Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Revision c5fc15685202cda73f7c3f5c6f299b0945f58508 authored by Pablo Galindo on 22 April 2020, 22:29:27 UTC, committed by GitHub on 22 April 2020, 22:29:27 UTC
Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
1 parent a81849b
Tip revision: c5fc15685202cda73f7c3f5c6f299b0945f58508 authored by Pablo Galindo on 22 April 2020, 22:29:27 UTC
bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)
bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)
Tip revision: c5fc156
asdl.c
#include "Python.h"
#include "asdl.h"
asdl_seq *
_Py_asdl_seq_new(Py_ssize_t size, PyArena *arena)
{
asdl_seq *seq = NULL;
size_t n;
/* check size is sane */
if (size < 0 ||
(size && (((size_t)size - 1) > (SIZE_MAX / sizeof(void *))))) {
PyErr_NoMemory();
return NULL;
}
n = (size ? (sizeof(void *) * (size - 1)) : 0);
/* check if size can be added safely */
if (n > SIZE_MAX - sizeof(asdl_seq)) {
PyErr_NoMemory();
return NULL;
}
n += sizeof(asdl_seq);
seq = (asdl_seq *)PyArena_Malloc(arena, n);
if (!seq) {
PyErr_NoMemory();
return NULL;
}
memset(seq, 0, n);
seq->size = size;
return seq;
}
asdl_int_seq *
_Py_asdl_int_seq_new(Py_ssize_t size, PyArena *arena)
{
asdl_int_seq *seq = NULL;
size_t n;
/* check size is sane */
if (size < 0 ||
(size && (((size_t)size - 1) > (SIZE_MAX / sizeof(void *))))) {
PyErr_NoMemory();
return NULL;
}
n = (size ? (sizeof(void *) * (size - 1)) : 0);
/* check if size can be added safely */
if (n > SIZE_MAX - sizeof(asdl_seq)) {
PyErr_NoMemory();
return NULL;
}
n += sizeof(asdl_seq);
seq = (asdl_int_seq *)PyArena_Malloc(arena, n);
if (!seq) {
PyErr_NoMemory();
return NULL;
}
memset(seq, 0, n);
seq->size = size;
return seq;
}
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