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patch 9.0.1786: Vim9: need instanceof() function

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Problem:  Vim9: need instanceof() function
Solution: Implement instanceof() builtin

Implemented in the same form as Python's isinstance because it allows
for checking multiple class types at the same time.

closes: #12867

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: LemonBoy <thatlemon@gmail.com>
This commit is contained in:
LemonBoy
2023-08-23 21:08:11 +02:00
committed by Christian Brabandt
parent 1193951beb
commit afe0466fb1
13 changed files with 212 additions and 19 deletions
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28
src/typval.c
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@@ -973,6 +973,34 @@ check_for_opt_buffer_or_dict_arg(typval_T *args, int idx)
return OK;
}
/*
* Give an error and return FAIL unless "args[idx]" is an object.
*/
int
check_for_object_arg(typval_T *args, int idx)
{
if (args[idx].v_type != VAR_OBJECT)
{
semsg(_(e_object_required_for_argument_nr), idx + 1);
return FAIL;
}
return OK;
}
/*
* Give an error and return FAIL unless "args[idx]" is a class or a list.
*/
int
check_for_class_or_list_arg(typval_T *args, int idx)
{
if (args[idx].v_type != VAR_CLASS && args[idx].v_type != VAR_LIST)
{
semsg(_(e_list_or_class_required_for_argument_nr), idx + 1);
return FAIL;
}
return OK;
}
/*
* Get the string value of a variable.
* If it is a Number variable, the number is converted into a string.