1 /*

     2  * Copyright (c) 1999, 2015, 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 

    25 #ifndef SHARE_VM_CI_CISIGNATURE_HPP

    26 #define SHARE_VM_CI_CISIGNATURE_HPP

    27 

    28 #include "ci/ciClassList.hpp"

    29 #include "ci/ciSymbol.hpp"

    30 #include "utilities/globalDefinitions.hpp"

    31 #include "utilities/growableArray.hpp"

    32 

    33 // ciSignature

    34 //

    35 // This class represents the signature of a method.

    36 class ciSignature : public ResourceObj {

    37 private:

    38   ciSymbol* _symbol;

    39   ciKlass*  _accessing_klass;

    40 

    41   GrowableArray<ciType*>* _types;

    42   int _size;   // number of stack slots required for arguments

    43   int _count;  // number of parameter types in the signature

    44 

    45   friend class ciMethod;

    46   friend class ciBytecodeStream;

    47   friend class ciObjectFactory;

    48 

    49   ciSignature(ciKlass* accessing_klass, const constantPoolHandle& cpool, ciSymbol* signature);

    50   ciSignature(ciKlass* accessing_klass,                           ciSymbol* signature, ciMethodType* method_type);

    51 

    52   void get_all_klasses();

    53 

    54   Symbol* get_symbol() const                     { return _symbol->get_symbol(); }

    55 

    56 public:

    57   ciSymbol* as_symbol() const                    { return _symbol; }

    58   ciKlass*  accessing_klass() const              { return _accessing_klass; }

    59 

    60   ciType*   return_type() const;

    61   ciType*   type_at(int index) const;

    62 

    63   int       size() const                         { return _size; }

    64   int       count() const                        { return _count; }

    65 

    66   int       arg_size_for_bc(Bytecodes::Code bc)  { return size() + (Bytecodes::has_receiver(bc) ? 1 : 0); }

    67 

    68   bool equals(ciSignature* that);

    69 

    70   void print_signature();

    71   void print();

    72 };

    73 

    74 #endif // SHARE_VM_CI_CISIGNATURE_HPP