Struct rustc_trait_selection::traits::OnUnimplementedNote

source · [−]
pub struct OnUnimplementedNote {
    pub message: Option<String>,
    pub label: Option<String>,
    pub note: Option<String>,
    pub parent_label: Option<String>,
    pub append_const_msg: Option<Option<Symbol>>,
}

Fields

message: Option<String>label: Option<String>note: Option<String>parent_label: Option<String>append_const_msg: Option<Option<Symbol>>

Append a message for ~const Trait errors. None means not requested and should fallback to a generic message, Some(None) suggests using the default appended message, Some(Some(s)) suggests use the s message instead of the default one..

Trait Implementations

Returns the “default value” for a type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 104 bytes