Enum ErrorKind 

#[non_exhaustive]
pub enum ErrorKind {
    Fail(Error),
    StackOverflow(Error),
    Value(Error),
    Function(Error),
    Scope(Error),
    Parser(Error),
    Freeze(Error),
    Internal(Error),
    Native(Error),
    Other(Error),
}

The different kinds of errors that can be produced by starlark

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Fail(Error)

An explicit fail invocation

StackOverflow(Error)

Starlark call stack overflow.

Value(Error)

An error approximately associated with a value.

Includes unsupported operations, missing attributes, things of that sort.

Function(Error)

Errors relating to the way a function is called (wrong number of args, etc.)

Scope(Error)

Out of scope variables and similar

Parser(Error)

Syntax error.

Freeze(Error)

Freeze errors. Should have no metadata attached

Internal(Error)

Indicates a logic bug in starlark

Native(Error)

Error from user provided native function (but not from native functions provided by starlark crate). When a native function declares anyhow::Result<_> return type, it is automatically converted to this variant.

Other(Error)

Fallback option

For errors produced by starlark which have not yet been assigned their own kind

Implementations

impl ErrorKind

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

The source of the error, akin to [std::error::Error::source]

Trait Implementations

impl Debug for ErrorKind

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

Formats the value using the given formatter.

impl Display for ErrorKind

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

Formats the value using the given formatter.