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bpo-35059: Enhance _PyObject_AssertFailed() #10642

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Merged
vstinner merged 1 commit into from
Nov 21, 2018
Merged

bpo-35059: Enhance _PyObject_AssertFailed() #10642

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8 changes: 5 additions & 3 deletions 8 Include/object.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1158,8 +1158,8 @@ _PyObject_DebugTypeStats(FILE *out);
((expr) \
? (void)(0) \
: _PyObject_AssertFailed((obj), \
(msg), \
Py_STRINGIFY(expr), \
(msg), \
__FILE__, \
__LINE__, \
__func__))
Expand All @@ -1169,11 +1169,13 @@ _PyObject_DebugTypeStats(FILE *out);

/* Declare and define _PyObject_AssertFailed() even when NDEBUG is defined,
to avoid causing compiler/linker errors when building extensions without
NDEBUG against a Python built with NDEBUG defined. */
NDEBUG against a Python built with NDEBUG defined.

msg, expr and function can be NULL. */
PyAPI_FUNC(void) _PyObject_AssertFailed(
PyObject *obj,
const char *msg,
const char *expr,
const char *msg,
const char *file,
int line,
const char *function);
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2 changes: 1 addition & 1 deletion 2 Lib/test/test_capi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -330,7 +330,7 @@ def test_negative_refcount(self):
rc, out, err = assert_python_failure('-c', code)
self.assertRegex(err,
br'_testcapimodule\.c:[0-9]+: '
br'_Py_NegativeRefcount: Assertion ".*" failed; '
br'_Py_NegativeRefcount: Assertion failed: '
br'object has negative ref count')


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24 changes: 14 additions & 10 deletions 24 Objects/object.c
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Expand Up @@ -205,8 +205,7 @@ void _Py_dec_count(PyTypeObject *tp)
void
_Py_NegativeRefcount(const char *filename, int lineno, PyObject *op)
{
_PyObject_AssertFailed(op, "object has negative ref count",
"op->ob_refcnt >= 0",
_PyObject_AssertFailed(op, NULL, "object has negative ref count",
filename, lineno, __func__);
}

Expand Down Expand Up @@ -2219,20 +2218,25 @@ _PyTrash_thread_destroy_chain(void)


void
_PyObject_AssertFailed(PyObject *obj, const char *msg, const char *expr,
_PyObject_AssertFailed(PyObject *obj, const char *expr, const char *msg,
const char *file, int line, const char *function)
{
fprintf(stderr,
"%s:%d: %s: Assertion \"%s\" failed",
file, line, function, expr);
fprintf(stderr, "%s:%d: ", file, line);
if (function) {
fprintf(stderr, "%s: ", function);
}
fflush(stderr);

if (msg) {
fprintf(stderr, "; %s.\n", msg);
if (expr) {
fprintf(stderr, "Assertion \"%s\" failed", expr);
}
else {
fprintf(stderr, ".\n");
fprintf(stderr, "Assertion failed");
}
fflush(stderr);
if (msg) {
fprintf(stderr, ": %s", msg);
}
fprintf(stderr, "\n");
fflush(stderr);

if (obj == NULL) {
Expand Down
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