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Make Result able to return an error string

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apio 2022-11-30 17:10:43 +01:00
parent fc0779a2f9
commit 1d51935d43
1 changed files with 14 additions and 1 deletions
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15
luna/Result.h
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@ -2,6 +2,7 @@
#include <Check.h> #include <Check.h>
#include <Move.h> #include <Move.h>
#include <PlacementNew.h> #include <PlacementNew.h>
#include <SystemError.h>
#include <Types.h> #include <Types.h>
struct Error struct Error
@ -92,6 +93,12 @@ template <typename T> class Result
return {m_error}; return {m_error};
} }
const char* error_string()
{
check(has_error());
return ::error_string(m_error);
}
T value() T value()
{ {
check(has_value()); check(has_value());
@ -224,6 +231,12 @@ template <> class Result<void>
return {m_error}; return {m_error};
} }
const char* error_string()
{
check(has_error());
return ::error_string(m_error);
}
void value() void value()
{ {
check(has_value()); check(has_value());
@ -242,7 +255,7 @@ template <> class Result<void>
}; };
// clang-format off // clang-format off
#define err Error{0} #define err(x) Error{x}
// clang-format on // clang-format on
#define TRY(expr) \ #define TRY(expr) \