Struct ScopeSet 

pub struct ScopeSet {
    pub scopes: Arc<[String]>,
    pub fingerprint_cache: OnceLock<String>,
}

Normalized set of OAuth scopes with a stable fingerprint cache.

Scopes are deduplicated and sorted so equality, ordering, and hashing remain consistent across platforms. The fingerprint helper lazily caches a base64 (no padding) SHA-256 digest of the normalized string and the Hash implementation reuses that cache so hashing stays stable without re-normalizing the strings.

Fields

scopes: Arc<[String]>

The normalized scopes.

fingerprint_cache: OnceLock<String>

The fingerprint of the normalized scopes.

Implementations

impl ScopeSet

pub fn new<I, S>(scopes: I) -> Result<Self, ScopeValidationError>

where I: IntoIterator<Item = S>, S: Into<String>,

Creates a normalized scope set from any iterator.

pub fn len(&self) -> usize

Number of distinct scopes.

pub fn is_empty(&self) -> bool

Returns true if no scopes are defined.

pub fn contains(&self, scope: &str) -> bool

Returns true if the normalized set contains the provided scope.

pub fn iter(&self) -> impl Iterator<Item = &str>

Iterator over normalized scopes.

pub fn normalized(&self) -> String

Returns the normalized string representation (space-delimited).

pub fn fingerprint(&self) -> String

Stable fingerprint derived from the normalized scope list.

The fingerprint is a base64 (no padding) encoding of the SHA-256 digest for the normalized, space-delimited scope string and is cached after the first calculation.

pub fn as_slice(&self) -> &[String]

Returns the underlying slice of scope strings.

Trait Implementations

impl Clone for ScopeSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScopeSet

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

Formats the value using the given formatter.

impl Default for ScopeSet

fn default() -> ScopeSet

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ScopeSet

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ScopeSet

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

Formats the value using the given formatter.

impl FromStr for ScopeSet

type Err = ScopeValidationError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for ScopeSet

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<'a> IntoIterator for &'a ScopeSet

type IntoIter = ScopeIter<'a>

Which kind of iterator are we turning this into?

type Item = &'a str

The type of the elements being iterated over.

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl Ord for ScopeSet

fn cmp(&self, other: &Self) -> 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 ScopeSet

fn eq(&self, other: &Self) -> 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 PartialOrd for ScopeSet

fn partial_cmp(&self, other: &Self) -> 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 ScopeSet

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&[String]> for ScopeSet

type Error = ScopeValidationError

The type returned in the event of a conversion error.

fn try_from(value: &[String]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Vec<String>> for ScopeSet

type Error = ScopeValidationError

The type returned in the event of a conversion error.

fn try_from(value: Vec<String>) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for ScopeSet