method.cpp

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/**
 * @file method.cpp
 * @brief Factory implementation for numerical schemes.
 */
 
#include "method.hpp"
 
// Include headers for ALL specific schemes
#include "methods/crank_nicolson.hpp"
#include "methods/dufort_frankel.hpp"
#include "methods/laasonen.hpp"
#include "methods/richardson.hpp"
#include <memory>
#include <stdexcept>
 
// =============================================================================
// FACTORY FUNCTION
// =============================================================================
 
/**
 * @brief Build a concrete numerical method from the requested scheme kind.
 *
 * @param scheme Identifier of the requested scheme.
 * @return std::unique_ptr<Method> Owning pointer to the created scheme.
 * @throws std::invalid_argument if the scheme is not supported.
 */
std::unique_ptr<Method> make_method(SchemeKind scheme)
{
    switch (scheme)
    {
        case SchemeKind::Laasonen:
            return std::make_unique<Laasonen>();
 
        case SchemeKind::DuFortFrankel:
            return std::make_unique<DuFortFrankel>();
 
        case SchemeKind::Richardson:
            return std::make_unique<Richardson>();
 
        case SchemeKind::CrankNicolson:
            return std::make_unique<CrankNicolson>();
 
        default:
            throw std::invalid_argument("make_method: unsupported or unknown scheme");
    }
}