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;
}
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;
}