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Make identifiers str (not str8) objects throughout.

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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
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4
Include/stringobject.h
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@ -84,8 +84,8 @@ PyAPI_FUNC(void) _Py_ReleaseInternedStrings(void);
#define PyString_CHECK_INTERNED(op) (((PyStringObject *)(op))->ob_sstate)
/* Macro, trading safety for speed */
#define PyString_AS_STRING(op) (((PyStringObject *)(op))->ob_sval)
#define PyString_GET_SIZE(op) (((PyStringObject *)(op))->ob_size)
#define PyString_AS_STRING(op) (assert(PyString_Check(op)),(((PyStringObject *)(op))->ob_sval))
#define PyString_GET_SIZE(op) (assert(PyString_Check(op)),(((PyStringObject *)(op))->ob_size))
/* _PyString_Join(sep, x) is like sep.join(x). sep must be PyStringObject*,
x must be an iterable object. */