Migrate Tag classes to use IntrusivePtr

Deprecates various methods that previously took raw pointers

NEWS

@@ -137,6 +137,9 @@ Deprecated Functionality
   to associated ``Val`` type are now deprecated, the deprecation warning
   message will advice what new method to use instead.
 
+- Various methods of ``Tag`` classes are deprecated with the warning
+  message advising what new method to use instead.
+
 Zeek 3.1.0
 ==========
 

src/Tag.cc

@@ -4,37 +4,40 @@
 #include "Val.h"
 #include "IntrusivePtr.h"
 
-Tag::Tag(EnumType* etype, type_t arg_type, subtype_t arg_subtype)
+Tag::Tag(const IntrusivePtr<EnumType>& etype, type_t arg_type, subtype_t arg_subtype)
 	{
 	assert(arg_type > 0);
 
 	type = arg_type;
 	subtype = arg_subtype;
 	int64_t i = (int64_t)(type) | ((int64_t)subtype << 31);
-	Ref(etype);
-	val = etype->GetVal(i).release();
+	val = etype->GetVal(i);
 	}
 
-Tag::Tag(EnumVal* arg_val)
+Tag::Tag(EnumType* etype, type_t arg_type, subtype_t arg_subtype)
+	: Tag({NewRef{}, etype}, arg_type, arg_subtype)
+	{ }
+
+Tag::Tag(IntrusivePtr<EnumVal> arg_val)
 	{
 	assert(arg_val);
 
-	val = arg_val;
-	Ref(val);
+	val = std::move(arg_val);
 
 	int64_t i = val->InternalInt();
 	type = i & 0xffffffff;
 	subtype = (i >> 31) & 0xffffffff;
 	}
 
+Tag::Tag(EnumVal* arg_val)
+	: Tag({NewRef{}, arg_val})
+	{ }
+
 Tag::Tag(const Tag& other)
 	{
 	type = other.type;
 	subtype = other.subtype;
 	val = other.val;
-
-	if ( val )
-		Ref(val);
 	}
 
 Tag::Tag()
@@ -44,11 +47,7 @@ Tag::Tag()
 	val = nullptr;
 	}
 
-Tag::~Tag()
-	{
-	Unref(val);
-	val = nullptr;
-	}
+Tag::~Tag() = default;
 
 Tag& Tag::operator=(const Tag& other)
 	{
@@ -56,11 +55,7 @@ Tag& Tag::operator=(const Tag& other)
 		{
 		type = other.type;
 		subtype = other.subtype;
-		Unref(val);
 		val = other.val;
-
-		if ( val )
-			Ref(val);
 		}
 
 	return *this;
@@ -72,26 +67,28 @@ Tag& Tag::operator=(const Tag&& other) noexcept
 		{
 		type = other.type;
 		subtype = other.subtype;
-		Unref(val);
-		val = other.val;
-		other.val = nullptr;
+		val = std::move(other.val);
 		}
 
 	return *this;
 	}
 
-EnumVal* Tag::AsEnumVal(EnumType* etype) const
+const IntrusivePtr<EnumVal>& Tag::AsVal(const IntrusivePtr<EnumType>& etype) const
 	{
 	if ( ! val )
 		{
 		assert(type == 0 && subtype == 0);
-		Ref(etype);
-		val = etype->GetVal(0).release();
+		val = etype->GetVal(0);
 		}
 
 	return val;
 	}
 
+EnumVal* Tag::AsEnumVal(EnumType* etype) const
+	{
+	return AsVal({NewRef{}, etype}).get();
+	}
+
 std::string Tag::AsString() const
 	{
 	return fmt("%" PRIu32 "/%" PRIu32, type, subtype);

src/Tag.h

@@ -3,6 +3,7 @@
 #pragma once
 
 #include "zeek-config.h"
+#include "IntrusivePtr.h"
 
 #include <string>
 
@@ -114,6 +115,9 @@ protected:
 	 *
 	 * @param etype the script-layer enum type associated with the tag.
 	 */
+	const IntrusivePtr<EnumVal>& AsVal(const IntrusivePtr<EnumType>& etype) const;
+
+	[[deprecated("Remove in v4.1.  Use AsVal() instead.")]]
 	EnumVal* AsEnumVal(EnumType* etype) const;
 
