Struct CapturedSink 

pub struct CapturedSink { /* private fields */ }

Buffering sink that accumulates formatted entries for an interactive consumer to drain. The TUI installs one for the alt-screen lifetime so lsm_warn! / lsm_error! / lsm_debug! surface in the live-preview warnings panel instead of painting over the rendered frame.

Captured format is [<tag>] <msg> — the surrounding UI prefixes each line with its own marker (e.g. ⚠), so the linesmith prefix and colon would be redundant noise.

Implementations

impl CapturedSink

pub fn drain(&self) -> Vec<String>

Take all currently-buffered entries, leaving the sink empty. The TUI calls this between draws so each frame’s warnings reflect that frame’s render only.

Trait Implementations

impl Debug for CapturedSink

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

Formats the value using the given formatter.

impl Default for CapturedSink

fn default() -> CapturedSink

Returns the “default value” for a type.

impl LogSink for CapturedSink

fn emit(&self, lvl: Level, msg: &str)

Emit a level-gated diagnostic. The caller has already confirmed the level is enabled — the sink writes unconditionally. Implementations defensively no-op on Level::Off rather than relying on the caller; the macros never pass Off, but emit() is pub.

fn emit_error(&self, msg: &str)

Emit a structural-failure diagnostic. Always fires regardless of the configured level — LINESMITH_LOG=off users still see “the statusline broke” because there’s no other channel.