Files
ww/selfhost/cmd/ww/main.ww
Hojun-Cho b9c4562135 ww test: @test name-filter via fnmatch (both stages)
`ww test <file> <pattern>` runs only the @test fns whose names match the
fnmatch glob; no pattern runs all (byte-for-byte the pre-filter path);
zero matches prints "No tests run" and exits 0 (Hare ground truth
ref/hare/test/+test.ha:114-117). A pattern in directory mode is rejected
"ww test: pattern needs a single test file" (rc 2), identical wording in
both twins (cmd/ww/main.c do_test + selfhost/cmd/ww/main.ww dotest).

Mechanism (a): rt/start.s stashes argc/argv into rt_argc/rt_argv getters
(rt_envp twin shape, -T synth untouched so 990-997 byte-id holds);
lib/os.args() rebuilds the []str view, build-once-cached; lib/test/run.ww
imports fnmatch and filters av[1..] (argv[0] is the binary path). The
driver forwards the 2nd positional as argv[1] via fork/execv (cstage) /
procrun (wwstage) so glob metachars aren't shell-expanded.

os.args() is the first `alloc`-caller in the base os module, so os.ww now
imports rt — the `alloc` builtin's malloc lowers to rt_malloc only when
the rt binding is bundled (mirror lib/strings/strings.ww:30); without it a
plain `ww build` of any os-importing program links bare libc `malloc`
(undefined). os is bundled by ~every program, so this is load-bearing.

The lib/test floor rises os-only -> os+fnmatch+ascii+strings in every -T
build; the bundled `ascii` module vs a `@test fn ascii` collision that
exposed is closed by the preceding #30 promote commit. 989_test_filter
pins the full matrix on both twins byte-identically; 949 gains the
dir-mode reject row. (#17)
2026-06-11 04:51:17 +09:00

1742 lines
50 KiB
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// selfhost/cmd/ww/main.ww — port of cmd/ww/main.c.
//
// The user-facing driver. Plan 9 cc(1) / Hare hare(1) analogue:
//
// ww build foo.ww → w6c foo.ww > foo.s ; w6a foo.s > foo.o ;
// w6l -o foo foo.o libwwrt.a
// ww run foo.ww → build then exec
// ww version → print version
//
// Tool paths default to siblings of $0 so a fresh build runs out of
// out/bin/. Env-var overrides (WW_W6C / WW_W6A / WW_W6L / WW_LIB) are
// not yet supported in this port; the bootstrap doesn't need them.
package main;
import os;
import rt;
import strings;
// All path/string scratch buffers go on the runtime page allocator.
// One page is plenty for any path we build. PATH_MAX lives in lib/os
// (os.PATH_MAX: i32 = 4096) — the duplicate u64 def was dropped to close
// the cgen #127 mod-mangle attribution bug consumer per rule-7.
def CMD_MAX: u64 = 8192u64;
// cerr — bare stderr fragment writer for the driver's piecewise
// diagnostics. Tool-local (NOT a lib wrapper): messages are built from
// many fragments and we route through os.write to avoid libc stdio.
// .len replaces the error-prone hand-counted byte literals these sites
// carried. Lives here (the selfhost ww-driver build is a single main.ww;
// err.c's bare-message path is not ported into this tree).
fn cerr(m: str) void = {
os.write(2, m.ptr, m.len: u64);
};
// ---- C-string helpers --------------------------------------------------
fn cstrlen(p: *u8) u64 = {
let n: u64 = 0u64;
for (p[n] != 0u8) { n += 1u64; };
return n;
};
// pathstr — view a NUL-terminated *u8 as a str. Bridges the
// driver's argv-style *u8 paths to lib/os entrypoints (str
// post-task-#23).
fn pathstr(p: *u8) str = {
let r: str;
r.ptr = p;
r.len = cstrlen(p): i32;
return r;
};
fn cstreq(a: *u8, b: *u8) bool = {
return strings.compare(pathstr(a), pathstr(b)) == 0;
};
// cstreqlit — compare a NUL-terminated *u8 to a ww string literal.
