MeasureOperation.ceylon
import ceylon.ast.core {
MeasureOperation,
AddingExpression,
Node
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JSegmentOp=SegmentOp
}
}
"Converts a RedHat AST [[SegmentOp|JSegmentOp]] to a `ceylon.ast` [[MeasureOperation]]."
shared MeasureOperation measureOperationToCeylon(JSegmentOp measureOperation, Anything(JNode,Node) update = noop) {
"Check precedence"
assert (is AddingExpression left = expressionToCeylon(measureOperation.leftTerm, update),
is AddingExpression right = expressionToCeylon(measureOperation.rightTerm, update));
value result = MeasureOperation(left, right);
update(measureOperation, result);
return result;
}
"Compiles the given [[code]] for a Measure Operation
into a [[MeasureOperation]] using the Ceylon compiler
(more specifically, the rule for an `entryRangeExpression`)."
shared MeasureOperation? compileMeasureOperation(String code, Anything(JNode,Node) update = noop) {
if (is JSegmentOp jEntryRangeExpression = createParser(code).entryRangeExpression()) {
return measureOperationToCeylon(jEntryRangeExpression, update);
} else {
return null;
}
}