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Make VEC_GET take an index along with the type

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Since most use cases require indexing the data directly, and the macro
implies you're retrieving data from it, may as well take the index.

If you wanted a pointer to that data, &VEC_GET(vec, index, type) works
just fine.
This commit is contained in:
Aryadev Chavali
2026-01-21 09:48:29 +00:00
parent 8c190e955d
commit 865ab22fdc
3 changed files with 9 additions and 9 deletions
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4
alisp.h
View File

@@ -76,8 +76,8 @@ typedef struct Vector
static_assert(sizeof(vec_t) == 64, "vec_t has to be 64 bytes as part of SBO");
#define VEC_GET(V, T) ((T *)vec_data(V))
#define VEC_SIZE(V, T) ((V)->size / (sizeof(T)))
#define VEC_GET(V, I, T) (((T *)vec_data(V))[I])
#define VEC_SIZE(V, T) ((V)->size / (sizeof(T)))
void vec_init(vec_t *, u64);
void vec_free(vec_t *);

12
runtime/symtable.c
View File

@@ -41,22 +41,22 @@ char *sym_table_find(sym_table_t *table, sv_t sv)
// TODO: Deal with resizing this when table->count > table->size / 2
u64 index = djb2(sv) & (table->capacity - 1);
for (sv_t comp = VEC_GET(&table->entries, sv_t)[index]; comp.data; index += 1,
for (sv_t comp = VEC_GET(&table->entries, index, sv_t); comp.data; index += 1,
index = index & (table->capacity - 1),
comp = VEC_GET(&table->entries, sv_t)[index])
comp = VEC_GET(&table->entries, index, sv_t))
// Is it present in the table?
if (sv.size == comp.size && strncmp(sv.data, comp.data, sv.size) == 0)
break;
// we couldn't find it in our linear search (worst case scenario)
if (!VEC_GET(&table->entries, sv_t)[index].data)
if (!VEC_GET(&table->entries, index, sv_t).data)
{
sv_t newsv = sv_copy(sv);
VEC_GET(&table->entries, sv_t)[index] = newsv;
VEC_GET(&table->entries, index, sv_t) = newsv;
++table->count;
}
return VEC_GET(&table->entries, sv_t)[index].data;
return VEC_GET(&table->entries, index, sv_t).data;
}
void sym_table_cleanup(sym_table_t *table)
@@ -65,7 +65,7 @@ void sym_table_cleanup(sym_table_t *table)
sv_t current = {0};
for (u64 i = 0; i < table->capacity; ++i)
{
current = VEC_GET(&table->entries, sv_t)[i];
current = VEC_GET(&table->entries, i, sv_t);
if (current.data)
free(current.data);
}

2
runtime/sys.c
View File

@@ -40,7 +40,7 @@ void sys_cleanup(sys_t *sys)
// Iterate through each cons currently allocated and free them
for (size_t i = 0; i < VEC_SIZE(&sys->conses, lisp_t **); ++i)
{
lisp_t *allocated = VEC_GET(&sys->conses, lisp_t *)[i];
lisp_t *allocated = VEC_GET(&sys->conses, i, lisp_t *);
switch (get_tag(allocated))
{
case TAG_CONS: