X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fprogramcompiler.h;h=3b63c5e906bd257bdd568a6d89527e5fd2e01fb1;hp=0ea485a9765d2faa7cafca338b622c5955b936da;hb=b3e71de19f35773c22391151ebb02062d6894bc9;hpb=a36992487d018d8801ead6980b362b00a2f5f5c5

diff --git a/source/programcompiler.h b/source/programcompiler.h
index 0ea485a9..3b63c5e9 100644
--- a/source/programcompiler.h
+++ b/source/programcompiler.h
@@ -12,8 +12,17 @@ class Program;
 
 class ProgramCompiler
 {
-public:
-	struct Formatter: ProgramSyntax::NodeVisitor
+private:
+	struct Visitor: ProgramSyntax::TraversingVisitor
+	{
+		ProgramSyntax::Stage *stage;
+
+		Visitor();
+
+		virtual void apply(ProgramSyntax::Stage &);
+	};
+
+	struct Formatter: Visitor
 	{
 		std::string formatted;
 		unsigned indent;
@@ -41,8 +50,7 @@ public:
 		virtual void visit(ProgramSyntax::Return &);
 	};
 
-private:
-	struct VariableResolver: ProgramSyntax::TraversingVisitor
+	struct VariableResolver: Visitor
 	{
 		std::vector<ProgramSyntax::Block *> blocks;
 		ProgramSyntax::StructDeclaration *type;
@@ -59,16 +67,51 @@ private:
 		virtual void visit(ProgramSyntax::InterfaceBlock &);
 	};
 
-	struct UnusedVariableLocator: ProgramSyntax::TraversingVisitor
+	struct InterfaceGenerator: Visitor
 	{
-		std::set<ProgramSyntax::VariableDeclaration *> unused_variables;
+		std::string in_prefix;
+		std::string out_prefix;
+		unsigned scope_level;
+		std::map<std::string, ProgramSyntax::VariableDeclaration *> iface_declarations;
+		bool remove_node;
+		std::list<ProgramSyntax::Node *> insert_nodes;
+
+		InterfaceGenerator();
+
+		static std::string get_out_prefix(ProgramSyntax::StageType);
+		virtual void apply(ProgramSyntax::Stage &);
+		virtual void visit(ProgramSyntax::Block &);
+		std::string change_prefix(const std::string &, const std::string &) const;
+		bool generate_interface(ProgramSyntax::VariableDeclaration &, const std::string &, const std::string &);
+		void insert_assignment(const std::string &, ProgramSyntax::Expression *);
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+		virtual void visit(ProgramSyntax::Passthrough &);
+	};
+
+	struct VariableRenamer: Visitor
+	{
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+	};
+
+	struct UnusedVariableLocator: Visitor
+	{
+		std::set<ProgramSyntax::Node *> unused_nodes;
+		std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> assignments;
+		bool assignment;
+		ProgramSyntax::VariableDeclaration *assignment_target;
+
+		UnusedVariableLocator();
 
 		virtual void visit(ProgramSyntax::VariableReference &);
 		virtual void visit(ProgramSyntax::MemberAccess &);
+		virtual void visit(ProgramSyntax::BinaryExpression &);
+		virtual void visit(ProgramSyntax::ExpressionStatement &);
 		virtual void visit(ProgramSyntax::VariableDeclaration &);
 	};
 
-	struct NodeRemover: ProgramSyntax::TraversingVisitor
+	struct NodeRemover: Visitor
 	{
 		std::set<ProgramSyntax::Node *> to_remove;
 		unsigned n_removed;
@@ -79,6 +122,7 @@ private:
 
 		virtual void visit(ProgramSyntax::Block &);
 		virtual void visit(ProgramSyntax::StructDeclaration &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
 		virtual void visit(ProgramSyntax::InterfaceBlock &);
 	};
 
@@ -94,9 +138,12 @@ public:
 
 private:
 	void process();
-	void process(ProgramSyntax::Context &);
+	void generate(ProgramSyntax::Stage &);
+	void optimize(ProgramSyntax::Stage &);
 	static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
-	std::string format_context(ProgramSyntax::Context &);
+	template<typename T>
+	static void apply(ProgramSyntax::Stage &);
+	std::string create_source(ProgramSyntax::Stage &);
 };
 
 } // namespace GL