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* test: make subr mocks variadic for native-comp, add arity meta-testCraig Jennings2 days1-3/+3
| | | | | | | | Re-enabling native-comp surfaced a suite-wide fragility. When a test redefines a C primitive (or a native-compiled function), native-comp routes native callers through a trampoline that calls the mock with the primitive's maximum arity. A fixed-arity mock narrower than the primitive then throws wrong-number-of-arguments, intermittently, as the eln-cache fills. I swept every arity-narrow subr mock to append &rest _ (188 sites, preserving any named args the body uses), and added tests/test-meta-subr-mock-arity.el, which fails make test on any subr mock too narrow for the primitive's arity. The rule isn't "never mock a subr". The suite mocks message and completing-read freely. It's "a subr mock must accept the primitive's arity." Background, the three failure modes, and the research are in docs/native-comp-subr-mocking.org.
* refactor(prog): run JSON/YAML/webdev formatters via argv, not a shellCraig Jennings2026-05-251-0/+31
| | | | | | | | cj/json-format-buffer, cj/yaml-format-buffer, and cj/webdev-format-buffer ran their formatters through shell-command-on-region, which goes via a shell. I moved each to call-process-region with an explicit program and argv list, so a filename or buffer content can't be word-split or read as shell syntax. The webdev path dropped its shell-quote-argument dance once the filename became a plain argv element. Point preservation is unchanged. One deliberate improvement, and it's tested: shell-command-on-region with replace replaced the buffer with the formatter's error text on a non-zero exit. The new per-formatter helper captures output to a temp buffer, checks the exit code, replaces only on success, and otherwise raises a user-error carrying stderr — so a failed format leaves the buffer alone. I kept a small format-region helper in each of the three modules rather than one shared helper. They have no common module to live in short of system-lib, and coupling three unrelated domain modules through it wasn't worth saving sixteen lines.
* feat(json,yaml): add tree-sitter modes, formatting, and jq integrationCraig Jennings2026-03-021-0/+109
New prog-json module: json-ts-mode with jq formatting (C-; f) and jq-interactively (C-c C-q). Upgraded prog-yaml to yaml-ts-mode with prettier formatting. Both use treesit-auto for grammar management. Includes 18 new tests (10 JSON, 8 YAML), 185/185 passing.