Struct Enum 

pub struct Enum {
    pub schema: Cow<'static, str>,
    pub name: Cow<'static, str>,
    pub values: Cow<'static, [Cow<'static, str>]>,
}

Runtime enum entity for serde serialization.

Uses Cow<'static, str> for all string fields, which works with both:

• Borrowed data from const definitions (Cow::Borrowed)
• Owned data from deserialization/introspection (Cow::Owned)

Fields

schema: Cow<'static, str>

Schema name

name: Cow<'static, str>

Enum name

values: Cow<'static, [Cow<'static, str>]>

Enum values

Implementations

impl Enum

pub fn new( schema: impl Into<Cow<'static, str>>, name: impl Into<Cow<'static, str>>, values: impl Into<Cow<'static, [Cow<'static, str>]>>, ) -> Self

Create a new enum (runtime)

pub fn from_strings(schema: String, name: String, values: Vec<String>) -> Enum

Create a new enum from owned strings (convenience for runtime construction)

pub fn schema(&self) -> &str

Get the schema name

pub fn name(&self) -> &str

Get the enum name

impl Enum

pub fn create_enum_sql(&self) -> String

Generate CREATE TYPE … AS ENUM SQL

pub fn drop_enum_sql(&self) -> String

Generate DROP TYPE SQL

pub fn add_value_sql(&self, value: &str, before: Option<&str>) -> String

Generate ALTER TYPE … ADD VALUE SQL

Trait Implementations

impl Clone for Enum

fn clone(&self) -> Enum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Enum

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

Formats the value using the given formatter.

impl Default for Enum

fn default() -> Self

Returns the “default value” for a type.

impl From<EnumDef> for Enum

fn from(def: EnumDef) -> Self

Converts to this type from the input type.

impl PartialEq for Enum

fn eq(&self, other: &Enum) -> 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 Eq for Enum

impl StructuralPartialEq for Enum