Enum DiscriminatorRule 

pub enum DiscriminatorRule {
    Prefix(String),
    Suffix(String),
    Contains(String),
    Regex(String),
    FieldEquals(FieldDiscriminator),
    FieldAbsent(String),
}

How the decoder identifies that a value belongs to a given union branch.

Variants

Prefix(String)

String value starts with this prefix (e.g. "ssh://").

Suffix(String)

String value ends with this suffix (e.g. ".tar.gz").

Contains(String)

String value contains this substring.

Regex(String)

String value has a match for this regex in the implementation’s regex dialect. The pattern must include anchors when whole-string matching is required.

FieldEquals(FieldDiscriminator)

Record-shaped value where the named field is present, and — if literal is set — has the given literal string value. The common JSON-discriminated-object case ({"kind":"circle",…}) is field-equals { field-name: "kind", literal: some("circle") }.

FieldAbsent(String)

Record-shaped value where the named field is absent.

Trait Implementations

impl Clone for DiscriminatorRule

fn clone(&self) -> DiscriminatorRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiscriminatorRule

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

Formats the value using the given formatter.