static bool is_interpolation_qualifier(const std::string &);
static bool is_precision_qualifier(const std::string &);
static bool is_qualifier(const std::string &);
static bool is_interpolation_qualifier(const std::string &);
static bool is_precision_qualifier(const std::string &);
static bool is_qualifier(const std::string &);
RefPtr<Statement> parse_statement();
RefPtr<Import> parse_import();
RefPtr<Precision> parse_precision();
RefPtr<Statement> parse_statement();
RefPtr<Import> parse_import();
RefPtr<Precision> parse_precision();
template<typename T>
void parse_block(Block &, bool, RefPtr<T> (Parser::*)());
RefPtr<Expression> parse_expression(unsigned = 0);
template<typename T>
void parse_block(Block &, bool, RefPtr<T> (Parser::*)());
RefPtr<Expression> parse_expression(unsigned = 0);
RefPtr<BinaryExpression> parse_binary(const RefPtr<Expression> &, const Operator &);
RefPtr<FunctionCall> parse_function_call(const VariableReference &);
RefPtr<BinaryExpression> parse_binary(const RefPtr<Expression> &, const Operator &);
RefPtr<FunctionCall> parse_function_call(const VariableReference &);
RefPtr<StructDeclaration> parse_struct_declaration();
RefPtr<VariableDeclaration> parse_variable_declaration();
RefPtr<VariableDeclaration> parse_variable_declaration_with_layout();
RefPtr<StructDeclaration> parse_struct_declaration();
RefPtr<VariableDeclaration> parse_variable_declaration();
RefPtr<VariableDeclaration> parse_variable_declaration_with_layout();