SumOperation.ceylon
import ceylon.ast.core {
Node,
ScalingExpression,
AddingExpression,
SumOperation
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JSumOp=SumOp
}
}
"Converts a RedHat AST [[SumOp|JSumOp]] to a `ceylon.ast` [[SumOperation]]."
shared SumOperation sumOperationToCeylon(JSumOp sumOperation, Anything(JNode,Node) update = noop) {
"Check precedence"
assert (is AddingExpression left = expressionToCeylon(sumOperation.leftTerm, update),
is ScalingExpression right = expressionToCeylon(sumOperation.rightTerm, update));
value result = SumOperation(left, right);
update(sumOperation, result);
return result;
}
"Compiles the given [[code]] for a Sum Operation
into a [[SumOperation]] using the Ceylon compiler
(more specifically, the rule for an `additiveExpression`)."
shared SumOperation? compileSumOperation(String code, Anything(JNode,Node) update = noop) {
if (is JSumOp jAdditiveExpression = createParser(code).additiveExpression()) {
return sumOperationToCeylon(jAdditiveExpression, update);
} else {
return null;
}
}