pub struct TyAliasWhereClause(pub bool, pub Span);
Expand description

The location of a where clause on a TyAlias (Span) and whether there was a where keyword (bool). This is split out from WhereClause, since there are two locations for where clause on type aliases, but their predicates are concatenated together.

Take this example:

trait Foo {
  type Assoc<'a, 'b> where Self: 'a, Self: 'b;
}
impl Foo for () {
  type Assoc<'a, 'b> where Self: 'a = () where Self: 'b;
  //                 ^^^^^^^^^^^^^^ first where clause
  //                                     ^^^^^^^^^^^^^^ second where clause
}

If there is no where clause, then this is false with DUMMY_SP.

Tuple Fields

0: bool1: Span

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

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 resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

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: 12 bytes