org.jikesrvm.compilers.opt.inlining
Class InterfaceHierarchy

java.lang.Object
  org.jikesrvm.compilers.opt.inlining.InterfaceHierarchy

public class InterfaceHierarchy
extends Object

This class holds, for each interface, the set of initialized classes that implement the interface.

interfaceMapping

private static final ImmutableEntryHashMapRVM<RVMClass,ImmutableEntryHashSetRVM<RVMClass>> interfaceMapping

a mapping from RVMClass (an interface) to a set of classes that claim to implement this interface.

InterfaceHierarchy

public InterfaceHierarchy()

notifyClassInitialized

public static void notifyClassInitialized(RVMClass c)

Notify this dictionary that a new class has been initialized. This method updates the dictionary to record the interface implementors.

noteImplements

private static void noteImplements(RVMClass c,
                                   RVMClass I)

Note that class c implements interface I;

findOrCreateSet

private static ImmutableEntryHashSetRVM<RVMClass> findOrCreateSet(RVMClass I)

Return the set of classes that implement a given interface. Create a set if none found.

allImplementors

private static ImmutableEntryHashSetRVM<RVMClass> allImplementors(RVMClass I)

Return the set of all classes known to implement interface I.

allSubClasses

private static ImmutableEntryHashSetRVM<RVMClass> allSubClasses(RVMClass C)

Return the set of all classes known to extend C

getUniqueImplementation

public static RVMMethod getUniqueImplementation(RVMMethod foo)

If, in the current class hierarchy, there is exactly one method that defines the interface method foo, then return the unique implementation. If there is not a unique implementation, return null.