/**
* Gathers all declarations (functions and static variables) used by the given main module.
*
* @param main the main module to start from
* @return list of all declarations that the main module uses
*/
public static List<StaticDecl> usedDecls(final MainModule main) {
final List<StaticDecl> scopes = new ArrayList<>();
final IdentityHashMap<Scope, Object> map = new IdentityHashMap<>();
main.visit(
new ASTVisitor() {
@Override
public boolean staticVar(final StaticVar var) {
if (map.put(var, var) == null) {
var.visit(this);
scopes.add(var);
}
return true;
}
@Override
public boolean staticFuncCall(final StaticFuncCall call) {
final StaticFunc f = call.func();
if (map.put(f, f) == null) {
f.visit(this);
scopes.add(f);
}
return true;
}
@Override
public boolean inlineFunc(final Scope sub) {
if (map.put(sub, sub) == null) sub.visit(this);
return true;
}
@Override
public boolean funcItem(final FuncItem func) {
if (map.put(func, func) == null) func.visit(this);
return true;
}
});
return scopes;
}
/**
* Compiles all necessary parts of this query.
*
* @param qc query context
* @param root root expression
* @throws QueryException compilation errors
*/
public static void compile(final QueryContext qc, final MainModule root) throws QueryException {
if (!root.compiled()) new QueryCompiler(qc, root).compile();
}