@Specialization
public Object construct(VirtualFrame frame, RubyHash hash, Object index) {
final Object value = hash.get(index);
if (value == null) {
if (hash.defaultBlock == null) {
return NilPlaceholder.INSTANCE;
} else {
return hash.defaultBlock.call(frame.pack(), hash, index);
}
} else {
return value;
}
}
@Override
public Object execute(VirtualFrame frame) {
final RubyArguments rubyArguments = frame.getArguments(RubyArguments.class);
final Object[] arguments = rubyArguments.getArguments();
final RubyClass arrayClass = getContext().getCoreLibrary().getArrayClass();
if (arguments.length <= index) {
return new RubyArray(arrayClass);
} else if (index == 0) {
return new RubyArray(arrayClass, new ObjectArrayStore(arguments));
} else {
return new RubyArray(
arrayClass, new ObjectArrayStore(Arrays.copyOfRange(arguments, index, arguments.length)));
}
}