Trait ExpressionMapper 

pub trait ExpressionMapper<From, To> {
    // Required method
    fn map_expression(expr: Expression<From>) -> Expression<To>
       where From: Into<To> + Send + Clone + 'static,
             To: Send + 'static;
}

Trait for mapping Expression from one type to another

Required Methods

fn map_expression(expr: Expression<From>) -> Expression<To>

where From: Into<To> + Send + Clone + 'static, To: Send + 'static,

Convert Expression<From> to Expression<To>

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors

impl<From, To> ExpressionMapper<From, To> for Expression<From>