Commit | Line | Data |
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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 JB |
48 | { |
49 | if (SCM_NIMP (obj)) | |
50 | switch (SCM_TYP7 (obj)) | |
51 | { | |
904a077d | 52 | case scm_tcs_struct: |
b6cf4d02 AW |
53 | if (!((SCM_OBJ_CLASS_FLAGS (obj) & SCM_CLASSF_PURE_GENERIC) |
54 | || SCM_STRUCT_APPLICABLE_P (obj))) | |
bdc88419 | 55 | break; |
2fb924f6 | 56 | case scm_tc7_program: |
0f2d19dd | 57 | return SCM_BOOL_T; |
0717dfd8 | 58 | case scm_tc7_smob: |
7888309b | 59 | return scm_from_bool (SCM_SMOB_DESCRIPTOR (obj).apply); |
0f2d19dd JB |
60 | default: |
61 | return SCM_BOOL_F; | |
62 | } | |
63 | return SCM_BOOL_F; | |
64 | } | |
1bbd0b84 | 65 | #undef FUNC_NAME |
0f2d19dd | 66 | |
3b3b36dd | 67 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
68 | (SCM obj), |
69 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 70 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 | 71 | { |
314b8716 AW |
72 | int req, opt, rest; |
73 | return scm_from_bool (scm_i_procedure_arity (obj, &req, &opt, &rest) | |
74 | && req == 0); | |
44bd53b9 | 75 | } |
1bbd0b84 | 76 | #undef FUNC_NAME |
44bd53b9 | 77 | |
2a0db0e3 AW |
78 | SCM_SYMBOL (sym_documentation, "documentation"); |
79 | ||
3b3b36dd | 80 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 81 | (SCM proc), |
b380b885 MD |
82 | "Return the documentation string associated with @code{proc}. By\n" |
83 | "convention, if a procedure contains more than one expression and the\n" | |
84 | "first expression is a string constant, that string is assumed to contain\n" | |
85 | "documentation for that procedure.") | |
1bbd0b84 | 86 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba | 87 | { |
314b8716 | 88 | SCM_VALIDATE_PROC (SCM_ARG1, proc); |
07e424b7 | 89 | return scm_procedure_property (proc, sym_documentation); |
c2c82fba | 90 | } |
1bbd0b84 | 91 | #undef FUNC_NAME |
c2c82fba | 92 | |
0f2d19dd | 93 | |
b4cd6492 MD |
94 | /* Procedure-with-setter |
95 | */ | |
96 | ||
ea68d342 AW |
97 | static SCM pws_vtable; |
98 | ||
99 | ||
a1ec6916 | 100 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 101 | (SCM obj), |
8cf97abf MG |
102 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
103 | "associated setter procedure.") | |
1bbd0b84 | 104 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 105 | { |
ea68d342 | 106 | return scm_from_bool (SCM_STRUCTP (obj) && SCM_STRUCT_SETTER_P (obj)); |
b4cd6492 | 107 | } |
1bbd0b84 | 108 | #undef FUNC_NAME |
b4cd6492 | 109 | |
a1ec6916 | 110 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 111 | (SCM procedure, SCM setter), |
8cf97abf MG |
112 | "Create a new procedure which behaves like @var{procedure}, but\n" |
113 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 114 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 115 | { |
3fd8807e | 116 | SCM name, ret; |
e1f8eb2b MD |
117 | SCM_VALIDATE_PROC (1, procedure); |
118 | SCM_VALIDATE_PROC (2, setter); | |
ea68d342 AW |
119 | ret = scm_make_struct (pws_vtable, SCM_INUM0, |
120 | scm_list_2 (procedure, setter)); | |
121 | ||
3fd8807e AW |
122 | /* don't use procedure_name, because don't care enough to do a reverse |
123 | lookup */ | |
cc7005bc | 124 | name = scm_procedure_property (procedure, scm_sym_name); |
3fd8807e AW |
125 | if (scm_is_true (name)) |
126 | scm_set_procedure_property_x (ret, scm_sym_name, name); | |
127 | return ret; | |
b4cd6492 | 128 | } |
1bbd0b84 | 129 | #undef FUNC_NAME |
b4cd6492 | 130 | |
a1ec6916 | 131 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 132 | (SCM proc), |
ea68d342 AW |
133 | "Return the procedure of @var{proc}, which must be an\n" |
134 | "applicable struct.") | |
1bbd0b84 | 135 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 136 | { |
05e0e22b AW |
137 | SCM_ASSERT (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc), |
138 | proc, SCM_ARG1, FUNC_NAME); | |
ea68d342 | 139 | return SCM_STRUCT_PROCEDURE (proc); |
b4cd6492 | 140 | } |
1bbd0b84 | 141 | #undef FUNC_NAME |
b4cd6492 | 142 | |
ea68d342 AW |
143 | SCM_PRIMITIVE_GENERIC (scm_setter, "setter", 1, 0, 0, |
144 | (SCM proc), | |
145 | "Return the setter of @var{proc}, which must be an\n" | |
146 | "applicable struct with a setter.") | |
147 | #define FUNC_NAME s_scm_setter | |
b4cd6492 | 148 | { |
ea68d342 AW |
149 | SCM_GASSERT1 (SCM_STRUCTP (proc), g_scm_setter, proc, SCM_ARG1, FUNC_NAME); |
150 | if (SCM_STRUCT_SETTER_P (proc)) | |
151 | return SCM_STRUCT_SETTER (proc); | |
534491d0 AW |
152 | if (SCM_PUREGENERICP (proc) |
153 | && SCM_IS_A_P (proc, scm_class_generic_with_setter)) | |
ea68d342 AW |
154 | /* FIXME: might not be an accessor */ |
155 | return SCM_GENERIC_SETTER (proc); | |
156 | SCM_WTA_DISPATCH_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME); | |
b038d983 | 157 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 158 | } |
ea68d342 | 159 | #undef FUNC_NAME |
1cc91f1b | 160 | |
ac51e74b | 161 | \f |
0f2d19dd JB |
162 | void |
163 | scm_init_procs () | |
0f2d19dd | 164 | { |
bbd41a6a AW |
165 | pws_vtable = |
166 | scm_c_make_struct (scm_applicable_struct_with_setter_vtable_vtable, | |
167 | 0, | |
168 | 1, | |
4a655e50 | 169 | SCM_UNPACK (scm_from_latin1_symbol ("pwpw"))); |
ea68d342 | 170 | |
a0599745 | 171 | #include "libguile/procs.x" |
0f2d19dd | 172 | } |
89e00824 ML |
173 | |
174 | /* | |
175 | Local Variables: | |
176 | c-file-style: "gnu" | |
177 | End: | |
178 | */ |