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Add _PyBytesWriter_WriteBytes() to factorize the code

This commit is contained in:
Victor Stinner 2015-10-09 12:57:22 +02:00
parent ad7715891e
commit ce179bf6ba
4 changed files with 35 additions and 16 deletions
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7
Include/bytesobject.h
View File

@ -174,6 +174,13 @@ PyAPI_FUNC(char*) _PyBytesWriter_Alloc(_PyBytesWriter *writer,
PyAPI_FUNC(char*) _PyBytesWriter_Prepare(_PyBytesWriter *writer,
char *str,
Py_ssize_t size);
/* Write bytes.
Raise an exception and return NULL on error. */
PyAPI_FUNC(char*) _PyBytesWriter_WriteBytes(_PyBytesWriter *writer,
char *str,
char *bytes,
Py_ssize_t size);
#endif /* Py_LIMITED_API */
#ifdef __cplusplus

14
Objects/bytesobject.c
View File

@ -3995,3 +3995,17 @@ _PyBytesWriter_Finish(_PyBytesWriter *writer, char *str)
return result;
}
char*
_PyBytesWriter_WriteBytes(_PyBytesWriter *writer, char *str,
char *bytes, Py_ssize_t size)
{
str = _PyBytesWriter_Prepare(writer, str, size);
if (str == NULL)
return NULL;
Py_MEMCPY(str, bytes, size);
str += size;
return str;
}

20
Objects/stringlib/codecs.h
View File

@ -388,24 +388,24 @@ STRINGLIB(utf8_encoder)(PyObject *unicode,
/* substract preallocated bytes */
writer.min_size -= max_char_size;
if (PyBytes_Check(rep))
repsize = PyBytes_GET_SIZE(rep);
else
repsize = PyUnicode_GET_LENGTH(rep);
p = _PyBytesWriter_Prepare(&writer, p, repsize);
if (PyBytes_Check(rep)) {
p = _PyBytesWriter_WriteBytes(&writer, p,
PyBytes_AS_STRING(rep),
PyBytes_GET_SIZE(rep));
if (p == NULL)
goto error;
if (PyBytes_Check(rep)) {
memcpy(p, PyBytes_AS_STRING(rep), repsize);
p += repsize;
}
else {
/* rep is unicode */
if (PyUnicode_READY(rep) < 0)
goto error;
repsize = PyUnicode_GET_LENGTH(rep);
p = _PyBytesWriter_Prepare(&writer, p, repsize);
if (p == NULL)
goto error;
if (!PyUnicode_IS_ASCII(rep)) {
raise_encode_exception(&exc, "utf-8",
unicode,

8
Objects/unicodeobject.c
View File

@ -6706,14 +6706,12 @@ unicode_encode_ucs1(PyObject *unicode,
if (PyBytes_Check(repunicode)) {
/* Directly copy bytes result to output. */
repsize = PyBytes_Size(repunicode);
str = _PyBytesWriter_Prepare(&writer, str, repsize);
str = _PyBytesWriter_WriteBytes(&writer, str,
PyBytes_AS_STRING(repunicode),
PyBytes_GET_SIZE(repunicode));
if (str == NULL)
goto onError;
memcpy(str, PyBytes_AsString(repunicode), repsize);
str += repsize;
pos = newpos;
Py_DECREF(repunicode);
break;