 	/**
@@ -127,6 +131,9 @@ protected:
 	 * @param subtype The sub type, which is left to an analyzer for
 	 * interpretation. By default it's set to zero.
 	 */
+	Tag(const IntrusivePtr<EnumType>& etype, type_t type, subtype_t subtype = 0);
+
+	[[deprecated("Remove in v4.1.  Construct from IntrusivePtr& instead.")]]
 	Tag(EnumType* etype, type_t type, subtype_t subtype = 0);
 
 	/**
@@ -134,10 +141,13 @@ protected:
 	 *
 	 * @param val An enum value of script type \c Analyzer::Tag.
 	 */
+	explicit Tag(IntrusivePtr<EnumVal> val);
+
+	[[deprecated("Remove in v4.1.  Construct from IntrusivePtr instead.")]]
 	explicit Tag(EnumVal* val);
 
 private:
 	type_t type;            // Main type.
 	subtype_t subtype;      // Subtype.
-	mutable EnumVal* val;   // Script-layer value.
+	mutable IntrusivePtr<EnumVal> val;   // Script-layer value.
 };

src/analyzer/Analyzer.cc

@@ -687,13 +687,8 @@ void Analyzer::ProtocolConfirmation(Tag arg_tag)
 	if ( ! protocol_confirmation )
 		return;
 
-	EnumVal* tval = arg_tag ? arg_tag.AsEnumVal() : tag.AsEnumVal();
-
-	mgr.Enqueue(protocol_confirmation,
-		ConnVal(),
-		IntrusivePtr{NewRef{}, tval},
-		val_mgr->Count(id)
-	);
+	const auto& tval = arg_tag ? arg_tag.AsVal() : tag.AsVal();
+	mgr.Enqueue(protocol_confirmation, ConnVal(), tval, val_mgr->Count(id));
 	}
 
 void Analyzer::ProtocolViolation(const char* reason, const char* data, int len)
@@ -701,27 +696,21 @@ void Analyzer::ProtocolViolation(const char* reason, const char* data, int len)
 	if ( ! protocol_violation )
 		return;
 
-	StringVal* r;
+	IntrusivePtr<StringVal> r;
 
 	if ( data && len )
 		{
 		const char *tmp = copy_string(reason);
-		r = new StringVal(fmt("%s [%s%s]", tmp,
+		r = make_intrusive<StringVal>(fmt("%s [%s%s]", tmp,
 					fmt_bytes(data, min(40, len)),
 					len > 40 ? "..." : ""));
 		delete [] tmp;
 		}
 	else
-		r = new StringVal(reason);
+		r = make_intrusive<StringVal>(reason);
 
-	EnumVal* tval = tag.AsEnumVal();
-
-	mgr.Enqueue(protocol_violation,
-		ConnVal(),
-		IntrusivePtr{NewRef{}, tval},
-		val_mgr->Count(id),
-		IntrusivePtr{AdoptRef{}, r}
-	);
+	const auto& tval = tag.AsVal();
+	mgr.Enqueue(protocol_violation, ConnVal(), tval, val_mgr->Count(id), std::move(r));
 	}
 
 void Analyzer::AddTimer(analyzer_timer_func timer, double t,

src/analyzer/Manager.cc

@@ -572,8 +572,9 @@ void Manager::ScheduleAnalyzer(const IPAddr& orig, const IPAddr& resp,
 void Manager::ScheduleAnalyzer(const IPAddr& orig, const IPAddr& resp, PortVal* resp_p,
 			       Val* analyzer, double timeout)
 	{
-	EnumVal* ev = analyzer->AsEnumVal();
-	return ScheduleAnalyzer(orig, resp, resp_p->Port(), resp_p->PortType(), Tag(ev), timeout);
+	IntrusivePtr<EnumVal> ev{NewRef{}, analyzer->AsEnumVal()};
+	return ScheduleAnalyzer(orig, resp, resp_p->Port(), resp_p->PortType(),
+	                        Tag(std::move(ev)), timeout);
 	}
 
 Manager::tag_set Manager::GetScheduled(const Connection* conn)
@@ -624,8 +625,7 @@ bool Manager::ApplyScheduledAnalyzers(Connection* conn, bool init, TransportLaye
 
 		if ( scheduled_analyzer_applied )
 			conn->EnqueueEvent(scheduled_analyzer_applied, nullptr,
-			                   conn->ConnVal(),
-			                   IntrusivePtr{NewRef{}, it->AsEnumVal()});
+			                   conn->ConnVal(), it->AsVal());
 
