+ virtual void visit(ProgramSyntax::Iteration &);
+ };
+
+ struct PrecisionRemover: BlockModifier
+ {
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Precision &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
+ };
+
+ struct DefaultPrecisionGenerator: BlockModifier
+ {
+ bool toplevel;
+ std::set<std::string> have_default;
+
+ DefaultPrecisionGenerator();
+
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::Precision &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);