| 1 | #!/usr/bin/perl |
1 | #!/usr/bin/perl |
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2 | |
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3 | use strict; |
| 2 | |
4 | |
| 3 | print <<EOF; |
5 | print <<EOF; |
| 4 | // THIS IS A GENERATED FILE: RUN callback.pl to regenerate it |
6 | // THIS IS A GENERATED FILE: RUN callback.pl to regenerate it |
| 5 | // THIS IS A GENERATED FILE: callback.pl is part of the GVPE |
7 | // THIS IS A GENERATED FILE: callback.pl is part of the GVPE |
| 6 | // THIS IS A GENERATED FILE: distribution. |
8 | // THIS IS A GENERATED FILE: distribution. |
| 7 | |
9 | |
| 8 | /* |
10 | /* |
| 9 | callback.h -- C++ callback mechanism |
11 | callback.h -- C++ callback mechanism |
| 10 | Copyright (C) 2003-2005 Marc Lehmann <pcg\@goof.com> |
12 | Copyright (C) 2003-2007 Marc Lehmann <pcg\@goof.com> |
| 11 | |
13 | |
| 12 | This file is part of GVPE. |
14 | This file is part of GVPE. |
| 13 | |
15 | |
| 14 | GVPE is free software; you can redistribute it and/or modify |
16 | GVPE is free software; you can redistribute it and/or modify |
| 15 | it under the terms of the GNU General Public License as published by |
17 | it under the terms of the GNU General Public License as published by |
| … | |
… | |
| 27 | */ |
29 | */ |
| 28 | |
30 | |
| 29 | #ifndef CALLBACK_H__ |
31 | #ifndef CALLBACK_H__ |
| 30 | #define CALLBACK_H__ |
32 | #define CALLBACK_H__ |
| 31 | |
33 | |
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34 | #define CALLBACK_H_VERSION 3 |
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35 | |
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36 | template<typename signature> |
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37 | struct callback; |
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38 | |
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39 | #define callback_set(callback,obj,klass,method) callback.set<klass, &klass::method> (obj) |
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40 | |
| 32 | EOF |
41 | EOF |
| 33 | |
42 | |
| 34 | for my $a (0..7) { |
43 | for my $a (0..10) { |
| 35 | my $CLASS = join "", map ", class A$_", 1..$a; |
44 | my $CLASS = join "", map ", class A$_", 1..$a; |
| 36 | my $TYPE = join ", ", map "A$_", 1..$a; |
45 | my $TYPE = join ", ", map "A$_", 1..$a; |
| 37 | my $ARG = join ", ", map "a$_", 1..$a; |
46 | my $ARG = join ", ", map "a$_", 1..$a; |
| 38 | my $TYPEARG = join ", ", map "A$_ a$_", 1..$a; |
47 | my $TYPEARG = join ", ", map "A$_ a$_", 1..$a; |
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48 | my $TYPEDEFS = join " ", map "typedef A$_ arg$_\_type;", 1..$a; |
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49 | my $TYPEvoid = $TYPE ? $TYPE : "void"; |
| 39 | my $_ARG = $ARG ? ", $ARG" : ""; |
50 | my $_ARG = $ARG ? ", $ARG" : ""; |
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51 | my $_TYPE = $TYPE ? ", $TYPE" : ""; |
| 40 | my $_TYPEARG = $TYPEARG ? ", $TYPEARG" : ""; |
52 | my $_TYPEARG = $TYPEARG ? ", $TYPEARG" : ""; |
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53 | my $_TTYPE = $a ? join "", map ", typename T::arg$_\_type", 1..$a : ""; |
| 41 | |
54 | |
| 42 | print <<EOF; |
55 | print <<EOF; |
| 43 | template<class R$CLASS> |
56 | template<class R$CLASS> |
| 44 | class callback$a { |
57 | struct callback<R ($TYPE)> |
| 45 | struct object { }; |
58 | { |
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59 | typedef R (*ptr_type)(void *self$_TYPE); |
| 46 | |
60 | |
| 47 | void *obj; |
61 | private: |
| 48 | R (object::*meth)($TYPE); |
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| 49 | |
62 | |
| 50 | /* a proxy is a kind of recipe on how to call a specific class method */ |
63 | void *self; |
| 51 | struct proxy_base { |
64 | ptr_type func; |
| 52 | virtual R call (void *obj, R (object::*meth)($TYPE)$_TYPEARG) = 0; |
65 | |
| 53 | }; |
66 | protected: |
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67 | |
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68 | template<typename method> |
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69 | struct thunktype; |
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70 | |
| 54 | template<class O1, class O2> |
71 | template<class klass> |
| 55 | struct proxy : proxy_base { |
72 | struct thunktype<R (klass::*)> |
| 56 | virtual R call (void *obj, R (object::*meth)($TYPE)$_TYPEARG) |
73 | { |
| 57 | { |
74 | typedef klass K; |
| 58 | return (R)((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<R (O2::*)($TYPE)>(meth))) |
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| 59 | ($ARG); |
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| 60 | } |
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| 61 | }; |
75 | }; |
| 62 | |
76 | |
| 63 | proxy_base *prxy; |
77 | template<class klass, R (klass::*method)($TYPE)> |
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78 | static R thunk (void *self$_TYPEARG) |
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79 | { |
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80 | klass *obj = static_cast<klass *>(self); |
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81 | return (obj->*method) ($ARG); |
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82 | } |
| 64 | |
83 | |
| 65 | public: |
84 | public: |
| 66 | template<class O1, class O2> |
85 | template<class K, R (K::*method)($TYPE)> |
| 67 | callback$a (O1 *object, R (O2::*method)($TYPE)) |
86 | void set (K *object) |
| 68 | { |
87 | { |
| 69 | static proxy<O1,O2> p; |
88 | self = object; |
| 70 | obj = reinterpret_cast<void *>(object); |
89 | func = thunk<K, method>; |
| 71 | meth = reinterpret_cast<R (object::*)($TYPE)>(method); |
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| 72 | prxy = &p; |
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| 73 | } |
90 | } |
| 74 | |
91 | |
| 75 | R call($TYPEARG) const |
92 | R call ($TYPEARG) const |
| 76 | { |
93 | { |
| 77 | return prxy->call (obj, meth$_ARG); |
94 | return func (self$_ARG); |
| 78 | } |
95 | } |
| 79 | |
96 | |
| 80 | R operator ()($TYPEARG) const |
97 | R operator ()($TYPEARG) const |
| 81 | { |
98 | { |
| 82 | return call ($ARG); |
99 | return call ($ARG); |
| 83 | } |
100 | } |
| 84 | }; |
101 | }; |
| 85 | |
102 | |
| 86 | EOF |
103 | EOF |
| 87 | } |
104 | } |
| 88 | |
105 | |
| 89 | print <<EOF |
106 | print <<EOF |
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107 | |
| 90 | #endif |
108 | #endif |
| 91 | EOF |
109 | EOF |
| 92 | |
110 | |
