virtual void visit(Block &);
virtual void visit(UnaryExpression &);
virtual void visit(BinaryExpression &);
+ virtual void visit(Assignment &a) { visit(static_cast<BinaryExpression &>(a)); }
virtual void visit(MemberAccess &);
virtual void visit(FunctionCall &);
virtual void visit(ExpressionStatement &);
virtual void visit(Iteration &);
};
+/** Removes types which are not used anywhere. */
+class UnusedTypeRemover: private TraversingVisitor
+{
+private:
+ std::set<Node *> unused_nodes;
+
+public:
+ bool apply(Stage &);
+
+private:
+ virtual void visit(Literal &);
+ virtual void visit(UnaryExpression &);
+ virtual void visit(BinaryExpression &);
+ virtual void visit(FunctionCall &);
+ virtual void visit(BasicTypeDeclaration &);
+ virtual void visit(ImageTypeDeclaration &);
+ virtual void visit(StructDeclaration &);
+ virtual void visit(VariableDeclaration &);
+ virtual void visit(FunctionDeclaration &);
+};
+
/** Removes variable declarations with no references to them. Assignment
statements where the result is not used are also removed. */
class UnusedVariableRemover: private TraversingVisitor