Struct Signature 

pub struct Signature {
    pub input: Ty,
    pub output: Ty,
}

What a block accepts and produces.

Declared by the block itself, through a cf_signature export, rather than in a sidecar file beside it. A sidecar can disagree with the code it describes and nothing forces anyone to notice; a declaration compiled into the module travels with it, cannot go stale, and leaves one artifact to ship rather than two to keep in step.

Display/FromStr render and parse it as "{input} -> {output}" — each side is a Ty, and this is the compact form the catalog caches and a bundle manifest embeds. Splitting on " -> " is unambiguous only because Ty::describe() never produces that substring itself.

Fields

input: Ty

What the block needs as input.

output: Ty

What it produces.

Trait Implementations

impl Clone for Signature

fn clone(&self) -> Signature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Signature

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Signature

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Signature

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

Formats the value using the given formatter.

impl Eq for Signature

impl FromStr for Signature

type Err = String

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for Signature

fn eq(&self, other: &Signature) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Signature

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Signature