Enum LoadError 

pub enum LoadError {
    Io(Error),
    Parse(SpecError),
    Catalog(Vec<CatalogError>),
}

Errors returned by load_cached and related loader entry points.

Three variants track the three failure modes of the load pipeline:

• LoadError::Io — filesystem read or canonicalize failure (missing path, permission denied, etc.).
• LoadError::Parse — the file is present but its contents are not a structurally valid v2 Spec. Wraps SpecError.
• LoadError::Catalog — the spec parses structurally but fails catalog validation (unknown component type, invalid props, etc.). Wraps a Vec<CatalogError>; note that Vec<CatalogError> does NOT implement std::error::Error, so #[from] cannot be used for this variant.

Variants

Io(Error)

Filesystem read failure (including canonicalize failure for missing paths).

Parse(SpecError)

Spec fails structural validation (JSON syntax, duplicate IDs, cycles, etc.).

Catalog(Vec<CatalogError>)

Spec is structurally valid but fails catalog validation.

Trait Implementations

impl Debug for LoadError

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

Formats the value using the given formatter.

impl Display for LoadError

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

Formats the value using the given formatter.

impl Error for LoadError

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<Error> for LoadError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<SpecError> for LoadError

fn from(source: SpecError) -> Self

Converts to this type from the input type.