Enum Expression

pub enum Expression<'a> {
    Variable {
        key: Key,
        location: TextLocation,
    },
    Terminal {
        regex: Symbol,
        options: TerminalOptions<'a>,
        location: TextLocation,
    },
    Passive {
        expression: &'a Expression<'a>,
        location: TextLocation,
    },
    Repetition {
        expression: &'a Expression<'a>,
        location: TextLocation,
    },
    Optional {
        expression: &'a Expression<'a>,
        location: TextLocation,
    },
    Alternation {
        expressions: &'a [Expression<'a>],
        location: TextLocation,
    },
    Concatenation {
        expressions: &'a [Expression<'a>],
        location: TextLocation,
    },
}

Variants

Variable

Fields

key: Key

location: TextLocation

Terminal

Fields

regex: Symbol

options: TerminalOptions<'a>

location: TextLocation

Passive

Fields

expression: &'a Expression<'a>

location: TextLocation

Repetition

Fields

expression: &'a Expression<'a>

location: TextLocation

Optional

Fields

expression: &'a Expression<'a>

location: TextLocation

Alternation

Fields

expressions: &'a [Expression<'a>]

location: TextLocation

Concatenation

Fields

expressions: &'a [Expression<'a>]

location: TextLocation

Implementations

impl<'a> Expression<'a>

pub fn with_compiler( &'a self, compiler: &'a Compiler, ) -> ExpressionWithCompiler<'a>

Trait Implementations

impl<'a> Clone for Expression<'a>

fn clone(&self) -> Expression<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Expression<'a>

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

Formats the value using the given formatter.

impl Hash for Expression<'_>

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 Expression<'_>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Expression<'_>