/**
 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.symboltable;

import java.util.Collections;
import java.util.Map;

public class GlobalScope extends AbstractScope implements Scope {

    public ClassScope getEnclosingClassScope() {
        throw new RuntimeException("getEnclosingClassScope() called on GlobalScope");
    }

    public void addDeclaration(MethodNameDeclaration decl) {
        throw new RuntimeException("addMethodDeclaration() called on GlobalScope");
    }

    public Map getUnusedVariableDeclarations() {
        return Collections.EMPTY_MAP;
    }

    public void addDeclaration(VariableNameDeclaration decl) {
    }

    public boolean contains(NameOccurrence occ) {
        return false;
    }

    public NameDeclaration addVariableNameOccurrence(NameOccurrence occ) {
        return null;
    }

    public String toString() {
        return "GlobalScope:" + super.glomNames();
    }

    protected NameDeclaration findVariableHere(NameOccurrence occ) {
        return null;
    }

}