 		DBG_ANALYZER_ARGS(conn, "activated %s analyzer as scheduled",
 		                  analyzer_mgr->GetComponentName(*it).c_str());

src/analyzer/Tag.cc

@@ -6,7 +6,7 @@
 const analyzer::Tag analyzer::Tag::Error;
 
 analyzer::Tag::Tag(type_t type, subtype_t subtype)
-	: ::Tag(analyzer_mgr->GetTagEnumType(), type, subtype)
+	: ::Tag(analyzer_mgr->GetTagType(), type, subtype)
 	{
 	}
 
@@ -16,7 +16,20 @@ analyzer::Tag& analyzer::Tag::operator=(const analyzer::Tag& other)
 	return *this;
 	}
 
+const IntrusivePtr<EnumVal>& analyzer::Tag::AsVal() const
+	{
+	return ::Tag::AsVal(analyzer_mgr->GetTagType());
+	}
+
 EnumVal* analyzer::Tag::AsEnumVal() const
 	{
-	return ::Tag::AsEnumVal(analyzer_mgr->GetTagEnumType());
+	return AsVal().get();
 	}
+
+analyzer::Tag::Tag(IntrusivePtr<EnumVal> val)
+	: ::Tag(std::move(val))
+	{ }
+
+analyzer::Tag::Tag(EnumVal* val)
+	: ::Tag({NewRef{}, val})
+	{ }

src/analyzer/Tag.h

@@ -83,6 +83,9 @@ public:
 	 *
 	 * @param etype the script-layer enum type associated with the tag.
 	 */
+	const IntrusivePtr<EnumVal>& AsVal() const;
+
+	[[deprecated("Remove in v4.1.  Use AsVal() instead.")]]
 	EnumVal* AsEnumVal() const;
 
 	static const Tag Error;
@@ -109,7 +112,10 @@ protected:
 	 *
 	 * @param val An enum value of script type \c Analyzer::Tag.
 	 */
-	explicit Tag(EnumVal* val) : ::Tag(val) {}
+	explicit Tag(IntrusivePtr<EnumVal> val);
+
+	[[deprecated("Remove in v4.1.  Construct from IntrusivePtr instead")]]
+	explicit Tag(EnumVal* val);
 };
 
 }

src/analyzer/analyzer.bif

@@ -41,11 +41,12 @@ function Analyzer::__schedule_analyzer%(orig: addr, resp: addr, resp_p: port,
 
 function __name%(atype: Analyzer::Tag%) : string
 	%{
-	return make_intrusive<StringVal>(analyzer_mgr->GetComponentName(atype));
+	const auto& n = analyzer_mgr->GetComponentName(IntrusivePtr{NewRef{}, atype->AsEnumVal()});
+	return make_intrusive<StringVal>(n);
 	%}
 
 function __tag%(name: string%) : Analyzer::Tag
 	%{
 	analyzer::Tag t = analyzer_mgr->GetComponentTag(name->CheckString());
-	return IntrusivePtr{NewRef{}, t.AsEnumVal()};
+	return t.AsVal();
 	%}

src/analyzer/protocol/pia/PIA.cc

@@ -156,12 +156,11 @@ void PIA_UDP::ActivateAnalyzer(analyzer::Tag tag, const Rule* rule)
 		if ( protocol_late_match )
 			{
 			// Queue late match event
-			EnumVal *tval = tag ? tag.AsEnumVal() : GetAnalyzerTag().AsEnumVal();
+			if ( ! tag )
+				tag = GetAnalyzerTag();
 
-			mgr.Enqueue(protocol_late_match,
-			    ConnVal(),
-			    IntrusivePtr{NewRef{}, tval}
-			);
+			const auto& tval = tag.AsVal();
+			mgr.Enqueue(protocol_late_match, ConnVal(), tval);
 			}
 
 		pkt_buffer.state = dpd_late_match_stop ? SKIPPING : MATCHING_ONLY;
@@ -304,12 +303,11 @@ void PIA_TCP::ActivateAnalyzer(analyzer::Tag tag, const Rule* rule)
 		if ( protocol_late_match )
 			{
 			// Queue late match event
-			EnumVal *tval = tag ? tag.AsEnumVal() : GetAnalyzerTag().AsEnumVal();
+			if ( ! tag )
+				tag = GetAnalyzerTag();
 
