Enum MissingVariablePolicy 

pub enum MissingVariablePolicy {
    EmptyWithWarning,
    PreserveWithWarning,
    Error,
}

Behavior for an unset direct $VAR or ${VAR} substitution.

Variants

EmptyWithWarning

Match Compose’s documented behavior: warn and substitute an empty string.

PreserveWithWarning

Warn and retain the original expression in the recovered value.

Error

Emit an error and retain the original expression in the recovered value.

Trait Implementations

impl Clone for MissingVariablePolicy

fn clone(&self) -> MissingVariablePolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for MissingVariablePolicy

impl Debug for MissingVariablePolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for MissingVariablePolicy

impl Hash for MissingVariablePolicy

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MissingVariablePolicy

fn eq(&self, other: &MissingVariablePolicy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MissingVariablePolicy