static void
show_warning(PyObject *filename, int lineno, PyObject *text, PyObject
*category, PyObject *sourceline)
{
PyObject *f_stderr;
PyObject *name;
char lineno_str[128];
PyOS_snprintf(lineno_str, sizeof(lineno_str), ":%d: ", lineno);
name = PyObject_GetAttrString(category, "__name__");
if (name == NULL) /* XXX Can an object lack a '__name__' attribute? */
return;
f_stderr = PySys_GetObject("stderr");
if (f_stderr == NULL) {
fprintf(stderr, "lost sys.stderr\n");
Py_DECREF(name);
return;
}
/* Print "filename:lineno: category: text\n" */
PyFile_WriteObject(filename, f_stderr, Py_PRINT_RAW);
PyFile_WriteString(lineno_str, f_stderr);
PyFile_WriteObject(name, f_stderr, Py_PRINT_RAW);
PyFile_WriteString(": ", f_stderr);
PyFile_WriteObject(text, f_stderr, Py_PRINT_RAW);
PyFile_WriteString("\n", f_stderr);
Py_XDECREF(name);
/* Print " source_line\n" */
if (sourceline) {
char *source_line_str = PyString_AS_STRING(sourceline);
while (*source_line_str == ' ' || *source_line_str == '\t' ||
*source_line_str == '\014')
source_line_str++;
PyFile_WriteString(source_line_str, f_stderr);
PyFile_WriteString("\n", f_stderr);
}
else
_Py_DisplaySourceLine(f_stderr, PyString_AS_STRING(filename),
lineno, 2);
PyErr_Clear();
}
static int
tb_displayline(PyObject *f, PyObject *filename, int lineno, PyObject *name)
{
int err;
PyObject *line;
if (filename == NULL || name == NULL)
return -1;
line = PyUnicode_FromFormat(" File \"%U\", line %d, in %U\n",
filename, lineno, name);
if (line == NULL)
return -1;
err = PyFile_WriteObject(line, f, Py_PRINT_RAW);
Py_DECREF(line);
if (err != 0)
return err;
return _Py_DisplaySourceLine(f, filename, lineno, 4);
}
static int
tb_displayline(PyObject *f, PyObject *filename, int lineno, PyObject *name)
{
int err;
PyObject *line;
if (filename == NULL || name == NULL)
return -1;
line = PyUnicode_FromFormat(" File \"%U\", line %d, in %U\n",
filename, lineno, name);
if (line == NULL)
return -1;
err = PyFile_WriteObject(line, f, Py_PRINT_RAW);
Py_DECREF(line);
if (err != 0)
return err;
/* ignore errors since we can't report them, can we? */
if (_Py_DisplaySourceLine(f, filename, lineno, 4))
PyErr_Clear();
return err;
}
static void
show_warning(PyObject *filename, int lineno, PyObject *text,
PyObject *category, PyObject *sourceline)
{
PyObject *f_stderr;
PyObject *name;
char lineno_str[128];
_Py_IDENTIFIER(__name__);
PyOS_snprintf(lineno_str, sizeof(lineno_str), ":%d: ", lineno);
name = _PyObject_GetAttrId(category, &PyId___name__);
if (name == NULL) /* XXX Can an object lack a '__name__' attribute? */
goto error;
f_stderr = _PySys_GetObjectId(&PyId_stderr);
if (f_stderr == NULL) {
fprintf(stderr, "lost sys.stderr\n");
goto error;
}
/* Print "filename:lineno: category: text\n" */
if (PyFile_WriteObject(filename, f_stderr, Py_PRINT_RAW) < 0)
goto error;
if (PyFile_WriteString(lineno_str, f_stderr) < 0)
goto error;
if (PyFile_WriteObject(name, f_stderr, Py_PRINT_RAW) < 0)
goto error;
if (PyFile_WriteString(": ", f_stderr) < 0)
goto error;
if (PyFile_WriteObject(text, f_stderr, Py_PRINT_RAW) < 0)
goto error;
if (PyFile_WriteString("\n", f_stderr) < 0)
goto error;
Py_CLEAR(name);
/* Print " source_line\n" */
if (sourceline) {
int kind;
void *data;
Py_ssize_t i, len;
Py_UCS4 ch;
PyObject *truncated;
if (PyUnicode_READY(sourceline) < 1)
goto error;
kind = PyUnicode_KIND(sourceline);
data = PyUnicode_DATA(sourceline);
len = PyUnicode_GET_LENGTH(sourceline);
for (i=0; i<len; i++) {
ch = PyUnicode_READ(kind, data, i);
if (ch != ' ' && ch != '\t' && ch != '\014')
break;
}
truncated = PyUnicode_Substring(sourceline, i, len);
if (truncated == NULL)
goto error;
PyFile_WriteObject(sourceline, f_stderr, Py_PRINT_RAW);
Py_DECREF(truncated);
PyFile_WriteString("\n", f_stderr);
}
else {
_Py_DisplaySourceLine(f_stderr, filename, lineno, 2);
}
error:
Py_XDECREF(name);
PyErr_Clear();
}
