Trait ParseOptional

pub trait ParseOptional: AsRef<str> {
    // Provided method
    fn parse_optional<T: FromStr>(&self) -> Result<Option<T>, T::Err> { ... }
}

Extension traits for optionally parsing non-empty strings.

This is a common pattern in Cosmos SDK protobufs.

Provided Methods

fn parse_optional<T: FromStr>(&self) -> Result<Option<T>, T::Err>

Parse optional field.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl ParseOptional for str

impl ParseOptional for String

Implementors