Enum OperatorSet 

#[non_exhaustive]
pub enum OperatorSet {
    None,
    Braced,
    Basic,
    Compose,
    DotenvExpand,
}

Variable-reference forms and operators eligible under one expansion policy.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

No variable references are eligible.

Braced

Only braced variables such as ${VAR}; no short or operator forms.

Basic

$VAR and ${VAR} without operators.

Compose

The full operator set, including nested defaults.

DotenvExpand

dotenv-expand-style variables and operators, including nested forms.

Trait Implementations

impl Clone for OperatorSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OperatorSet

impl Debug for OperatorSet

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

Formats the value using the given formatter.

impl Eq for OperatorSet

impl Hash for OperatorSet

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 OperatorSet

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for OperatorSet