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

bpo-35879: Fix type comment leaks (GH-11728) · python/cpython@d2b4c19

2 files changed

lines changed

Original file line number	Diff line number	Diff line change
`@@ -330,6 +330,7 @@ parsetok(struct tok_state tok, grammar g, int start, perrdetail *err_ret,`
`330`	`330`	`}`
`331`	`331`
`332`	`332`	`if (type == TYPE_IGNORE) {`
	`333`	`+PyObject_FREE(str);`
`333`	`334`	`if (!growable_int_array_add(&type_ignores, tok->lineno)) {`
`334`	`335`	`err_ret->error = E_NOMEM;`
`335`	`336`	`break;`

Original file line number	Diff line number	Diff line change
`@@ -699,11 +699,16 @@ ast_error(struct compiling c, const node n, const char *errmsg, ...)`
`699`	`699`	`*/`
`700`	`700`
`701`	`701`	`static string`
`702`		`-new_type_comment(const char *s)`
	`702`	`+new_type_comment(const char s, struct compiling c)`
`703`	`703`	`{`
`704`		`-return PyUnicode_DecodeUTF8(s, strlen(s), NULL);`
	`704`	`+PyObject *res = PyUnicode_DecodeUTF8(s, strlen(s), NULL);`
	`705`	`+if (PyArena_AddPyObject(c->c_arena, res) < 0) {`
	`706`	`+Py_DECREF(res);`
	`707`	`+return NULL;`
	`708`	`+ }`
	`709`	`+return res;`
`705`	`710`	`}`
`706`		`-#define NEW_TYPE_COMMENT(n) new_type_comment(STR(n))`
	`711`	`+#define NEW_TYPE_COMMENT(n) new_type_comment(STR(n), c)`
`707`	`712`
`708`	`713`	`static int`
`709`	`714`	`num_stmts(const node *n)`