     final cases = [
-      for (var e in entries.values) '  case ${e.name}:return ${e.expression};',
+      for (var e in entries.values) '  ${e.name} => ${e.expression},',
     ];
 
     final importDirectives = [
@@ -114,13 +114,11 @@ Future<void> main(List<String> args) async {
   await serve(args, _nameToFunctionTarget);
 }
 
-FunctionTarget? _nameToFunctionTarget(String name) {
+FunctionTarget? _nameToFunctionTarget(String name) =>
   switch (name) {
 ${cases.join('\n')}
-    default:
-      return null;
-  }
-}
+  _ => null
+  };
 ''';
 
     try {