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#!/usr/bin/perl |
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|
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use strict; |
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|
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print <<EOF; |
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// THIS IS A GENERATED FILE: RUN callback.pl to regenerate it |
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// THIS IS A GENERATED FILE: callback.pl is part of the GVPE |
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// THIS IS A GENERATED FILE: distribution. |
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|
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/* |
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callback.h -- C++ callback mechanism |
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Copyright (C) 2003-2007 Marc Lehmann <pcg\@goof.com> |
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|
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This file is part of GVPE. |
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|
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GVPE is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with gvpe; if not, write to the Free Software |
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Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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#ifndef CALLBACK_H__ |
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#define CALLBACK_H__ |
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|
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#define CALLBACK_H_VERSION 3 |
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|
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template<typename signature> |
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struct callback; |
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|
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EOF |
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|
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for my $a (0..10) { |
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my $CLASS = join "", map ", class A$_", 1..$a; |
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my $TYPE = join ", ", map "A$_", 1..$a; |
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my $ARG = join ", ", map "a$_", 1..$a; |
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my $TYPEARG = join ", ", map "A$_ a$_", 1..$a; |
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my $TYPEDEFS = join " ", map "typedef A$_ arg$_\_type;", 1..$a; |
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my $TYPEvoid = $TYPE ? $TYPE : "void"; |
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my $_ARG = $ARG ? ", $ARG" : ""; |
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my $_TYPE = $TYPE ? ", $TYPE" : ""; |
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my $_TYPEARG = $TYPEARG ? ", $TYPEARG" : ""; |
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my $_TTYPE = $a ? join "", map ", typename T::arg$_\_type", 1..$a : ""; |
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|
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print <<EOF; |
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template<class R$CLASS> |
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struct callback<R ($TYPE)> |
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{ |
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typedef R (*ptr_type)(void *self$_TYPE); |
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|
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private: |
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|
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void *self; |
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ptr_type func; |
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|
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protected: |
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|
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template<typename method> |
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struct thunktype; |
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|
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template<class klass> |
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struct thunktype<R (klass::*)> |
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{ |
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typedef klass K; |
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}; |
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|
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template<class klass, R (klass::*method)($TYPE)> |
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static R thunk (void *self$_TYPEARG) |
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{ |
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klass *obj = static_cast<klass *>(self); |
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return (obj->*method) ($ARG); |
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} |
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|
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public: |
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template<class K, R (K::*method)($TYPE)> |
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void set (K *object) |
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{ |
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self = object; |
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func = thunk<K, method>; |
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} |
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|
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R call ($TYPEARG) const |
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{ |
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return func (self$_ARG); |
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} |
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|
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R operator ()($TYPEARG) const |
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{ |
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return call ($ARG); |
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} |
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}; |
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|
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EOF |
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} |
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|
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print <<EOF |
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|
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#endif |
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EOF |
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|
