Updated code to be compatible with Dart 2.2

.gitignore

@@ -13,3 +13,4 @@ packages/
 # Include when developing application packages.
 pubspec.lock
 lib/libdart_curses.dylib
+lib/libdart_curses.so

bin/test_curses.dart

@@ -32,7 +32,7 @@ void main() {
     w.dispose();
     stdscr.dispose();
 
-    var strKey = new String.fromCharCode(key);
+    var strKey = new String.fromCharCode(key.keyCode);
     print("key = $strKey");
   });
 

lib/Makefile

@@ -1,2 +1,2 @@
 all:
-	gcc -I/opt/dart/dart-sdk -fPIC -shared -lcurses -undefined dynamic_lookup -o libdart_curses.dylib dart_curses.cc
+	clang -I/usr/lib/dart -fPIC -shared -lcurses -undefined dynamic_lookup -o libdart_curses.so dart_curses.cc

lib/curses.dart

@@ -252,6 +252,7 @@ class Key {
 
   String toString() => 'Key(${name}, ${_keyCode})';
 
+  int get keyCode => _keyCode;
 }
 
 class Screen extends Window {
@@ -461,9 +462,9 @@ class Window {
 
     final receivePort = new ReceivePort();
 
-    receivePort.listen((int keyCode) {
+    receivePort.listen((keyCode) {
       receivePort.close();
-      completer.complete(new Key._fromKeyCode(keyCode));
+      completer.complete(new Key._fromKeyCode(keyCode as int));
     });
 
     _wgetch.send([_window, receivePort.sendPort]);

lib/dart_curses.cc

@@ -425,7 +425,7 @@ void wrapped_wgetch(Dart_Port dest_port_id, Dart_CObject* message) {
 	Dart_CObject* _receivePort = message->value.as_array.values[1];
 
 	int64_t window = _window->value.as_int64;
-	Dart_Port receivePort = _receivePort->value.as_send_port;
+	Dart_Port receivePort = _receivePort->value.as_send_port.id;
 
 	int64_t key = wgetch((WINDOW*)window);
 

pubspec.yaml

@@ -4,6 +4,6 @@ author: Iván Zaera Avellón <[email protected]>
 description: Bindings for curses library in Dart
 homepage: https://github.com/izaera/dart-curses
 environment:
-  sdk: '>=0.8.10+6 <2.0.0'
+  sdk: '>=0.8.10+6 <=2.2.0'
 dependencies:
   logging: any