Module ndjson 

Newline-delimited JSON (NDJSON / JSON Lines) output emitter.

Each row is serialized as its own line of compact JSON, terminated by \n. Consumers stream-parse line-by-line — LSP integrations, CI log pipelines, and jq -c filters can react as analyses complete rather than waiting for the closing ] of a JSON array.

Spec: https://github.com/ndjson/ndjson-spec

Each line is a complete JSON object on its own; lines are independent. No trailing newline after the final row (also valid NDJSON; many consumers strip it anyway). UTF-8 throughout. Numbers are emitted via serde_json’s default f64/i64 encoding — same shape as the batch json emitter.

Existing json.rs writers all expand to serde_json::to_writer_pretty(w, rows) over a &[T: Serialize] slice. The NDJSON shape iterates the same slice and emits one compact object per row. No new row types — the same HotspotRow / CodeHealthRow / etc serialize identically; only the framing changes.

Functions

write_ndjson

Generic NDJSON writer. Each row is emitted via serde_json::to_writer (compact form) followed by \n.