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c438cd71 | 1 | /* Copyright (C) 1995, 1996, 1997, 1999, 2000, 2001, 2006, 2008, 2009, |
510ca126 | 2 | * 2010, 2011, 2012, 2013 Free Software Foundation, Inc. |
c438cd71 | 3 | * |
73be1d9e | 4 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
5 | * modify it under the terms of the GNU Lesser General Public License |
6 | * as published by the Free Software Foundation; either version 3 of | |
7 | * the License, or (at your option) any later version. | |
0f2d19dd | 8 | * |
53befeb7 NJ |
9 | * This library is distributed in the hope that it will be useful, but |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
0f2d19dd | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301 USA | |
73be1d9e | 18 | */ |
1bbd0b84 | 19 | |
1bbd0b84 | 20 | |
0f2d19dd | 21 | \f |
dbb605f5 LC |
22 | #ifdef HAVE_CONFIG_H |
23 | # include <config.h> | |
24 | #endif | |
0f2d19dd | 25 | |
a0599745 | 26 | #include "libguile/_scm.h" |
0f2d19dd | 27 | |
a0599745 MD |
28 | #include "libguile/strings.h" |
29 | #include "libguile/vectors.h" | |
0717dfd8 | 30 | #include "libguile/smob.h" |
c88a8162 | 31 | #include "libguile/deprecation.h" |
bdc88419 | 32 | |
a0599745 MD |
33 | #include "libguile/validate.h" |
34 | #include "libguile/procs.h" | |
3fd8807e | 35 | #include "libguile/procprop.h" |
4cbc95f1 | 36 | #include "libguile/loader.h" |
7e580328 | 37 | #include "libguile/programs.h" |
0f2d19dd JB |
38 | \f |
39 | ||
40 | ||
41 | /* {Procedures} | |
42 | */ | |
43 | ||
9de33deb | 44 | |
3b3b36dd | 45 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
46 | (SCM obj), |
47 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 48 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd | 49 | { |
d798a895 | 50 | return scm_from_bool (SCM_PROGRAM_P (obj) |
8b33752b AW |
51 | || (SCM_STRUCTP (obj) && SCM_STRUCT_APPLICABLE_P (obj)) |
52 | || (SCM_HAS_TYP7 (obj, scm_tc7_smob) | |
53 | && SCM_SMOB_APPLICABLE_P (obj))); | |
0f2d19dd | 54 | } |
1bbd0b84 | 55 | #undef FUNC_NAME |
0f2d19dd | 56 | |
3b3b36dd | 57 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
58 | (SCM obj), |
59 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 60 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 | 61 | { |
314b8716 AW |
62 | int req, opt, rest; |
63 | return scm_from_bool (scm_i_procedure_arity (obj, &req, &opt, &rest) | |
64 | && req == 0); | |
44bd53b9 | 65 | } |
1bbd0b84 | 66 | #undef FUNC_NAME |
44bd53b9 | 67 | |
0f2d19dd | 68 | |
b4cd6492 MD |
69 | /* Procedure-with-setter |
70 | */ | |
71 | ||
ea68d342 AW |
72 | static SCM pws_vtable; |
73 | ||
74 | ||
a1ec6916 | 75 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 76 | (SCM obj), |
8cf97abf MG |
77 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
78 | "associated setter procedure.") | |
1bbd0b84 | 79 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 80 | { |
ea68d342 | 81 | return scm_from_bool (SCM_STRUCTP (obj) && SCM_STRUCT_SETTER_P (obj)); |
b4cd6492 | 82 | } |
1bbd0b84 | 83 | #undef FUNC_NAME |
b4cd6492 | 84 | |
a1ec6916 | 85 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 86 | (SCM procedure, SCM setter), |
8cf97abf MG |
87 | "Create a new procedure which behaves like @var{procedure}, but\n" |
88 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 89 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 90 | { |
e1f8eb2b MD |
91 | SCM_VALIDATE_PROC (1, procedure); |
92 | SCM_VALIDATE_PROC (2, setter); | |
30b7cf9d AW |
93 | return scm_make_struct (pws_vtable, SCM_INUM0, |
94 | scm_list_2 (procedure, setter)); | |
b4cd6492 | 95 | } |
1bbd0b84 | 96 | #undef FUNC_NAME |
b4cd6492 | 97 | |
a1ec6916 | 98 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 99 | (SCM proc), |
ea68d342 AW |
100 | "Return the procedure of @var{proc}, which must be an\n" |
101 | "applicable struct.") | |
1bbd0b84 | 102 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 103 | { |
05e0e22b AW |
104 | SCM_ASSERT (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc), |
105 | proc, SCM_ARG1, FUNC_NAME); | |
ea68d342 | 106 | return SCM_STRUCT_PROCEDURE (proc); |
b4cd6492 | 107 | } |
1bbd0b84 | 108 | #undef FUNC_NAME |
b4cd6492 | 109 | |
ea68d342 AW |
110 | SCM_PRIMITIVE_GENERIC (scm_setter, "setter", 1, 0, 0, |
111 | (SCM proc), | |
112 | "Return the setter of @var{proc}, which must be an\n" | |
113 | "applicable struct with a setter.") | |
114 | #define FUNC_NAME s_scm_setter | |
b4cd6492 | 115 | { |
fa075d40 AW |
116 | if (SCM_UNLIKELY (!SCM_STRUCTP (proc))) |
117 | return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME); | |
ea68d342 AW |
118 | if (SCM_STRUCT_SETTER_P (proc)) |
119 | return SCM_STRUCT_SETTER (proc); | |
534491d0 AW |
120 | if (SCM_PUREGENERICP (proc) |
121 | && SCM_IS_A_P (proc, scm_class_generic_with_setter)) | |
ea68d342 AW |
122 | /* FIXME: might not be an accessor */ |
123 | return SCM_GENERIC_SETTER (proc); | |
fa075d40 | 124 | return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME); |
b038d983 | 125 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 126 | } |
ea68d342 | 127 | #undef FUNC_NAME |
1cc91f1b | 128 | |
ac51e74b | 129 | \f |
0f2d19dd JB |
130 | void |
131 | scm_init_procs () | |
0f2d19dd | 132 | { |
bbd41a6a AW |
133 | pws_vtable = |
134 | scm_c_make_struct (scm_applicable_struct_with_setter_vtable_vtable, | |
135 | 0, | |
136 | 1, | |
4a655e50 | 137 | SCM_UNPACK (scm_from_latin1_symbol ("pwpw"))); |
ea68d342 | 138 | |
a0599745 | 139 | #include "libguile/procs.x" |
0f2d19dd | 140 | } |
89e00824 ML |
141 | |
142 | /* | |
143 | Local Variables: | |
144 | c-file-style: "gnu" | |
145 | End: | |
146 | */ |