Documentation
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Overview ¶
Package apperr defines AST-Digger's custom error types and the exit code taxonomy used to translate errors into process exit codes.
It corresponds to ast_digger/error.py in the Python implementation, with the addition of an exit code mapping (design_GOLANG.md, "エラーハンドリング" section) since Go does not have a shared exception hierarchy that a CLI entry point can inspect the way Python's does.
Index ¶
Constants ¶
const ( // ExitOK indicates successful completion. ExitOK = 0 // ExitInternalError indicates an unclassified internal error. ExitInternalError = 1 // ExitCLIParamError indicates invalid CLI parameters/flags. ExitCLIParamError = 2 // ExitFileAccessError indicates a file access error (see FileAccessError). ExitFileAccessError = 3 // ExitSymbolNotFoundError indicates a symbol lookup failure (see // SymbolNotFoundError). ExitSymbolNotFoundError = 4 // ExitDatabaseCorruptedError indicates a database corruption/schema // mismatch that persisted after automatic recovery (see // DatabaseCorruptedError). ExitDatabaseCorruptedError = 5 )
Exit codes for the CLI, per the exit code taxonomy defined in design_GOLANG.md ("終了コードのタクソノミー").
Variables ¶
This section is empty.
Functions ¶
func ExitCode ¶
ExitCode maps err to the process exit code defined by the taxonomy in design_GOLANG.md. A nil err maps to ExitOK. Errors that are not one of the custom types defined in this package map to ExitInternalError; CLI parameter validation errors (ExitCLIParamError) are expected to be detected and reported directly by the CLI layer (cobra flag validation) rather than via a value returned from this package.
Types ¶
type DatabaseCorruptedError ¶
type DatabaseCorruptedError struct {
// Path is the database file path, if known.
Path string
// Err is the underlying error, if any.
Err error
}
DatabaseCorruptedError indicates that the SQLite cache database was corrupted or had a mismatched schema. It corresponds to Python's ast_digger.error.DatabaseCorruptedError.
func (*DatabaseCorruptedError) Error ¶
func (e *DatabaseCorruptedError) Error() string
func (*DatabaseCorruptedError) Unwrap ¶
func (e *DatabaseCorruptedError) Unwrap() error
Unwrap allows errors.Is / errors.As to see through to the underlying error.
type FileAccessError ¶
type FileAccessError struct {
// Path is the file path that could not be accessed, if known.
Path string
// Err is the underlying error, if any (e.g. from the os package).
Err error
}
FileAccessError indicates that a target file could not be accessed, read, or was of an unsupported type. It corresponds to Python's ast_digger.error.FileAccessError.
func (*FileAccessError) Error ¶
func (e *FileAccessError) Error() string
func (*FileAccessError) Unwrap ¶
func (e *FileAccessError) Unwrap() error
Unwrap allows errors.Is / errors.As to see through to the underlying error.
type SymbolNotFoundError ¶
type SymbolNotFoundError struct {
// FilePath is the file that was searched.
FilePath string
// SymbolPath is the symbol path that could not be resolved.
SymbolPath string
// Suggestions holds candidate symbol names (up to 5) that exist in the
// file, for inclusion in the error message (F-10, task 14).
Suggestions []string
}
SymbolNotFoundError indicates that a requested symbol path could not be found within a file. It corresponds to Python's ast_digger.error.SymbolNotFoundError.
func (*SymbolNotFoundError) Error ¶
func (e *SymbolNotFoundError) Error() string
Source Files