Two follow-ups on the Rhai formatter shipped in 0.5.1.
* Formatter no longer collapses user-intent blank lines between
statements. The lexer now records a side-channel list of offsets
where the source contained two-or-more consecutive newlines; the
formatter consults it and emits a single blank in the same spot
(rustfmt's `blank_lines_upper_bound = 1` policy applied strictly —
the prior forced blank between top-level `fn` decls is dropped, so
the formatter never *adds* a blank the user didn't write).
* Parse errors now read like Rhai's own diagnostics. `expect()` takes
an optional `role` hint and each call site supplies a domain phrase
(`name of a variable`, `function name in function declaration`,
`'{' to begin a block`, `name of a property`, …). End-of-input is
reported as `script is incomplete`. The dashboard banner renders
`Parse error: {message} (line L, position C)` with 1-based
coordinates, matching Rhai's format exactly.
The FormatError payload also keeps the byte `offset` so callers that
want to drive the editor cursor (CodeMirror works in offsets) still
have it.
Also folds the workspace Cargo.lock version bumps for 0.5.1 — the
lock-file rewrite that should have travelled with the prior commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
AST-based pretty-printer: tab-indented, 100-col print width, normalized
operator spacing, predictable reflow of long argument lists, comments
preserved verbatim. Refuses to emit on a parse failure and returns the
first error, so the Edit-tab button mirrors the JSON Format UX —
inline `.error.inline` banner; doc untouched on failure.
Patch bump to `0.5.1` across Cargo.toml workspace.package, the
dashboard package.json, and the docs/versioning.md Current versions
table.
Bundle delta versus the previous build: +6 KB raw, +1.5 KB gzipped.
Cumulative since the start of this work: +28 KB raw, +7.3 KB gzipped —
well under the +100 KB budget.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
