Struct StepContext 

pub struct StepContext<'a> { /* private fields */ }

What a step is run with: the part, the runner running it, and its own id — what everything it produces is named after. A step only declares what it produces (StepContext::produce); what takes work is done in the makes.

Implementations

impl<'a> StepContext<'a>

pub fn step(&self) -> &'a str

The id of the step.

pub fn runner(&self) -> &'a Runner

The runner running the step: the files around its program.

pub fn reader(&self) -> Reader<'_>

The part as the step sees it so far, recording nothing: what a step that declares one node per element of something asks.

pub fn produce<T: Target, Args: PartialEq + Clone + Debug + 'static>( &mut self, target: &TargetReference<T>, args: &Args, make: Make<Args, T>, ) -> GeopResult<()>

Produces the step’s node of target: reused if it was made from equal args and everything it read reads the same now, else made by make, at once, so that a later node of the step can read it. Fails as make fails, or if the step produced target already, or — for a target that is not a chain (Target::CHAIN) — if a step before produced it, naming both.