Struct DomainToken 

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

An opaque, domain-supplied classification token.

blut-graph-core NEVER interprets these. The compiler does exactly three things with a token: compares it to another for edge compatibility, rejects it when empty, and folds its bytes into the plan hash. It has no opinion about what any particular token means.

That is the point. The vocabulary belongs to the domain layer (ADR 0034) — a biosignal domain names recordings and signal blocks, a vision domain names frames and tensors, and the compiler stays ignorant of both. Before the 2026-08-26 domain-token migration this slot was a pair of enums (AbirRootType/AbirViewType) that hard-coded one domain’s taxonomy into the compiler; consumers were already escaping it through an Unknown(String) variant in 10 of 22 call sites, which is the shape below with extra steps.

Construction is deliberately permissive — an empty token is representable and is rejected by [crate::compile]’s port-contract validation, exactly as the empty Unknown("") was. Validity is the compiler’s judgement, not the constructor’s.

Implementations

impl DomainToken

pub fn new(value: impl Into<String>) -> Self

pub fn as_str(&self) -> &str

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for DomainToken

fn clone(&self) -> DomainToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DomainToken

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

Formats the value using the given formatter.

impl Default for DomainToken

fn default() -> DomainToken

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DomainToken

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DomainToken

impl From<&str> for DomainToken

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<String> for DomainToken

fn from(value: String) -> Self

Converts to this type from the input type.

impl Ord for DomainToken

fn cmp(&self, other: &DomainToken) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for DomainToken

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for DomainToken

fn partial_cmp(&self, other: &DomainToken) -> 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 DomainToken

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 DomainToken