ComplementOperation.ceylon
import ceylon.ast.core {
ComplementOperation,
IntersectingExpression,
Node,
UnioningExpression
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JComplementOp=ComplementOp
}
}
"Converts a RedHat AST [[ComplementOp|JComplementOp]] to a `ceylon.ast` [[ComplementOperation]]."
shared ComplementOperation complementOperationToCeylon(JComplementOp complementOperation, Anything(JNode,Node) update = noop) {
"Check precedence"
assert (is UnioningExpression left = expressionToCeylon(complementOperation.leftTerm, update),
is IntersectingExpression right = expressionToCeylon(complementOperation.rightTerm, update));
value result = ComplementOperation(left, right);
update(complementOperation, result);
return result;
}
"Compiles the given [[code]] for a Complement Operation
into a [[ComplementOperation]] using the Ceylon compiler
(more specifically, the rule for a `unionExpression`)."
shared ComplementOperation? compileComplementOperation(String code, Anything(JNode,Node) update = noop) {
if (is JComplementOp jComplementOperation = createParser(code).unionExpression()) {
return complementOperationToCeylon(jComplementOperation, update);
} else {
return null;
}
}