1 /*
   2  * Copyright (c) 2012, 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 package jdk.vm.ci.runtime.test;
  24 
  25 import java.lang.reflect.*;
  26 import java.util.*;
  27 
  28 import jdk.vm.ci.meta.*;
  29 import jdk.vm.ci.runtime.*;
  30 
  31 class NameAndSignature {
  32 
  33     public static final MetaAccessProvider metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
  34 
  35     final String name;
  36     final Class<?> returnType;
  37     final Class<?>[] parameterTypes;
  38 
  39     public NameAndSignature(Method m) {
  40         this.name = m.getName();
  41         this.returnType = m.getReturnType();
  42         this.parameterTypes = m.getParameterTypes();
  43     }
  44 
  45     @Override
  46     public boolean equals(Object obj) {
  47         if (obj instanceof NameAndSignature) {
  48             NameAndSignature s = (NameAndSignature) obj;
  49             return s.returnType == returnType && name.equals(s.name) && Arrays.equals(s.parameterTypes, parameterTypes);
  50         }
  51         return false;
  52     }
  53 
  54     @Override
  55     public int hashCode() {
  56         return name.hashCode();
  57     }
  58 
  59     @Override
  60     public String toString() {
  61         StringBuilder sb = new StringBuilder(name + "(");
  62         String sep = "";
  63         for (Class<?> p : parameterTypes) {
  64             sb.append(sep);
  65             sep = ", ";
  66             sb.append(p.getName());
  67         }
  68         return sb.append(')').append(returnType.getName()).toString();
  69     }
  70 
  71     public boolean signatureEquals(ResolvedJavaMethod m) {
  72         Signature s = m.getSignature();
  73         ResolvedJavaType declaringClass = m.getDeclaringClass();
  74         if (!s.getReturnType(declaringClass).resolve(declaringClass).equals(metaAccess.lookupJavaType(returnType))) {
  75             return false;
  76         }
  77         if (s.getParameterCount(false) != parameterTypes.length) {
  78             return false;
  79         }
  80         for (int i = 0; i < parameterTypes.length; i++) {
  81             if (!s.getParameterType(i, declaringClass).resolve(declaringClass).equals(metaAccess.lookupJavaType(parameterTypes[i]))) {
  82                 return false;
  83             }
  84         }
  85         return true;
  86     }
  87 }