Enum ContractError 

pub enum ContractError {
    NoRegions,
    TooManyRegions(usize),
    BadRange {
        index: usize,
        start: u32,
        end: u32,
    },
    BadThreshold(u16),
    LabelTooLong(usize),
}

Why a contract was rejected at construction.

Variants

NoRegions

A contract with nothing required requires nothing.

TooManyRegions(usize)

More regions than the event bitmask can name.

BadRange

Lines are 1-based and ranges are inclusive; start must be ≥ 1 and ≤ end.

Fields

index: usize

Which region (0-based, declaration order).

start: u32

Declared start line.

end: u32

Declared end line.

BadThreshold(u16)

The threshold is a permille of declared regions in 1..=1000.

LabelTooLong(usize)

Labels are short human names, not documents.

Trait Implementations

impl Debug for ContractError

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

Formats the value using the given formatter.

impl Display for ContractError

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

Formats the value using the given formatter.

impl Eq for ContractError

impl Error for ContractError

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 PartialEq for ContractError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ContractError