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 FunctionTree(Cursor c) { 34 this(c, c.spelling()); 35 } 36 37 private FunctionTree(Cursor c, String name) { 38 super(c, name); 39 } 40 41 @Override 42 public FunctionTree withName(String newName) { 43 return name().equals(newName)? this : new FunctionTree(cursor(), newName); 44 } 45 46 @Override 47 public <R,D> R accept(TreeVisitor<R,D> visitor, D data) { 48 return visitor.visitFunction(this, data); 49 } 50 51 public boolean isVariadic() { 52 return type().isVariadic(); 53 } 54 55 public List<Type> paramTypes() { 56 Type t = type(); 57 int numParams = t.numberOfArgs(); 58 List<Type> res = new ArrayList<>(numParams); 59 for (int i = 0; i < numParams; i++) { 60 res.add(t.argType(i)); 61 } 62 return Collections.unmodifiableList(res); 63 } 64 65 public int numParams() { 66 return type().numberOfArgs(); 67 } 68 69 public Type paramType(int idx) { 70 return type().argType(idx); 71 } 72 73 public String paramName(int idx) { 74 return cursor().getArgument(idx).spelling(); 75 } 76 77 public Type returnType() { 78 return type().resultType(); 79 } 80 81 public Function function() { 82 return LayoutUtils.getFunction(type()); 83 } 84 }