fix dart compatibility

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.3.0
+
+Fix support for dart@2
+
 ## 0.0.8
 
 Breaking changes. Removed `hart` dependency, `start` now uses proper `Cookie` library,

lib/src/request.dart

@@ -55,7 +55,7 @@ class Request {
     var completer = new Completer<Map>();
 
     if (isMime('application/x-www-form-urlencoded')) {
-      _request.transform(const AsciiDecoder())
+			const AsciiDecoder().bind(_request)
           .listen((content) {
             final payload = new Map.fromIterable(
                 content.split('&').map((kvs) => kvs.split('=')),
@@ -67,7 +67,7 @@ class Request {
     } else if (isMime('multipart/form-data', loose: true)) {
       var boundary = _request.headers.contentType.parameters['boundary'];
       final payload = new Map();
-      _request.transform(new MimeMultipartTransformer(boundary))
+			new MimeMultipartTransformer(boundary).bind(_request)
           .map(HttpMultipartFormData.parse)
           .listen((HttpMultipartFormData formData) {
             var parameters = formData.contentDisposition.parameters;
@@ -85,7 +85,7 @@ class Request {
             completer.complete(payload);
           });
     } else if (isMime('application/json')) {
-      _request.transform(const Utf8Decoder())
+			const Utf8Decoder().bind(_request)
           .listen((content) {
             final payload = jsonDecode(content);
             completer.complete(payload);

pubspec.yaml

@@ -4,12 +4,12 @@ version: 0.3.0
 homepage: http://github.com/lvivski/start
 description: Sinatra inspired Web framework
 environment:
-  sdk: '>=2.0.0'
+  sdk: '>=2.0.0 <3.0.0'
 dependencies:
-  logging: any
-  http_server: any
-  mime: any
+  logging: '>=0.11.3 <0.12.0'
+  http_server: '>=0.9.8 <0.10.0'
+  mime: '>=0.9.6 <0.10.0'
 
 dev_dependencies:
-  test: any
-  mockito: any
+  test: '>=1.9.4 <1.10.0'
+  mockito: '>=4.1.1 <4.2.0'