Struct rustc_trait_selection::traits::error_reporting::on_unimplemented::OnUnimplementedNote

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>>,
}

For the #[rustc_on_unimplemented] attribute

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

impl Default for OnUnimplementedNote

fn default() -> OnUnimplementedNote

Returns the “default value” for a type.

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