fn cstreqlit(a: *u8, lit: str) bool = {
return strings.compare(pathstr(a), lit) == 0;
};
// memcpy
fn bytecpy(dst: *u8, src: *u8, n: u64) void = {
let i: u64 = 0u64;
for (i < n) {
dst[i] = src[i];
i += 1u64;
};
};
// Copy a NUL-terminated *u8 into dst starting at off; return the new
// offset (without writing a NUL).
fn cstrinto(dst: *u8, off: u64, src: *u8) u64 = {
let i: u64 = 0u64;
for (src[i] != 0u8) {
dst[off + i] = src[i];
i += 1u64;
};
return off + i;
};
// Same, but for a ww `str` (no NUL on the source side; we copy len bytes).
fn strinto(dst: *u8, off: u64, src: str) u64 = {
let n: i32 = src.len;
let i: i32 = 0;
for (i < n) {
let iu: u64 = i: u64;
dst[off + iu] = src[i];
i += 1;
};
let nu: u64 = n: u64;
return off + nu;
};
// Write a single byte, return new offset.
fn byteinto(dst: *u8, off: u64, c: u8) u64 = {
dst[off] = c;
return off + 1u64;
};
// NUL-terminate at off and return the same off (handy when passing the
// buffer to a syscall that expects a C-string).
fn cstrseal(dst: *u8, off: u64) void = {
dst[off] = 0u8;
};
// ---- Tool-path resolution ---------------------------------------------
// dirname-equivalent: copy argv[0] up to (but not including) the last
// '/' into dst, NUL-terminated. If no slash, write ".".
fn selfdirinto(dst: *u8, dstsz: u64, argv0: *u8) void = {
let n: u64 = cstrlen(argv0);
let cut: u64 = 0u64;
let i: u64 = 0u64;
for (i < n) {
if (argv0[i] == 47u8) { cut = i; }; // '/'
i += 1u64;
};
if (cut == 0u64) {
dst[0u64] = 46u8; // '.'
dst[1u64] = 0u8;
return;
};
if (cut + 1u64 >= dstsz) { cut = dstsz - 2u64; };
bytecpy(dst, argv0, cut);
dst[cut] = 0u8;
};
// Build "$dir/$name" (NUL-terminated) into a fresh page-sized buffer.
fn joinpath(dir: *u8, name: *u8) *u8 = {
let buf: []u8 = alloc([], (os.PATH_MAX: u64))!;
buf.len = os.PATH_MAX;
let off: u64 = cstrinto(buf.ptr, 0u64, dir);
off = byteinto(buf.ptr, off, 47u8);
off = cstrinto(buf.ptr, off, name);
cstrseal(buf.ptr, off);
return buf.ptr;
};
// Same, but the second component is a ww `str` literal.
fn joinpathlit(dir: *u8, name: str) *u8 = {
let buf: []u8 = alloc([], (os.PATH_MAX: u64))!;
buf.len = os.PATH_MAX;
let off: u64 = cstrinto(buf.ptr, 0u64, dir);
off = byteinto(buf.ptr, off, 47u8);
off = strinto(buf.ptr, off, name);
cstrseal(buf.ptr, off);
return buf.ptr;
};
// ---- Subprocess plumbing ----------------------------------------------
// procrun — fork, execve `path` with `argv` (NULL-terminated), wait.
// Returns the child's real exit code on clean exit, 1 on signal kill,
// -1 on fork/wait failure. Mirrors cmd/ww/main.c:do_run WEXITSTATUS:
// the build-step callers only test `!= 0`, so propagating the exact
// non-zero code leaves them unaffected while `dorun` reports the true
// program exit status (was collapsing every non-zero exit to 1; fix #16).
fn procrun(path: *u8, argv: **u8) i32 = {
let pid: i32 = os.fork();
if (pid < 0) {
cerr("ww: fork failed\n");
return -1;
};
if (pid == 0) {
os.execve(pathstr(path), argv, nil: **u8);
cerr("ww: execve failed\n");
os.exit(127);
};
let status: i32 = 0;
let r: i32 = os.wait4(pid, &status, 0i32, nil: *void);
if (r < 0) {
cerr("ww: wait4 failed\n");
return -1;
};
// Linux wait status: low byte = signal (0 if exited cleanly),
// next byte = exit code.
