Enum CaptureBound 

pub enum CaptureBound {
    Depth,
    Level,
    Tree,
    Work,
}

Which declared magnitude one capture ran past.

Every row refuses before any partial tree exists: a truncated capture is a different declaration, and capturing one would put everything downstream to work on material nobody wrote.

Variants

Depth

The declared input nests deeper than the declared magnitude.

Level

One nesting level carries more token trees than the declared magnitude.

Tree

The whole tree carries more tokens than the declared magnitude.

Work

The walk spent the declared capture-work budget.

Implementations

impl CaptureBound

pub const ALL: &'static [Self]

Every bound a capture can run past, in declaration order.

pub const fn name(self) -> &'static str

The stable name of the magnitude this row is about.

Trait Implementations

impl Clone for CaptureBound

fn clone(&self) -> CaptureBound

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CaptureBound

impl Debug for CaptureBound

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

Formats the value using the given formatter.

impl Display for CaptureBound

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

Formats the value using the given formatter.

impl Eq for CaptureBound

impl Error for CaptureBound

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<CaptureBound> for CaptureError

fn from(bound: CaptureBound) -> Self

Converts to this type from the input type.

impl Hash for CaptureBound

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CaptureBound

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CaptureBound