public If(If i) {
this.cond = new Expression(i.getCond());
this.baseCase = new Expression(i.getBaseCase());
this.recCase = new Expression(i.getRecCase());
this.ifZero = i.getIfZero();
copyEnvironment(i);
}
@Override
public void meet(If node) throws RuntimeException {
builder.append("CASE WHEN ");
optypes.push(ValueType.BOOL);
node.getCondition().visit(this);
optypes.pop();
optypes.push(new OPTypeFinder(node).coerce());
builder.append(" THEN ");
node.getResult().visit(this);
builder.append(" ELSE ");
node.getAlternative().visit(this);
builder.append(" END");
optypes.pop();
}
public void writeConditionalBranch16(ConditionalBranch16 _branch16, boolean _invert)
throws CodeGenException {
if (_branch16 instanceof If) {
final If iff = (If) _branch16;
writeInstruction(iff.getLhs());
write(_branch16.getOperator().getText(_invert));
writeInstruction(iff.getRhs());
} else if (_branch16 instanceof I_IFNULL) {
final I_IFNULL iff = (I_IFNULL) _branch16;
writeInstruction(iff.getFirstChild());
if (_invert) {
write(" != NULL");
} else {
write(" == NULL");
}
} else if (_branch16 instanceof I_IFNONNULL) {
final I_IFNONNULL iff = (I_IFNONNULL) _branch16;
writeInstruction(iff.getFirstChild());
if (_invert) {
write(" == NULL");
} else {
write(" != NULL");
}
} else if (_branch16 instanceof IfUnary) {
final IfUnary branch16 = (IfUnary) _branch16;
final Instruction comparison = branch16.getUnary();
final ByteCode comparisonByteCode = comparison.getByteCode();
final String comparisonOperator = _branch16.getOperator().getText(_invert);
switch (comparisonByteCode) {
case FCMPG:
case DCMPG:
case FCMPL:
case DCMPL:
if (Config.verboseComparitor) {
write("/* bytecode=" + comparisonByteCode.getName() + " invert=" + _invert + "*/");
}
writeInstruction(comparison.getFirstChild());
write(comparisonOperator);
writeInstruction(comparison.getLastChild());
break;
default:
if (Config.verboseComparitor) {
write(
"/* default bytecode="
+ comparisonByteCode.getName()
+ " invert="
+ _invert
+ "*/");
}
writeInstruction(comparison);
write(comparisonOperator);
write("0");
}
}
}