Struct PredicateRefs 

pub struct PredicateRefs {
    pub p_is_implemented: Option<String>,
    pub p_is_available: Option<String>,
    pub p_is_locked: Option<String>,
}

References to predicate provider nodes used for runtime gating.

GenICam’s pIsImplemented, pIsAvailable and pIsLocked each point at another node (typically an Integer, Boolean or IntSwissKnife) whose current value gates whether a feature is implemented, accessible, or writable. These three references are shared by most node variants, so we collect them into one struct to keep the variant fields small.

All three fields are optional; a node with no predicates has PredicateRefs::default(). Serde fields use the GenICam XML spelling so round-trip JSON matches the XML attribute names.

Fields

p_is_implemented: Option<String>

Name of a node evaluating to non-zero iff the feature is implemented.

p_is_available: Option<String>

Name of a node evaluating to non-zero iff the feature is accessible now.

p_is_locked: Option<String>

Name of a node evaluating to non-zero iff the feature is locked (RW→RO).

Implementations

impl PredicateRefs

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

Iterate over all referenced node names (for dependency-graph walks).

pub fn is_empty(&self) -> bool

true when every field is None.

Trait Implementations

impl Clone for PredicateRefs

fn clone(&self) -> PredicateRefs

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PredicateRefs

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

Formats the value using the given formatter.

impl Default for PredicateRefs

fn default() -> PredicateRefs

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PredicateRefs

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PredicateRefs

fn eq(&self, other: &PredicateRefs) -> 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 Serialize for PredicateRefs

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PredicateRefs

impl StructuralPartialEq for PredicateRefs