Range feedback for binary integer operations.

runtime/vm/token.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/token.h"
 
 #include "vm/object.h"
 
 namespace dart {
 
@@ skipping 21 matching lines @@
 #define TOKEN_ATTRIBUTE(t, s, p, a) a,
   const Token::Attribute Token::attributes_[] = {
     DART_TOKEN_LIST(TOKEN_ATTRIBUTE)
     DART_KEYWORD_LIST(TOKEN_ATTRIBUTE)
   };
 #undef TOKEN_ATTRIBUTE
 
 
 bool Token::IsBinaryOperator(Token::Kind token) {
   switch (token) {
+    case Token::kOR:
+    case Token::kAND:
+      return true;
+    default:
+      return IsBinaryArithmeticOperator(token);
+  }
+}
+
+
+bool Token::IsUnaryOperator(Token::Kind token) {
+  return (token == kNOT) || IsUnaryArithmeticOperator(token);
+}
+
+
+bool Token::IsBinaryArithmeticOperator(Token::Kind token) {
+  switch (token) {
     case Token::kADD:
     case Token::kSUB:
     case Token::kMUL:
     case Token::kDIV:
     case Token::kTRUNCDIV:
     case Token::kMOD:
     case Token::kBIT_OR:
     case Token::kBIT_XOR:
     case Token::kBIT_AND:
-    case Token::kOR:
-    case Token::kAND:
     case Token::kSHL:
     case Token::kSHR:
       return true;
     default:
       return false;
   }
 }
 
 
-bool Token::IsPrefixOperator(Token::Kind token) {
-  return (token == kNOT) || (token == kBIT_NOT) || (token == kNEGATE);
+bool Token::IsUnaryArithmeticOperator(Token::Kind token) {
+  return (token == kBIT_NOT) || (token == kNEGATE);
 }
 
+
 }  // namespace dart