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lib: io.handle union + seeker + handle-typed read/write/close/seek dispatch (#5)

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Ports ref/hare/io handle.ha: a handle is (file | *stream); ww stream is already *vtable (#94 collapse) so the payload is (file | stream). file=i32 (Hare int is 32-bit, ww int is 8B word -- width-faithful, USER-ruled). read/write/close/seek/tell match on the handle: file-arm to os.read/write/close/lseek (os plays Hare sys role), stream-arm to the unchanged st_* vtable bodies; seeker is the 4th vtable slot (copier deferred). On a file-arm syscall error the stub returns errors.unsupported with a #199b marker -- faithful errno to io.error needs io.error to spread ...errors.error (#204/#199b-blocked); only the error value is lossy until then, the type stays faithful. Regenerates w6c/wwdump combined.ww.
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Hojun-Cho
2026-05-31 17:30:55 +09:00
parent 39292b3c47
commit 06c00e0e1b
6 changed files with 772 additions and 18 deletions
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7
Makefile
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@@ -329,6 +329,7 @@ TESTS = $(BIN)/test_smoke $(BIN)/test_lex $(BIN)/test_parse $(BIN)/test_check \
$(BIN)/test_isas_spread_variant \
$(BIN)/test_tagged_widen_named_variant \
$(BIN)/test_io_vtable_run \
$(BIN)/test_io_handle_run \
$(BIN)/test_memio_vstream_run \
$(BIN)/test_fmt_vstream_run \
$(BIN)/test_fmt_vstream_mods_run \
@@ -707,6 +708,12 @@ $(BIN)/test_io_vtable_run: test/wcc/775_io_vtable_run.c \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_io_handle_run: test/wcc/791_io_handle_run.c \
$(BIN)/ww $(BIN)/w6c $(BIN)/w6a $(BIN)/w6l \
$(BIN)/ww_ww $(BIN)/w6c_ww $(BIN)/w6a_ww $(BIN)/w6l_ww \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_memio_vstream_run: test/wcc/776_memio_vstream_run.c \
$(BIN)/ww $(BIN)/w6c $(BIN)/w6a $(BIN)/w6l \
$(BIN)/ww_ww $(BIN)/w6c_ww $(BIN)/w6a_ww $(BIN)/w6l_ww \