Struct EngineBuilder 

pub struct EngineBuilder<T, M, R>
where
    T: Uniplate,
    R: Rule<T, M>,
{ /* private fields */ }

A builder type for constructing and configuring Engine instances.

Implementations

impl<T, M, R> EngineBuilder<T, M, R>

where T: Uniplate, R: Rule<T, M>,

pub fn new() -> Self

Creates a new builder instance with the default select_first selector.

pub fn build(self) -> Engine<T, M, R>

Consumes the builder and returns the constructed Engine instance.

pub fn add_rule_group(self, rules: Vec<R>) -> Self

Adds a collection of rules with the same priority.

These rules will have a lower priority than previously added groups.

pub fn add_rule(self, rule: R) -> Self

Adds a single rule in a group by itself.

This is a special case of add_rule_group.

pub fn append_rule_groups(self, groups: Vec<Vec<R>>) -> Self

Adds a collection of rule groups to the existing one.

Rule groups maintain the same order and will be lower priority than existing groups.

pub fn add_before_up(self, handler: fn(&T, &mut M)) -> Self

Register an event handler to be called before moving $dir in the tree.

pub fn add_after_up(self, handler: fn(&T, &mut M)) -> Self

Register an event handler to be called after moving $dir one node in the tree.

pub fn add_before_down(self, handler: fn(&T, &mut M)) -> Self

Register an event handler to be called before moving $dir in the tree.

pub fn add_after_down(self, handler: fn(&T, &mut M)) -> Self

Register an event handler to be called after moving $dir one node in the tree.

pub fn add_before_right(self, handler: fn(&T, &mut M)) -> Self

Register an event handler to be called before moving $dir in the tree.

pub fn add_after_right(self, handler: fn(&T, &mut M)) -> Self

Register an event handler to be called after moving $dir one node in the tree.

pub fn set_selector(self, selector: SelectorFn<T, M, R>) -> Self

Sets the selector function to be used when multiple rules are applicable to the same node.

See the morph method of the Engine type for more information.

Trait Implementations

impl<T, M, R> Default for EngineBuilder<T, M, R>

where T: Uniplate, R: Rule<T, M>,

fn default() -> Self

Returns the “default value” for a type.

impl<T, M, R> From<EngineBuilder<T, M, R>> for Engine<T, M, R>

where T: Uniplate, R: Rule<T, M>,

fn from(val: EngineBuilder<T, M, R>) -> Self

Converts to this type from the input type.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 176 bytes