Struct FoldVariant 

pub struct FoldVariant {
    pub ctor: Option<Ident>,
    pub fallible: bool,
    pub clone: bool,
    pub inputs: Vec<FoldArg>,
}

One dispatch arm of a FoldPlan.

Fields

ctor: Option<Ident>

None => identity (pass the decoded target value through). Some => call this constructor function.

fallible: bool

Whether the constructor returns Result (its Err is routed through the adapter’s error channel). Always false for identity.

clone: bool

true for a borrowed identity arm (&T parameter): the input leaf is Option<&T> and the fold clones it (T: Clone) so the caller’s handle is preserved rather than consumed. false otherwise.

inputs: Vec<FoldArg>

This variant’s constructor inputs, in parameter order. Each is either a flat wire leaf or a recursively-built sub-value (a parameter that is itself a type with a default constructor — recursive input).

Trait Implementations

impl Clone for FoldVariant

fn clone(&self) -> FoldVariant

Returns a duplicate of the value.

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

Performs copy-assignment from source.