1 /*
   2  * Copyright (c) 2014, 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.clang;
  25 
  26 import clang.Index.CXType;
  27 import java.foreign.Scope;
  28 import java.foreign.memory.Pointer;
  29 
  30 public class Type {
  31     private final CXType type;
  32     Type(CXType type) {
  33         this.type = type;
  34     }
  35 
  36     // Function Types
  37     public boolean isVariadic() {
  38         return LibClang.lib.clang_isFunctionTypeVariadic(type) != 0;
  39     }
  40     public Type resultType() {
  41         return new Type(LibClang.lib.clang_getResultType(type));
  42     }
  43     public int numberOfArgs() {
  44         return LibClang.lib.clang_getNumArgTypes(type);
  45     }
  46     public Type argType(int idx) {
  47         return new Type(LibClang.lib.clang_getArgType(type, idx));
  48     }
  49     private int getCallingConvention1() {
  50         return LibClang.lib.clang_getFunctionTypeCallingConv(type);
  51     }
  52 
  53     public CallingConvention getCallingConvention() {
  54         int v = getCallingConvention1();
  55         return CallingConvention.valueOf(v);
  56     }
  57 
  58     // Pointer type
  59     public Type getPointeeType() {
  60         return new Type(LibClang.lib.clang_getPointeeType(type));
  61     }
  62 
  63     // array/vector type
  64     public Type getElementType() {
  65         return new Type(LibClang.lib.clang_getElementType(type));
  66     }
  67     public long getNumberOfElements() {
  68         return LibClang.lib.clang_getNumElements(type);
  69     }
  70 
  71     // Struct/RecordType
  72     public long getOffsetOf(String fieldName) {
  73         try (Scope s = Scope.newNativeScope()) {
  74             Pointer<Byte> cfname = s.toCString(fieldName);
  75             return LibClang.lib.clang_Type_getOffsetOf(type, cfname);
  76         }
  77     }
  78 
  79     // Typedef
  80     public Type canonicalType() {
  81         return new Type(LibClang.lib.clang_getCanonicalType(type));
  82     }
  83 
  84     public String spelling() {
  85         return LibClang.CXStrToString(LibClang.lib.clang_getTypeSpelling(type));
  86     }
  87 
  88     public int kind1() {
  89         return type.kind$get();
  90     }
  91 
  92     public long size() {
  93         return LibClang.lib.clang_Type_getSizeOf(type);
  94     }
  95 
  96     public TypeKind kind() {
  97         int v = kind1();
  98         return TypeKind.valueOf(v);
  99     }
 100 
 101     public Cursor getDeclarationCursor() {
 102         return new Cursor(LibClang.lib.clang_getTypeDeclaration(type));
 103     }
 104 }