Struct OptionalAttr

pub struct OptionalAttr<T> { /* private fields */ }

Parser that gets an optional attribute

Trait Implementations

impl<T> Parser<Option<T>> for OptionalAttr<T>

where Attr<T>: Parser<T>,

fn parse(&self, db: &dyn DwarfDb, entry: Die) -> Result<Option<T>>

fn and<U, P>(self, other: P) -> And<Self, P, T, U>

where Self: Sized, P: Parser<U>,

Combine this parser with another, applying both and combining results

fn filter(self) -> Filter<Self>

where Self: Sized,

Turns the input into an optional output if the provided parser succeeds

fn map<U, F>(self, f: F) -> Map<Self, F, T>

where Self: Sized, F: Fn(T) -> U,

Transform the output of this parser

fn map_with_entry<U, F>(self, f: F) -> MapWithDbAndEntry<Self, F, T>

where Self: Sized, F: Fn(&dyn DwarfDb, Die, T) -> U,

fn map_res<U, F>(self, f: F) -> MapRes<Self, F, T>

where Self: Sized, F: Fn(T) -> Result<U>,

Transform the output of this parser

fn then<U, P, V>(self, next: P) -> Then<Self, P, V>

where Self: Sized + Parser<V>, P: Parser<U>,

Chain this parser with another, where the second operates on the first’s result

fn context<S: Into<String>>(self, ctx: S) -> Context<Self>

where Self: Sized,

Add context to errors from this parser