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wcc/check: GAP-A .cap-on-array loud-reject; .ptr-on-array ratified valid (#12)

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.cap on a fixed-size array is invalid (Hare has no capacity-read; arrays
can't grow) -> both stages now loud-reject at the checker. wwstage was
silently returning frame garbage for a local array's .cap; cstage typed
it then vaguely rejected at use. Unified to one early checker reject with
an identical diagnostic both stages.

.ptr on a fixed-size array is ratified VALID: array.ptr is &A[0], a
sanctioned ww spelling divergence from Hare; see task #13. The toolchain
already relies on it in 14 backing-pointer sites. WHY-doc added at both
checker .ptr-on-array sites. The def-global .ptr cgen base-selection bug
(#11) is a separate following commit.

Valid-program asm unchanged (byte-id 990-997 8/8); w6c/w6c_ww binaries
move (checker code changed). test/wcc/817 table-driven, model 684.
This commit is contained in:
Hojun-Cho
2026-06-08 17:22:09 +09:00
parent 7b0e09e065
commit 1c87881bda
6 changed files with 373 additions and 0 deletions
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7
Makefile
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@@ -243,6 +243,7 @@ TESTS = $(BIN)/test_smoke $(BIN)/test_lex $(BIN)/test_parse $(BIN)/test_check \
$(BIN)/test_arr_strslice_elem \
$(BIN)/test_arr_tagged_elem \
$(BIN)/test_arr_infer_len \
$(BIN)/test_arr_cap_reject \
$(BIN)/test_def_arr_infer_len \
$(BIN)/test_def_arr_len \
$(BIN)/test_slice_str_global_zero \
@@ -635,6 +636,12 @@ $(BIN)/test_arr_infer_len: test/wcc/684_arr_infer_len.c $(BIN)/ww \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_arr_cap_reject: test/wcc/817_arr_cap_reject.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_def_arr_infer_len: test/wcc/814_def_arr_infer_len.c $(BIN)/ww \
$(BIN)/w6c $(BIN)/w6a $(BIN)/w6l \
$(BIN)/ww_ww $(BIN)/w6c_ww $(BIN)/w6a_ww $(BIN)/w6l_ww \