Trait ReplaceExpr 

pub trait ReplaceExpr
where
    Self: Sized,
{
    // Required method
    fn replace_expr(&self, expr: Expr) -> Option<Self>;

    // Provided method
    fn is_replaceable(&self) -> bool { ... }
}

Provides functionality to replacee inner Expr and return new Self with given Expr.

Required Methods

fn replace_expr(&self, expr: Expr) -> Option<Self>

Replaces current expr by given Expr if it’s possible, returning Some(new Self) with given Expr, otherwise returns None.

Provided Methods

fn is_replaceable(&self) -> bool

Can expr be replaced or not.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors

impl ReplaceExpr for DefaultExpr

impl ReplaceExpr for ProcessExpr