src/share/classes/java/lang/invoke/DirectMethodHandle.java

*** 255,270 ****
          final int LINKER_CALL = nameCursor++;
          Name[] names = arguments(nameCursor - ARG_LIMIT, mtype.invokerType());
          assert(names.length == nameCursor);
          if (doesAlloc) {
              // names = { argx,y,z,... new C, init method }
!             names[NEW_OBJ] = new Name(NF_allocateInstance, names[DMH_THIS]);
!             names[GET_MEMBER] = new Name(NF_constructorMethod, names[DMH_THIS]);
          } else if (needsInit) {
!             names[GET_MEMBER] = new Name(NF_internalMemberNameEnsureInit, names[DMH_THIS]);
          } else {
!             names[GET_MEMBER] = new Name(NF_internalMemberName, names[DMH_THIS]);
          }
          Object[] outArgs = Arrays.copyOfRange(names, ARG_BASE, GET_MEMBER+1, Object[].class);
          assert(outArgs[outArgs.length-1] == names[GET_MEMBER]);  // look, shifted args!
          int result = LambdaForm.LAST_RESULT;
          if (doesAlloc) {
--- 255,270 ----
          final int LINKER_CALL = nameCursor++;
          Name[] names = arguments(nameCursor - ARG_LIMIT, mtype.invokerType());
          assert(names.length == nameCursor);
          if (doesAlloc) {
              // names = { argx,y,z,... new C, init method }
!             names[NEW_OBJ] = new Name(NF.allocateInstance, names[DMH_THIS]);
!             names[GET_MEMBER] = new Name(NF.constructorMethod, names[DMH_THIS]);
          } else if (needsInit) {
!             names[GET_MEMBER] = new Name(NF.internalMemberNameEnsureInit, names[DMH_THIS]);
          } else {
!             names[GET_MEMBER] = new Name(NF.internalMemberName, names[DMH_THIS]);
          }
          Object[] outArgs = Arrays.copyOfRange(names, ARG_BASE, GET_MEMBER+1, Object[].class);
          assert(outArgs[outArgs.length-1] == names[GET_MEMBER]);  // look, shifted args!
          int result = LambdaForm.LAST_RESULT;
          if (doesAlloc) {
*** 635,705 ****
          final int LINKER_CALL = nameCursor++;
          final int POST_CAST = (needsCast && isGetter ? nameCursor++ : -1);
          final int RESULT    = nameCursor-1;  // either the call or the cast
          Name[] names = arguments(nameCursor - ARG_LIMIT, mtype.invokerType());
          if (needsInit)
!             names[INIT_BAR] = new Name(NF_ensureInitialized, names[DMH_THIS]);
          if (needsCast && !isGetter)
!             names[PRE_CAST] = new Name(NF_checkCast, names[DMH_THIS], names[SET_VALUE]);
          Object[] outArgs = new Object[1 + linkerType.parameterCount()];
          assert(outArgs.length == (isGetter ? 3 : 4));
          outArgs[0] = UNSAFE;
          if (isStatic) {
!             outArgs[1] = names[F_HOLDER]  = new Name(NF_staticBase, names[DMH_THIS]);
!             outArgs[2] = names[F_OFFSET]  = new Name(NF_staticOffset, names[DMH_THIS]);
          } else {
!             outArgs[1] = names[OBJ_CHECK] = new Name(NF_checkBase, names[OBJ_BASE]);
!             outArgs[2] = names[F_OFFSET]  = new Name(NF_fieldOffset, names[DMH_THIS]);
          }
          if (!isGetter) {
              outArgs[3] = (needsCast ? names[PRE_CAST] : names[SET_VALUE]);
          }
          for (Object a : outArgs)  assert(a != null);
          names[LINKER_CALL] = new Name(linker, outArgs);
          if (needsCast && isGetter)
!             names[POST_CAST] = new Name(NF_checkCast, names[DMH_THIS], names[LINKER_CALL]);
          for (Name n : names)  assert(n != null);
          String fieldOrStatic = (isStatic ? "Static" : "Field");
          String lambdaName = (linkerName + fieldOrStatic);  // significant only for debugging
          if (needsCast)  lambdaName += "Cast";
          if (needsInit)  lambdaName += "Init";
          return new LambdaForm(lambdaName, ARG_LIMIT, names, RESULT);
      }
  
