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patch 8.2.4634: Vim9: cannot initialize a variable to null_list

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Problem:    Vim9: cannot initialize a variable to null_list.
Solution:   Give negative count to NEWLIST. (closes #10027)
            Also fix inconsistencies in comparing with null values.
This commit is contained in:
Bram Moolenaar
2022-03-27 16:29:53 +01:00
parent c75bca3ee9
commit ec15b1cfdc
12 changed files with 179 additions and 84 deletions
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15
src/typval.c
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@@ -1314,6 +1314,19 @@ typval_compare(
return FAIL;
}
}
#ifdef FEAT_JOB_CHANNEL
else if (tv1->v_type == tv2->v_type
&& (tv1->v_type == VAR_CHANNEL || tv1->v_type == VAR_JOB)
&& (type == EXPR_NEQUAL || type == EXPR_EQUAL))
{
if (tv1->v_type == VAR_CHANNEL)
n1 = tv1->vval.v_channel == tv2->vval.v_channel;
else
n1 = tv1->vval.v_job == tv2->vval.v_job;
if (type == EXPR_NEQUAL)
n1 = !n1;
}
#endif
else
{
if (typval_compare_string(tv1, tv2, type, ic, &res) == FAIL)
@@ -1417,7 +1430,7 @@ typval_compare_null(typval_T *tv1, typval_T *tv2)
default: break;
}
}
// although comparing null with number, float or bool is not very usefule
// although comparing null with number, float or bool is not very useful
// we won't give an error
return FALSE;
}