Batch of classes necessary to implement invoke dynamic interfaces. Taken from JDK8 build 132
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26 package java.lang.invoke;
28 import static java.lang.invoke.LambdaForm.*;
29 import static java.lang.invoke.MethodHandleNatives.Constants.*;
30 import java.util.logging.Level;
31 import java.util.logging.Logger;
34 * A method handle whose behavior is determined only by its LambdaForm.
37 final class SimpleMethodHandle extends MethodHandle {
38 private SimpleMethodHandle(MethodType type, LambdaForm form) {
42 /*non-public*/ static SimpleMethodHandle make(MethodType type, LambdaForm form) {
43 return new SimpleMethodHandle(type, form);
47 MethodHandle bindArgument(int pos, char basicType, Object value) {
48 MethodType type2 = type().dropParameterTypes(pos, pos+1);
49 LambdaForm form2 = internalForm().bind(1+pos, BoundMethodHandle.SpeciesData.EMPTY);
50 return BoundMethodHandle.bindSingle(type2, form2, basicType, value);
54 MethodHandle dropArguments(MethodType srcType, int pos, int drops) {
55 LambdaForm newForm = internalForm().addArguments(pos, srcType.parameterList().subList(pos, pos+drops));
56 return new SimpleMethodHandle(srcType, newForm);
60 MethodHandle permuteArguments(MethodType newType, int[] reorder) {
61 LambdaForm form2 = internalForm().permuteArguments(1, reorder, basicTypes(newType.parameterList()));
62 return new SimpleMethodHandle(newType, form2);
66 MethodHandle copyWith(MethodType mt, LambdaForm lf) {
67 return new SimpleMethodHandle(mt, lf);