Enum UnresolvedVariablePolicy 

pub enum UnresolvedVariablePolicy {
    Preserve,
    Placeholder,
    Error,
}

Policy for variables that cannot be resolved during value expansion.

Variants

Preserve

Keep the variable name as ordinary text.

Placeholder

Render unresolved variables as {undefined:name}.

Error

Return an error for the first unresolved variable.

Trait Implementations

impl Clone for UnresolvedVariablePolicy

fn clone(&self) -> UnresolvedVariablePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnresolvedVariablePolicy

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

Formats the value using the given formatter.

impl PartialEq for UnresolvedVariablePolicy

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for UnresolvedVariablePolicy

impl Eq for UnresolvedVariablePolicy

impl StructuralPartialEq for UnresolvedVariablePolicy