Enum ExpandSavePathError 

pub enum ExpandSavePathError {
    UnknownToken {
        token: String,
    },
    UnterminatedToken {
        offset: usize,
    },
    EmptyToken {
        offset: usize,
    },
    CategoryNotFound {
        name: String,
    },
    Category(CategoryError),
}

Errors from save-path expansion.

Variants

UnknownToken

The template referenced a token outside the locked five-token grammar. The offending token name (without the {}) is returned verbatim so callers can surface it in error UI.

Fields

token: String

Token name as it appeared in the template (without braces).

UnterminatedToken

A { was opened but never closed. Returned with the byte offset of the unclosed brace inside the template’s string representation.

Fields

offset: usize

Byte offset of the offending { inside the template.

EmptyToken

{} (empty braces) — the template has a brace pair with no token name between them. Treated as a separate failure mode from UnknownToken so callers can render a more specific message.

Fields

offset: usize

Byte offset of the offending {} inside the template.

CategoryNotFound

The template referred to a category name that is not present in the supplied CategoryRegistry.

Fields

name: String

The name as it appeared at the call site.

Category(CategoryError)

Underlying CategoryError surfaced for completeness — the expander itself never produces these, but expand_save_path_for_category forwards them when a registry operation fails.

Trait Implementations

impl Debug for ExpandSavePathError

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

Formats the value using the given formatter.

impl Display for ExpandSavePathError

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

Formats the value using the given formatter.

impl Error for ExpandSavePathError

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

Returns the lower-level source of this error, if any.

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<CategoryError> for ExpandSavePathError

fn from(source: CategoryError) -> Self

Converts to this type from the input type.