if ((status & 127i32) != 0) { return 1; };
let code: i32 = (status >> 8i32) & 255i32;
return code;
};
// ---- `use` resolution + source concatenation --------------------------
//
// Recursive expansion: for each `use IDENT;` we find at the top of
// `path`, resolve via the colon-separated `dirs`, expand the imported
// file first, then append our own bytes. Already-visited paths are
// skipped (linear scan; typical builds visit a handful of modules).
type strnode = struct {
s: str,
snext: *strnode,
};
type expctx = struct {
out: i32, // fd we're writing the combined source to
dirs: *u8, // ":"-separated search path (NUL-terminated)
visit: *strnode,
};
fn visitseen(c: *expctx, path: str) bool = {
let n: *strnode = c.visit;
for (n != nil) {
if (n.s.len == path.len) {
let i: i32 = 0;
let eq: bool = true;
for (i < path.len) {
if (n.s[i] != path[i]) { eq = false; i = path.len; }
else { i += 1; };
};
if (eq) { return true; };
};
n = n.snext;
};
return false;
};
fn visitadd(c: *expctx, path: str) void = {
let n: *strnode = alloc(strnode{s=path, snext=c.visit})!;
c.visit = n;
};
// Translate dots in an `import` name to slashes for path lookup.
// `encoding.utf8` → `encoding/utf8`. Mirrors Hare's hare(1)
// use-path → fs-path mapping
// (ref/hare/hare/module/srcs.ha:78 builds the same shape via
// path::push per ident part).
fn importpathform(name: *u8, namelen: u64) *u8 = {
let buf: []u8 = alloc([], namelen + 1u64)!;
let i: u64 = 0u64;
for (i < namelen) {
if (name[i] == 46u8) { buf[i] = 47u8; } // '.' -> '/'
else { buf[i] = name[i]; };
i += 1u64;
};
buf[namelen] = 0u8;
return buf.ptr;
};
// Try <dir>/<path>/ as a directory, then <dir>/<path>.ww as a file.
// Sets *isdir on hit. Symmetric with cstage locate_import_in for
// byte-id driver output (rule 10). The legacy <dir>/<name>/<name>.ww
// form was dropped in task #22 — directory-as-module enumeration
// replaces it, mirroring ref/hare/hare/module/srcs.ha (Hare has no
// `foo/foo.ha` fallback; a module IS the directory).
fn locatein(dir: *u8, dirlen: u64,
pathform: *u8, pflen: u64, isdir: *i32) *u8 = {
let buf: []u8 = alloc([], (os.PATH_MAX: u64))!;
let off: u64 = 0u64;
let i: u64 = 0u64;
for (i < dirlen) { buf[off + i] = dir[i]; i += 1u64; };
off += dirlen;
buf[off] = 47u8; off += 1u64; // '/'
i = 0u64;
for (i < pflen) { buf[off + i] = pathform[i]; i += 1u64; };
off += pflen;
buf[off] = 0u8;
let fi: os.filestat;
let r: (void | os.oserror) = os.stat(&fi, pathstr(buf.ptr));
let isdirhit: bool = false;
match (r) {
case void => {
let t: u32 = (fi.mode: u32) & 61440u32; // S_IFMT
if (t == os.mode.DIR: u32) { isdirhit = true; };
};
case let e: os.oserror => void;
};
if (isdirhit) {
*isdir = 1;
return buf.ptr;
};
let buf2: []u8 = alloc([], (os.PATH_MAX: u64))!;
off = 0u64;
i = 0u64;
for (i < dirlen) { buf2[off + i] = dir[i]; i += 1u64; };
off += dirlen;
buf2[off] = 47u8; off += 1u64;
i = 0u64;
for (i < pflen) { buf2[off + i] = pathform[i]; i += 1u64; };
off += pflen;
buf2[off] = 46u8; off += 1u64; // '.'
buf2[off] = 119u8; off += 1u64; // 'w'
buf2[off] = 119u8; off += 1u64; // 'w'
buf2[off] = 0u8;
if (os.access(pathstr(buf2.ptr), 0i32) == 0) {
*isdir = 0;
return buf2.ptr;
};
return nil;
};
// Walk a colon-separated dirlist, return first hit or nil. Sets
// *isdir on hit.
