1 /* 2 * Copyright (c) 2018, 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 com.sun.tools.jextract.tree; 24 25 import java.foreign.layout.Function; 26 import java.util.Collections; 27 import java.util.List; 28 import java.util.ArrayList; 29 import jdk.internal.clang.Cursor; 30 import jdk.internal.clang.Type; 31 32 public class FunctionTree extends Tree { 33 public FunctionTree(Cursor c) { 34 super(c); 35 } 36 37 @Override 38 public <R,D> R accept(TreeVisitor<R,D> visitor, D data) { 39 return visitor.visitFunction(this, data); 40 } 41 42 public boolean isVariadic() { 43 return type().isVariadic(); 44 } 45 46 public List<Type> paramTypes() { 47 Type t = type(); 48 int numParams = t.numberOfArgs(); 49 List<Type> res = new ArrayList<>(numParams); 50 for (int i = 0; i < numParams; i++) { 51 res.add(t.argType(i)); 52 } 53 return Collections.unmodifiableList(res); 54 } 55 56 public int numParams() { 57 return type().numberOfArgs(); 58 } 59 60 public Type paramType(int idx) { 61 return type().argType(idx); 62 } 63 64 public String paramName(int idx) { 65 return cursor().getArgument(idx).spelling(); 66 } 67 68 public Type returnType() { 69 return type().resultType(); 70 } 71 72 public Function function() { 73 return LayoutUtils.getFunction(type()); 74 } 75 }