test: migrate 944_alias_def_addr to @test + runww reject, retire C twin (fold-3)
#88 alias/def/address-of family: 5 value rows -> test/lang/alias_def_addr_test.ww (primitive-only asserts), 1 reject (str-def-non-addressable, shared body 'cannot take address of non-addressable def') -> runww //ww:error dual-stage carrier. byteid floor 53->54.
This commit is contained in:
@@ -1,321 +0,0 @@
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/*
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* 944_alias_def_addr_run — #5 alias arc F2a batch 3 c2 (task #88):
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* defisaddressable (cgen.ww:3089) keyed the array leg on the UNCHASED
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* syntactic dtnode (N_TARRAY) — `&D` where D is a def whose declared
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* type is an ALIAS of an array missed the gate and fell to the rule-7
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* loud error "cannot take address of non-addressable def". LOUD class,
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* but the gate was lying: the ww def-array DATA emitter already peels
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* TY_NAMED transitively (emitdefconstants' array arm), so the alias
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* def HAS a DATA symbol (probe-observed: `DATA main.D(SB)` emitted
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* byte-id by both stages for the &-less program). Gate-only fix —
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* tichase(dtn.type_) == TY_ARRAY — restores gate == emission set; no
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* emitter twin. cstage registers def arrays via the g-fold-G1 chased
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* let_isarray and gates TK_AMP on def_isarraydef (cgen.c:3975-3977),
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* so cs is the runtime-correct reference (observed 0 on every row).
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*
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* row | shape | want
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* ------------+----------------------------------------------+-----
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* def_ctrl | plain [3]int def; &D; read via ptr | 0
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* def_l1 | 1-level alias def array, &D | 0
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* def_l2 | 2-level, readback via cast-to-base ptr | 0
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* def_order | type decl AFTER the def | 0
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* def_struct | alias-typed STRUCT def, &D (defvarstructinfo |
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* | leg already chased — held throughout) | 0
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* def_nonaddr | str def, &D -> rule-7 loud error | LOUD
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*
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* Pre-fix: def_l1/def_l2/def_order ww LOUD / cs 0; controls 0/0.
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* Post-fix: every value row 0/0 byte-id; def_nonaddr STAYS LOUD both
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* stages with a BYTE-IDENTICAL diagnostic (the error-path pin —
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* genuinely symbol-less defs must keep firing the rule-7 tail, and
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* the tail's text is itself a convergence surface).
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*
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* def_l2's readback casts to the BASE array ptr (`p: *[3]int`) before
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* the deref-index: the natural `(*p)[2]` spelling over a 2-LEVEL-alias
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* pointee trips a SEPARATE pre-existing CSTAGE double-deref (spurious
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* MOVQ (AX),AX, SEGV; def-INDEPENDENT — a local twin reproduces it;
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* ww runs it correctly) — filed as task #93 (#85 type_unwrap kin, F2b
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* OUT territory), deliberately not pinned here.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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static int
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runwait(const char *cmd)
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{
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int rc = system(cmd);
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if (rc == -1) return -1;
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if (WIFEXITED(rc)) return WEXITSTATUS(rc);
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return -1;
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}
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static int
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slurp_eq(const char *a, const char *b)
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{
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FILE *fa = fopen(a, "rb");
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FILE *fb = fopen(b, "rb");
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if (!fa || !fb) { if (fa) fclose(fa); if (fb) fclose(fb); return -1; }
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int rc = 0;
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for (;;) {
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int ca = fgetc(fa), cb = fgetc(fb);
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if (ca != cb) { rc = -1; break; }
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if (ca == EOF) break;
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}
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fclose(fa); fclose(fb);
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return rc;
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}
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/* mustfail: build must FAIL on BOTH drivers (the error-path pin);
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* such rows trade the asm byte-id check for a DIAGNOSTIC byte-id
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* check (w6c vs w6c_ww stderr compared byte-for-byte). */
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struct row { const char *label; const char *src; int want; int mustfail; };
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static const struct row rows[] = {
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{ "def_ctrl",
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"package main;\n"
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"def D: [3]int = [1000: int, 2000: int, 3000: int];\n"
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"export fn main() i32 = {\n"
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" let p: *[3]int = &D;\n"
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" if ((*p)[2] != 3000) { return 1; };\n"
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" return 0;\n"
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"};\n", 0, 0 },
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{ "def_l1",
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"package main;\n"
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"type arr = [3]int;\n"
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"def D: arr = [1000: int, 2000: int, 3000: int];\n"
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"export fn main() i32 = {\n"
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" let p: *arr = &D;\n"
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" if ((*p)[2] != 3000) { return 1; };\n"
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" return 0;\n"
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"};\n", 0, 0 },
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/* cast-to-base readback — see the header note on task #93. */
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{ "def_l2",
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"package main;\n"
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"type arr = [3]int;\n"
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"type arr2 = arr;\n"
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"def D: arr2 = [1000: int, 2000: int, 3000: int];\n"
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"export fn main() i32 = {\n"
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" let p: *arr2 = &D;\n"
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" let q: *[3]int = p: *[3]int;\n"
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" if ((*q)[2] != 3000) { return 1; };\n"
