Add TypedData instance kinds.

runtime/observatory/lib/src/service/object.dart

Index: runtime/observatory/lib/src/service/object.dart
diff --git a/runtime/observatory/lib/src/service/object.dart b/runtime/observatory/lib/src/service/object.dart
index 75c09182de503bbd483c0b534dea51e712d0472b..6235c473a3d3fe0c8f635f9e6626cc198f0dddf4 100644
--- a/runtime/observatory/lib/src/service/object.dart
+++ b/runtime/observatory/lib/src/service/object.dart
@@ -117,6 +117,7 @@ abstract class ServiceObject extends Observable {
   bool get isInt => false;
   bool get isList => false;
   bool get isMap => false;
+  bool get isTypedData => false;
   bool get isMirrorReference => false;
   bool get isWeakProperty => false;
   bool get isClosure => false;
@@ -1844,6 +1845,67 @@ class Class extends ServiceObject with Coverage {
   String toString() => 'Class($vmName)';
 }
 
+const _decodeTable =

[Cutch, 2015/06/08 23:10:19]

Move this to lib/base64.dart

[rmacnak, 2015/06/09 00:29:47]

Done.

+    const [null, null, null, null, null, null, null, null,
+           null, null, null, null, null, null, null, null,
+           null, null, null, null, null, null, null, null,
+           null, null, null, null, null, null, null, null,
+           null, null, null, null, null, null, null, null,
+           null, null, null, 62, null, null, null, 63,
+           52, 53, 54, 55, 56, 57, 58, 59,
+           60, 61, null, null, null, 0, null, null,
+           null, 0, 1, 2, 3, 4, 5, 6,
+           7, 8, 9, 10, 11, 12, 13, 14,
+           15, 16, 17, 18, 19, 20, 21, 22,
+           23, 24, 25, null, null, null, null, null,
+           null, 26, 27, 28, 29, 30, 31, 32,
+           33, 34, 35, 36, 37, 38, 39, 40,
+           41, 42, 43, 44, 45, 46, 47, 48,
+           49, 50, 51];
+
+Uint8List _decodeBase64(String s) {
+  if (s.length % 4 != 0) throw "Malformed Base64: $s";
+
+  var odd_bits = 0;
+  if (s[s.length - 1] == '=') {
+    if (s[s.length - 2] == '=') {
+      odd_bits = 2;
+    } else {
+      odd_bits = 1;
+    }
+  }
+
+  var result = new Uint8List(s.length ~/ 4 * 3 - odd_bits);

[Cutch, 2015/06/08 23:10:19]

var decodedByteLength = ((s.length ~/ 4) * 3) - odd_bits
var result = new Uint8List(decodedByteLength);

[rmacnak, 2015/06/09 00:29:47]

Done.

+  var limit = s.length;
+  if (odd_bits != 0) {
+    limit = limit - 4;
+  }
+
+  var i = 0, j = 0;
+  while (i < limit) {
+    var triple = _decodeTable[s.codeUnitAt(i++)];
+    triple = (triple << 6) | _decodeTable[s.codeUnitAt(i++)];
+    triple = (triple << 6) | _decodeTable[s.codeUnitAt(i++)];
+    triple = (triple << 6) | _decodeTable[s.codeUnitAt(i++)];
+    result[j++] = triple >> 16;
+    result[j++] = (triple >> 8) & 255;
+    result[j++] = triple & 255;
+  }
+
+  if (odd_bits != 0) {
+    var triple = _decodeTable[s.codeUnitAt(i++)];
+    triple = (triple << 6) | _decodeTable[s.codeUnitAt(i++)];
+    triple = (triple << 6) | _decodeTable[s.codeUnitAt(i++)];
+    triple = (triple << 6) | _decodeTable[s.codeUnitAt(i++)];
+    result[j++] = triple >> 16;
+    if (odd_bits == 1) {
+      result[j++] = (triple >> 8) & 255;
+    }
+  }
+
+  return result;

[Cutch, 2015/06/08 23:10:19]

assert(j == decodedByteLength);
return result;

[rmacnak, 2015/06/09 00:29:47]

Done.

