Hojun-Cho
ce3a25a0b4
The wcc test drivers ran `ww build <bare-/tmp src>` with no -o, so the compiler's <stem>.sepwork scratch landed beside the source and was never cleaned: unbounded /tmp growth (2195 stale dirs observed) that fills tmpfs and fabricates phantom test failures + silent harness aborts, and for in-repo fixture builds leaked .sepwork into the tracked tree. Each leaking build now writes its source + output inside a per-invocation tmpdir, passes -o <tmpdir>/<stem> so the .sepwork lands inside it, and rm -rf's the tmpdir on every exit path -- including fopen-fail and the expected-fail reject builds (scratch is mkdir'd before the build can fail). `ww run` and explicit-`-o`/byte-id helpers are left as-is; the 990/993 byte-id comparison logic is byte-for-byte unchanged. Two items filed separately (this commit holds the no-Makefile / no-main.c rail): - #13: a stale <src>.s byte-id readback (749) silently no-ops since separate-compile emits .s to <ostem>.sepwork/__root.s; documented inline. - #14: build-system Makefile recipes build selfhost/cmd/*/main.ww with no -o and leak main.sepwork in-tree (bounded, gitignored; own commit). One concern -- sepwork leak hygiene -- across 228 drivers; uniform transform applied per-file and two-round reviewed. make test: all 402 passed, zero net-new /tmp scratch, zero test-driven in-repo .sepwork.
345 lines
11 KiB
C
345 lines
11 KiB
C
/*
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* 957_assert_builtin_run — runtime + byte-id + reject net for #58: the
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* `assert(cond[, msg])` / `abort([msg])` builtins (the harec
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* EXPR_ASSERT family) in BOTH stages.
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*
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* Root: wwstage had NO builtin intercept for assert/abort — the checker
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* left the call untyped (asserttyped gate 4 deliberately skipped it)
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* and cgcall fell through to the regular call path, emitting
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* `CALL assert(SB)` for a symbol that exists nowhere → link-fail.
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* cstage lowers both inline via rt_abort (checker tags the callee
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* ty_err at cmd/wcc/check.c:1536-1572, cgen keys on the tag at
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* cmd/w6c/cgen.c:6618-6663). The fix mirrors that tag-then-lower pair
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* into check.ww exprtype N_CALL + cgenexpr.ww cgcall.
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*
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* THIS TEST MUST CATCH A WWSTAGE-ONLY DIVERGENCE, so every positive
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* row carries both dimensions (modelled on 953/954):
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* (a) cstage `ww build` + run, asserting the exit code AND the
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* runtime stderr (rt_abort writes msg verbatim; a NULL want_msg
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* pins the (NULL, 0) no-msg shape as EMPTY stderr).
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* (b) w6c vs w6c_ww `.s` cmp — FAILS if the stages diverge. On
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* pre-fix master every assert/abort row diverges (wwstage emits
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* the bogus CALL).
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*
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* Shadow rows pin the gate's other half: a user fn named assert/abort
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* (same-module or cross-module, the #45 shape) suppresses the builtin
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* and routes the regular call path in BOTH stages. The cross-module
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* row pins the CURRENT flat-scope semantics — if the #45 root (filed
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* as task #14: cross-module bare resolution of a foreign decl) is
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* later ruled a reject, that row flips to expect_fail with it.
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*
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* Reject rows pin the checker mirror ON CONTENT: non-bool cond /
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* non-str msg / arity overflows fail the build in BOTH stages with the
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* shared diagnostic substring (cstage prefixes pos, wwstage's cerr is
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* bare — strstr covers both). The alias-cond row pins the rule-10
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* down-alignment: cstage compares ty_bool by identity (check.c:1560),
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* so wwstage must not alias-peel either (widening = task #5 alias arc).
