SumOperation.ceylon
import ceylon.ast.core {
ScalingExpression,
AddingExpression,
SumOperation
}
import com.redhat.ceylon.compiler.typechecker.tree {
Tree {
JSumOp=SumOp
}
}
"Converts a RedHat AST [[SumOp|JSumOp]] to a `ceylon.ast` [[SumOperation]]."
shared SumOperation sumOperationToCeylon(JSumOp sumOperation) {
"Check precedence"
assert (is AddingExpression left = expressionToCeylon(sumOperation.leftTerm),
is ScalingExpression right = expressionToCeylon(sumOperation.rightTerm));
return SumOperation(left, right);
}
"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) {
if (is JSumOp jAdditiveExpression = createParser(code).additiveExpression()) {
return sumOperationToCeylon(jAdditiveExpression);
} else {
return null;
}
}