340 for (; ms < me; ms++) {
341 Method* m = iklass->methods()->at(ms);
342 int required = JVM_ACC_NATIVE | JVM_ACC_VARARGS;
343 int flags = m->access_flags().as_int();
344 if ((flags & required) == required && ArgumentCount(m->signature()).size() == 1) {
345 return true;
346 }
347 }
348 return false;
349 }
350
351
352 Symbol* MethodHandles::signature_polymorphic_intrinsic_name(vmIntrinsics::ID iid) {
353 assert(is_signature_polymorphic_intrinsic(iid), "%d %s", iid, vmIntrinsics::name_at(iid));
354 switch (iid) {
355 case vmIntrinsics::_invokeBasic: return vmSymbols::invokeBasic_name();
356 case vmIntrinsics::_linkToVirtual: return vmSymbols::linkToVirtual_name();
357 case vmIntrinsics::_linkToStatic: return vmSymbols::linkToStatic_name();
358 case vmIntrinsics::_linkToSpecial: return vmSymbols::linkToSpecial_name();
359 case vmIntrinsics::_linkToInterface: return vmSymbols::linkToInterface_name();
360 }
361 fatal("unexpected intrinsic id: %d %s", iid, vmIntrinsics::name_at(iid));
362 return 0;
363 }
364
365 Bytecodes::Code MethodHandles::signature_polymorphic_intrinsic_bytecode(vmIntrinsics::ID id) {
366 switch(id) {
367 case vmIntrinsics::_linkToVirtual: return Bytecodes::_invokevirtual;
368 case vmIntrinsics::_linkToInterface: return Bytecodes::_invokeinterface;
369 case vmIntrinsics::_linkToStatic: return Bytecodes::_invokestatic;
370 case vmIntrinsics::_linkToSpecial: return Bytecodes::_invokespecial;
371 case vmIntrinsics::_invokeBasic: return Bytecodes::_invokehandle;
372 default:
373 fatal("unexpected id: (%d) %s", (uint)id, vmIntrinsics::name_at(id));
374 return Bytecodes::_illegal;
375 }
376 }
377
378 int MethodHandles::signature_polymorphic_intrinsic_ref_kind(vmIntrinsics::ID iid) {
379 switch (iid) {
380 case vmIntrinsics::_invokeBasic: return 0;
381 case vmIntrinsics::_linkToVirtual: return JVM_REF_invokeVirtual;
382 case vmIntrinsics::_linkToStatic: return JVM_REF_invokeStatic;
383 case vmIntrinsics::_linkToSpecial: return JVM_REF_invokeSpecial;
384 case vmIntrinsics::_linkToInterface: return JVM_REF_invokeInterface;
385 }
386 fatal("unexpected intrinsic id: %d %s", iid, vmIntrinsics::name_at(iid));
387 return 0;
388 }
389
390 vmIntrinsics::ID MethodHandles::signature_polymorphic_name_id(Symbol* name) {
391 vmSymbols::SID name_id = vmSymbols::find_sid(name);
392 switch (name_id) {
393 // The ID _invokeGeneric stands for all non-static signature-polymorphic methods, except built-ins.
394 case vmSymbols::VM_SYMBOL_ENUM_NAME(invoke_name): return vmIntrinsics::_invokeGeneric;
395 // The only built-in non-static signature-polymorphic method is MethodHandle.invokeBasic:
396 case vmSymbols::VM_SYMBOL_ENUM_NAME(invokeBasic_name): return vmIntrinsics::_invokeBasic;
397
398 // There is one static signature-polymorphic method for each JVM invocation mode.
399 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToVirtual_name): return vmIntrinsics::_linkToVirtual;
400 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToStatic_name): return vmIntrinsics::_linkToStatic;
401 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToSpecial_name): return vmIntrinsics::_linkToSpecial;
402 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToInterface_name): return vmIntrinsics::_linkToInterface;
403 }
404
405 // Cover the case of invokeExact and any future variants of invokeFoo.
406 Klass* mh_klass = SystemDictionary::well_known_klass(
407 SystemDictionary::WK_KLASS_ENUM_NAME(MethodHandle_klass) );
408 if (mh_klass != NULL && is_method_handle_invoke_name(mh_klass, name)) {
409 return vmIntrinsics::_invokeGeneric;
410 }
411
412 // Cover the case of methods on VarHandle.
413 Klass* vh_klass = SystemDictionary::well_known_klass(
414 SystemDictionary::WK_KLASS_ENUM_NAME(VarHandle_klass) );
415 if (vh_klass != NULL && is_method_handle_invoke_name(vh_klass, name)) {
416 return vmIntrinsics::_invokeGeneric;
417 }
418
419 // Note: The pseudo-intrinsic _compiledLambdaForm is never linked against.
420 // Instead it is used to mark lambda forms bound to invokehandle or invokedynamic.
