Trait Transform 

pub trait Transform: Send + Sync {
    // Required methods
    fn input(&self) -> TreeKind;
    fn output(&self) -> TreeKind;
    fn run<'a>(
        &self,
        tree: Tree<'a>,
        file: &mut File,
        alloc: &'a Allocator,
    ) -> Result<Tree<'a>, Error>;

    // Provided methods
    fn start<'a>(
        &self,
        tree: Tree<'a>,
        file: &mut File,
        alloc: &'a Allocator,
    ) -> Result<Step<'a>, Error> { ... }
    fn host(&self) -> Option<u32> { ... }
}

Changes a tree, or bridges it into another kind of tree.

Required Methods

fn input(&self) -> TreeKind

fn output(&self) -> TreeKind

fn run<'a>( &self, tree: Tree<'a>, file: &mut File, alloc: &'a Allocator, ) -> Result<Tree<'a>, Error>

Provided Methods

fn start<'a>( &self, tree: Tree<'a>, file: &mut File, alloc: &'a Allocator, ) -> Result<Step<'a>, Error>

Start the stage: a finished tree, or a job when its work is asynchronous.

fn host(&self) -> Option<u32>

The id of the binding function this stage stands for, which takes and returns whatever tree reaches it; None for a stage the crate runs.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors