1 /* 2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "ci/ciClassList.hpp" 27 #include "ci/ciInstance.hpp" 28 #include "ci/ciMethodData.hpp" 29 #include "ci/ciMethodHandle.hpp" 30 #include "ci/ciUtilities.hpp" 31 #include "prims/methodHandleWalk.hpp" 32 #include "prims/methodHandles.hpp" 33 34 // ciMethodHandle 35 36 // ------------------------------------------------------------------ 37 // ciMethodHandle::get_adapter 38 // 39 // Return an adapter for this MethodHandle. 40 ciMethod* ciMethodHandle::get_adapter_impl(bool is_invokedynamic) const { 41 VM_ENTRY_MARK; 42 Handle h(get_oop()); 43 methodHandle callee(_callee->get_methodOop()); 44 assert(callee->is_method_handle_invoke(), ""); 45 oop mt1 = callee->method_handle_type(); 46 oop mt2 = java_lang_invoke_MethodHandle::type(h()); 47 if (!java_lang_invoke_MethodType::equals(mt1, mt2)) { 48 if (PrintMiscellaneous && (Verbose || WizardMode)) { 49 tty->print_cr("ciMethodHandle::get_adapter: types not equal"); 50 mt1->print(); mt2->print(); 51 } 52 return NULL; 53 } 54 // We catch all exceptions here that could happen in the method 55 // handle compiler and stop the VM. 56 MethodHandleCompiler mhc(h, callee->name(), callee->signature(), _profile.count(), is_invokedynamic, THREAD); 57 if (!HAS_PENDING_EXCEPTION) { 58 methodHandle m = mhc.compile(THREAD); 59 if (!HAS_PENDING_EXCEPTION) { 60 return CURRENT_ENV->get_object(m())->as_method(); 61 } 62 } 63 if (PrintMiscellaneous && (Verbose || WizardMode)) { 64 tty->print("*** ciMethodHandle::get_adapter => "); 65 PENDING_EXCEPTION->print(); 66 tty->print("*** get_adapter (%s): ", is_invokedynamic ? "indy" : "mh"); ((ciObject*)this)->print(); 67 } 68 CLEAR_PENDING_EXCEPTION; 69 return NULL; 70 } 71 72 // ------------------------------------------------------------------ 73 // ciMethodHandle::get_adapter 74 // 75 // Return an adapter for this MethodHandle. 76 ciMethod* ciMethodHandle::get_adapter(bool is_invokedynamic) const { 77 ciMethod* result = get_adapter_impl(is_invokedynamic); 78 if (result) { 79 // Fake up the MDO maturity. 80 ciMethodData* mdo = result->method_data(); 81 if (mdo != NULL && _caller->method_data() != NULL && _caller->method_data()->is_mature()) { 82 mdo->set_mature(); 83 } 84 } 85 return result; 86 } 87 88 89 // ------------------------------------------------------------------ 90 // ciMethodHandle::print_impl 91 // 92 // Implementation of the print method. 93 void ciMethodHandle::print_impl(outputStream* st) { 94 st->print(" type="); 95 get_oop()->print(); 96 }