Struct DerivedRequirement 

pub struct DerivedRequirement {
    pub class: Name,
    pub part: DerivedPart,
    pub argument: String,
    pub missing: String,
    pub function: bool,
    pub declared: DeclarationSite,
}

An argument of a derived instance’s type with no instance of the derived class — see Error::DerivedInstanceRequires.

Fields

class: Name

The class being derived.

part: DerivedPart

What the argument was found in.

argument: String

The type of the argument, as written in the type’s declaration.

missing: String

The type that has no instance: the argument itself, or what an instance an application of it needs asks for.

function: bool

Whether missing is a function type, which no instance can be declared for.

declared: DeclarationSite

Where the type being derived for was declared, when that is in this module.

Trait Implementations

impl Clone for DerivedRequirement

fn clone(&self) -> DerivedRequirement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DerivedRequirement

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

Formats the value using the given formatter.

impl PartialEq for DerivedRequirement

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DerivedRequirement