Enum MergeKeyPolicy 

#[non_exhaustive]
pub enum MergeKeyPolicy {
    Merge,
    AsOrdinary,
    Error,
}

Merge key handling policy for YAML mappings.

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.

Merge

Expand YAML merge keys (<< and explicit !!merge <<) into the surrounding mapping, as per the YAML 1.1 specification.

AsOrdinary

Treat YAML merge keys (<< and explicit !!merge <<) as ordinary mapping keys.

Error

Error out on encountering a YAML merge key (<< or explicit !!merge <<), reporting the location.

Trait Implementations

impl Clone for MergeKeyPolicy

fn clone(&self) -> MergeKeyPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MergeKeyPolicy

impl Debug for MergeKeyPolicy

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

Formats the value using the given formatter.

impl Default for MergeKeyPolicy

fn default() -> MergeKeyPolicy

Returns the “default value” for a type.

impl Eq for MergeKeyPolicy

impl PartialEq for MergeKeyPolicy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MergeKeyPolicy