-			mgr.Enqueue(protocol_late_match,
-			    ConnVal(),
-			    IntrusivePtr{NewRef{}, tval}
-			);
+			const auto& tval = tag.AsVal();
+			mgr.Enqueue(protocol_late_match, ConnVal(), tval);
 			}
 
 		stream_buffer.state = dpd_late_match_stop ? SKIPPING : MATCHING_ONLY;

src/file_analysis/AnalyzerSet.cc

@@ -21,7 +21,7 @@ static void analyzer_del_func(void* v)
 AnalyzerSet::AnalyzerSet(File* arg_file) : file(arg_file)
 	{
 	auto t = make_intrusive<TypeList>();
-	t->Append({NewRef{}, file_mgr->GetTagEnumType()});
+	t->Append(file_mgr->GetTagType());
 	t->Append({NewRef{}, BifType::Record::Files::AnalyzerArgs});
 	analyzer_hash = new CompositeHash(std::move(t));
 	analyzer_map.SetDeleteFunc(analyzer_del_func);
@@ -164,7 +164,7 @@ bool AnalyzerSet::RemoveMod::Perform(AnalyzerSet* set)
 HashKey* AnalyzerSet::GetKey(const file_analysis::Tag& t, RecordVal* args) const
 	{
 	ListVal* lv = new ListVal(TYPE_ANY);
-	lv->Append({NewRef{}, t.AsEnumVal()});
+	lv->Append(t.AsVal());
 	lv->Append({NewRef{}, args});
 	HashKey* key = analyzer_hash->ComputeHash(lv, true);
 	Unref(lv);

src/file_analysis/Manager.cc

@@ -422,13 +422,9 @@ string Manager::GetFileID(const analyzer::Tag& tag, Connection* c, bool is_orig)
 	DBG_LOG(DBG_FILE_ANALYSIS, "Raise get_file_handle() for protocol analyzer %s",
 		analyzer_mgr->GetComponentName(tag).c_str());
 
-	EnumVal* tagval = tag.AsEnumVal();
+	const auto& tagval = tag.AsVal();
 
-	mgr.Enqueue(get_file_handle,
-		IntrusivePtr{NewRef{}, tagval},
-		c->ConnVal(),
-		val_mgr->Bool(is_orig)
-	);
+	mgr.Enqueue(get_file_handle, tagval, c->ConnVal(), val_mgr->Bool(is_orig));
 	mgr.Drain(); // need file handle immediately so we don't have to buffer data
 	return current_file_id;
 	}

src/file_analysis/Tag.cc

@@ -8,7 +8,7 @@ using namespace file_analysis;
 const file_analysis::Tag file_analysis::Tag::Error;
 
 file_analysis::Tag::Tag(type_t type, subtype_t subtype)
-	: ::Tag(file_mgr->GetTagEnumType(), type, subtype)
+	: ::Tag(file_mgr->GetTagType(), type, subtype)
 	{
 	}
 
@@ -18,7 +18,20 @@ file_analysis::Tag& file_analysis::Tag::operator=(const file_analysis::Tag& othe
 	return *this;
 	}
 
+const IntrusivePtr<EnumVal>& file_analysis::Tag::AsVal() const
+	{
+	return ::Tag::AsVal(file_mgr->GetTagType());
+	}
+
 EnumVal* file_analysis::Tag::AsEnumVal() const
 	{
-	return ::Tag::AsEnumVal(file_mgr->GetTagEnumType());
+	return AsVal().get();
 	}
+
+file_analysis::Tag::Tag(IntrusivePtr<EnumVal> val)
+	: ::Tag(std::move(val))
+	{ }
+
+file_analysis::Tag::Tag(EnumVal* val)
+	: ::Tag({NewRef{}, val})
+	{ }

src/file_analysis/Tag.h

@@ -82,6 +82,9 @@ public:
 	 *
 	 * @param etype the script-layer enum type associated with the tag.
 	 */
+	const IntrusivePtr<EnumVal>& AsVal() const;
+
+	[[deprecated("Remove in v4.1.  Use AsVal() instead.")]]
 	EnumVal* AsEnumVal() const;
 
 	static const Tag Error;
@@ -107,7 +110,10 @@ protected:
 	 *
 	 * @param val An enum value of script type \c Files::Tag.
 	 */
-	explicit Tag(EnumVal* val) : ::Tag(val) {}
+	explicit Tag(IntrusivePtr<EnumVal> val);
+
+	[[deprecated("Remove in v4.1.  Construct from IntrusivePtr instead.")]]
+	explicit Tag(EnumVal* val);
 };
 
