Trait StringLengthExpr 

pub trait StringLengthExpr {
    type Output;
}

Required Associated Types

type Output

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl StringLengthExpr for Option<String>

type Output = Option<i32>

impl StringLengthExpr for String

type Output = i32

Implementors