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Make identifiers str (not str8) objects throughout.

Browse source 
This affects the parser, various object implementations,
and all places that put identifiers into C string literals.

In testing, a number of crashes occurred as code would
fail when the recursion limit was reached (such as the
Unicode interning dictionary having key/value pairs where
key is not value). To solve these, I added an overflowed
flag, which allows for 50 more recursions after the
limit was reached and the exception was raised, and
a recursion_critical flag, which indicates that recursion
absolutely must be allowed, i.e. that a certain call
must not cause a stack overflow exception.

There are still some places where both str and str8 are
accepted as identifiers; these should eventually be
removed.
This commit is contained in:
Martin v. Löwis 2007-06-10 09:51:05 +00:00
parent 38e43c25ee
commit 5b222135f8
40 changed files with 462 additions and 289 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Objects/dictobject.c
View file

@ -1040,7 +1040,7 @@ dict_subscript(dictobject *mp, register PyObject *key)
static PyObject *missing_str = NULL;
if (missing_str == NULL)
missing_str =
PyString_InternFromString("__missing__");
PyUnicode_InternFromString("__missing__");
missing = _PyType_Lookup(mp->ob_type, missing_str);
if (missing != NULL)
return PyObject_CallFunctionObjArgs(missing,
@ -2073,7 +2073,7 @@ PyObject *
PyDict_GetItemString(PyObject *v, const char *key)
{
PyObject *kv, *rv;
kv = PyString_FromString(key);
kv = PyUnicode_FromString(key);
if (kv == NULL)
return NULL;
rv = PyDict_GetItem(v, kv);
@ -2086,10 +2086,10 @@ PyDict_SetItemString(PyObject *v, const char *key, PyObject *item)
{
PyObject *kv;
int err;
kv = PyString_FromString(key);
kv = PyUnicode_FromString(key);
if (kv == NULL)
return -1;
PyString_InternInPlace(&kv); /* XXX Should we really? */
PyUnicode_InternInPlace(&kv); /* XXX Should we really? */
err = PyDict_SetItem(v, kv, item);
Py_DECREF(kv);
return err;
@ -2100,7 +2100,7 @@ PyDict_DelItemString(PyObject *v, const char *key)
{
PyObject *kv;
int err;
kv = PyString_FromString(key);
kv = PyUnicode_FromString(key);
if (kv == NULL)
return -1;
err = PyDict_DelItem(v, kv);