421 return vmIntrinsics::_none;
422 }
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340 for (; ms < me; ms++) {
341 Method* m = iklass->methods()->at(ms);
342 int required = JVM_ACC_NATIVE | JVM_ACC_VARARGS;
343 int flags = m->access_flags().as_int();
344 if ((flags & required) == required && ArgumentCount(m->signature()).size() == 1) {
345 return true;
346 }
347 }
348 return false;
349 }
350
351
352 Symbol* MethodHandles::signature_polymorphic_intrinsic_name(vmIntrinsics::ID iid) {
353 assert(is_signature_polymorphic_intrinsic(iid), "%d %s", iid, vmIntrinsics::name_at(iid));
354 switch (iid) {
355 case vmIntrinsics::_invokeBasic: return vmSymbols::invokeBasic_name();
356 case vmIntrinsics::_linkToVirtual: return vmSymbols::linkToVirtual_name();
357 case vmIntrinsics::_linkToStatic: return vmSymbols::linkToStatic_name();
358 case vmIntrinsics::_linkToSpecial: return vmSymbols::linkToSpecial_name();
359 case vmIntrinsics::_linkToInterface: return vmSymbols::linkToInterface_name();
360 default:
361 fatal("unexpected intrinsic id: %d %s", iid, vmIntrinsics::name_at(iid));
362 return 0;
363 }
364 }
365
366 Bytecodes::Code MethodHandles::signature_polymorphic_intrinsic_bytecode(vmIntrinsics::ID id) {
367 switch(id) {
368 case vmIntrinsics::_linkToVirtual: return Bytecodes::_invokevirtual;
369 case vmIntrinsics::_linkToInterface: return Bytecodes::_invokeinterface;
370 case vmIntrinsics::_linkToStatic: return Bytecodes::_invokestatic;
371 case vmIntrinsics::_linkToSpecial: return Bytecodes::_invokespecial;
372 case vmIntrinsics::_invokeBasic: return Bytecodes::_invokehandle;
373 default:
374 fatal("unexpected id: (%d) %s", (uint)id, vmIntrinsics::name_at(id));
375 return Bytecodes::_illegal;
376 }
377 }
378
379 int MethodHandles::signature_polymorphic_intrinsic_ref_kind(vmIntrinsics::ID iid) {
380 switch (iid) {
381 case vmIntrinsics::_invokeBasic: return 0;
382 case vmIntrinsics::_linkToVirtual: return JVM_REF_invokeVirtual;
383 case vmIntrinsics::_linkToStatic: return JVM_REF_invokeStatic;
384 case vmIntrinsics::_linkToSpecial: return JVM_REF_invokeSpecial;
385 case vmIntrinsics::_linkToInterface: return JVM_REF_invokeInterface;
386 default:
387 fatal("unexpected intrinsic id: %d %s", iid, vmIntrinsics::name_at(iid));
388 return 0;
389 }
390 }
391
392 vmIntrinsics::ID MethodHandles::signature_polymorphic_name_id(Symbol* name) {
393 vmSymbols::SID name_id = vmSymbols::find_sid(name);
394 switch (name_id) {
395 // The ID _invokeGeneric stands for all non-static signature-polymorphic methods, except built-ins.
396 case vmSymbols::VM_SYMBOL_ENUM_NAME(invoke_name): return vmIntrinsics::_invokeGeneric;
397 // The only built-in non-static signature-polymorphic method is MethodHandle.invokeBasic:
398 case vmSymbols::VM_SYMBOL_ENUM_NAME(invokeBasic_name): return vmIntrinsics::_invokeBasic;
399
400 // There is one static signature-polymorphic method for each JVM invocation mode.
401 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToVirtual_name): return vmIntrinsics::_linkToVirtual;
402 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToStatic_name): return vmIntrinsics::_linkToStatic;
403 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToSpecial_name): return vmIntrinsics::_linkToSpecial;
404 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToInterface_name): return vmIntrinsics::_linkToInterface;
405 default: break;
406 }
407
408 // Cover the case of invokeExact and any future variants of invokeFoo.
409 Klass* mh_klass = SystemDictionary::well_known_klass(
410 SystemDictionary::WK_KLASS_ENUM_NAME(MethodHandle_klass) );
411 if (mh_klass != NULL && is_method_handle_invoke_name(mh_klass, name)) {
412 return vmIntrinsics::_invokeGeneric;
413 }
414
415 // Cover the case of methods on VarHandle.
416 Klass* vh_klass = SystemDictionary::well_known_klass(
417 SystemDictionary::WK_KLASS_ENUM_NAME(VarHandle_klass) );
418 if (vh_klass != NULL && is_method_handle_invoke_name(vh_klass, name)) {
419 return vmIntrinsics::_invokeGeneric;
420 }
421
422 // Note: The pseudo-intrinsic _compiledLambdaForm is never linked against.
423 // Instead it is used to mark lambda forms bound to invokehandle or invokedynamic.
424 return vmIntrinsics::_none;
425 }
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