Enum charcoal::TryRemoveBranchError

pub enum TryRemoveBranchError {
    WasRootNode,
    WasLeafNode,
    HadBranchChild(u32),
    CannotRemoveIndividualChildren,
}

The error type returned by methods on trees which remove branch nodes.

Variants

WasRootNode

The node was the root node, which cannot be removed.

WasLeafNode

The node a leaf node and thus should be removed with try_remove_leaf_with or a similar method.

HadBranchChild(u32)

One of the node’s children was a branch node, which would require recursion to remove. Contains the index of the offending node; if there were multiple, the smallest index is specified.

CannotRemoveIndividualChildren

The tree does not support removing individual children or such support was manually disabled.

Trait Implementations

impl Clone for TryRemoveBranchError

fn clone(&self) -> TryRemoveBranchError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for TryRemoveBranchError

impl Debug for TryRemoveBranchError

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

Formats the value using the given formatter.

impl Display for TryRemoveBranchError

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

Formats the value using the given formatter.

impl Eq for TryRemoveBranchError

impl Error for TryRemoveBranchError

This is supported on crate feature std only.

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

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

pub fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl Hash for TryRemoveBranchError

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl PartialEq<TryRemoveBranchError> for TryRemoveBranchError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl StructuralEq for TryRemoveBranchError

impl StructuralPartialEq for TryRemoveBranchError