Add types of BufferSource

lib/make/typed.js

@@ -78,5 +78,37 @@ make.typed = {
       [1, [this.range, make.number.tiny]]
     ])
     return random.chance(10) ? -value : value
+  },
+  arrayBuffer: function(byteLength = null) {
+    let length = (byteLength !== null) ? byteLength : this.unsignedShort()
+    return 'new ArrayBuffer(' + length + ')'
+  },
+  dataView: function(byteLength = null) {
+    let length = (byteLength !== null) ? byteLength : this.unsignedShort()
+    return 'new DataView(' + this.arrayBuffer(length) + ')'
+  },
+  typedArray: function(byteLength = null) {
+    let length = (byteLength !== null) ? byteLength : this.unsignedShort()
+    let arrType = random.item([
+      'Int8', 'Uint8', 'Uint8Clamped',
+      'Int16', 'Uint16',
+      'Int32', 'Uint32',
+      'Float32', 'Float64',
+    ])
+    let method = 'new ' + arrType + 'Array'
+    switch (random.number(16)) {
+      case 0:
+        return method + '()'
+      case 1:
+        return method + '(' + this.typedArray() + ')'
+      default:
+        return method + '(' + length + ')'
+    }
+  },
+  bufferSource: function() {
+    return random.choose([
+      [1, [this.arrayBuffer, this.dataView]],
+      [1, [this.typedArray]]
+    ])
   }
 }