Trait UnsetVariableEnvironment 

pub trait UnsetVariableEnvironment: VariableEnvironment {
    // Required method
    fn unset_var(&mut self, name: &Self::VarName);
}

An interface for unsetting shell and envrironment variables.

Required Methods

fn unset_var(&mut self, name: &Self::VarName)

Unset the value of some variable (including environment variables).

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<'a, T: ?Sized + UnsetVariableEnvironment> UnsetVariableEnvironment for &'a mut T

fn unset_var(&mut self, name: &T::VarName)

Implementors

impl<'a, E> UnsetVariableEnvironment for EnvRestorer<'a, E>

where E: ?Sized + VariableEnvironment + ExportedVariableEnvironment + UnsetVariableEnvironment + FileDescEnvironment, E::FileHandle: Clone, E::VarName: Clone, E::Var: Clone,

impl<A, FM, L, V, EX, WD, B, N, ERR> UnsetVariableEnvironment for Env<A, FM, L, V, EX, WD, B, N, ERR>

where V: UnsetVariableEnvironment, N: Hash + Eq,

impl<N, V> UnsetVariableEnvironment for VarEnv<N, V>

where N: Eq + Clone + Hash, V: Eq + Clone,