Summary:

executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.

Differential Revision: D97662639

Summary:
Pull Request resolved: pytorch#18554

executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.

Differential Revision: D97662639

Summary:

executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.

Differential Revision: D97662639

Summary:
Pull Request resolved: pytorch#18554

executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.

Differential Revision: D97662639

… (pytorch#18554)

Summary:
executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.


Reviewed By: JacobSzwejbka

Differential Revision: D97662639

Pulled By: alexey-sidnev

… (pytorch#18554)

Summary:
executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.

Pull Request resolved: pytorch#18554

Reviewed By: JacobSzwejbka

Differential Revision: D97662639

Pulled By: alexey-sidnev

… (pytorch#18554)

Summary:
executorch::runtime::to_string(Error) returns const char* via a switch statement with no default case. For unrecognized error codes, the function falls off the end without returning (undefined behavior), which in practice returns nullptr.

The fix:
1. Adds a fallback return "Error::Unknown" after the switch in to_string() (without a default: case, preserving -Wswitch coverage for missing enum values).
2. Adds tests for to_string() covering all 21 enum values and the unknown error code path.


Reviewed By: JacobSzwejbka

Differential Revision: D97662639

Pulled By: alexey-sidnev

… (pytorch#18554)

Differential Revision: D97662639

Pull Request resolved: pytorch#18554