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4a655e50 | 1 | /* Copyright (C) 1995,1996,1997,1999,2000,2001, 2006, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
73be1d9e | 17 | */ |
1bbd0b84 | 18 | |
1bbd0b84 | 19 | |
0f2d19dd | 20 | \f |
dbb605f5 LC |
21 | #ifdef HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
0f2d19dd | 24 | |
a0599745 | 25 | #include "libguile/_scm.h" |
0f2d19dd | 26 | |
a0599745 MD |
27 | #include "libguile/strings.h" |
28 | #include "libguile/vectors.h" | |
0717dfd8 | 29 | #include "libguile/smob.h" |
c88a8162 | 30 | #include "libguile/deprecation.h" |
bdc88419 | 31 | |
a0599745 MD |
32 | #include "libguile/validate.h" |
33 | #include "libguile/procs.h" | |
3fd8807e | 34 | #include "libguile/procprop.h" |
53e28ed9 | 35 | #include "libguile/objcodes.h" |
7e580328 | 36 | #include "libguile/programs.h" |
0f2d19dd JB |
37 | \f |
38 | ||
39 | ||
40 | /* {Procedures} | |
41 | */ | |
42 | ||
9de33deb | 43 | |
3b3b36dd | 44 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
45 | (SCM obj), |
46 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 47 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd | 48 | { |
8b33752b AW |
49 | return scm_from_bool (SCM_PROGRAM_P (obj) |
50 | || (SCM_STRUCTP (obj) && SCM_STRUCT_APPLICABLE_P (obj)) | |
51 | || (SCM_HAS_TYP7 (obj, scm_tc7_smob) | |
52 | && SCM_SMOB_APPLICABLE_P (obj))); | |
0f2d19dd | 53 | } |
1bbd0b84 | 54 | #undef FUNC_NAME |
0f2d19dd | 55 | |
3b3b36dd | 56 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
57 | (SCM obj), |
58 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 59 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 | 60 | { |
314b8716 AW |
61 | int req, opt, rest; |
62 | return scm_from_bool (scm_i_procedure_arity (obj, &req, &opt, &rest) | |
63 | && req == 0); | |
44bd53b9 | 64 | } |
1bbd0b84 | 65 | #undef FUNC_NAME |
44bd53b9 | 66 | |
2a0db0e3 AW |
67 | SCM_SYMBOL (sym_documentation, "documentation"); |
68 | ||
3b3b36dd | 69 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 70 | (SCM proc), |
b380b885 MD |
71 | "Return the documentation string associated with @code{proc}. By\n" |
72 | "convention, if a procedure contains more than one expression and the\n" | |
73 | "first expression is a string constant, that string is assumed to contain\n" | |
74 | "documentation for that procedure.") | |
1bbd0b84 | 75 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba | 76 | { |
314b8716 | 77 | SCM_VALIDATE_PROC (SCM_ARG1, proc); |
07e424b7 | 78 | return scm_procedure_property (proc, sym_documentation); |
c2c82fba | 79 | } |
1bbd0b84 | 80 | #undef FUNC_NAME |
c2c82fba | 81 | |
0f2d19dd | 82 | |
b4cd6492 MD |
83 | /* Procedure-with-setter |
84 | */ | |
85 | ||
ea68d342 AW |
86 | static SCM pws_vtable; |
87 | ||
88 | ||
a1ec6916 | 89 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 90 | (SCM obj), |
8cf97abf MG |
91 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
92 | "associated setter procedure.") | |
1bbd0b84 | 93 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 94 | { |
ea68d342 | 95 | return scm_from_bool (SCM_STRUCTP (obj) && SCM_STRUCT_SETTER_P (obj)); |
b4cd6492 | 96 | } |
1bbd0b84 | 97 | #undef FUNC_NAME |
b4cd6492 | 98 | |
a1ec6916 | 99 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 100 | (SCM procedure, SCM setter), |
8cf97abf MG |
101 | "Create a new procedure which behaves like @var{procedure}, but\n" |
102 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 103 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 104 | { |
3fd8807e | 105 | SCM name, ret; |
e1f8eb2b MD |
106 | SCM_VALIDATE_PROC (1, procedure); |
107 | SCM_VALIDATE_PROC (2, setter); | |
ea68d342 AW |
108 | ret = scm_make_struct (pws_vtable, SCM_INUM0, |
109 | scm_list_2 (procedure, setter)); | |
110 | ||
3fd8807e AW |
111 | /* don't use procedure_name, because don't care enough to do a reverse |
112 | lookup */ | |
cc7005bc | 113 | name = scm_procedure_property (procedure, scm_sym_name); |
3fd8807e AW |
114 | if (scm_is_true (name)) |
115 | scm_set_procedure_property_x (ret, scm_sym_name, name); | |
116 | return ret; | |
b4cd6492 | 117 | } |
1bbd0b84 | 118 | #undef FUNC_NAME |
b4cd6492 | 119 | |
a1ec6916 | 120 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 121 | (SCM proc), |
ea68d342 AW |
122 | "Return the procedure of @var{proc}, which must be an\n" |
123 | "applicable struct.") | |
1bbd0b84 | 124 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 125 | { |
05e0e22b AW |
126 | SCM_ASSERT (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc), |
127 | proc, SCM_ARG1, FUNC_NAME); | |
ea68d342 | 128 | return SCM_STRUCT_PROCEDURE (proc); |
b4cd6492 | 129 | } |
1bbd0b84 | 130 | #undef FUNC_NAME |
b4cd6492 | 131 | |
ea68d342 AW |
132 | SCM_PRIMITIVE_GENERIC (scm_setter, "setter", 1, 0, 0, |
133 | (SCM proc), | |
134 | "Return the setter of @var{proc}, which must be an\n" | |
135 | "applicable struct with a setter.") | |
136 | #define FUNC_NAME s_scm_setter | |
b4cd6492 | 137 | { |
fa075d40 AW |
138 | if (SCM_UNLIKELY (!SCM_STRUCTP (proc))) |
139 | return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME); | |
ea68d342 AW |
140 | if (SCM_STRUCT_SETTER_P (proc)) |
141 | return SCM_STRUCT_SETTER (proc); | |
534491d0 AW |
142 | if (SCM_PUREGENERICP (proc) |
143 | && SCM_IS_A_P (proc, scm_class_generic_with_setter)) | |
ea68d342 AW |
144 | /* FIXME: might not be an accessor */ |
145 | return SCM_GENERIC_SETTER (proc); | |
fa075d40 | 146 | return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME); |
b038d983 | 147 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 148 | } |
ea68d342 | 149 | #undef FUNC_NAME |
1cc91f1b | 150 | |
ac51e74b | 151 | \f |
0f2d19dd JB |
152 | void |
153 | scm_init_procs () | |
0f2d19dd | 154 | { |
bbd41a6a AW |
155 | pws_vtable = |
156 | scm_c_make_struct (scm_applicable_struct_with_setter_vtable_vtable, | |
157 | 0, | |
158 | 1, | |
4a655e50 | 159 | SCM_UNPACK (scm_from_latin1_symbol ("pwpw"))); |
ea68d342 | 160 | |
a0599745 | 161 | #include "libguile/procs.x" |
0f2d19dd | 162 | } |
89e00824 ML |
163 | |
164 | /* | |
165 | Local Variables: | |
166 | c-file-style: "gnu" | |
167 | End: | |
168 | */ |