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25 
26 package sun.reflect.generics.scope;
27 
28 import java.lang.reflect.Constructor;
29 
30 
31 /**
32  * This class represents the scope containing the type variables of
33  * a constructor.
34  */
35 public class ConstructorScope extends AbstractScope<Constructor<?>> {
36 
37     // constructor is private to enforce use of factory method
ConstructorScope(Constructor<?> c)38     private ConstructorScope(Constructor<?> c){
39         super(c);
40     }
41 
42     // utility method; computes enclosing class, from which we can
43     // derive enclosing scope.
getEnclosingClass()44     private Class<?> getEnclosingClass(){
45         return getRecvr().getDeclaringClass();
46     }
47 
48     /**
49      * Overrides the abstract method in the superclass.
50      * @return the enclosing scope
51      */
computeEnclosingScope()52     protected Scope computeEnclosingScope() {
53         // the enclosing scope of a (generic) constructor is the scope of the
54         // class in which it was declared.
55         return ClassScope.make(getEnclosingClass());
56     }
57 
58     /**
59      * Factory method. Takes a {@code Constructor} object and creates a
60      * scope for it.
61      * @param c - A Constructor whose scope we want to obtain
62      * @return The type-variable scope for the constructor m
63      */
make(Constructor<?> c)64     public static ConstructorScope make(Constructor<?> c) {
65         return new ConstructorScope(c);
66     }
67 }
68