Skip to main content

Browse the archive

Staging
v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 3b93688db6abe8a1b3a975ad8a2e770af056c9aa authored by Andrew M. Kuchling on 04 October 2006, 13:17:42 UTC, committed by Andrew M. Kuchling on 04 October 2006, 13:17:42 UTC 
[Backport r51245 | neal.norwitz]
 
Move/copy assert for tstate != NULL before first use.
Verify that PyEval_Get{Globals,Locals} returned valid pointers.

Klocwork 231-232
1 parent 3184f24
Raw File
Tip revision: 3b93688db6abe8a1b3a975ad8a2e770af056c9aa authored by Andrew M. Kuchling on 04 October 2006, 13:17:42 UTC
[Backport r51245 | neal.norwitz]
Tip revision: 3b93688
grammar1.c 

/* Grammar subroutines needed by parser */

#include "Python.h"
#include "pgenheaders.h"
#include "grammar.h"
#include "token.h"

/* Return the DFA for the given type */

dfa *
PyGrammar_FindDFA(grammar *g, register int type)
{
	register dfa *d;
#if 1
	/* Massive speed-up */
	d = &g->g_dfa[type - NT_OFFSET];
	assert(d->d_type == type);
	return d;
#else
	/* Old, slow version */
	register int i;
	
	for (i = g->g_ndfas, d = g->g_dfa; --i >= 0; d++) {
		if (d->d_type == type)
			return d;
	}
	assert(0);
	/* NOTREACHED */
#endif
}

char *
PyGrammar_LabelRepr(label *lb)
{
	static char buf[100];
	
	if (lb->lb_type == ENDMARKER)
		return "EMPTY";
	else if (ISNONTERMINAL(lb->lb_type)) {
		if (lb->lb_str == NULL) {
			PyOS_snprintf(buf, sizeof(buf), "NT%d", lb->lb_type);
			return buf;
		}
		else
			return lb->lb_str;
	}
	else {
		if (lb->lb_str == NULL)
			return _PyParser_TokenNames[lb->lb_type];
		else {
			PyOS_snprintf(buf, sizeof(buf), "%.32s(%.32s)",
				_PyParser_TokenNames[lb->lb_type], lb->lb_str);
			return buf;
		}
	}
}
back to top