026ad888cd
Syntax errors were positionless ('Unterminated list', no idea where).
Now they use Clojure's shape:
Error: Syntax error reading source at (src/app/syn.clj:3:8): Unmatched delimiter: ]
at src/app/top.clj:1
The reader's 15 error sites raise a {:jolt/reader-error :msg :pos}
struct carrying the byte offset (every site already had pos in scope).
The parse entry points convert offset -> line:col on demand and
re-raise the formatted message: parse-string against its own string
(no file), parse-all-positioned against the full source with the
file threaded in from the loaders — rebasing slice-relative offsets
onto the original source so positions stay absolute. No per-token
cost; nothing is tracked until an error actually happens.
Unmatched-delimiter messages match Clojure's 'Unmatched delimiter: )'
wording. cli-test rows assert positions for unterminated string/list,
unmatched delimiter through a require (composing with round 4's
'while loading' chain), and bad ## tokens. Gate green, suite 4718
steady, bench within noise.
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| clojure-stdlib/clojure | ||
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