Struct Context 

pub struct Context<'a> {
    pub default_dict: Arc<dyn Dict + 'a>,
    /* private fields */
}

Context for evaluating an Expr.

An instance of this type is needed to evaluate Generator invocations. This context also provides a mapping from dictionary hashes to word lists.

Fields

default_dict: Arc<dyn Dict + 'a>

Implementations

impl<'a> Context<'a>

pub fn new( generator: impl IntoIterator<Item = Arc<dyn GeneratorFunc>>, dict: impl IntoIterator<Item = Arc<dyn Dict + 'a>>, default_dict: Arc<dyn Dict + 'a>, ) -> Self

pub fn empty() -> Self

Returns a context without any generators.

pub fn with_default_dict(&mut self, default_dict: Arc<dyn Dict + 'a>) -> Self

Returns a context with the specified default Dict.

The dict is added to the lookup table for the returned context. It may or may not be added to the table for the original context, depending whether there are other clones of the context or not (see Arc::make_mut.)

pub fn dict_hash(args: &[&str]) -> Option<[u8; 32]>

pub fn get_generator( &self, name: &str, ) -> Result<Arc<dyn GeneratorFunc>, NotFound>

pub fn get_dict( &self, hash: &Option<[u8; 32]>, ) -> Result<Arc<dyn Dict + 'a>, NotFound>

impl<'a> Context<'a>

pub fn with_dict(dict: Arc<dyn Dict + 'a>) -> Self

Trait Implementations

impl<'a> Clone for Context<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Context<'a>

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

Formats the value using the given formatter.

impl Default for Context<'_>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> Extend<Arc<dyn Dict + 'a>> for Context<'a>

fn extend<T: IntoIterator<Item = Arc<dyn Dict + 'a>>>(&mut self, iter: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.