Enum UnionTagMode 

pub enum UnionTagMode {
    Eure,
    Repr,
}

Mode for union tag resolution.

This determines how variant tags are resolved during union parsing:

• Eure: Use $variant extension and untagged matching (for native Eure documents)
• Repr: Use only VariantRepr patterns (for JSON/YAML imports)

These modes are mutually exclusive to avoid false positives.

Variants

Eure

Eure mode: Use $variant extension or untagged matching.

This is the default mode for native Eure documents.

• If $variant extension is present, use it to determine the variant
• Otherwise, use untagged matching (try all variants)
• VariantRepr is ignored in this mode

Repr

Repr mode: Use only VariantRepr patterns.

This mode is for documents imported from JSON/YAML.

• Extract variant tag using VariantRepr (External, Internal, Adjacent)
• $variant extension is ignored in this mode
• If repr doesn’t extract a tag, error (no untagged fallback)

Trait Implementations

impl Clone for UnionTagMode

fn clone(&self) -> UnionTagMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnionTagMode

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

Formats the value using the given formatter.

impl Default for UnionTagMode

fn default() -> UnionTagMode

Returns the “default value” for a type.

impl Hash for UnionTagMode

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 UnionTagMode

fn eq(&self, other: &UnionTagMode) -> 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 UnionTagMode

impl Eq for UnionTagMode

impl StructuralPartialEq for UnionTagMode