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" return 0;\n"
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"};\n", 0, 0 },
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{ "def_order",
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"package main;\n"
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"def D: arr = [1000: int, 2000: int, 3000: int];\n"
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"export fn main() i32 = {\n"
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" let p: *arr = &D;\n"
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" if ((*p)[2] != 3000) { return 1; };\n"
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" return 0;\n"
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"};\n"
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"type arr = [3]int;\n", 0, 0 },
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/* PREMISE-5 leg: defvarstructinfo already walks aliaslookup
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* transitively — held before and after. */
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{ "def_struct",
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"package main;\n"
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"type pt = struct { x: int, y: int };\n"
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"type pt2 = pt;\n"
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"def D: pt2 = pt2{x=1000, y=2000};\n"
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"export fn main() i32 = {\n"
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" let p: *pt2 = &D;\n"
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" if (p.y != 2000) { return 1; };\n"
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" return 0;\n"
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"};\n", 0, 0 },
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/* str def has no DATA symbol — the rule-7 loud tail must keep
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* firing (error-path pin). */
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{ "def_nonaddr",
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"package main;\n"
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"def S: str = \"hello\";\n"
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"export fn main() i32 = {\n"
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" let p = &S;\n"
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" return 0;\n"
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"};\n", 0, 1 },
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};
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static int
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run_driver(const char *driver, const struct row *r, int i)
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{
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char src[96], tmpdir[96], errf[96], cmd[1024];
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snprintf(src, sizeof src, "/tmp/ada_%d_%d.ww", getpid(), i);
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snprintf(tmpdir, sizeof tmpdir, "/tmp/ada_%d_d_%d", getpid(), i);
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snprintf(errf, sizeof errf, "/tmp/ada_%d_e_%d", getpid(), i);
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FILE *f = fopen(src, "wb");
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if (!f) return -1;
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fputs(r->src, f);
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fclose(f);
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mkdir(tmpdir, 0755);
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snprintf(cmd, sizeof cmd,
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"cd %s && timeout 20 %s build %s >/dev/null 2>%s",
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tmpdir, driver, src, errf);
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int brc = runwait(cmd);
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if (r->mustfail) {
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unlink(src); unlink(errf); rmdir(tmpdir);
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if (brc == 0) {
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fprintf(stderr, "row[%s]: %s built but must fail "
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"loud\n", r->label, driver);
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return 1;
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}
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return 0;
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}
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if (brc != 0) {
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fprintf(stderr, "row[%s]: build via %s failed\n",
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r->label, driver);
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unlink(src); unlink(errf); rmdir(tmpdir);
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return -1;
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}
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const char *base = strrchr(src, '/');
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base = base ? base + 1 : src;
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char outbin[256];
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snprintf(outbin, sizeof outbin, "%s/%s", tmpdir, base);
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char *dot = strrchr(outbin, '.');
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if (dot && strcmp(dot, ".ww") == 0) *dot = '\0';
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int got = runwait(outbin);
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unlink(src); unlink(outbin); unlink(errf); rmdir(tmpdir);
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if (got != r->want) {
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fprintf(stderr, "row[%s]: %s exit %d, want %d\n",
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r->label, driver, got, r->want);
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return 1;
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}
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return 0;
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}
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static int
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asm_byte_identical(const char *bin, const struct row *r, int i)
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{
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char src[96], cs[96], ws[96], cmd[1024];
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snprintf(src, sizeof src, "/tmp/ada_asm_%d_%d.ww", getpid(), i);
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snprintf(cs, sizeof cs, "/tmp/ada_asm_%d_%d_c.s", getpid(), i);
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snprintf(ws, sizeof ws, "/tmp/ada_asm_%d_%d_w.s", getpid(), i);
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FILE *f = fopen(src, "wb");
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if (!f) return -1;
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fputs(r->src, f);
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fclose(f);
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snprintf(cmd, sizeof cmd, "%s/w6c -o %s %s 2>/dev/null", bin, cs, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: w6c errored\n", r->label);
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unlink(src);
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return -1;
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}
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snprintf(cmd, sizeof cmd, "%s/w6c_ww -o %s %s 2>/dev/null",
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bin, ws, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: w6c_ww errored\n", r->label);
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unlink(src); unlink(cs);
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return -1;
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}
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int rc = slurp_eq(cs, ws);
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if (rc != 0)
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fprintf(stderr, "row[%s]: cstage vs wwstage asm differs\n",
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r->label);
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unlink(src); unlink(cs); unlink(ws);
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return rc;
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}
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/* Error-path twin of asm_byte_identical: both compilers must REJECT
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* the row and emit the same diagnostic bytes (an empty stderr is a
