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