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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 long
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slurp(const char *path, char *buf, long cap)
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{
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FILE *f = fopen(path, "rb");
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if (!f) return -1;
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long n = (long)fread(buf, 1, cap - 1, f);
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fclose(f);
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if (n < 0) n = 0;
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buf[n] = '\0';
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return n;
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}
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struct row {
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const char *label;
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const char *src;
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int want_exit;
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const char *want_msg; /* run stderr must contain this; NULL = must be empty */
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int expect_fail; /* 1 = BOTH stages must reject; want_exit/want_msg ignored */
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const char *diag; /* reject rows: both stages' stderr must contain this */
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};
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static const struct row rows[] = {
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/* Passing asserts (bare and with msg) fall through; exit 42. */
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{ "pass",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tassert(1 + 1 == 2);\n"
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"\tassert(2 > 1, \"never fires\");\n"
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"\treturn 42;\n"
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"};\n", 42, NULL, 0, NULL },
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/* Failing assert without msg: rt_abort(NULL, 0), exit 1, silent. */
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{ "fail_nomsg",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tassert(1 == 2);\n"
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"\treturn 0;\n"
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"};\n", 1, NULL, 0, NULL },
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/* Failing assert with msg: rt_abort(ptr, len) writes it to stderr. */
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{ "fail_msg",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tassert(false, \"assert fired\\n\");\n"
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"\treturn 0;\n"
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"};\n", 1, "assert fired", 0, NULL },
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/* abort with msg: unconditional rt_abort, exit 1, msg on stderr. */
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{ "abort_msg",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tabort(\"boom\\n\");\n"
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"\treturn 0;\n"
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"};\n", 1, "boom", 0, NULL },
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/* bare abort(): rt_abort(NULL, 0), exit 1, silent. */
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{ "abort_bare",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tabort();\n"
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"\treturn 0;\n"
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"};\n", 1, NULL, 0, NULL },
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/* assert inside an IMPORTED module's fn (single-file multi-package
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* form, like 953) — the regex fold-5 consumer shape. */
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{ "imported_mod",
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"package m;\n"
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"export fn f() i32 = {\n"
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"\tassert(3 > 2, \"m.f invariant\");\n"
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"\treturn 42;\n"
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"};\n"
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"package main;\n"
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"import m;\n"
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"export fn main() i32 = { return m.f(); };\n", 42, NULL, 0, NULL },
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/* SHADOW control, same-module: a user fn `assert` suppresses the
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* builtin; the call routes the regular path (no-op fn), so the
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* false cond does NOT abort. Exit 7 proves the user fn ran. */
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{ "shadow_samemod",
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"package main;\n"
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"let g: i32 = 0;\n"
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"fn assert(b: bool) void = { g = 7; };\n"
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"export fn main() i32 = {\n"
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"\tassert(false);\n"
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"\treturn g;\n"
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"};\n", 7, NULL, 0, NULL },
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/* SHADOW control, cross-module (#45 shape, task #14): a foreign
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* exported fn `assert` in the flat scope also suppresses the
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* builtin; bare `assert(false, ...)` binds it and does NOT abort. */
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{ "shadow_xmod",
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"package m;\n"
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"export fn assert(b: bool, msg: str) void = { };\n"
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"package main;\n"
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"import m;\n"
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"export fn main() i32 = {\n"
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"\tassert(false, \"routed to m.assert\");\n"
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"\treturn 42;\n"
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"};\n", 42, NULL, 0, NULL },
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/* Checker rejects, mirrored both stages — pinned on diagnostic
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* CONTENT, not just a non-zero exit. */
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{ "reject_nonbool",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tassert(\"not a bool\");\n"
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"\treturn 0;\n"
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"};\n", 0, NULL, 1, "assert: cond must be bool" },
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/* Alias-of-bool cond: ty_bool identity in cstage (check.c:1560)
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* → reject; wwstage aligned down (no resolvealias peel). */
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{ "reject_alias_cond",
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"package main;\n"
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"type myb = bool;\n"
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"export fn main() i32 = {\n"
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"\tlet b: myb = true;\n"
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"\tassert(b);\n"
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"\treturn 0;\n"
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"};\n", 0, NULL, 1, "assert: cond must be bool" },
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{ "reject_assert_arity",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tassert(true, \"m\", \"extra\");\n"
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"\treturn 0;\n"
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"};\n", 0, NULL, 1, "assert: at most two args" },
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{ "reject_abort_nonstr",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tabort(42);\n"
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"\treturn 0;\n"
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"};\n", 0, NULL, 1, "abort: message must be str" },
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{ "reject_abort_arity",
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"package main;\n"
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"export fn main() i32 = {\n"
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"\tabort(\"a\", \"b\");\n"
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"\treturn 0;\n"
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"};\n", 0, NULL, 1, "abort: at most one arg" },
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{ NULL, NULL, 0, NULL, 0, NULL }
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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);
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int 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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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[1024];
