Hojun-Cho/ww

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Author	SHA1	Message	Date
Hojun-Cho	a651883c14	lib/strings+test: Hare port (dup/concat/trim/index/contains/has{pre,suf}fix/compare/utf8) Hare-faithful index/predicate family per ref/hare/strings/{dup, concat,trim,index,suffix,contains,compare,utf8}.ha. Non-variadic subset (concat 2-arg, trim single-rune, contains single-needle) pending task #16 — cstage variadic-pack drops .len on multi-field element types; ship the Hare-faithful single-arg shape now, file the variadic upgrade as follow-up. `sub` follow-up filed as #29 (commit 2 with iterator + utf8.chars relocation). Surface: dup, concat, trim/trimprefix/trimsuffix (single rune), hasprefix, hassuffix (both with (str\|rune) sum needle), byteindex, rbyteindex (both with (str\|rune) sum needle), contains (single str needle), compare, toutf8, fromutf8_unsafe, runebytes helper. (str\|rune) match arms route the rune via utf8.encoderune into a [4]u8 scratch then bytes.index/rindex — drew-devault's directive for clean Hare-fidelity over invented ASCII-only rune-byte arms. byteindex / rbyteindex rune-arm semantic correction — corpus-coverage-blind unmask. Pre-existing impl scanned for `r: u8` (broken for all rune values >0x7F since strings.ww first landed; no caller exercised it). Replaced with utf8.encoderune- based scan via runebytes helper. Severity-marker: silent wrong-result for any non-ASCII rune needle, masked by zero in-tree callers until lib/strings + utf8 chain pulled the shape in. Build-system propagation: lib/strings depends transitively on lib/encoding/utf8 (via byteindex's rune arm). cmd/ww driver's locate_import_in (cmd/ww/main.c:85) walks `<dir>/<name>.ww` and `<dir>/<name>/<name>.ww` only — `use utf8;` doesn't find lib/encoding/utf8/utf8.ww without explicit `-I lib/encoding/utf8`. Propagated through 5 wwstage-tool Makefile targets + 7 test wrappers + test/wcc/995_self_rebuild.c sprintf lines. Task #17 filed for the principled resolver fix (subdir walk vs Hare's qualified `use encoding::utf8;` notation). This commit chain (#15 strings) surfaced 7 cgen bugs during landing: #16 cstage variadic-pack, #17 resolver nested-paths, #27 aliaslookup leaf-collision, #22 zero-init !void/void-alias let-decl, #15-cstage retscr SSoT name, #24 composite CALL return as composite arg, #28 N_DOT calleeparams. All blocking ones fixed (#16/#17 deferred-with-stopgap, others fixed in their respective commits). Pre-flight + stop-and-surface discipline held throughout — no workarounds shipped in stdlib. Tests: - 966_strings_run drives lib/strings/stringstest.ww via ww run. 15 @test fns: dup (alloc, multibyte), concat (empty, lopsided, multibyte), trim/ltrim/rtrim incl. 4-byte rune U+1D68A, hasprefix/hassuffix with (str\|rune) incl. multibyte, byteindex/rbyteindex both arms 1/2/3/4-byte rune coverage, compare. Cited from ref/hare/strings/+test.ha where vectors apply. 100/100 ok. 995_self_rebuild stays green (ww2==ww3==ww4 byte-id).	2026-05-18 10:28:44 +09:00
Hojun-Cho	e7f173cde0	lib+test: add log over io.stream sink Hare-shaped lib/log v1: logger vtable carrying one println slot, stdlogger forwarding to a io.stream, plus logger globals (silent / default / global), setlogger, lprintln / println, lfatal / fatal. Default sink is stderr through a private rt_syscall write callback; graduates with #17 (cgen mod-mangle for fn labels), at which point the rt_syscall stub disappears the same way fmt's will. Module-scope struct/pointer-literal init isn't constexpr in cstage emit_lets, so silent/default/global are wired lazily by ensureinit on the first exported-fn entry (lib/temp rnginit pattern). Callers that read the globals directly must call some lib/log fn first. Skipped this round: printfln / lprintfln / fatalf / lfatalf and the matching printfln vtable slot — they need a fmt {n}-placeholder parser that isn't shipped yet. fatal / lfatal's exit(255) arm has no test fixture (needs fork+wait for WEXITSTATUS); left as TODO. 971_log_run wraps the @test fixture under `ww run`, mirroring 970_fmt_run. make test: 54/54; bootstrap fixed-point (990-997) holds.	2026-05-15 14:05:55 +09:00

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SHA1

Message

Date

Hojun-Cho

a651883c14

lib/strings+test: Hare port (dup/concat/trim/index/contains/has{pre,suf}fix/compare/utf8)

Hare-faithful index/predicate family per ref/hare/strings/{dup,
concat,trim,index,suffix,contains,compare,utf8}.ha. Non-variadic
subset (concat 2-arg, trim single-rune, contains single-needle)
pending task #16 — cstage variadic-pack drops .len on multi-field
element types; ship the Hare-faithful single-arg shape now, file
the variadic upgrade as follow-up. `sub` follow-up filed as #29
(commit 2 with iterator + utf8.chars relocation).

