diff options
Diffstat (limited to 'libguile/procprop.c')
-rw-r--r-- | libguile/procprop.c | 119 |
1 files changed, 78 insertions, 41 deletions
diff --git a/libguile/procprop.c b/libguile/procprop.c index 2d9e6550b..78a40c1e2 100644 --- a/libguile/procprop.c +++ b/libguile/procprop.c @@ -136,22 +136,28 @@ SCM_DEFINE (scm_procedure_properties, "procedure-properties", 1, 0, 0, "Return @var{proc}'s property list.") #define FUNC_NAME s_scm_procedure_properties { - SCM ret; + SCM ret, user_props; SCM_VALIDATE_PROC (1, proc); - ret = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + user_props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + + if (scm_is_pair (user_props) && scm_is_true (scm_car (user_props))) + return scm_cdr (user_props); + + if (SCM_PROGRAM_P (proc)) + ret = scm_i_program_properties (proc); + else if (SCM_RTL_PROGRAM_P (proc)) + ret = scm_i_rtl_program_properties (proc); + else + ret = SCM_EOL; + + if (scm_is_pair (user_props)) + for (user_props = scm_cdr (user_props); + scm_is_pair (user_props); + user_props = scm_cdr (user_props)) + ret = scm_assq_set_x (ret, scm_caar (user_props), scm_cdar (user_props)); - if (scm_is_false (ret)) - { - if (SCM_PROGRAM_P (proc)) - ret = scm_i_program_properties (proc); - else if (SCM_RTL_PROGRAM_P (proc)) - ret = scm_i_rtl_program_properties (proc); - else - ret = SCM_EOL; - } - return ret; } #undef FUNC_NAME @@ -163,7 +169,7 @@ SCM_DEFINE (scm_set_procedure_properties_x, "set-procedure-properties!", 2, 0, 0 { SCM_VALIDATE_PROC (1, proc); - scm_weak_table_putq_x (overrides, proc, alist); + scm_weak_table_putq_x (overrides, proc, scm_cons (SCM_BOOL_T, alist)); return SCM_UNSPECIFIED; } @@ -174,8 +180,25 @@ SCM_DEFINE (scm_procedure_property, "procedure-property", 2, 0, 0, "Return the property of @var{proc} with name @var{key}.") #define FUNC_NAME s_scm_procedure_property { + SCM user_props; + SCM_VALIDATE_PROC (1, proc); + if (scm_is_eq (key, scm_sym_name)) + return scm_procedure_name (proc); + if (scm_is_eq (key, scm_sym_documentation)) + return scm_procedure_documentation (proc); + + user_props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + if (scm_is_true (user_props)) + { + SCM pair = scm_assq (key, scm_cdr (user_props)); + if (scm_is_pair (pair)) + return scm_cdr (pair); + if (scm_is_true (scm_car (user_props))) + return SCM_BOOL_F; + } + return scm_assq_ref (scm_procedure_properties (proc), key); } #undef FUNC_NAME @@ -186,20 +209,25 @@ SCM_DEFINE (scm_set_procedure_property_x, "set-procedure-property!", 3, 0, 0, "@var{val}.") #define FUNC_NAME s_scm_set_procedure_property_x { - SCM props; + SCM user_props, override_p; SCM_VALIDATE_PROC (1, proc); scm_i_pthread_mutex_lock (&scm_i_misc_mutex); - props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); - if (scm_is_false (props)) + user_props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + if (scm_is_false (user_props)) { - if (SCM_PROGRAM_P (proc)) - props = scm_i_program_properties (proc); - else - props = SCM_EOL; + override_p = SCM_BOOL_F; + user_props = SCM_EOL; } - scm_weak_table_putq_x (overrides, proc, scm_assq_set_x (props, key, val)); + else + { + override_p = scm_car (user_props); + user_props = scm_cdr (user_props); + } + scm_weak_table_putq_x (overrides, proc, + scm_cons (override_p, + scm_assq_set_x (user_props, key, val))); scm_i_pthread_mutex_unlock (&scm_i_misc_mutex); return SCM_UNSPECIFIED; @@ -217,25 +245,29 @@ SCM_DEFINE (scm_procedure_name, "procedure-name", 1, 0, 0, "Return the name of the procedure @var{proc}") #define FUNC_NAME s_scm_procedure_name { - SCM props, ret; + SCM user_props; SCM_VALIDATE_PROC (1, proc); while (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc)) proc = SCM_STRUCT_PROCEDURE (proc); - props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + user_props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + if (scm_is_true (user_props)) + { + SCM pair = scm_assq (scm_sym_name, scm_cdr (user_props)); + if (scm_is_pair (pair)) + return scm_cdr (pair); + if (scm_is_true (scm_car (user_props))) + return SCM_BOOL_F; + } - if (scm_is_pair (props)) - ret = scm_assq_ref (props, scm_sym_name); - else if (SCM_RTL_PROGRAM_P (proc)) - ret = scm_i_rtl_program_name (proc); + if (SCM_RTL_PROGRAM_P (proc)) + return scm_i_rtl_program_name (proc); else if (SCM_PROGRAM_P (proc)) - ret = scm_assq_ref (scm_i_program_properties (proc), scm_sym_name); + return scm_assq_ref (scm_i_program_properties (proc), scm_sym_name); else - ret = SCM_BOOL_F; - - return ret; + return SCM_BOOL_F; } #undef FUNC_NAME @@ -250,25 +282,30 @@ SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, "documentation for that procedure.") #define FUNC_NAME s_scm_procedure_documentation { - SCM props, ret; + SCM user_props; SCM_VALIDATE_PROC (1, proc); while (SCM_STRUCTP (proc) && SCM_STRUCT_APPLICABLE_P (proc)) proc = SCM_STRUCT_PROCEDURE (proc); - props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + user_props = scm_weak_table_refq (overrides, proc, SCM_BOOL_F); + if (scm_is_true (user_props)) + { + SCM pair = scm_assq (scm_sym_documentation, scm_cdr (user_props)); + if (scm_is_pair (pair)) + return scm_cdr (pair); + if (scm_is_true (scm_car (user_props))) + return SCM_BOOL_F; + } - if (scm_is_pair (props)) - ret = scm_assq_ref (props, scm_sym_documentation); - else if (SCM_RTL_PROGRAM_P (proc)) - ret = scm_i_rtl_program_documentation (proc); + if (SCM_RTL_PROGRAM_P (proc)) + return scm_i_rtl_program_documentation (proc); else if (SCM_PROGRAM_P (proc)) - ret = scm_assq_ref (scm_i_program_properties (proc), scm_sym_documentation); + return scm_assq_ref (scm_i_program_properties (proc), + scm_sym_documentation); else - ret = SCM_BOOL_F; - - return ret; + return SCM_BOOL_F; } #undef FUNC_NAME |