Module function 

Functions: the typed units of work a task runs.

Re-exports

pub use crate::expr::ExprVisitor;

pub use crate::expr::FieldKind;

pub use crate::expr::FieldSpec;

pub use crate::expr::Rendered;

pub use crate::expr::ValueKind;

Modules

layers

Ready-made CallLayers.

testing

One function call outside a run, for a host’s unit tests.

Structs

CallInfo

Static facts about one call: where it sits in the program, and which iteration it is.

Ctx

A Function’s view of one call.

FunctionInfo

One row of the Registry::catalogue: a function, as tooling sees it.

FunctionSpec

What a function says about itself, for tooling. Data only.

Next

The rest of a call’s chain: the run’s layers, then the registry’s, then the function. Each list runs outermost first.

Prepare

What Function::prepare is told about the call site it prepares.

Reference

A config field that names another definition, such as a connector.

Registry

Functions and layers, plus the ExprEngine they compile against.

Templated

A plugin function’s config: the fields its manifest declared, compiled by their kinds. The fields come from the CompileCx’s runtime fields.

Enums

Outcome

What a call tells the engine. v3’s TaskOutcome, unchanged.

RetrySafety

Is running a function twice the same as running it once?

Traits

CallLayer

Around-call middleware for host calls.

Function

A host function: a typed config compiled once at build, and a call per task run.

FunctionConfig

A function’s input, compiled at build so a malformed one fails before any message runs. #[derive(FunctionConfig)] writes the implementation.

Type Aliases

BoxFuture

A boxed, Send future: what a CallLayer returns.

Derive Macros

FunctionConfig

Derives FunctionConfig (and ConfigField, so a derived config nests). Derives FunctionConfig for a function’s typed configuration, and ConfigField, so a derived config nests inside another.