 }

src/file_analysis/file_analysis.bif

@@ -68,7 +68,8 @@ function Files::__stop%(file_id: string%): bool
 ## :zeek:see:`Files::analyzer_name`.
 function Files::__analyzer_name%(tag: Files::Tag%) : string
 	%{
-	return make_intrusive<StringVal>(file_mgr->GetComponentName(tag));
+	const auto& n = file_mgr->GetComponentName(IntrusivePtr{NewRef{}, tag->AsEnumVal()});
+	return make_intrusive<StringVal>(n);
 	%}
 
 ## :zeek:see:`Files::file_exists`.

src/input/Tag.cc

@@ -6,7 +6,7 @@
 const input::Tag input::Tag::Error;
 
 input::Tag::Tag(type_t type, subtype_t subtype)
-	: ::Tag(input_mgr->GetTagEnumType(), type, subtype)
+	: ::Tag(input_mgr->GetTagType(), type, subtype)
 	{
 	}
 
@@ -16,7 +16,20 @@ input::Tag& input::Tag::operator=(const input::Tag& other)
 	return *this;
 	}
 
+const IntrusivePtr<EnumVal>& input::Tag::AsVal() const
+	{
+	return ::Tag::AsVal(input_mgr->GetTagType());
+	}
+
 EnumVal* input::Tag::AsEnumVal() const
 	{
-	return ::Tag::AsEnumVal(input_mgr->GetTagEnumType());
+	return AsVal().get();
 	}
+
+input::Tag::Tag(IntrusivePtr<EnumVal> val)
+	: ::Tag(std::move(val))
+	{ }
+
+input::Tag::Tag(EnumVal* val)
+	: ::Tag({NewRef{}, val})
+	{ }

src/input/Tag.h

@@ -83,6 +83,9 @@ public:
 	 *
 	 * @param etype the script-layer enum type associated with the tag.
 	 */
+	const IntrusivePtr<EnumVal>& AsVal() const;
+
+	[[deprecated("Remove in v4.1.  Use AsVal() instead.")]]
 	EnumVal* AsEnumVal() const;
 
 	static const Tag Error;
@@ -108,7 +111,10 @@ protected:
 	 *
 	 * @param val An enum value of script type \c Input::Reader.
 	 */
-	explicit Tag(EnumVal* val) : ::Tag(val) {}
+	explicit Tag(IntrusivePtr<EnumVal> val);
+
+	[[deprecated("Remove in v4.1.  Construct from IntrusivePtr isntead.")]]
+	explicit Tag(EnumVal* val);
 };
 
 }

src/logging/Tag.cc

@@ -6,7 +6,7 @@
 const logging::Tag logging::Tag::Error;
 
 logging::Tag::Tag(type_t type, subtype_t subtype)
-	: ::Tag(log_mgr->GetTagEnumType(), type, subtype)
+	: ::Tag(log_mgr->GetTagType(), type, subtype)
 	{
 	}
 
@@ -22,7 +22,20 @@ logging::Tag& logging::Tag::operator=(const logging::Tag&& other) noexcept
 	return *this;
 	}
 
+const IntrusivePtr<EnumVal>& logging::Tag::AsVal() const
+	{
+	return ::Tag::AsVal(log_mgr->GetTagType());
+	}
+
 EnumVal* logging::Tag::AsEnumVal() const
 	{
-	return ::Tag::AsEnumVal(log_mgr->GetTagEnumType());
+	return AsVal().get();
 	}
+
+logging::Tag::Tag(IntrusivePtr<EnumVal> val)
+	: ::Tag(std::move(val))
+	{ }
+
+logging::Tag::Tag(EnumVal* val)
+	: ::Tag({NewRef{}, val})
+	{ }

src/logging/Tag.h

@@ -88,6 +88,9 @@ public:
 	 *
 	 * @param etype the script-layer enum type associated with the tag.
 	 */
+	const IntrusivePtr<EnumVal>& AsVal() const;
+
+	[[deprecated("Remove in v4.1.  Use AsVal() instead.")]]
 	EnumVal* AsEnumVal() const;
 
 	static const Tag Error;
@@ -113,7 +116,10 @@ protected:
 	 *
 	 * @param val An enum value of script type \c Log::Writer.
 	 */
-	explicit Tag(EnumVal* val) : ::Tag(val) {}
+	explicit Tag(IntrusivePtr<EnumVal> val);
+
+	[[deprecated("Remove in v4.1.  Construct from IntrusivePtr instead.")]]
+	explicit Tag(EnumVal* val);
 };
 
