Probes

Small standalone forge projects / files that reproduce each finding in GAPS.md. Each directory is a complete forge project: cd in and run forge build && ./.march/build/debug/<name> (or march --check <file>).

• fieldcall.march — G3, field access on a call result does not parse
• probe1/ — G8 (Bytes over FFI), G9 (NativeArray over FFI), G12 (record vs variant allocation)
• externmod2/ — G6, qualified extern call with args → "Unknown module"
• externmod3/ — G5 (qualified extern → link failure), G11 (caller needs no cap)
• probe_dce/ — G16, zero-arg extern call bound to an unused name is dropped
• pin_main/ — G15, is main on the OS main thread (pthread_main_np) and does pmap_n stay parallel; run with/without MARCH_PIN_MAIN=1 and MARCH_NUM_SCHEDULERS=1
• probe_unit/, unit_extern.march — G23, Unit vs () (not reproduced in isolation)
• refine_index.march — G22, refinement checker coverage for the voxel index
• dotted_pat.march, dotted_pat2.march — G24/G25, dotted constructor patterns
• oneline_match.march — (control) one-line match with tuple patterns parses