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- #ifdef HAVE_CONFIG_H
- # include <config.h>
- #endif
- #include "libguile/_scm.h"
- #include "libguile/strings.h"
- #include "libguile/vectors.h"
- #include "libguile/smob.h"
- #include "libguile/deprecation.h"
- #include "libguile/validate.h"
- #include "libguile/procs.h"
- #include "libguile/procprop.h"
- #include "libguile/loader.h"
- #include "libguile/programs.h"
- SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0,
- (SCM obj),
- "Return @code{#t} if @var{obj} is a procedure.")
- #define FUNC_NAME s_scm_procedure_p
- {
- return scm_from_bool (SCM_PROGRAM_P (obj)
- || (SCM_STRUCTP (obj) && SCM_STRUCT_APPLICABLE_P (obj))
- || (SCM_HAS_TYP7 (obj, scm_tc7_smob)
- && SCM_SMOB_APPLICABLE_P (obj)));
- }
- #undef FUNC_NAME
- SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0,
- (SCM obj),
- "Return @code{#t} if @var{obj} is a thunk.")
- #define FUNC_NAME s_scm_thunk_p
- {
- int req, opt, rest;
- return scm_from_bool (scm_i_procedure_arity (obj, &req, &opt, &rest)
- && req == 0);
- }
- #undef FUNC_NAME
- static SCM pws_vtable;
- SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0,
- (SCM obj),
- "Return @code{#t} if @var{obj} is a procedure with an\n"
- "associated setter procedure.")
- #define FUNC_NAME s_scm_procedure_with_setter_p
- {
- return scm_from_bool (SCM_STRUCTP (obj) && SCM_STRUCT_SETTER_P (obj));
- }
- #undef FUNC_NAME
- SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0,
- (SCM procedure, SCM setter),
- "Create a new procedure which behaves like @var{procedure}, but\n"
- "with the associated setter @var{setter}.")
- #define FUNC_NAME s_scm_make_procedure_with_setter
- {
- SCM_VALIDATE_PROC (1, procedure);
- SCM_VALIDATE_PROC (2, setter);
- return scm_make_struct (pws_vtable, SCM_INUM0,
- scm_list_2 (procedure, setter));
- }
- #undef FUNC_NAME
- SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0,
- (SCM proc),
- "Return the procedure of @var{proc}, which must be an\n"
- "applicable struct.")
- #define FUNC_NAME s_scm_procedure
- {
- SCM_ASSERT (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc),
- proc, SCM_ARG1, FUNC_NAME);
- return SCM_STRUCT_PROCEDURE (proc);
- }
- #undef FUNC_NAME
- SCM_PRIMITIVE_GENERIC (scm_setter, "setter", 1, 0, 0,
- (SCM proc),
- "Return the setter of @var{proc}, which must be an\n"
- "applicable struct with a setter.")
- #define FUNC_NAME s_scm_setter
- {
- if (SCM_UNLIKELY (!SCM_STRUCTP (proc)))
- return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME);
- if (SCM_STRUCT_SETTER_P (proc))
- return SCM_STRUCT_SETTER (proc);
- return scm_wta_dispatch_1 (g_scm_setter, proc, SCM_ARG1, FUNC_NAME);
- }
- #undef FUNC_NAME
- void
- scm_init_procs ()
- {
- pws_vtable =
- scm_c_make_struct (scm_applicable_struct_with_setter_vtable_vtable,
- 0,
- 1,
- SCM_UNPACK (scm_from_latin1_symbol ("pwpw")));
- #include "libguile/procs.x"
- }
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