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Several fixes reported by jim F.

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This commit is contained in:
Guido van Rossum 1997-04-02 05:31:09 +00:00
parent 2a7f58de1c
commit 4669fb474b
1 changed files with 28 additions and 31 deletions
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47
Objects/abstract.c
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@ -671,7 +671,7 @@ PySequence_GetItem(s, i)
if(i < 0) if(i < 0)
{ {
if(0 > (l=m->sq_length(s))) return NULL; if(! m->sq_length || 0 > (l=m->sq_length(s))) return NULL;
i += l; i += l;
} }
@ -689,13 +689,17 @@ PySequence_GetSlice(s, i1, i2)
if(! s) return Py_ReturnNullError(); if(! s) return Py_ReturnNullError();
if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_slice)) if(! ((m=s->ob_type->tp_as_sequence) && m->sq_slice))
return Py_ReturnMethodError("__getslice__"); return Py_ReturnMethodError("__getslice__");
if(0 > (l=m->sq_length(s))) return NULL; if(i1 < 0 || i2 < 0)
{
if(! m->sq_length || 0 > (l=m->sq_length(s))) return NULL;
if(i1 < 0) i1 += l; if(i1 < 0) i1 += l;
if(i2 < 0) i2 += l; if(i2 < 0) i2 += l;
}
return m->sq_slice(s,i1,i2); return m->sq_slice(s,i1,i2);
} }
@ -802,16 +806,8 @@ PySequence_Tuple(s)
for(i=0; i < l; i++) for(i=0; i < l; i++)
{ {
if((item=PySequence_GetItem(s,i))) if(((item=PySequence_GetItem(s,i))) ||
{ PyTuple_SetItem(t,i,item) == -1)
if(PyTuple_SetItem(t,i,item) == -1)
{
Py_DECREF(item);
Py_DECREF(t);
return NULL;
}
}
else
{ {
Py_DECREF(t); Py_DECREF(t);
return NULL; return NULL;
@ -826,21 +822,16 @@ PySequence_List(s)
{ {
int l, i; int l, i;
PyObject *t, *item; PyObject *t, *item;
if(! s) return Py_ReturnNullError(); if(! s) return Py_ReturnNullError();
Py_TRY((l=PySequence_Length(s)) != -1); Py_TRY((l=PySequence_Length(s)) != -1);
Py_TRY(t=PyList_New(l)); Py_TRY(t=PyList_New(l));
for(i=0; i < l; i++) for(i=0; i < l; i++)
{ {
if((item=PySequence_GetItem(s,i))) if((item=PySequence_GetItem(s,i)) ||
{ PyList_SetItem(t,i,item) == -1)
if(PyList_SetItem(t,i,item) == -1)
{
Py_DECREF(item);
Py_DECREF(t);
return NULL;
}
}
else
{ {
Py_DECREF(t); Py_DECREF(t);
return NULL; return NULL;
@ -946,7 +937,10 @@ PyMapping_HasKeyString(o, key)
PyObject *v; PyObject *v;
v=PyMapping_GetItemString(o,key); v=PyMapping_GetItemString(o,key);
if(v) return 1; if(v) {
Py_DECREF(v);
return 1;
}
PyErr_Clear(); PyErr_Clear();
return 0; return 0;
} }
@ -959,7 +953,10 @@ PyMapping_HasKey(o, key)
PyObject *v; PyObject *v;
v=PyObject_GetItem(o,key); v=PyObject_GetItem(o,key);
if(v) return 1; if(v) {
Py_DECREF(v);
return 1;
}
PyErr_Clear(); PyErr_Clear();
return 0; return 0;
} }