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/*
* Copyright (c) 1996-2002, Darren Hiebert
*
* This source code is released for free distribution under the terms of the
* GNU General Public License version 2 or (at your option) any later version.
*
* This module contains debugging functions.
*/
/*
* INCLUDE FILES
*/
#include "general.h" /* must always come first */
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "debug.h"
#include "entry_p.h"
#include "options.h"
#include "parse_p.h"
#include "read.h"
/*
* FUNCTION DEFINITIONS
*/
#ifdef DEBUG
#include "htable.h"
extern void lineBreak (void) {} /* provides a line-specified break point */
extern void debugPrintf (
const enum eDebugLevels level, const char *const format, ... )
{
va_list ap;
va_start (ap, format);
if (debug (level))
vprintf (format, ap);
fflush (stdout);
va_end (ap);
}
extern void debugPutc (const int level, const int c)
{
if (debug (level) && c != EOF)
{
if (c == STRING_SYMBOL) printf ("\"string\"");
else if (c == CHAR_SYMBOL) printf ("'c'");
else putchar (c);
fflush (stdout);
}
}
extern void debugParseNest (const bool increase, const unsigned int level)
{
debugPrintf (DEBUG_PARSE, "<*%snesting:%d*>", increase ? "++" : "--", level);
}
extern void debugCppNest (const bool begin, const unsigned int level)
{
debugPrintf (DEBUG_CPP, "<*cpp:%s level %d*>", begin ? "begin":"end", level);
}
extern void debugCppIgnore (const bool ignore)
{
debugPrintf (DEBUG_CPP, "<*cpp:%s ignore*>", ignore ? "begin":"end");
}
extern void debugEntry (const tagEntryInfo *const tag)
{
const char *const scope = tag->isFileScope ? "{fs}" : "";
if (debug (DEBUG_PARSE))
{
langType lang = (tag->extensionFields.scopeLangType == LANG_AUTO)
? tag->langType
: tag->extensionFields.scopeLangType;
kindDefinition *scopeKindDef = getLanguageKind(lang,
tag->extensionFields.scopeKindIndex);
printf ("<#%s%s:%s", scope, getTagKindName(tag), tag->name);
if (tag->extensionFields.scopeKindIndex != KIND_GHOST_INDEX &&
tag->extensionFields.scopeName != NULL)
printf (" [%s:%s]", scopeKindDef->name,
tag->extensionFields.scopeName);
if (isFieldEnabled (FIELD_INHERITANCE) &&
tag->extensionFields.inheritance != NULL)
printf (" [inherits:%s]", tag->extensionFields.inheritance);
if (isFieldEnabled (FIELD_FILE_SCOPE) &&
tag->isFileScope && ! isInputHeaderFile ())
printf (" [file:]");
if (isFieldEnabled (FIELD_ACCESS) &&
tag->extensionFields.access != NULL)
printf (" [access:%s]", tag->extensionFields.access);
if (isFieldEnabled (FIELD_IMPLEMENTATION) &&
tag->extensionFields.implementation != NULL)
printf (" [imp:%s]", tag->extensionFields.implementation);
if (isFieldEnabled (FIELD_TYPE_REF) &&
tag->extensionFields.typeRef [0] != NULL &&
tag->extensionFields.typeRef [1] != NULL)
printf (" [%s:%s]", tag->extensionFields.typeRef [0],
tag->extensionFields.typeRef [1]);
printf ("#>");
fflush (stdout);
}
}
extern void debugAssert (const char *assertion, const char *file, unsigned int line, const char *function)
{
fprintf(stderr, "ctags: %s:%u: %s%sAssertion `%s' failed.\n",
file, line,
function ? function : "", function ? ": " : "",
assertion);
if (getInputFileName())
{
fprintf(stderr, "ctags: %s:%u: parsing %s:%lu as %s\n",
file, line,
getInputFileName(), getInputLineNumber(),
getInputLanguageName());
}
fflush(stderr);
abort();
}
static int debugScopeDepth;
#define DEBUG_INDENT_UNIT 4
static char debugPrefix[DEBUG_INDENT_UNIT + 1];
extern void debugInit (void)
{
memset(debugPrefix, ' ', DEBUG_INDENT_UNIT);
debugPrefix[DEBUG_INDENT_UNIT] = '\0';
}
extern void debugIndent(void)
{
for(int i=0;i< debugScopeDepth;i++)
fputs(debugPrefix, stderr);
}
extern void debugInc(void)
{
debugScopeDepth++;
}
extern void debugDec(void)
{
debugScopeDepth--;
if(debugScopeDepth < 0)
debugScopeDepth = 0;
}
struct circularRefChecker {
hashTable *visitTable;
int counter;
};
extern void circularRefCheckerDestroy (struct circularRefChecker * checker)
{
hashTableDelete (checker->visitTable);
checker->visitTable = NULL;
eFree (checker);
}
extern struct circularRefChecker * circularRefCheckerNew (void)
{
Assert (sizeof(void *) >= sizeof(int));
struct circularRefChecker *c = xMalloc (1, struct circularRefChecker);
c->visitTable = hashTableNew (17, hashPtrhash, hashPtreq, NULL, NULL);
c->counter = 0;
return c;
}
extern int circularRefCheckerCheck (struct circularRefChecker *c, void *ptr)
{
union conv {
int i;
void *ptr;
} v;
v.ptr = hashTableGetItem(c->visitTable, ptr);
if (v.ptr)
return v.i;
else
{
v.i = ++c->counter;
hashTablePutItem (c->visitTable, ptr, v.ptr);
return 0;
}
}
extern int circularRefCheckerGetCurrent (struct circularRefChecker *c)
{
return c->counter;
}
extern void circularRefCheckClear (struct circularRefChecker *c)
{
hashTableClear (c->visitTable);
c->counter = 0;
}
#endif
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