/**
* Returns a reconstructed Cetus expression from the simple expression.
*
* @return the Cetus expression.
*/
protected Expression getExpression() {
Expression ret = null;
if (children.isEmpty()) ret = (Expression) expr.clone();
else if (sop == TREE) {
ret = (Expression) expr.clone();
for (int i = 0; i < children.size(); ++i) ret.setChild(i, getChild(i).getExpression());
} else if (cop.get(sop) instanceof UnaryOperator) {
UnaryOperator uop = (UnaryOperator) cop.get(sop);
ret = new UnaryExpression(uop, getChild(0).getExpression());
} else if (cop.get(sop) instanceof BinaryOperator) {
BinaryOperator bop = (BinaryOperator) cop.get(sop);
Iterator<SimpleExpression> iter = children.iterator();
if (iter.hasNext()) ret = iter.next().getExpression();
while (iter.hasNext()) ret = new BinaryExpression(ret, bop, iter.next().getExpression());
} else Tools.exit("[SimpleExpression] unknown simple expression");
return ret;
}
protected List<EnumItemResult> getEnumValuesAndCommentsByName(
Enum e, Signatures signatures, Identifier libraryClassName) {
List<EnumItemResult> ret = new ArrayList<EnumItemResult>();
Integer lastAdditiveValue = null;
Expression lastRefValue = null;
boolean failedOnceForThisEnum = false;
for (com.ochafik.lang.jnaerator.parser.Enum.EnumItem item : e.getItems()) {
EnumItemResult res = new EnumItemResult();
res.originalItem = item;
try {
if (item.getArguments().isEmpty()) {
// no explicit value
if (lastRefValue == null) {
if (lastAdditiveValue != null) {
lastAdditiveValue++;
res.unconvertedValue = expr(lastAdditiveValue);
} else {
if (item == e.getItems().get(0)) {
lastAdditiveValue = 0;
res.unconvertedValue = expr(lastAdditiveValue);
} else res.unconvertedValue = null;
}
} else {
// has a last reference value
if (lastAdditiveValue != null) lastAdditiveValue++;
else lastAdditiveValue = 1;
res.unconvertedValue =
expr(lastRefValue.clone(), Expression.BinaryOperator.Plus, expr(lastAdditiveValue));
}
} else {
// has an explicit value
failedOnceForThisEnum = false; // reset skipping
lastAdditiveValue = null;
lastRefValue = item.getArguments().get(0);
res.unconvertedValue = lastRefValue;
if (lastRefValue instanceof Expression.Constant) {
try {
lastAdditiveValue = ((Expression.Constant) lastRefValue).asInteger();
lastRefValue = null;
} catch (Exception ex) {
}
}
}
res.convertedValue =
result
.typeConverter
.convertExpressionToJava(res.unconvertedValue, libraryClassName, true)
.getFirst();
} catch (Exception ex) {
failedOnceForThisEnum = true;
res.exceptionMessage = ex.toString();
}
failedOnceForThisEnum = failedOnceForThisEnum || res.errorElement != null;
if (failedOnceForThisEnum) res.errorElement = skipDeclaration(item);
ret.add(res);
}
return ret;
}
