Struct ValidationRuleContext 

pub struct ValidationRuleContext<'a> {
    pub message_ref: Option<&'a str>,
    pub message_type: Option<&'a str>,
    /* private fields */
}

Typed context injected into profile rule closures at validation time.

Rules access per-call metadata via ValidationRuleContext::metadata and the message reference (UNH element 0) via ValidationRuleContext::message_ref.

Example

let pack = ProfileRulePack::new("AHB-11001")
    .with_rule_fn(|segs, ctx, issues| {
        let Some(pruefid) = ctx.metadata::<Pruefid>() else { return };
        let msg_ref = ctx.message_ref.unwrap_or("<unknown>");
    });

Fields

message_ref: Option<&'a str>

Message reference (UNH element 0) for this validation call.

message_type: Option<&'a str>

EDIFACT message type extracted from UNH element 1 component 0.

Pre-extracted once by ValidationContext before dispatching to validators, so each ProfileRulePack can skip its own UNH scan. None when the message type could not be determined (no UNH, or when calling ProfileRulePack::validate_batch directly without a ValidationContext).

Implementations

impl<'a> ValidationRuleContext<'a>

pub fn empty() -> Self

Construct a context with no metadata and no message reference.

pub fn new<T: Any + Send + Sync>(value: &'a T) -> Self

Construct a context holding a typed metadata reference.

pub fn with_message_ref(self, msg_ref: &'a str) -> Self

Attach a message reference to this context (builder-style).

pub fn with_message_type(self, message_type: &'a str) -> Self

Attach a pre-extracted message type to this context (builder-style).

pub fn metadata<T: Any + Send + Sync>(&self) -> Option<&T>

Downcast the metadata to T. Returns None if no metadata was injected or if the concrete type does not match T.

pub fn has_metadata(&self) -> bool

Return true if metadata was provided.

Trait Implementations

impl<'a> Clone for ValidationRuleContext<'a>

fn clone(&self) -> ValidationRuleContext<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ValidationRuleContext<'a>

impl Debug for ValidationRuleContext<'_>

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

Formats the value using the given formatter.