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wcc: stamp N_IDENT-callee destructure bindings in checker (#121)

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resolvewalk N_MLET arm distributes the N_IDENT-callee rhs return-tuple
element types onto unannotated bindings (the A-narrow slice). Byte-id-
neutral — cgen still classifies structurally, stamps inert until the
exprfloatkind collapse. N_DOT-callee destructure deferred to #16/#17.
Prereq for the #121 collapse (commits 2/3).
This commit is contained in:
Hojun-Cho
2026-05-26 17:27:44 +09:00
parent 7d7ed964b0
commit 98e166504f
5 changed files with 201 additions and 5 deletions
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27
test/wcc/954_tuprecv_run.c
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@@ -55,7 +55,7 @@ runwait(const char *cmd)
return -1;
}
struct row { const char *label; const char *src; int want_exit; };
struct row { const char *label; const char *src; int want_exit; int chk_stamped; };
static const struct row rows[] = {
/* mixed (f64, i64): f=2.5 -> i32 2, i=7 -> i32 7, 2+7 = 9. The
@@ -105,7 +105,7 @@ static const struct row rows[] = {
"export fn main() i32 = {\n"
"\tlet (f, i) = mk();\n"
"\treturn (f: i32) + (i: i32);\n"
"};\n", 9 },
"};\n", 9, 1 },
/* CONTROL — wide/str element single-var (i64, str) is a 32B tuple
* handled by the separate 32B receive branch; the fix's sz==16 gate
* excludes it, so it stays byte-id pre- and post-fix. t.0 = 7. */
@@ -241,6 +241,29 @@ main(void)
"byte-id violation)\n", rows[i].label);
fail++;
}
/* (c) #121 A-narrow stamp gate: the un-annotated float-
* destructure binding must now carry a checker type stamp, so
* w6c_ww emits no `asserttyped:` diagnostic. Non-vacuous —
* pre-stamp (HEAD) w6c_ww fires asserttyped on the f64 binding
* ident (nil n.type_). */
if (rows[i].chk_stamped) {
char errf[80];
snprintf(errf, sizeof errf,
"/tmp/wwtup_%d_%d_err.txt", getpid(), i);
snprintf(cmd, sizeof cmd,
"%s -o /dev/null %s 2>%s", w6c_ww, src, errf);
runwait(cmd);
snprintf(cmd, sizeof cmd,
"grep -q asserttyped %s", errf);
if (runwait(cmd) == 0) {
fprintf(stderr, "row[%s]: w6c_ww emitted "
"asserttyped (destructure binding "
"unstamped)\n", rows[i].label);
fail++;
}
unlink(errf);
}
unlink(src); unlink(cs_s); unlink(ws_s);
}