Struct wax::Negation

pub struct Negation { /* private fields */ }

Negated Globs and their associated FilterTargets.

Determines an appropriate FilterTarget for a WalkEntry based on Globs used as a filter. This can be used with FilterTree to effeciently filter WalkEntrys without reading directory trees from the file system when not necessary.

Implementations

impl Negation

pub fn try_from_patterns<'t, P>(
    patterns: impl IntoIterator<Item = P>
) -> Result<Self, BuildError<'t>> where
    BuildError<'t>: From<P::Error>,
    P: TryInto<Glob<'t>>, 

Constructs a Negation from an IntoIterator with items that can be converted into Globs.

Errors

Returns an error if any of the items cannot be successfully converted into a Glob. If the items are Globs, then this function is infallible.

pub fn target(&self, entry: &WalkEntry<'_>) -> Option<FilterTarget>

Gets the appropriate FilterTarget for the given WalkEntry.

This function can be used with IteratorExt::filter_tree to effeciently filter WalkEntrys without reading directory trees from the file system when not necessary.

Returns FilterTarget::Tree if the WalkEntry matches a terminal glob expression, such as secret/**.

Trait Implementations

impl Clone for Negation

fn clone(&self) -> Negation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Negation

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

Formats the value using the given formatter.