ast.inl

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//==================================================================================================
/// \file
/// This header-file is part of module \alib_expressions of the \aliblong.
///
/// \emoji :copyright: 2013-2025 A-Worx GmbH, Germany.
/// Published under \ref mainpage_license "Boost Software License".
//==================================================================================================
ALIB_EXPORT namespace alib {  namespace expressions { namespace detail {
 
/// Base class for nodes of abstract syntax trees of module \alib_expressions.
/// Note that AST objects (and their data) are allocated in a \alib{MonoAllocator} and
/// hence have empty destructors.
struct ASTBase
{
    /// The type of node.
    enum class Types
    {
        Literal     , ///< A literal.
        Identifier  , ///< An identifier.
        Function    , ///< A function.
        UnaryOp     , ///< A unary operator.
        BinaryOp    , ///< A binary operator.
        TernaryOp   , ///< A ternary operator.
    };
 
    /// Type of derived this AST node
    Types   NodeType;
 
    /// Constructor
    /// @param type      The node type.
    ASTBase( Types type )
    : NodeType(type)
    {}
};
 
}}} // namespace [alib::expressions::detail]