コード例 #1
0
  private static int getExprPriorityLevel(GrExpression expr) {
    int priority = 0;
    // if (expr instanceof GrNewExpression) priority = 1;
    if (expr instanceof GrUnaryExpression)
      priority = ((GrUnaryExpression) expr).isPostfix() ? 5 : 6;
    else if (expr instanceof GrTypeCastExpression) priority = 6;
    else if (expr instanceof GrRangeExpressionImpl) priority = 11;
    else if (expr instanceof GrBinaryExpression) {
      final IElementType opToken = ((GrBinaryExpression) expr).getOperationTokenType();

      if (opToken == mSTAR_STAR) priority = 7;
      else if (opToken == mSTAR || opToken == mDIV) priority = 8;
      else if (opToken == mPLUS || opToken == mMINUS) priority = 9;
      else if (SHIFT_SIGNS.contains(opToken)) priority = 10;
      else if (RELATIONS.contains(opToken)) priority = 12;
      else if (opToken == mEQUAL || opToken == mNOT_EQUAL || opToken == mCOMPARE_TO) priority = 13;
      else if (opToken == mREGEX_FIND || opToken == mREGEX_MATCH) priority = 14;
      else if (opToken == mBAND) priority = 15;
      else if (opToken == mBXOR) priority = 16;
      else if (opToken == mBOR) priority = 17;
      else if (opToken == mLAND) priority = 18;
      else if (opToken == mLOR) priority = 19;
    } else if (expr instanceof GrConditionalExpression) priority = 20;
    else if (expr instanceof GrSafeCastExpression) priority = 21;
    else if (expr instanceof GrAssignmentExpression) priority = 22;
    else if (expr instanceof GrApplicationStatement) priority = 23;

    return -priority;
  }
コード例 #2
0
 private static boolean isNotAssociative(GrBinaryExpression binaryExpression) {
   final IElementType opToken = binaryExpression.getOperationTokenType();
   if (binaryExpression instanceof GrMultiplicativeExpressionImpl) {
     return opToken != mSTAR;
   }
   if (binaryExpression instanceof GrAdditiveExpressionImpl) {
     return opToken == mMINUS;
   }
   return RELATIONS.contains(opToken)
       || opToken == mCOMPARE_TO
       || opToken == mREGEX_FIND
       || opToken == mREGEX_MATCH
       || SHIFT_SIGNS.contains(opToken)
       || opToken == mSTAR;
 }