/**
* A filter for the sequence </br> Combines the sequential type and method declarations into a
* block </br>
*
* @return return the sequence after combination.
*/
private Sequence combine() {
boolean recBlock = false;
Sequence normalSeq = new Sequence();
Sequence recSequence = new DeclSequence();
for (TypedAST ast : this.getIterator()) {
if (ast instanceof TypeVarDecl
|| ast instanceof DefDeclaration
|| ast instanceof TypeAbbrevDeclaration) {
Declaration d = (Declaration) ast;
if (recBlock == false) {
recBlock = true;
recSequence = new DeclSequence();
}
recSequence = Sequence.append(recSequence, d);
} else {
if (recBlock == true) {
normalSeq = Sequence.append(normalSeq, recSequence);
}
normalSeq = Sequence.append(normalSeq, ast);
recBlock = false;
}
}
if (recBlock == true) {
normalSeq = Sequence.append(normalSeq, recSequence);
}
return normalSeq;
}
