src/tint/lang/wgsl/sem/materialize.h

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#ifndef SRC_TINT_LANG_WGSL_SEM_MATERIALIZE_H_
#define SRC_TINT_LANG_WGSL_SEM_MATERIALIZE_H_

#include "src/tint/lang/wgsl/sem/value_expression.h"

namespace tint::sem {

/// Materialize is a semantic expression which represents the materialization of a value of an
/// abstract numeric type to a value of a concrete type.
/// Abstract numeric materialization is implicit in WGSL, so the Materialize semantic node shares
/// the same AST node as the inner semantic node.
/// Abstract numerics types may only be used by compile-time expressions, so a Materialize semantic
/// node must have a valid Constant value.
class Materialize final : public Castable<Materialize, ValueExpression> {
  public:
    /// Constructor
    /// @param expr the inner expression, being materialized
    /// @param statement the statement that owns this expression
    /// @param type concrete type to materialize to
    /// @param constant the constant value of this expression or nullptr
    Materialize(const ValueExpression* expr,
                const Statement* statement,
                const core::type::Type* type,
                const core::constant::Value* constant);

    /// Destructor
    ~Materialize() override;

    /// @return the expression being materialized
    const ValueExpression* Expr() const { return expr_; }

  private:
    ValueExpression const* const expr_;
};

}  // namespace tint::sem

#endif  // SRC_TINT_LANG_WGSL_SEM_MATERIALIZE_H_