Struct wax::WalkNegation

pub struct WalkNegation { /* private fields */ }

Available on crate feature walk only.

Negated combinator that efficiently filters WalkEntrys.

Determines an appropriate FilterTarget for a WalkEntry based on the exhaustiveness of its component Patterns. This can be used with FilterTree to efficiently filter WalkEntrys without reading directory trees from the file system when not necessary.

Implementations

impl WalkNegation

pub fn any<'t, I>(patterns: I) -> Result<Self, BuildError>where I: IntoIterator, I::Item: Combine<'t>,

Combines glob expressions into a WalkNegation.

This function accepts an IntoIterator with items that implement Combine, such as Glob and &str.

Errors

Returns an error if any of the inputs fail to build. If the inputs are a compiled Pattern types such as Glob, then this only occurs if the compiled program is too large.

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

Gets the appropriate FilterTarget for the given WalkEntry.

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

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

Trait Implementations

impl Clone for WalkNegation

fn clone(&self) -> WalkNegation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WalkNegation

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

Formats the value using the given formatter.