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bpo-35879: Fix type comment leaks (GH-11728) 

* Fix leak for # type: ignore
* Fix the type comment leak
This commit is contained in:
Guido van Rossum 2019-02-01 15:28:13 -08:00 committed by GitHub
parent ac19081c26
commit d2b4c19d53
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 9 additions and 3 deletions
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1
Parser/parsetok.c
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@ -330,6 +330,7 @@ parsetok(struct tok_state *tok, grammar *g, int start, perrdetail *err_ret,
}
if (type == TYPE_IGNORE) {
PyObject_FREE(str);
if (!growable_int_array_add(&type_ignores, tok->lineno)) {
err_ret->error = E_NOMEM;
break;

11
Python/ast.c
View File

@ -699,11 +699,16 @@ ast_error(struct compiling *c, const node *n, const char *errmsg, ...)
*/
static string
new_type_comment(const char *s)
new_type_comment(const char *s, struct compiling *c)
{
return PyUnicode_DecodeUTF8(s, strlen(s), NULL);
PyObject *res = PyUnicode_DecodeUTF8(s, strlen(s), NULL);
if (PyArena_AddPyObject(c->c_arena, res) < 0) {
Py_DECREF(res);
return NULL;
}
return res;
}
#define NEW_TYPE_COMMENT(n) new_type_comment(STR(n))
#define NEW_TYPE_COMMENT(n) new_type_comment(STR(n), c)
static int
num_stmts(const node *n)