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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 w6c[1100], w6c_ww[1100];
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snprintf(w6c, sizeof w6c, "%s/w6c", bin);
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snprintf(w6c_ww, sizeof w6c_ww, "%s/w6c_ww", bin);
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if (access(w6c_ww, X_OK) != 0) {
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fprintf(stderr, "assert_builtin: w6c_ww missing — cannot run "
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"the cs==ww byte-id gate (the whole point of #58)\n");
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return 1;
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}
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char errbuf[4096];
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int n = 0, fail = 0;
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for (int i = 0; rows[i].src; i++, n++) {
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char tmpdir[64], src[128], errf[128], rmcmd[160];
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snprintf(tmpdir, sizeof tmpdir, "/tmp/wwasrt_%d_d_%d",
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getpid(), i);
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mkdir(tmpdir, 0755);
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snprintf(src, sizeof src, "%s/wwasrt_%d_%d.ww",
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tmpdir, getpid(), i);
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snprintf(errf, sizeof errf, "%s/wwasrt_%d_%d.err",
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tmpdir, getpid(), i);
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snprintf(rmcmd, sizeof rmcmd, "rm -rf %s", tmpdir);
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FILE *f = fopen(src, "wb");
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if (f == NULL) { runwait(rmcmd); fail++; continue; }
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fputs(rows[i].src, f);
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fclose(f);
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if (rows[i].expect_fail) {
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char cmd[2048];
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const char *stage[2] = { w6c, w6c_ww };
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const char *sname[2] = { "cstage", "wwstage" };
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for (int s = 0; s < 2; s++) {
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snprintf(cmd, sizeof cmd,
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"%s -o /dev/null %s 2>%s",
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stage[s], src, errf);
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if (runwait(cmd) == 0) {
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fprintf(stderr, "row[%s]: %s accepted, "
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"expected reject\n",
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rows[i].label, sname[s]);
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fail++;
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continue;
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}
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if (slurp(errf, errbuf, sizeof errbuf) < 0 ||
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strstr(errbuf, rows[i].diag) == NULL) {
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fprintf(stderr, "row[%s]: %s rejected "
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"without \"%s\" on stderr\n",
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rows[i].label, sname[s],
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rows[i].diag);
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fail++;
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}
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}
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runwait(rmcmd);
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continue;
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}
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/* (a) cstage build + run in a scratch dir. */
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char outbin[128];
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snprintf(outbin, sizeof outbin, "%s/wwasrt_%d_%d",
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tmpdir, getpid(), i);
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char cmd[2048];
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snprintf(cmd, sizeof cmd, "%s/ww build -o %s %s "
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">/dev/null 2>&1", bin, outbin, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: cstage build failed\n",
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rows[i].label);
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fail++;
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runwait(rmcmd);
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continue;
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}
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snprintf(cmd, sizeof cmd, "%s >/dev/null 2>%s", outbin, errf);
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int got = runwait(cmd);
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if (got != rows[i].want_exit) {
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fprintf(stderr, "row[%s]: cstage exit %d, want %d\n",
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rows[i].label, got, rows[i].want_exit);
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fail++;
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}
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long elen = slurp(errf, errbuf, sizeof errbuf);
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if (rows[i].want_msg) {
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if (elen < 0 || strstr(errbuf, rows[i].want_msg) == NULL) {
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fprintf(stderr, "row[%s]: run stderr missing "
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"\"%s\"\n", rows[i].label,
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rows[i].want_msg);
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fail++;
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}
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} else if (elen != 0) {
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fprintf(stderr, "row[%s]: run stderr not empty "
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"(rt_abort no-msg must be (NULL, 0))\n",
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rows[i].label);
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fail++;
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}
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/* (b) cs==ww byte-id gate. */
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char cs_s[128], ws_s[128];
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snprintf(cs_s, sizeof cs_s, "%s/wwasrt_%d_%d_cs.s",
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tmpdir, getpid(), i);
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snprintf(ws_s, sizeof ws_s, "%s/wwasrt_%d_%d_ww.s",
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tmpdir, getpid(), i);
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snprintf(cmd, sizeof cmd, "%s -o %s %s 2>/dev/null",
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w6c, cs_s, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: w6c failed\n", rows[i].label);
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fail++; runwait(rmcmd); continue;
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}
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snprintf(cmd, sizeof cmd, "%s -o %s %s 2>/dev/null",
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w6c_ww, ws_s, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: w6c_ww failed\n",
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rows[i].label);
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fail++; runwait(rmcmd); continue;
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}
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if (slurp_eq(cs_s, ws_s) != 0) {
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fprintf(stderr,
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"row[%s]: cstage/wwstage .s DIFFER (rule-10 "
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"byte-id violation)\n", rows[i].label);
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fail++;
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}
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runwait(rmcmd);
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}
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if (fail) {
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fprintf(stderr, "%d/%d assert-builtin tests failed\n",
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fail, n);
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return 1;
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}
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printf("assert_builtin: %d/%d ok (cstage run+stderr + cs==ww byte-id + reject diags)\n",
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n, n);
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return 0;
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}
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