private static void flattenKSequence(
List<org.kframework.kil.Term> flatList, List<org.kframework.kil.Term> nestedList) {
for (org.kframework.kil.Term term : nestedList) {
if (term instanceof org.kframework.kil.KSequence) {
org.kframework.kil.KSequence kSequence = (org.kframework.kil.KSequence) term;
KILtoBackendJavaKILTransformer.flattenKSequence(flatList, kSequence.getContents());
} else {
flatList.add(term);
}
}
}
@Override
public ASTNode transform(org.kframework.kil.KSequence node) throws TransformerException {
List<org.kframework.kil.Term> list = new ArrayList<org.kframework.kil.Term>();
KILtoBackendJavaKILTransformer.flattenKSequence(list, node.getContents());
Variable variable = null;
if (!list.isEmpty()
&& list.get(list.size() - 1) instanceof org.kframework.kil.Variable
&& list.get(list.size() - 1).getSort().equals(org.kframework.kil.KSorts.K)) {
variable = (Variable) list.remove(list.size() - 1).accept(this);
}
ImmutableList.Builder<Term> builder = new ImmutableList.Builder<Term>();
for (org.kframework.kil.Term term : list) {
builder.add((Term) term.accept(this));
}
return new KSequence(builder.build(), variable);
}
@Override
public ASTNode visit(org.kframework.kil.KSequence node, Void _void) {
List<org.kframework.kil.Term> list = new ArrayList<>();
KILtoBackendJavaKILTransformer.flattenKSequence(list, node.getContents());
Variable variable = null;
if (!list.isEmpty()
&& list.get(list.size() - 1) instanceof org.kframework.kil.Variable
&& list.get(list.size() - 1).getSort().equals(org.kframework.kil.Sort.K)) {
variable = (Variable) this.visitNode(list.remove(list.size() - 1));
}
KSequence.Builder builder = KSequence.builder();
for (org.kframework.kil.Term term : list) {
builder.concatenate((Term) this.visitNode(term));
}
if (variable != null) {
builder.concatenate(variable);
}
return builder.build();
}