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bpo-36817: Fix reference leak for expr_text in f-string = parsing (GH-13249)

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Pablo Galindo 2019-05-11 20:54:37 +01:00 • committed by GitHub
parent 90fb04c1e2
commit 5833e94d86
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1 changed files with 7 additions and 2 deletions
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Python/ast.c
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@ -5228,11 +5228,16 @@ fstring_find_expr(const char **str, const char *end, int raw, int recurse_lvl,
} }
if (equal_flag) { if (equal_flag) {
Py_ssize_t len = expr_text_end-expr_start; Py_ssize_t len = expr_text_end - expr_start;
expr_text = PyUnicode_FromStringAndSize(expr_start, len); expr_text = PyUnicode_FromStringAndSize(expr_start, len);
if (!expr_text) if (!expr_text) {
goto error; goto error;
} }
if (PyArena_AddPyObject(c->c_arena, expr_text) < 0) {
Py_DECREF(expr_text);
goto error;
}
}
/* Check for the format spec, if present. */ /* Check for the format spec, if present. */
if (*str >= end) if (*str >= end)