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* fail — a silent reject is not the rule-7 loud tail). */
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static int
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diag_byte_identical(const char *bin, const struct row *r, int i)
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{
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char src[96], cs[96], ws[96], ce[96], we[96], cmd[1024];
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snprintf(src, sizeof src, "/tmp/ada_diag_%d_%d.ww", getpid(), i);
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snprintf(cs, sizeof cs, "/tmp/ada_diag_%d_%d_c.s", getpid(), i);
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snprintf(ws, sizeof ws, "/tmp/ada_diag_%d_%d_w.s", getpid(), i);
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snprintf(ce, sizeof ce, "/tmp/ada_diag_%d_%d_c.e", getpid(), i);
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snprintf(we, sizeof we, "/tmp/ada_diag_%d_%d_w.e", getpid(), i);
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FILE *f = fopen(src, "wb");
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if (!f) return -1;
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fputs(r->src, f);
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fclose(f);
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int rc = 0;
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snprintf(cmd, sizeof cmd, "%s/w6c -o %s %s 2>%s", bin, cs, src, ce);
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if (runwait(cmd) == 0) {
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fprintf(stderr, "row[%s]: w6c accepted but must fail loud\n",
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r->label);
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rc = -1;
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}
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snprintf(cmd, sizeof cmd, "%s/w6c_ww -o %s %s 2>%s",
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bin, ws, src, we);
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if (rc == 0 && runwait(cmd) == 0) {
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fprintf(stderr, "row[%s]: w6c_ww accepted but must fail "
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"loud\n", r->label);
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rc = -1;
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}
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if (rc == 0) {
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FILE *fe = fopen(ce, "rb");
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if (!fe || fgetc(fe) == EOF) {
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fprintf(stderr, "row[%s]: empty diagnostic\n",
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r->label);
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rc = -1;
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}
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if (fe) fclose(fe);
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}
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if (rc == 0) {
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rc = slurp_eq(ce, we);
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if (rc != 0)
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fprintf(stderr, "row[%s]: cstage vs wwstage "
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"diagnostic differs\n", r->label);
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}
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unlink(src); unlink(cs); unlink(ws); unlink(ce); unlink(we);
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return rc;
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}
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int
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main(void)
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{
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const char *bin = getenv("BIN");
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if (!bin) bin = "out/bin";
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char absbin[2080];
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if (bin[0] != '/') {
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char cwd[1024];
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if (getcwd(cwd, sizeof cwd) == NULL) return 1;
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snprintf(absbin, sizeof absbin, "%s/%s", cwd, bin);
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bin = absbin;
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}
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char cdrv[2120], wdrv[2120];
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snprintf(cdrv, sizeof cdrv, "%s/ww", bin);
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snprintf(wdrv, sizeof wdrv, "%s/ww_ww", bin);
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int n = (int)(sizeof rows / sizeof rows[0]);
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int total = 0, fail = 0;
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for (int i = 0; i < n; i++) {
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total++;
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if (run_driver(cdrv, &rows[i], i) != 0) fail++;
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}
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if (access(wdrv, X_OK) == 0) {
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for (int i = 0; i < n; i++) {
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total++;
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if (run_driver(wdrv, &rows[i], i) != 0) fail++;
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}
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for (int i = 0; i < n; i++) {
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total++;
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if (rows[i].mustfail) {
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if (diag_byte_identical(bin, &rows[i], i)
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!= 0) fail++;
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continue;
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}
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if (asm_byte_identical(bin, &rows[i], i) != 0) fail++;
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}
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}
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if (fail) {
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fprintf(stderr, "alias_def_addr: %d/%d checks failed\n",
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fail, total);
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return 1;
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}
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printf("alias_def_addr: %d/%d ok\n", total, total);
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return 0;
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}
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15
test/wcc/data/alias_def_addr_nonaddr/case.ww
Normal file
15
test/wcc/data/alias_def_addr_nonaddr/case.ww
Normal file
@@ -0,0 +1,15 @@
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//ww:error "cannot take address of non-addressable def"
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// Lifted from test/wcc/944_alias_def_addr_run.c reject row "def_nonaddr"
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// (#88/#149/#147/rule-7): a `def S: str` is inlined and has NO DATA symbol,
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// so `&S` is not addressable and MUST loud-fail in both stages, not emit a
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// wild deref. The substring is the shared diagnostic body — byte-identical on
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// both stages (no file:line, no "ww: " prefix — the prefix differs cs vs ww
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// only by being emitted, the body is shared verbatim). This is the error-path
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// pin for the #88 alias-def address-of family: the gate fix must keep firing
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// the rule-7 tail for genuinely symbol-less defs.
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package main;
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def S: str = "hello";
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export fn main() i32 = {
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let p = &S;
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return 0;
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};
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Reference in New Issue
Block a user