Examples with TypeOperand org.jikesrvm.compilers.opt.ir.operand.TypeOperand used on opensource projects

Example 11 with TypeOperand

use of org.jikesrvm.compilers.opt.ir.operand.TypeOperand in project JikesRVM by JikesRVM.

the class ExceptionHandlerBasicBlock method mayCatchException.

/**
 * Return YES/NO/MAYBE values that answer the question is it possible for
 * this handler block to catch an exception of the type et.
 *
 * @param cand the TypeReference of the exception in question.
 * @return YES, NO, MAYBE
 */
public byte mayCatchException(TypeReference cand) {
    boolean seenMaybe = false;
    byte t;
    for (TypeOperand exceptionType : exceptionTypes) {
        t = ClassLoaderProxy.includesType(exceptionType.getTypeRef(), cand);
        if (t == YES)
            return YES;
        seenMaybe |= (t == MAYBE);
        t = ClassLoaderProxy.includesType(cand, exceptionType.getTypeRef());
        if (t == YES)
            return YES;
        seenMaybe |= (t == MAYBE);
    }
    return seenMaybe ? MAYBE : NO;
}