Enum CnResult 

#[non_exhaustive]
pub enum CnResult {
    Success = 0,
    AssetInvalidType = 1,
    InvalidState = 2,
    InvalidArgument = 3,
    FileIo = 4,
    NoStateRoot = 5,
}

The engine’s flat result code, returned across the API and FFI seams.

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.

Success = 0

The call succeeded.

AssetInvalidType = 1

The asset type name is not in the registry.

InvalidState = 2

Generic

InvalidArgument = 3

An argument was outside its accepted range.

FileIo = 4

A file could not be read or written.

NoStateRoot = 5

Project state was read by a caller that was handed no state tree. See concinnity_host::store::paths::StateTree.

Trait Implementations

impl Clone for CnResult

fn clone(&self) -> CnResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CnResult

impl Debug for CnResult

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

Formats the value using the given formatter.

impl Display for CnResult

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

Formats the value using the given formatter.

impl Eq for CnResult

impl Error for CnResult

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 CnResult

fn from(_: Error) -> Self

Converts to this type from the input type.

impl From<FrameError> for CnResult

fn from(_: FrameError) -> Self

Converts to this type from the input type.

impl PartialEq for CnResult

fn eq(&self, other: &CnResult) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CnResult