!     private static final NamedFunction
!             NF_internalMemberName,
!             NF_internalMemberNameEnsureInit,
!             NF_ensureInitialized,
!             NF_fieldOffset,
!             NF_checkBase,
!             NF_staticBase,
!             NF_staticOffset,
!             NF_checkCast,
!             NF_allocateInstance,
!             NF_constructorMethod;
      static {
          try {
              NamedFunction nfs[] = {
!                 NF_internalMemberName = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("internalMemberName", Object.class)),
!                 NF_internalMemberNameEnsureInit = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("internalMemberNameEnsureInit", Object.class)),
!                 NF_ensureInitialized = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("ensureInitialized", Object.class)),
!                 NF_fieldOffset = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("fieldOffset", Object.class)),
!                 NF_checkBase = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("checkBase", Object.class)),
!                 NF_staticBase = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("staticBase", Object.class)),
!                 NF_staticOffset = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("staticOffset", Object.class)),
!                 NF_checkCast = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("checkCast", Object.class, Object.class)),
!                 NF_allocateInstance = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("allocateInstance", Object.class)),
!                 NF_constructorMethod = new NamedFunction(DirectMethodHandle.class
                      .getDeclaredMethod("constructorMethod", Object.class))
              };
              for (NamedFunction nf : nfs) {
                  // Each nf must be statically invocable or we get tied up in our bootstraps.
                  assert(InvokerBytecodeGenerator.isStaticallyInvocable(nf.member)) : nf;
--- 635,710 ----
          final int LINKER_CALL = nameCursor++;
          final int POST_CAST = (needsCast && isGetter ? nameCursor++ : -1);
          final int RESULT    = nameCursor-1;  // either the call or the cast
          Name[] names = arguments(nameCursor - ARG_LIMIT, mtype.invokerType());
          if (needsInit)
!             names[INIT_BAR] = new Name(NF.ensureInitialized, names[DMH_THIS]);
          if (needsCast && !isGetter)
!             names[PRE_CAST] = new Name(NF.checkCast, names[DMH_THIS], names[SET_VALUE]);
          Object[] outArgs = new Object[1 + linkerType.parameterCount()];
          assert(outArgs.length == (isGetter ? 3 : 4));
          outArgs[0] = UNSAFE;
          if (isStatic) {
!             outArgs[1] = names[F_HOLDER]  = new Name(NF.staticBase, names[DMH_THIS]);
!             outArgs[2] = names[F_OFFSET]  = new Name(NF.staticOffset, names[DMH_THIS]);
          } else {
!             outArgs[1] = names[OBJ_CHECK] = new Name(NF.checkBase, names[OBJ_BASE]);
!             outArgs[2] = names[F_OFFSET]  = new Name(NF.fieldOffset, names[DMH_THIS]);
          }
          if (!isGetter) {
              outArgs[3] = (needsCast ? names[PRE_CAST] : names[SET_VALUE]);
          }
          for (Object a : outArgs)  assert(a != null);
          names[LINKER_CALL] = new Name(linker, outArgs);
          if (needsCast && isGetter)
!             names[POST_CAST] = new Name(NF.checkCast, names[DMH_THIS], names[LINKER_CALL]);
          for (Name n : names)  assert(n != null);
          String fieldOrStatic = (isStatic ? "Static" : "Field");
          String lambdaName = (linkerName + fieldOrStatic);  // significant only for debugging
          if (needsCast)  lambdaName += "Cast";
          if (needsInit)  lambdaName += "Init";
          return new LambdaForm(lambdaName, ARG_LIMIT, names, RESULT);
      }
  
!     /**
!      * Pre-initialized NamedFunctions for bootstrapping purposes.
!      * Factored in an inner class to delay initialization until first usage.
!      */
!     private static class NF {
!         static final NamedFunction
!                 internalMemberName,
!                 internalMemberNameEnsureInit,
!                 ensureInitialized,
!                 fieldOffset,
!                 checkBase,
!                 staticBase,
!                 staticOffset,
!                 checkCast,
!                 allocateInstance,
!                 constructorMethod;
          static {
              try {
                  NamedFunction nfs[] = {
!                         internalMemberName = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("internalMemberName", Object.class)),
!                         internalMemberNameEnsureInit = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("internalMemberNameEnsureInit", Object.class)),
!                         ensureInitialized = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("ensureInitialized", Object.class)),
!                         fieldOffset = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("fieldOffset", Object.class)),
!                         checkBase = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("checkBase", Object.class)),
!                         staticBase = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("staticBase", Object.class)),
!                         staticOffset = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("staticOffset", Object.class)),
!                         checkCast = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("checkCast", Object.class, Object.class)),
!                         allocateInstance = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("allocateInstance", Object.class)),
!                         constructorMethod = new NamedFunction(DirectMethodHandle.class
                                  .getDeclaredMethod("constructorMethod", Object.class))
                  };
                  for (NamedFunction nf : nfs) {
                      // Each nf must be statically invocable or we get tied up in our bootstraps.
                      assert(InvokerBytecodeGenerator.isStaticallyInvocable(nf.member)) : nf;
*** 707,712 ****
--- 712,718 ----
                  }
              } catch (ReflectiveOperationException ex) {
                  throw newInternalError(ex);
              }
          }
+     }
  }