virtual void visit(ProgramSyntax::FunctionCall &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
virtual void visit(ProgramSyntax::InterfaceBlock &);
virtual void visit(ProgramSyntax::FunctionCall &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
virtual void visit(ProgramSyntax::InterfaceBlock &);