fn locateimport(dirs: *u8, name: *u8, namelen: u64,
isdir: *i32) *u8 = {
let pathform: *u8 = importpathform(name, namelen);
let pflen: u64 = cstrlen(pathform);
let total: u64 = cstrlen(dirs);
let p: u64 = 0u64;
for (p < total) {
let q: u64 = p;
for (q < total) {
if (dirs[q] == ':') { break; };
q += 1u64;
};
let seglen: u64 = q - p;
if (seglen > 0u64) {
let hit: *u8 = locatein(dirs + p, seglen,
pathform, pflen, isdir);
if (hit != nil) { return hit; };
};
p = q + 1u64;
};
return nil;
};
// Filter for dir enumeration: keep `*.ww` minus `*test.ww` and the
// `*.combined.ww` driver-generated concat artifacts (the previous
// build leaves them in the source tree; they parse-error when
// re-included). Returns true to keep.
fn dirfilekeep(name: *u8, nlen: u64) bool = {
// nlen<=3 guard kept: a bare ".ww" (len 3) is rejected here but
// would pass strings.hassuffix(".ww"); preserves cstage parity.
if (nlen <= 3u64) { return false; };
let s: str;
s.ptr = name;
s.len = nlen: i32;
if (!strings.hassuffix(s, ".ww")) { return false; };
if (strings.hassuffix(s, "test.ww")) { return false; };
// ".combined.ww" — full 12-char match mirrors cstage
// cmd/ww/main.c enumerate_dir_ww strcmp (rule 10).
if (strings.hassuffix(s, ".combined.ww")) { return false; };
return true;
};
// Byte-wise memcmp returning < 0, 0, > 0. Rule-10 byte-id requires
// cstage and wwstage sort the same way; memcmp is the
// locale-independent total order (mirrors ref/hare/sort/cmp/cmp.ha
// strs).
fn bytecmp(a: *u8, alen: u64, b: *u8, blen: u64) i32 = {
let n: u64 = alen;
if (blen < n) { n = blen; };
let i: u64 = 0u64;
for (i < n) {
let av: i32 = (a[i]): i32;
let bv: i32 = (b[i]): i32;
if (av < bv) { return -1; };
if (av > bv) { return 1; };
i += 1u64;
};
if (alen < blen) { return -1; };
if (alen > blen) { return 1; };
return 0;
};
// enumeratedir — list *.ww entries of `dirpath` (less *test.ww and
// *.combined.ww), byte-sort. Returns (names[], nnames) with each
// name a NUL-terminated heap copy.
fn enumeratedir(dirpath: *u8) (**u8, i32) = {
let fd: i32 = os.open(pathstr(dirpath), os.flag.RDONLY, 0i32);
if (fd < 0) { return nil: **u8, 0; };
let maxnames: i32 = 256;
let names: []*u8 = alloc([], maxnames: u64)!;
let nlens: []u64 = alloc([], maxnames: u64)!;
let n: i32 = 0;
let buf: []u8 = alloc([], 8192u64)!;
buf.len = 8192;
let r: i64 = os.getdents64(fd, buf.ptr, 8192u64);
for (r > 0i64) {
let off: u64 = 0u64;
let ru: u64 = r: u64;
for (off < ru) {
let blo: u64 = (buf[off + 16u64]): u64;
let bhi: u64 = (buf[off + 17u64]): u64;
let reclen: u64 = blo + (bhi * 256u64);
let nm: *u8 = buf.ptr + off + 19u64;
let nl: u64 = cstrlen(nm);
if (dirfilekeep(nm, nl)) {
if (n < maxnames) {
let cp: []u8 = alloc([], nl + 1u64)!;
let i: u64 = 0u64;
for (i < nl) { cp[i] = nm[i]; i += 1u64; };
cp[nl] = 0u8;
names[n] = cp.ptr;
nlens[n] = nl;
n += 1;
};
};
off += reclen;
};
r = os.getdents64(fd, buf.ptr, 8192u64);
};
os.close(fd);
// Insertion sort, byte-wise. n is small (≤16 in practice).
