CPreProcessor: don't use isTagExtra() to pick up tags for adding them to a signature string

The original code scanned corkQueue to pick up tags for making
signature string. To avoid adding unwanted tags to the signature
string, isTagExtra was used (522de3f).

However, filtering with isTagExtra was too aggressive; tags extracted
by the CPreProcessor parser running as a part of guest parser were
rejected.

This change uses an intArray. Instead of filtering candidate items in
the corkQueue, the CPreProcessor collects tags for parameters to
the intArray. The parameters are parts of a signature, not candidates.
Therefore we don't need "filtering" anymore.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

Author: masatake

parsers/cpreprocessor.c

@@ -871,7 +871,7 @@ static void makeIncludeTag (const  char *const name, bool systemHeader)
 	}
 }
 
-static void makeParamTag (vString *name, short nth, bool placeholder)
+static int makeParamTag (vString *name, short nth, bool placeholder)
 {
 	bool standing_alone = doesCPreProRunAsStandaloneParser(CPREPRO_MACRO);
 
@@ -890,15 +890,17 @@ static void makeParamTag (vString *name, short nth, bool placeholder)
 		if (placeholder)
 			markTagAsPlaceholder (e, placeholder);
 	}
+	return r;
 }
 
-static void regenreateSignatureFromParameters (vString * buffer, int from, int to)
+static void makeSignatureStringFromParameters (vString * buffer, intArray *parameters)
 {
 	vStringPut(buffer, '(');
-	for (int pindex = from; pindex < to; pindex++)
+	for (size_t i = 0; i < intArrayCount (parameters); i++)
 	{
+		int pindex = intArrayItem (parameters, i);
 		tagEntryInfo *e = getEntryInCorkQueue (pindex);
-		if (e && !isTagExtra (e))
+		if (e)
 		{
 			vStringCatS (buffer, e->name);
 			vStringPut (buffer, ',');
@@ -939,6 +941,7 @@ static int directiveDefine (const int c, bool undef)
 
 			if (p == '(')
 			{
+				intArray *params = intArrayNew ();
 				vString *param = vStringNew ();
 				int param_start = (int)countEntryInCorkQueue();
 				do {
@@ -953,7 +956,8 @@ static int directiveDefine (const int c, bool undef)
 
 					if (vStringLength (param) > 0)
 					{
-						makeParamTag (param, nth++, vStringChar(param, 0) == '.');
+						int r = makeParamTag (param, nth++, vStringChar(param, 0) == '.');
+						intArrayAdd (params, r);
 						vStringClear (param);
 					}
 					if (p == '\\')
@@ -965,12 +969,13 @@ static int directiveDefine (const int c, bool undef)
 				if (p == ')')
 				{
 					vString *signature = vStringNew ();
-					regenreateSignatureFromParameters (signature, param_start, param_end);
+					makeSignatureStringFromParameters (signature, params);
 					r = makeDefineTag (vStringValue (Cpp.directive.name), vStringValue (signature), undef);
 					vStringDelete (signature);
 				}
 				else
 					r = makeDefineTag (vStringValue (Cpp.directive.name), NULL, undef);
+				intArrayDelete (params);
 
 				tagEntryInfo *e = getEntryInCorkQueue (r);
 				if (e)