Struct ErrorDescriptor 

pub struct ErrorDescriptor {
    pub name: &'static str,
    pub code: u32,
    pub invariant: &'static str,
    pub doc: &'static str,
}

Descriptor for one variant of a #[hopper::error] enum.

Carried in the program manifest so off-chain SDKs can map numeric error codes back to names and. via invariant. to the safety check that produced them.

Design notes

Hopper errors can carry the invariant name a variant corresponds to, so a client that sees error 0x1001 can surface “Invariant balance_nonzero failed” without needing to keep a separate lookup table in sync with the on-chain code.

Fields

name: &'static str

Variant name (exactly as declared).

code: u32

Stable numeric code emitted on failure.

invariant: &'static str

Invariant this error corresponds to, or empty string if none.

doc: &'static str

Short documentation string (often copied from variant doc comments).

Trait Implementations

impl Clone for ErrorDescriptor

fn clone(&self) -> ErrorDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorDescriptor

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

Formats the value using the given formatter.

impl PartialEq for ErrorDescriptor

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ErrorDescriptor

impl Eq for ErrorDescriptor

impl StructuralPartialEq for ErrorDescriptor