Represents a function’s signature in a trait declaration, trait implementation, or a free function.
decl: &'hir FnDecl<'hir>§
Auto Trait Implementations§
Returns the argument unchanged.
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: 24 bytes