fail_allocator.h

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#pragma once
 
#include "di/assert/assert_bool.h"
#include "di/container/allocator/allocation_result.h"
#include "di/platform/prelude.h"
#include "di/vocab/error/status_code_forward_declaration.h"
#include "di/vocab/expected/expected_forward_declaration.h"
#include "di/vocab/expected/unexpected.h"
 
namespace di::container {
struct FailAllocator {
    constexpr static auto allocate(usize, usize) -> vocab::Expected<AllocationResult<>, vocab::GenericCode> {
        return vocab::Unexpected(platform::BasicError::NotEnoughMemory);
    }
 
    static void deallocate(void*, usize, usize) { DI_ASSERT(false); }
};
 
constexpr inline auto fail_allocator = FailAllocator {};
}
 
namespace di {
using container::fail_allocator;
using container::FailAllocator;
}