X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogramcompiler.h;h=829f75358cdd08695d16730184f109cc03e5c0d6;hb=02c1541c20adf36ea09825dc7bc745f8487c4bc8;hp=3b63c5e906bd257bdd568a6d89527e5fd2e01fb1;hpb=b3e71de19f35773c22391151ebb02062d6894bc9;p=libs%2Fgl.git

diff --git a/source/programcompiler.h b/source/programcompiler.h
index 3b63c5e9..829f7535 100644
--- a/source/programcompiler.h
+++ b/source/programcompiler.h
@@ -98,9 +98,14 @@ private:
 	struct UnusedVariableLocator: Visitor
 	{
 		std::set<ProgramSyntax::Node *> unused_nodes;
+		std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> aggregates;
+		ProgramSyntax::Node *aggregate;
 		std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> assignments;
 		bool assignment;
+		bool record_target;
 		ProgramSyntax::VariableDeclaration *assignment_target;
+		bool indeterminate_target;
+		bool self_referencing;
 
 		UnusedVariableLocator();
 
@@ -108,22 +113,17 @@ private:
 		virtual void visit(ProgramSyntax::MemberAccess &);
 		virtual void visit(ProgramSyntax::BinaryExpression &);
 		virtual void visit(ProgramSyntax::ExpressionStatement &);
+		virtual void visit(ProgramSyntax::StructDeclaration &);
 		virtual void visit(ProgramSyntax::VariableDeclaration &);
+		virtual void visit(ProgramSyntax::InterfaceBlock &);
 	};
 
 	struct NodeRemover: Visitor
 	{
 		std::set<ProgramSyntax::Node *> to_remove;
-		unsigned n_removed;
-		bool immutable_block;
-		bool remove_block;
-
-		NodeRemover();
 
 		virtual void visit(ProgramSyntax::Block &);
-		virtual void visit(ProgramSyntax::StructDeclaration &);
 		virtual void visit(ProgramSyntax::VariableDeclaration &);
-		virtual void visit(ProgramSyntax::InterfaceBlock &);
 	};
 
 	ProgramParser parser;
@@ -139,7 +139,7 @@ public:
 private:
 	void process();
 	void generate(ProgramSyntax::Stage &);
-	void optimize(ProgramSyntax::Stage &);
+	bool optimize(ProgramSyntax::Stage &);
 	static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
 	template<typename T>
 	static void apply(ProgramSyntax::Stage &);