Add support for more typed data types on native ports

runtime/include/dart_api.h

Index: runtime/include/dart_api.h
diff --git a/runtime/include/dart_api.h b/runtime/include/dart_api.h
index 2ac024ad2383f7717443b4c4e11cb12166064d6f..b75db3c3f9708c5b07f41a03ed1e92b58bf4e3f6 100755
--- a/runtime/include/dart_api.h
+++ b/runtime/include/dart_api.h
@@ -942,6 +942,11 @@ DART_EXPORT bool Dart_Post(Dart_Port port_id, Dart_Handle object);
  * representation as a Dart_CObject.
  *
  * The string encoding in the 'value.as_string' is UTF-8.
+ *
+ * All the different types from dart:typeddata are all expopsed as

[Mads Ager (google), 2013/04/12 09:03:46]

are all expopsed -> are exposed

[Søren Gjesse, 2013/04/15 09:14:34]

Done.

+ * type kByteArray. The specific type from dart:typeddata is in the
+ * as_byte_array structure. No matter what specific type the byte

[Mads Ager (google), 2013/04/12 09:03:46]

Maybe shorten the last sentence to just: "The length in the byte array structure
is always in bytes."

[Søren Gjesse, 2013/04/15 09:14:34]

Done.

+ * array has the specified length is always in bytes.
  */
 typedef struct _Dart_CObject {
   enum Type {
@@ -953,11 +958,20 @@ typedef struct _Dart_CObject {
     kDouble,
     kString,
     kArray,
-    kUint8Array,
-    kExternalUint8Array,
+    kByteArray,
+    kExternalByteArray,
     kUnsupported,
     kNumberOfTypes
   } type;
+
+  enum ByteArrayType {
+    kInt8Array = 0,
+    kUint8Array,
+    kInt16Array,
+    kUint16Array,
+    kNumberOfByteArrayTypes
+  };
+
   union {
     bool as_bool;
     int32_t as_int32;
@@ -970,10 +984,12 @@ typedef struct _Dart_CObject {
       struct _Dart_CObject** values;
     } as_array;
     struct {
+      ByteArrayType type;
       int length;
       uint8_t* values;
     } as_byte_array;
     struct {
+      ByteArrayType type;
       int length;
       uint8_t* data;
       void* peer;