Enum LibraryError 

pub enum LibraryError {
    RustPanic {
        message: String,
        source_location: String,
        backtrace: Expr,
    },
    Loader {
        message: String,
        expected: String,
        got: Expr,
    },
    WstpError {
        code: i32,
        message: String,
    },
    WstpErrorMessage {
        message: String,
    },
}

An error raised at the LibraryLink boundary.

#[derive(Failure)] renders each variant to its Failure["VariantName", <|CamelCase fields|>] expression (e.g. RustPanic { message, .. } → Failure["RustPanic", <|"Message" -> …, "SourceLocation" -> …, "Backtrace" -> …|>]).

Variants

RustPanic

A Rust panic caught while running an exported function. The backtrace is a renderable Expr (a clickable Column of frames when the panic-failure-backtraces feature is on and the backtrace env var is set, else Missing[…]).

Fields

message: String

The panic message (substituted into the MessageTemplate).

source_location: String

file:line where the panic originated.

backtrace: Expr

The backtrace as a renderable expression.

Loader

The generated generate_loader! entry point was called incorrectly (wrong head / argument count / argument type).

Fields

message: String

What went wrong.

expected: String

What the loader expected (e.g. "List", "String", "1 argument").

got: Expr

What it got — an arbitrary Expr.

WstpError

A WSTP error with an error code.

Fields

code: i32

The WSTP error code.

message: String

The WSTP error message.

WstpErrorMessage

A WSTP error without an error code.

Fields

message: String

The WSTP error message.

Trait Implementations

impl Clone for LibraryError

fn clone(&self) -> LibraryError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LibraryError

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

Formats the value using the given formatter.

impl From<&LibraryError> for Expr

fn from(__value: &LibraryError) -> Expr

Converts to this type from the input type.

impl From<Error> for LibraryError

Available on crate feature wstp only.

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<LibraryError> for Expr

fn from(__value: LibraryError) -> Expr

Converts to this type from the input type.