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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

12
Objects/stringobject.c
View file

@ -686,6 +686,11 @@ string_getbuffer(register PyObject *op)
Py_ssize_t
PyString_Size(register PyObject *op)
{
if (PyUnicode_Check(op)) {
op = _PyUnicode_AsDefaultEncodedString(op, NULL);
if (!op)
return -1;
}
if (!PyString_Check(op))
return string_getsize(op);
return ((PyStringObject *)op) -> ob_size;
@ -694,6 +699,11 @@ PyString_Size(register PyObject *op)
/*const*/ char *
PyString_AsString(register PyObject *op)
{
if (PyUnicode_Check(op)) {
op = _PyUnicode_AsDefaultEncodedString(op, NULL);
if (!op)
return NULL;
}
if (!PyString_Check(op))
return string_getbuffer(op);
return ((PyStringObject *)op) -> ob_sval;
@ -824,7 +834,7 @@ PyString_Repr(PyObject *obj, int smartquotes)
{
static const char *hexdigits = "0123456789abcdef";
register PyStringObject* op = (PyStringObject*) obj;
Py_ssize_t length = PyUnicode_GET_SIZE(op);
Py_ssize_t length = PyString_GET_SIZE(op);
size_t newsize = 2 + 4 * op->ob_size;
PyObject *v;
if (newsize > PY_SSIZE_T_MAX || newsize / 4 != op->ob_size) {