 }

src/plugin/ComponentManager.h

@@ -52,6 +52,9 @@ public:
 	/**
 	 * @return The enum type associated with the script-layer "Tag".
 	 */
+	const IntrusivePtr<EnumType>& GetTagType() const;
+
+	[[deprecated("Remove in v4.1.  Use GetTagType() instead.")]]
 	EnumType* GetTagEnumType() const;
 
 	/**
@@ -68,6 +71,9 @@ public:
 	 * @param val A component's enum value.
 	 * @return The canonical component name.
 	 */
+	const std::string& GetComponentName(IntrusivePtr<EnumVal> val) const;
+
+	[[deprecated("Remove in v4.1.  Use IntrusivePtr argument instead.")]]
 	const std::string& GetComponentName(Val* val) const;
 
 	/**
@@ -156,6 +162,12 @@ std::list<C*> ComponentManager<T, C>::GetComponents() const
 	return rval;
 	}
 
+template <class T, class C>
+const IntrusivePtr<EnumType>& ComponentManager<T, C>::GetTagType() const
+	{
+	return tag_enum_type;
+	}
+
 template <class T, class C>
 EnumType* ComponentManager<T, C>::GetTagEnumType() const
 	{
@@ -180,10 +192,16 @@ const std::string& ComponentManager<T, C>::GetComponentName(T tag) const
 	return error;
 	}
 
+template <class T, class C>
+const std::string& ComponentManager<T, C>::GetComponentName(IntrusivePtr<EnumVal> val) const
+	{
+	return GetComponentName(T(std::move(val)));
+	}
+
 template <class T, class C>
 const std::string& ComponentManager<T, C>::GetComponentName(Val* val) const
 	{
-	return GetComponentName(T(val->AsEnumVal()));
+	return GetComponentName(T({NewRef{}, val->AsEnumVal()}));
 	}
 
 template <class T, class C>
@@ -239,12 +257,12 @@ void ComponentManager<T, C>::RegisterComponent(C* component,
 	components_by_name.insert(std::make_pair(cname, component));
 	components_by_tag.insert(std::make_pair(component->Tag(), component));
 	components_by_val.insert(std::make_pair(
-	        component->Tag().AsEnumVal()->InternalInt(), component));
+	        component->Tag().AsVal()->InternalInt(), component));
 
 	// Install an identfier for enum value
 	std::string id = fmt("%s%s", prefix.c_str(), cname.c_str());
 	tag_enum_type->AddName(module, id.c_str(),
-	                       component->Tag().AsEnumVal()->InternalInt(), true,
+	                       component->Tag().AsVal()->InternalInt(), true,
 	                       nullptr);
 	}
 

src/zeekygen/Target.cc

@@ -35,7 +35,7 @@ static void write_plugin_section_heading(FILE* f, const plugin::Plugin* p)
 
 static void write_analyzer_component(FILE* f, const analyzer::Component* c)
 	{
-	EnumType* atag = analyzer_mgr->GetTagEnumType();
+	const auto& atag = analyzer_mgr->GetTagType();
 	string tag = fmt("ANALYZER_%s", c->CanonicalName().c_str());
 
 	if ( atag->Lookup("Analyzer", tag.c_str()) < 0 )
@@ -46,7 +46,7 @@ static void write_analyzer_component(FILE* f, const analyzer::Component* c)
 
 static void write_analyzer_component(FILE* f, const file_analysis::Component* c)
 	{
-	EnumType* atag = file_mgr->GetTagEnumType();
+	const auto& atag = file_mgr->GetTagType();
 	string tag = fmt("ANALYZER_%s", c->CanonicalName().c_str());
 
 	if ( atag->Lookup("Files", tag.c_str()) < 0 )