Enum EntryHeader 

#[non_exhaustive]
pub enum EntryHeader {
    UnityCrossThreadLogger,
    ConnectionManager,
    Matchmaking,
    Metadata,
    TruncationMarker,
}

The known log entry header prefixes in MTG Arena’s Player.log.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnityCrossThreadLogger

[UnityCrossThreadLogger] — the most common header, used for game state, client actions, match lifecycle, and most other events.

ConnectionManager

[ConnectionManager] — emitted for Arena’s connection-lifecycle diagnostics (e.g., Reconnect result : ..., Reconnect succeeded, Reconnect failed). These lines are plain-text, single-line entries in practice.

Matchmaking

Matchmaking: — a bare (non-bracketed) prefix Arena emits for matchmaking-side connection markers such as Matchmaking: GRE connection lost. These lines are plain-text, single-line entries in practice.

Metadata

Metadata lines that appear outside bracket-delimited entries.

Currently covers DETAILED LOGS: ENABLED and DETAILED LOGS: DISABLED, which Arena writes near the top of every session (typically line 24).

TruncationMarker

[Message summarized because one or more GameStateMessages exceeded the 50 GameObject or 50 Annotation limit.] — Arena’s truncation marker emitted in place of an oversized GameStateMessage body. The marker is followed by ::: GameStateMessage, :: GameObject Count = N, :: Annotation Count = M, and the next sibling message header. The GSM body itself is irrecoverable from Player.log; this header surfaces the signal so downstream consumers can detect a missed gsm_id via the gap.

Implementations

impl EntryHeader

pub fn as_str(self) -> &'static str

Returns the header string as it appears in the log.

Bracket-delimited headers return the full [...] prefix. Metadata returns "METADATA" as a synthetic label (metadata lines have no bracket prefix in the actual log).

Trait Implementations

impl Clone for EntryHeader

fn clone(&self) -> EntryHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EntryHeader

impl Debug for EntryHeader

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

Formats the value using the given formatter.

impl Display for EntryHeader

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

Formats the value using the given formatter.

impl Eq for EntryHeader

impl PartialEq for EntryHeader

fn eq(&self, other: &EntryHeader) -> 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 StructuralPartialEq for EntryHeader