Surface: dup, concat, trim/trimprefix/trimsuffix (single rune),
hasprefix, hassuffix (both with (str|rune) sum needle),
byteindex, rbyteindex (both with (str|rune) sum needle),
contains (single str needle), compare, toutf8, fromutf8_unsafe,
runebytes helper. (str|rune) match arms route the rune via
utf8.encoderune into a [4]u8 scratch then bytes.index/rindex —
drew-devault's directive for clean Hare-fidelity over invented
ASCII-only rune-byte arms.

byteindex / rbyteindex rune-arm semantic correction —
corpus-coverage-blind unmask. Pre-existing impl scanned for
`r: u8` (broken for all rune values >0x7F since strings.ww first
landed; no caller exercised it). Replaced with utf8.encoderune-
based scan via runebytes helper. Severity-marker: silent
wrong-result for any non-ASCII rune needle, masked by zero
in-tree callers until lib/strings + utf8 chain pulled the shape
in.

Build-system propagation: lib/strings depends transitively on
lib/encoding/utf8 (via byteindex's rune arm). cmd/ww driver's
locate_import_in (cmd/ww/main.c:85) walks `<dir>/<name>.ww` and
`<dir>/<name>/<name>.ww` only — `use utf8;` doesn't find
lib/encoding/utf8/utf8.ww without explicit `-I lib/encoding/utf8`.
Propagated through 5 wwstage-tool Makefile targets + 7 test
wrappers + test/wcc/995_self_rebuild.c sprintf lines. Task #17
filed for the principled resolver fix (subdir walk vs Hare's
qualified `use encoding::utf8;` notation).

This commit chain (#15 strings) surfaced 7 cgen bugs during
landing: #16 cstage variadic-pack, #17 resolver nested-paths,
#27 aliaslookup leaf-collision, #22 zero-init !void/void-alias
let-decl, #15-cstage retscr SSoT name, #24 composite CALL return
as composite arg, #28 N_DOT calleeparams. All blocking ones
fixed (#16/#17 deferred-with-stopgap, others fixed in their
respective commits). Pre-flight + stop-and-surface discipline
held throughout — no workarounds shipped in stdlib.

Tests:
  - 966_strings_run drives lib/strings/stringstest.ww via ww run.
    15 @test fns: dup (alloc, multibyte), concat (empty, lopsided,
    multibyte), trim/ltrim/rtrim incl. 4-byte rune U+1D68A,
    hasprefix/hassuffix with (str|rune) incl. multibyte,
    byteindex/rbyteindex both arms 1/2/3/4-byte rune coverage,
    compare. Cited from ref/hare/strings/+test.ha where vectors
    apply.

100/100 ok. 995_self_rebuild stays green (ww2==ww3==ww4 byte-id).

2026-05-18 10:28:44 +09:00

Hojun-Cho

e7f173cde0

lib+test: add log over io.stream sink

Hare-shaped lib/log v1: logger vtable carrying one println slot,
stdlogger forwarding to a *io.stream, plus *logger globals (silent
/ default / global), setlogger, lprintln / println, lfatal / fatal.
Default sink is stderr through a private rt_syscall write callback;
graduates with #17 (cgen mod-mangle for fn labels), at which point
the rt_syscall stub disappears the same way fmt's will.

Module-scope struct/pointer-literal init isn't constexpr in cstage
emit_lets, so silent/default/global are wired lazily by ensureinit
on the first exported-fn entry (lib/temp rnginit pattern). Callers
that read the globals directly must call some lib/log fn first.

Skipped this round: printfln / lprintfln / fatalf / lfatalf and the
matching printfln vtable slot — they need a fmt {n}-placeholder
parser that isn't shipped yet. fatal / lfatal's exit(255) arm has
no test fixture (needs fork+wait for WEXITSTATUS); left as TODO.

971_log_run wraps the @test fixture under `ww run`, mirroring
970_fmt_run. make test: 54/54; bootstrap fixed-point (990-997)
holds.

2026-05-15 14:05:55 +09:00

2 Commits