let i: i32 = 1;
for (i < n) {
let j: i32 = i;
for (j > 0) {
if (bytecmp(names[j - 1], nlens[j - 1],
names[j], nlens[j]) <= 0) { j = 0; }
else {
let t: *u8 = names[j];
names[j] = names[j - 1];
names[j - 1] = t;
let tl: u64 = nlens[j];
nlens[j] = nlens[j - 1];
nlens[j - 1] = tl;
j -= 1;
};
};
i += 1;
};
return names.ptr, n;
};
// ---- file slurp -------------------------------------------------------
fn slurp(pathcs: *u8) (*u8, u64) = {
let fd: i32 = os.open(pathstr(pathcs), os.flag.RDONLY, 0i32);
if (fd < 0) { return nil, 0u64; };
let szr: (i64 | os.oserror) = os.filesize(fd);
let n: i64 = 0i64;
match (szr) {
case let v: i64 => n = v;
case let e: os.oserror => { os.close(fd); return nil, 0u64; };
};
let nu: u64 = n: u64;
let buf: []u8 = alloc([], nu + 1u64)!;
buf.len = (nu + 1u64): i32;
let rr: (i64 | os.oserror) = os.readall(fd, buf.ptr, nu);
os.close(fd);
let got: i64 = 0i64;
match (rr) {
case let v: i64 => got = v;
case let e: os.oserror => return nil, 0u64;
};
if (got != n) { return nil, 0u64; };
buf[nu] = 0u8;
return buf.ptr, nu;
};
fn isidentbyte(c: u8) bool = {
if (c >= 'a' && c <= 'z') { return true; };
if (c >= 'A' && c <= 'Z') { return true; };
if (c >= '0' && c <= '9') { return true; };
if (c == '_') { return true; };
if (c == '.') { return true; };
return false;
};
// Scan one `import IDENT;` line out of [start, end). Returns the start
// of the ident and its length, or (nil, 0) if no `import` here. The
// caller passes a slice of the source: src points at the line start.
fn scanuse(src: *u8, len: u64) (*u8, u64) = {
let i: u64 = 0u64;
// skip leading whitespace
for (i < len) {
if (src[i] != 32u8) { if (src[i] != 9u8) { break; }; };
i += 1u64;
};
// i+7>len guard kept: hasprefix("import") covers the 6 spell-out
// bytes, but the sep read at src[i+6] still needs i+6 < len.
if (i + 7u64 > len) { return nil, 0u64; };
let rest: str;
rest.ptr = src + i;
rest.len = (len - i): i32;
if (!strings.hasprefix(rest, "import")) { return nil, 0u64; };
let sep: u8 = src[i + 6u64];
if (sep != 32u8) { if (sep != 9u8) { return nil, 0u64; }; };
i += 7u64;
for (i < len) {
if (src[i] != 32u8) { if (src[i] != 9u8) { break; }; };
i += 1u64;
};
let idstart: u64 = i;
for (i < len) {
if (!isidentbyte(src[i])) { break; };
i += 1u64;
};
let idlen: u64 = i - idstart;
if (idlen == 0u64) { return nil, 0u64; };
return src + idstart, idlen;
};
// expand — emit one file's bytes verbatim into the combined stream,
// after recursive-expanding its top-of-file `import X;` imports.
// Each source declares its own `package <name>;` (parser stamps
// decls).
fn expand(c: *expctx, pathcs: *u8) void = {
let plen: u64 = cstrlen(pathcs);
let view: str;
view.ptr = pathcs;
view.len = plen: i32;
let pathstr: str = strings.dup(view);
if (visitseen(c, pathstr)) { return; };
visitadd(c, pathstr);
let bufp: *u8;
let blen: u64;
bufp, blen = slurp(pathcs);
if (bufp == nil) {
cerr("ww: cannot read source\n");
return;
};
// Pass 1: scan top-of-file `import X;` lines, recursively expand.
