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patch 8.2.2756: Vim9: blob index and slice not implemented yet

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Problem:    Vim9: blob index and slice not implemented yet.
Solution:   Implement blob index and slice.
This commit is contained in:
Bram Moolenaar
2021-04-11 20:26:34 +02:00
parent af8ea0d066
commit cfc3023cb6
8 changed files with 142 additions and 72 deletions
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64
src/eval.c
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@@ -4161,68 +4161,8 @@ eval_index_inner(
break;
case VAR_BLOB:
len = blob_len(rettv->vval.v_blob);
if (is_range)
{
// The resulting variable is a sub-blob. If the indexes
// are out of range the result is empty.
if (n1 < 0)
{
n1 = len + n1;
if (n1 < 0)
n1 = 0;
}
if (n2 < 0)
n2 = len + n2;
else if (n2 >= len)
n2 = len - (exclusive ? 0 : 1);
if (exclusive)
--n2;
if (n1 >= len || n2 < 0 || n1 > n2)
{
clear_tv(rettv);
rettv->v_type = VAR_BLOB;
rettv->vval.v_blob = NULL;
}
else
{
blob_T *blob = blob_alloc();
long i;
if (blob != NULL)
{
if (ga_grow(&blob->bv_ga, n2 - n1 + 1) == FAIL)
{
blob_free(blob);
return FAIL;
}
blob->bv_ga.ga_len = n2 - n1 + 1;
for (i = n1; i <= n2; i++)
blob_set(blob, i - n1,
blob_get(rettv->vval.v_blob, i));
clear_tv(rettv);
rettv_blob_set(rettv, blob);
}
}
}
else
{
// The resulting variable is a byte value.
// If the index is too big or negative that is an error.
if (n1 < 0)
n1 = len + n1;
if (n1 < len && n1 >= 0)
{
int v = blob_get(rettv->vval.v_blob, n1);
clear_tv(rettv);
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = v;
}
else
semsg(_(e_blobidx), n1);
}
blob_slice_or_index(rettv->vval.v_blob, is_range, n1, n2,
exclusive, rettv);
break;
case VAR_LIST: