Struct wirefilter::FilterAst

pub struct FilterAst<'s> { /* fields omitted */ }

A parsed filter AST.

It's attached to its corresponding Scheme because all parsed fields are represented as indices and are valid only when ExecutionContext is created from the same scheme.

Methods

impl<'s> FilterAst<'s>

pub fn uses(&self, field_name: &str) -> Result<bool, UnknownFieldError>

Recursively checks whether a FilterAst uses a given field name.

This is useful to lazily initialise expensive fields only if necessary.

pub fn compile(self) -> Filter<'s>

Compiles a FilterAst into a Filter.

Trait Implementations

impl<'s> PartialEq<FilterAst<'s>> for FilterAst<'s>

fn eq(&self, other: &FilterAst<'s>) -> bool

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

fn ne(&self, other: &FilterAst<'s>) -> bool

This method tests for !=.

impl<'s> Clone for FilterAst<'s>

fn clone(&self) -> FilterAst<'s>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'s> Eq for FilterAst<'s>

impl<'s> Debug for FilterAst<'s>

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

Formats the value using the given formatter.

impl<'s> Serialize for FilterAst<'s>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.