Will Anderson
86b3ad070d
Three codegen bugs surfaced repeatedly across the parallel port-to-El
agents and were patched here:
1. Empty array literal '[]' was emitting el_list_new(0, ) — trailing
comma in a varargs call, fails the C parse. Special-cased: n==0
returns 'el_list_empty()' directly.
2. '==' between two identifiers both tracked in __int_names (typed
Int via 'let x: Int = ...') was miscompiling to str_eq. With the
tagged-pointer Int-as-int64 representation, str_eq strcmp's what
are integer values dressed as char* and segfaults on the first
non-printable byte. Added the int-name lookup, mirroring the
dispatch already present for '+' between Int idents. NotEq got
the same treatment.
3. 'm.field' codegen was passing the raw const char* field name to
el_get_field, which expects el_val_t. C compiler warned about int
conversion; runtime read garbage at the address. Wrapped in
EL_STR(...) so the field name lands as a proper el_val_t.
Runtime additions in the same pass:
- el_runtime.c http_read_request: the loop's boundary check was
'line_end >= hdr_end' which broke before processing the LAST
header line — its trailing \r\n IS hdr_end. Real curl clients
put Content-Length last, so POST bodies were silently arriving
as length 0. Changed to '> hdr_end' so the last line is processed.
soma-server agent surfaced this during smoke testing.
- _GNU_SOURCE feature macro: clock_gettime/CLOCK_REALTIME, strcasecmp,
and the dlfcn extensions (RTLD_DEFAULT) all gated behind it on
glibc/Debian. macOS is permissive without; the landing Docker
build needed these for linux/amd64. Adds <strings.h> for
strcasecmp.
- Refactored slot semantics in el_runtime.c (already in tree from
the morning ARC commit): magic-tagged ElHeader at offset 0,
ElList/ElMap with separate elems/keys/values payload allocations,
el_list_append and el_map_set mutate-in-place when refcount<=1
and copy-on-write when shared.
Self-host fixpoint reached at v3: elc → elc.c → cc → elc binary →
elc.c reproduced byte-for-byte. dist/platform/elc and dist/platform/elc.c
updated. The codegen.el and elc-combined.el changes are mirror-edits;
both flow through the bootstrap chain to keep self-hosting clean.