SpanOperation.ceylon
import ceylon.ast.core {
AddingExpression,
SpanOperation
}
import com.redhat.ceylon.compiler.typechecker.tree {
Tree {
JRangeOp=RangeOp
}
}
"Converts a RedHat AST [[RangeOp|JRangeOp]] to a `ceylon.ast` [[SpanOperation]]."
shared SpanOperation spanOperationToCeylon(JRangeOp spanOperation) {
"Check precedence"
assert (is AddingExpression left = expressionToCeylon(spanOperation.leftTerm),
is AddingExpression right = expressionToCeylon(spanOperation.rightTerm));
return SpanOperation(left, right);
}
"Compiles the given [[code]] for a Span Operation
into a [[SpanOperation]] using the Ceylon compiler
(more specifically, the rule for an `entryRangeExpression`)."
shared SpanOperation? compileSpanOperation(String code) {
if (is JRangeOp jEntryRangeExpression = createParser(code).entryRangeExpression()) {
return spanOperationToCeylon(jEntryRangeExpression);
} else {
return null;
}
}