diff options
Diffstat (limited to 'ffi.c')
| -rw-r--r-- | ffi.c | 41 |
1 files changed, 26 insertions, 15 deletions
@@ -2108,8 +2108,12 @@ static val ffi_struct_in(struct txr_ffi_type *tft, int copy, mem_t *src, struct smemb *memb = tft->memb; if (strct == nil) { - args_decl(args, 0); - strct = make_struct(tft->lt, nil, args); + if (!copy) { + return nil; + } else { + args_decl(args, 0); + strct = make_struct(tft->lt, nil, args); + } } for (i = 0; i < nmemb; i++) { @@ -2316,6 +2320,9 @@ static val ffi_array_in_common(struct txr_ffi_type *tft, int copy, cnum znelem = if3(tft->null_term && nelem > 0 && vec && length(vec) < num_fast(nelem), nelem - 1, nelem); + if (!copy && (etft->in == 0 || vec == nil)) + return vec; + if (vec == nil) vec = vector(num_fast(znelem), nil); @@ -2336,18 +2343,19 @@ static val ffi_array_in_common(struct txr_ffi_type *tft, int copy, static val ffi_array_in(struct txr_ffi_type *tft, int copy, mem_t *src, val vec, val self) { - if (tft->char_conv) { - val str = ffi_char_array_get(tft, src, tft->nelem); - return if3(vec, replace(vec, str, zero, t), str); - } else if (tft->wchar_conv) { - val str = ffi_wchar_array_get(tft, src, tft->nelem); - return if3(vec, replace(vec, str, zero, t), str); - } else if (tft->bchar_conv) { - val str = ffi_bchar_array_get(tft, src, tft->nelem); - return if3(vec, replace(vec, str, zero, t), str); - } else { - return ffi_array_in_common(tft, copy, src, vec, self, tft->nelem); + if (copy) { + if (tft->char_conv) { + val str = ffi_char_array_get(tft, src, tft->nelem); + return if3(vec, replace(vec, str, zero, t), str); + } else if (tft->wchar_conv) { + val str = ffi_wchar_array_get(tft, src, tft->nelem); + return if3(vec, replace(vec, str, zero, t), str); + } else if (tft->bchar_conv) { + val str = ffi_bchar_array_get(tft, src, tft->nelem); + return if3(vec, replace(vec, str, zero, t), str); + } } + return ffi_array_in_common(tft, copy, src, vec, self, tft->nelem); } static void ffi_array_put_common(struct txr_ffi_type *tft, val vec, mem_t *dst, @@ -2498,8 +2506,11 @@ static void ffi_varray_put(struct txr_ffi_type *tft, val vec, mem_t *dst, static val ffi_varray_in(struct txr_ffi_type *tft, int copy, mem_t *src, val vec, val self) { - cnum nelem = c_num(length(vec)) + tft->null_term; - return ffi_array_in_common(tft, copy, src, vec, self, nelem); + if (copy && vec) { + cnum nelem = c_num(length(vec)) + tft->null_term; + return ffi_array_in_common(tft, copy, src, vec, self, nelem); + } + return vec; } static val ffi_varray_null_term_in(struct txr_ffi_type *tft, int copy, mem_t *src, |