Struct RuleType 

pub struct RuleType(/* private fields */);

Open subject-dimension vocabulary bound to access_control_rules.rule_type.

Core mints exactly two: RuleType::USER and RuleType::ROLE. Every other dimension (department, cost centre, clearance, …) is an extension concern, minted with RuleType::extension and taught to the resolver via a SubjectDimension registered by register_subject_attribute_provider!. Core never interprets an extension slug.

This mirrors AuthzContext: the column is an open vocabulary validated at the Rust boundary rather than by a SQL CHECK, so an unrecognised-but-well-formed slug is data, not an error.

Implementations

impl RuleType

pub const USER: Self

Rule targeting one user by id.

pub const ROLE: Self

Rule targeting every holder of a role.

pub fn extension(slug: impl Into<Cow<'static, str>>) -> Result<Self, AuthzError>

Mints an extension-owned dimension slug.

Errors

Returns AuthzError::InvalidRuleType when the slug is empty, is not lowercase snake_case, or collides with a core built-in. The shape requirement keeps dimensions from independent extensions from colliding with each other or with user / role.

pub fn as_str(&self) -> &str

Trait Implementations

impl Clone for RuleType

fn clone(&self) -> RuleType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuleType

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

Formats the value using the given formatter.

impl<'r> Decode<'r, Postgres> for RuleType

fn decode( value: <Postgres as Database>::ValueRef<'r>, ) -> Result<Self, BoxDynError>

Decode a new value of this type using a raw value from the database.

impl<'de> Deserialize<'de> for RuleType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for RuleType

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

Formats the value using the given formatter.

impl<'q> Encode<'q, Postgres> for RuleType

fn encode_by_ref( &self, buf: &mut <Postgres as Database>::ArgumentBuffer, ) -> Result<IsNull, BoxDynError>

Writes the value of self into buf without moving self.

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer, ) -> Result<IsNull, Box<dyn Error + Sync + Send>>

where Self: Sized,

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<<DB as Database>::TypeInfo>

fn size_hint(&self) -> usize

impl Eq for RuleType

impl From<&str> for RuleType

fn from(s: &str) -> Self

A rule type read back from storage is data, not input: an extension dimension core has never heard of round-trips instead of poisoning the read. Minting a new slug goes through RuleType::extension, which is where the shape rules are enforced.

impl Hash for RuleType

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 Ord for RuleType

fn cmp(&self, other: &RuleType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RuleType

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for RuleType

fn partial_cmp(&self, other: &RuleType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for RuleType

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RuleType

impl Type<Postgres> for RuleType

fn type_info() -> <Postgres as Database>::TypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<Postgres as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.