py/vstr: Combine vstr_new_size with vstr_new since they are rarely used.

Now there is just one function to allocate a new vstr, namely vstr_new
(in addition to vstr_init etc).  The caller of this function should know
what initial size to allocate for the buffer, or at least have some policy
or config option, instead of leaving it to a default (as it was before).

3 files changed, 3 insertions, 16 deletions

diff --git a/py/misc.h b/py/misc.h
index 3ed227a352..e60665e591 100644
--- a/py/misc.h
+++ b/py/misc.h
@@ -151,8 +151,7 @@ void vstr_init_fixed_buf(vstr_t *vstr, size_t alloc, char *buf);
 struct _mp_print_t;
 void vstr_init_print(vstr_t *vstr, size_t alloc, struct _mp_print_t *print);
 void vstr_clear(vstr_t *vstr);
-vstr_t *vstr_new(void);
-vstr_t *vstr_new_size(size_t alloc);
+vstr_t *vstr_new(size_t alloc);
 void vstr_free(vstr_t *vstr);
 static inline void vstr_reset(vstr_t *vstr) { vstr->len = 0; }
 static inline char *vstr_str(vstr_t *vstr) { return vstr->buf; }
diff --git a/py/objstringio.c b/py/objstringio.c
index be1a7d89cb..212d8e314f 100644
--- a/py/objstringio.c
+++ b/py/objstringio.c
@@ -150,7 +150,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(stringio___exit___obj, 4, 4, stringio
 STATIC mp_obj_stringio_t *stringio_new(const mp_obj_type_t *type) {
     mp_obj_stringio_t *o = m_new_obj(mp_obj_stringio_t);
     o->base.type = type;
-    o->vstr = vstr_new();
+    o->vstr = vstr_new(16);
     o->pos = 0;
     return o;
 }
diff --git a/py/vstr.c b/py/vstr.c
index 5096475f10..6a91552b5a 100644
--- a/py/vstr.c
+++ b/py/vstr.c
@@ -74,20 +74,8 @@ void vstr_clear(vstr_t *vstr) {
     vstr->buf = NULL;
 }
 
-vstr_t *vstr_new(void) {
+vstr_t *vstr_new(size_t alloc) {
     vstr_t *vstr = m_new_obj(vstr_t);
-    if (vstr == NULL) {
-        return NULL;
-    }
-    vstr_init(vstr, 16);
-    return vstr;
-}
-
-vstr_t *vstr_new_size(size_t alloc) {
-    vstr_t *vstr = m_new_obj(vstr_t);
-    if (vstr == NULL) {
-        return NULL;
-    }
     vstr_init(vstr, alloc);
     return vstr;
 }