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This patch makes sure that the function name always appears in the error

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message, and tries to make the messages more consistent and helpful when
the wrong number of arguments or duplicate keyword arguments are supplied.
Comes with more tests for test_extcall.py and and an update to an error
message in test/output/test_pyexpat.
This commit is contained in:
Ka-Ping Yee 2001-01-15 22:14:16 +00:00
parent 1ff08b1243
commit 2057970601
5 changed files with 205 additions and 66 deletions
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61
Python/getargs.c
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@ -130,16 +130,18 @@ vgetargs1(PyObject *args, char *format, va_list *p_va, int compat)
if (max == 0) {
if (args == NULL)
return 1;
sprintf(msgbuf, "%s requires no arguments",
fname==NULL ? "function" : fname);
sprintf(msgbuf, "%s%s takes no arguments",
fname==NULL ? "function" : fname,
fname==NULL ? "" : "()");
PyErr_SetString(PyExc_TypeError, msgbuf);
return 0;
}
else if (min == 1 && max == 1) {
if (args == NULL) {
sprintf(msgbuf,
"%s requires at least one argument",
fname==NULL ? "function" : fname);
"%s%s takes at least one argument",
fname==NULL ? "function" : fname,
fname==NULL ? "" : "()");
PyErr_SetString(PyExc_TypeError, msgbuf);
return 0;
}
@ -167,8 +169,9 @@ vgetargs1(PyObject *args, char *format, va_list *p_va, int compat)
if (len < min || max < len) {
if (message == NULL) {
sprintf(msgbuf,
"%s requires %s %d argument%s; %d given",
"%s%s takes %s %d argument%s (%d given)",
fname==NULL ? "function" : fname,
fname==NULL ? "" : "()",
min==max ? "exactly"
: len < min ? "at least" : "at most",
len < min ? min : max,
@ -213,22 +216,26 @@ seterror(int iarg, char *msg, int *levels, char *fname, char *message)
if (PyErr_Occurred())
return;
if (iarg == 0 && message == NULL)
message = msg;
else if (message == NULL) {
if (fname != NULL) {
sprintf(p, "%s, ", fname);
sprintf(p, "%s() ", fname);
p += strlen(p);
}
sprintf(p, "argument %d", iarg);
i = 0;
p += strlen(p);
while (levels[i] > 0) {
sprintf(p, ", item %d", levels[i]-1);
if (iarg != 0) {
sprintf(p, "argument %d", iarg);
i = 0;
p += strlen(p);
i++;
while (levels[i] > 0) {
sprintf(p, ", item %d", levels[i]-1);
p += strlen(p);
i++;
}
}
sprintf(p, ": expected %s found", msg);
else {
sprintf(p, "argument");
p += strlen(p);
}
sprintf(p, " %s", msg);
message = buf;
}
PyErr_SetString(PyExc_TypeError, message);
@ -247,10 +254,9 @@ seterror(int iarg, char *msg, int *levels, char *fname, char *message)
*p_va is undefined,
*levels is a 0-terminated list of item numbers,
*msgbuf contains an error message, whose format is:
"<typename1>, <typename2>", where:
"must be <typename1>, not <typename2>", where:
<typename1> is the name of the expected type, and
<typename2> is the name of the actual type,
(so you can surround it by "expected ... found"),
and msgbuf is returned.
*/
@ -281,10 +287,11 @@ converttuple(PyObject *arg, char **p_format, va_list *p_va, int *levels,
n++;
}
if (!PySequence_Check(arg)) {
if (!PySequence_Check(arg) || PyString_Check(arg)) {
levels[0] = 0;
sprintf(msgbuf,
toplevel ? "%d arguments, %s" : "%d-sequence, %s",
toplevel ? "expected %d arguments, not %s" :
"must be %d-item sequence, not %s",
n, arg == Py_None ? "None" : arg->ob_type->tp_name);
return msgbuf;
}
@ -292,11 +299,12 @@ converttuple(PyObject *arg, char **p_format, va_list *p_va, int *levels,
if ((i = PySequence_Size(arg)) != n) {
levels[0] = 0;
sprintf(msgbuf,
toplevel ? "%d arguments, %d" : "%d-sequence, %d-sequence",
n, i);
toplevel ? "expected %d arguments, not %d" :
"must be sequence of length %d, not %d",
n, i);
return msgbuf;
}
format = *p_format;
for (i = 0; i < n; i++) {
char *msg;
@ -310,7 +318,7 @@ converttuple(PyObject *arg, char **p_format, va_list *p_va, int *levels,
return msg;
}
}
*p_format = format;
return NULL;
}
@ -343,14 +351,14 @@ convertitem(PyObject *arg, char **p_format, va_list *p_va, int *levels,
/* Convert a non-tuple argument. Adds to convertsimple1 functionality
by appending ", <actual argument type>" to error message. */
by formatting messages as "must be <desired type>, not <actual type>". */
static char *
convertsimple(PyObject *arg, char **p_format, va_list *p_va, char *msgbuf)
{
char *msg = convertsimple1(arg, p_format, p_va);
if (msg != NULL) {
sprintf(msgbuf, "%.50s, %.50s", msg,
sprintf(msgbuf, "must be %.50s, not %.50s", msg,
arg == Py_None ? "None" : arg->ob_type->tp_name);
msg = msgbuf;
}
@ -1063,8 +1071,9 @@ vgetargskeywords(PyObject *args, PyObject *keywords, char *format,
if (len < min || max < len) {
if (message == NULL) {
sprintf(msgbuf,
"%s requires %s %d argument%s; %d given",
"%s%s takes %s %d argument%s (%d given)",
fname==NULL ? "function" : fname,
fname==NULL ? "" : "()",
min==max ? "exactly"
: len < min ? "at least" : "at most",
len < min ? min : max,