Struct PresentTarget 

pub struct PresentTarget<'a, E: ConditionEvaluator + ?Sized>(pub &'a E);

Evaluates conditions for an element or group that is known to be present, to decide whether it is allowed there.

The message type’s presence_conditions are True: whatever the condition annotates is there. Only the AHB’s conditions proper ([1] to [499]) decide; notes ([500]–[899]), formats ([900]–[999]) and repetition rules ([2000] and up: “genau einmal je SG8 …”) say nothing about whether something may be sent, and are Unknown — so [197] ∧ [2308] is false when [197] is, and [2317] ⊻ [2318] is never.

Tuple Fields

0: &'a E

Trait Implementations

impl<E: ConditionEvaluator + ?Sized> ConditionEvaluator for PresentTarget<'_, E>

fn evaluate( &self, condition: u32, ctx: &EvaluationContext<'_>, ) -> ConditionResult

Evaluate a single condition by number.

fn is_external(&self, condition: u32) -> bool

Returns true if the given condition requires external context (i.e., cannot be determined from the EDIFACT message alone).

fn is_known(&self, condition: u32) -> bool

Returns true if this evaluator has an implementation for the given condition number (whether internal or external). Conditions that fall through to the _ => Unknown wildcard return false.

fn message_type(&self) -> &str

Returns the message type this evaluator handles (e.g., “UTILMD”).

fn format_version(&self) -> &str

Returns the format version this evaluator handles (e.g., “FV2510”).