1 /* 2 * Copyright (c) 2016, 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 package jdk.internal.nicl.types; 25 26 import java.util.Arrays; 27 import java.util.stream.Stream; 28 29 public class Function implements Type { 30 final Type[] arguments; 31 final Type returnType; 32 final boolean isVarArg; 33 34 public Function(Type[] args, Type returnType, boolean isVarArg) { 35 this.arguments = args; 36 this.returnType = returnType; 37 this.isVarArg = isVarArg; 38 } 39 40 public boolean isVarArg() { 41 return isVarArg; 42 } 43 44 public Stream<Type> arguments() { 45 return Stream.of(arguments); 46 } 47 48 public int argumentCount() { 49 return arguments.length; 50 } 51 52 public Type getArgumentType(int index) { 53 return arguments[index]; 54 } 55 56 public Type getReturnType() { 57 return returnType; 58 } 59 60 @Override 61 public long getSize() { 62 throw new UnsupportedOperationException("Function type has no size"); 63 } 64 65 @Override 66 public int hashCode() { 67 return (returnType.hashCode() * 31 + Arrays.hashCode(arguments)) << 1 + (isVarArg ? 1 : 0); 68 } 69 70 @Override 71 public boolean equals(Object o) { 72 if (!(o instanceof jdk.internal.nicl.types.Function)) { 73 return false; 74 } 75 jdk.internal.nicl.types.Function other = (jdk.internal.nicl.types.Function) o; 76 if (!other.returnType.equals(returnType)) { 77 return false; 78 } 79 if (other.isVarArg != isVarArg) { 80 return false; 81 } 82 if (other.arguments.length != arguments.length) { 83 return false; 84 } 85 for (int i = 0; i < arguments.length; i++) { 86 if (!arguments[i].equals(other.arguments[i])) { 87 return false; 88 } 89 } 90 return true; 91 } 92 93 @Override 94 public String toString() { 95 StringBuffer sb = new StringBuffer(); 96 sb.append('('); 97 for (Type arg : arguments) { 98 sb.append(arg.toString()); 99 } 100 if (isVarArg) { 101 sb.append('*'); 102 } 103 sb.append(')'); 104 sb.append(returnType.toString()); 105 return sb.toString(); 106 } 107 } --- EOF ---