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patch 8.1.1044: no way to check the reference count of objects

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Problem:    No way to check the reference count of objects.
Solution:   Add test_refcount(). (Ozaki Kiichi, closes #4124)
This commit is contained in:
Bram Moolenaar
2019-03-23 14:23:07 +01:00
parent b782869033
commit c3e92c161d
4 changed files with 182 additions and 2 deletions
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67
src/evalfunc.c
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@@ -428,6 +428,7 @@ static void f_test_autochdir(typval_T *argvars, typval_T *rettv);
static void f_test_feedinput(typval_T *argvars, typval_T *rettv);
static void f_test_option_not_set(typval_T *argvars, typval_T *rettv);
static void f_test_override(typval_T *argvars, typval_T *rettv);
static void f_test_refcount(typval_T *argvars, typval_T *rettv);
static void f_test_garbagecollect_now(typval_T *argvars, typval_T *rettv);
static void f_test_ignore_error(typval_T *argvars, typval_T *rettv);
static void f_test_null_blob(typval_T *argvars, typval_T *rettv);
@@ -952,7 +953,7 @@ static struct fst
{"test_feedinput", 1, 1, f_test_feedinput},
{"test_garbagecollect_now", 0, 0, f_test_garbagecollect_now},
{"test_ignore_error", 1, 1, f_test_ignore_error},
{"test_null_blob", 0, 0, f_test_null_blob},
{"test_null_blob", 0, 0, f_test_null_blob},
#ifdef FEAT_JOB_CHANNEL
{"test_null_channel", 0, 0, f_test_null_channel},
#endif
@@ -964,7 +965,8 @@ static struct fst
{"test_null_partial", 0, 0, f_test_null_partial},
{"test_null_string", 0, 0, f_test_null_string},
{"test_option_not_set", 1, 1, f_test_option_not_set},
{"test_override", 2, 2, f_test_override},
{"test_override", 2, 2, f_test_override},
{"test_refcount", 1, 1, f_test_refcount},
#ifdef FEAT_GUI
{"test_scrollbar", 3, 3, f_test_scrollbar},
#endif
@@ -13846,6 +13848,67 @@ f_test_override(typval_T *argvars, typval_T *rettv UNUSED)
}
}
/*
* "test_refcount({expr})" function
*/
static void
f_test_refcount(typval_T *argvars, typval_T *rettv)
{
int retval = -1;
switch (argvars[0].v_type)
{
case VAR_UNKNOWN:
case VAR_NUMBER:
case VAR_FLOAT:
case VAR_SPECIAL:
case VAR_STRING:
break;
case VAR_JOB:
#ifdef FEAT_JOB_CHANNEL
if (argvars[0].vval.v_job != NULL)
retval = argvars[0].vval.v_job->jv_refcount - 1;
#endif
break;
case VAR_CHANNEL:
#ifdef FEAT_JOB_CHANNEL
if (argvars[0].vval.v_channel != NULL)
retval = argvars[0].vval.v_channel->ch_refcount - 1;
#endif
break;
case VAR_FUNC:
if (argvars[0].vval.v_string != NULL)
{
ufunc_T *fp;
fp = find_func(argvars[0].vval.v_string);
if (fp != NULL)
retval = fp->uf_refcount;
}
break;
case VAR_PARTIAL:
if (argvars[0].vval.v_partial != NULL)
retval = argvars[0].vval.v_partial->pt_refcount - 1;
break;
case VAR_BLOB:
if (argvars[0].vval.v_blob != NULL)
retval = argvars[0].vval.v_blob->bv_refcount - 1;
break;
case VAR_LIST:
if (argvars[0].vval.v_list != NULL)
retval = argvars[0].vval.v_list->lv_refcount - 1;
break;
case VAR_DICT:
if (argvars[0].vval.v_dict != NULL)
retval = argvars[0].vval.v_dict->dv_refcount - 1;
break;
}
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = retval;
}
/*
* "test_garbagecollect_now()" function
*/