Commits on Jul 30, 2026

1. Add test corpus, oracle tooling, and the implementation loop …

   Build the conformance corpus and workflow ahead of parser implementation:
   
   - cmd/regenerate-parse: extracts literal SQL from SQLite's TCL test suite
     (do_execsql_test, do_catchsql_test, and single-call do_test bodies) and
     records ground truth from a real SQLite build — a small embedded C oracle
     compiled against the pinned 3.53.4 amalgamation that splits statements
     shell-style and prepares each one against :memory: without executing.
     Downloads are pinned by SHA-256 and cached in .sqlite/ (gitignored).
   - parser/testdata: 4,685 cases across 69 corpus files with raw
     per-statement oracle results (ok, or exact error message and offset),
     plus metadata sidecars marking every case as todo.
   - internal/testfile: corpus file format, metadata sidecars, and the
     accept/reject classification policy (syntax-family errors must be
     reproduced verbatim; semantic prepare errors mean the parse succeeded).
   - internal/tclextract: conservative TCL extraction; anything it cannot take
     verbatim is counted and skipped, never guessed at.
   - cmd/next-test: picks the next todo case to implement.
   - parser, ast: API skeletons (Parse, parser.Error, Node/Stmt/Expr) so the
     harness compiles; parser/parser_test.go runs the corpus, skipping todo
     cases by default and clearing them from metadata under -check-parse.
   - CLAUDE.md, README.md, testdata provenance README, MIT LICENSE, CI.
   
   Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
   Claude-Session: https://claude.ai/code/session_014vjRSyzyQ5AGtfH8DZYcfc

   

   claude committed Jul 30, 2026
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