Enum ConfigTreeError 

pub enum ConfigTreeError {
    CurrentDir {
        source: Error,
    },
    Load {
        path: PathBuf,
        source: BoxError,
    },
    EmptyIncludePath {
        path: PathBuf,
        index: usize,
    },
    IncludeCycle {
        chain: Vec<PathBuf>,
    },
}

Errors produced while traversing a recursive config tree.

Variants

CurrentDir

The current directory could not be resolved while absolutizing a path.

Fields

source: Error

Underlying IO error returned while reading the current directory.

Load

A source loader failed for the given path.

Fields

path: PathBuf

Path that failed to load.

source: BoxError

Underlying loader error.

EmptyIncludePath

An include list contained an empty path.

Fields

path: PathBuf

Path whose include list contained the empty entry.

index: usize

Zero-based index of the empty include entry.

IncludeCycle

Recursive includes formed a cycle.

Fields

chain: Vec<PathBuf>

Normalized path chain that forms the include cycle.

Trait Implementations

impl Debug for ConfigTreeError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ConfigTreeError

Formats tree traversal errors for CLI and library callers.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats one tree traversal error for display.

Arguments

• self: Error value to format.
• f: Formatter receiving the rendered message.

Returns

Returns the formatter result.

Examples

let _ = ();

impl Error for ConfigTreeError

Exposes underlying IO or loader causes for tree traversal failures.

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the underlying source error when one exists.

Arguments

• self: Error value whose source should be exposed.

Returns

Returns the wrapped source error for IO or loader failures.

Examples

let _ = ();

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<ConfigTreeError> for ConfigError

Converts tree traversal failures into high-level config failures.

fn from(err: ConfigTreeError) -> Self

Wraps a tree traversal error.

Arguments

• err: Tree traversal error to wrap.

Returns

Returns the corresponding high-level config error.

Examples

let _ = ();