+}
+
 class Instance extends ServiceObject {
   @observable String kind;
   @observable Class clazz;
@@ -1854,13 +1916,14 @@ class Instance extends ServiceObject {
   @observable ServiceFunction function;  // If a closure.
   @observable Context context;  // If a closure.
   @observable String name;  // If a Type.
-  @observable int length; // If a List or Map.
+  @observable int length; // If a List, Map or TypedData.
 
   @observable var typeClass;
   @observable var fields;
   @observable var nativeFields;
   @observable var elements;  // If a List.
   @observable var associations;  // If a Map.
+  @observable var typedElements;  // If a TypedData.
   @observable var referent;  // If a MirrorReference.
   @observable Instance key;  // If a WeakProperty.
   @observable Instance value;  // If a WeakProperty.
@@ -1876,6 +1939,22 @@ class Instance extends ServiceObject {
   bool get isInt => kind == 'Int';
   bool get isList => kind == 'List';
   bool get isMap => kind == 'Map';
+  bool get isTypedData {
+    return kind == 'Uint8ClampedList'
+        || kind == 'Uint8List'
+        || kind == 'Uint16List'
+        || kind == 'Uint32List'
+        || kind == 'Uint64List'
+        || kind == 'Int8List'
+        || kind == 'Int16List'
+        || kind == 'Int32List'
+        || kind == 'Int64List'
+        || kind == 'Float32List'
+        || kind == 'Float64List'
+        || kind == 'Int32x4List'
+        || kind == 'Float32x4List'
+        || kind == 'Float64x2List';
+  }
   bool get isMirrorReference => kind == 'MirrorReference';
   bool get isWeakProperty => kind == 'WeakProperty';
   bool get isClosure => kind == 'Closure';
@@ -1909,6 +1988,39 @@ class Instance extends ServiceObject {
     fields = map['fields'];
     elements = map['elements'];
     associations = map['associations'];
+    if (map['bytes'] != null) {
+      var bytes = _decodeBase64(map['bytes']);
+      switch (map['kind']) {
+        case "Uint8ClampedList":
+          typedElements = bytes.buffer.asUint8ClampedList(); break;
+        case "Uint8List":
+          typedElements = bytes.buffer.asUint8List(); break;
+        case "Uint16List":
+          typedElements = bytes.buffer.asUint16List(); break;
+        case "Uint32List":
+          typedElements = bytes.buffer.asUint32List(); break;
+        case "Uint64List":
+          typedElements = bytes.buffer.asUint64List(); break;
+        case "Int8List":
+          typedElements = bytes.buffer.asInt8List(); break;
+        case "Int16List":
+          typedElements = bytes.buffer.asInt16List(); break;
+        case "Int32List":
+          typedElements = bytes.buffer.asInt32List(); break;
+        case "Int64List":
+          typedElements = bytes.buffer.asInt64List(); break;
+        case "Float32List":
+          typedElements = bytes.buffer.asFloat32List(); break;
+        case "Float64List":
+          typedElements = bytes.buffer.asFloat64List(); break;
+        case "Int32x4List":
+          typedElements = bytes.buffer.asInt32x4List(); break;
+        case "Float32x4List":
+          typedElements = bytes.buffer.asFloat32x4List(); break;
+        case "Float64x2List":
+          typedElements = bytes.buffer.asFloat64x2List(); break;
+      }
+    }
     typeClass = map['typeClass'];
     referent = map['mirrorReferent'];
     key = map['propertyKey'];
@@ -2101,7 +2213,7 @@ class Field extends ServiceObject {
   @observable String vmName;
 
   @observable bool guardNullable;
-  @observable String guardClass;
+  @observable var /* Class | String */ guardClass;
   @observable String guardLength;
   @observable SourceLocation location;