Struct CacheFfiError 

pub struct CacheFfiError(String);

Owned error raised through [ocaml::Error::Error] on the cached-index FFI paths.

ocaml-rs raises that variant by calling caml_failwith on the boxed error’s Debug rendering, so Debug here must produce the plain message — boxing the String directly would Debug-quote it and OCaml would see Failure "\"caml_...: ...\"". Unlike ocaml::Error::Message (which takes a &'static str and previously forced a Box::leak per call), this owns its message and is freed when the error drops.

Tuple Fields

0: String

Implementations

impl CacheFfiError

pub fn wrap(msg: String) -> Error

Wraps msg into the ocaml::Error the FFI wrappers return.

Trait Implementations

impl Debug for CacheFfiError

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

Formats the value using the given formatter.

impl Display for CacheFfiError

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

Formats the value using the given formatter.

impl Error for CacheFfiError

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.