Struct WhenView 

#[non_exhaustive]
pub struct WhenView {
    pub url_path: Option<UrlPathView>,
    pub method: Option<String>,
    pub headers: Vec<HeaderConditionView>,
    pub body: Vec<BodyConditionView>,
}

Structured representation of a rule’s when clause (spec §5.3).

RFC 004 — Structured WhenView

The boolean has_header_conditions / has_body_conditions flags from 5.3.0 are replaced with typed Vec fields. The GUI can now render the full list of conditions in a rule list without a second query. Use headers.is_empty() / body.is_empty() wherever the old boolean flags were checked.

Why each field is Option

A rule with when.request.url_path = "/api" and no other clauses matches every request whose URL is /api, regardless of method or headers. Carrying explicit Nones for unset fields keeps the distinction between “not constrained” and “constrained to empty”.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

url_path: Option<UrlPathView>

URL-path predicate. None when the rule has no URL-path constraint.

method: Option<String>

HTTP method — uppercase string like "GET".

headers: Vec<HeaderConditionView>

Structured header conditions (RFC 004). Empty when none.

body: Vec<BodyConditionView>

Structured body conditions (RFC 004). Empty when none.

Implementations

impl WhenView

pub fn summary(&self) -> String

Compact human-readable summary.

Trait Implementations

impl Clone for WhenView

fn clone(&self) -> WhenView

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WhenView

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

Formats the value using the given formatter.

impl Default for WhenView

fn default() -> WhenView

Returns the “default value” for a type.

impl Serialize for WhenView

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

where __S: Serializer,

Serialize this value into the given Serde serializer.