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#ifndef SRC_TINT_LANG_MSL_VALIDATE_VALIDATE_H_
#define SRC_TINT_LANG_MSL_VALIDATE_VALIDATE_H_

#include <string>

#include "src/tint/utils/result.h"

namespace tint::msl::validate {

/// The version of MSL to validate against.
/// Note: these must be kept in ascending order
enum class MslVersion {
    kMsl_2_3,
    kMsl_2_4,
    kMsl_3_2,
};

/// MslVersion less-than operator
inline bool operator<(MslVersion a, MslVersion b) {
    return static_cast<int>(a) < static_cast<int>(b);
}

/// Validate attempts to compile the shader with the Metal Shader Compiler,
/// verifying that the shader compiles successfully.
/// @param xcrun_path path to xcrun
/// @param source the generated MSL source
/// @param version the version of MSL to validate against
/// @return the result of the compile
Result<SuccessType> Validate(const std::string& xcrun_path,
                             const std::string& source,
                             MslVersion version);

#if TINT_BUILD_IS_MAC
/// ValidateUsingMetal attempts to compile the shader with the runtime Metal Shader Compiler
/// API, verifying that the shader compiles successfully.
/// @param source the generated MSL source
/// @param version the version of MSL to validate against
/// @return the result of the compile
Result<SuccessType> ValidateUsingMetal(const std::string& source, MslVersion version);
#endif  // TINT_BUILD_IS_MAC

}  // namespace tint::msl::validate

#endif  // SRC_TINT_LANG_MSL_VALIDATE_VALIDATE_H_