let i: u64 = 0u64;
for (i < blen) {
let j: u64 = i;
for (j < blen) {
if (bufp[j] == 10u8) { break; }; // '\n'
j += 1u64;
};
let idp: *u8;
let idn: u64;
idp, idn = scanuse(bufp + i, j - i);
if (idp != nil) {
let isdir: i32 = 0;
let ipath: *u8 = locateimport(c.dirs, idp, idn,
&isdir);
if (ipath != nil) {
if (isdir != 0) { expanddir(c, ipath); }
else { expand(c, ipath); };
} else {
// #16 ENFORCE-driver (rob A): a locate-miss is
// legal when the package is defined INLINE in the
// same unit (single-file multi-package). leaf = the
// last dotted component of the import name; if an
// inline `package <leaf>` exists -> silent skip
// (the checker binds it), else fatal. cstage twin in
// cmd/ww/main.c; fatal text identical.
let lstart: u64 = 0u64;
let lk: u64 = 0u64;
for (lk < idn) {
if (idp[lk] == 46u8) { lstart = lk + 1u64; }; // '.'
lk += 1u64;
};
let leafp: *u8 = idp + lstart;
let leafn: u64 = idn - lstart;
if (!unithaspackage(bufp, blen, leafp, leafn)) {
cerr("ww: cannot find package ");
os.write(2, idp, idn);
cerr("\n");
os.exit(1);
};
};
};
i = j + 1u64;
};
// #16 option-B: a package-less file's decls would otherwise inherit
// the preceding bundled module's sticky curmod (parser parse.ww). Emit
// a curmod-reset boundary directive so the lexer/parser attribute the
// file to the primary module ("") — fixes the self-import false-fire
// and the leaked-prefix bug, codegen-neutral (bare symbols kept; not
// `package main`, which would main-prefix them). A packaged file's own
// `package` decl already sets curmod, so it needs nothing — keeping
// the directive out of every tracked combined.ww. (Task #11.)
if (peekpackage(pathcs) == nil) {
let d: str = "//ww:module-reset\n";
os.writeall(c.out, d.ptr, d.len: u64);
};
os.writeall(c.out, bufp, blen);
os.writeall(c.out, "\n".ptr, 1u64);
};
// Scan `pathcs` for its first non-comment-non-blank line; if it
// starts with `package <name>;` return the package name as a fresh
// heap-allocated NUL-terminated *u8, else nil. Same shape as cstage
// peek_package.
//
// Reads the WHOLE file (via slurp), not a fixed prefix: cstage's
// peek_package scans line-by-line with fgets and no total cap, stopping
// at the first non-comment-non-blank line. A prior 2048-byte read cap
// here diverged from cstage on files whose `package` decl sits behind a
// >2048-byte comment header (strconv decimal/ftos/stof, memio) —
// returning nil and making the #16 D-i injection asymmetric (rule-10
// break, byte-id divergence in the regenerated combined). The corpus has
// no line >2047 chars, so a whole-file line scan matches cstage's
// per-line fgets byte-for-byte on every real input.
fn peekpackage(pathcs: *u8) *u8 = {
let bufp: *u8;
let nu: u64;
bufp, nu = slurp(pathcs);
if (bufp == nil) { return nil; };
let p: u64 = 0u64;
for (p < nu) {
let q: u64 = p;
for (q < nu) {
if (bufp[q] == 10u8) { break; }; // '\n'
q += 1u64;
};
let s: u64 = p;
for (s < q) {
if (bufp[s] != 32u8) {
if (bufp[s] != 9u8) { break; };
};
s += 1u64;
};
if (s < q) {
let line: str;
line.ptr = bufp + s;
line.len = (q - s): i32;
// hasprefix("//") subsumes the old s+1<q guard.
if (strings.hasprefix(line, "//")) {
p = q + 1u64;
continue;
};
// s+8<=q guard kept: hasprefix("package") needs only 7
// bytes, but the sep read at bufp[s+7] needs s+7 < q.
if (s + 8u64 <= q) {
if (strings.hasprefix(line, "package")) {
let sep: u8 = bufp[s + 7u64];
if (sep == 32u8) { }
else { if (sep != 9u8) { return nil; }; };
let t: u64 = s + 8u64;
for (t < q) {
if (bufp[t] != 32u8) {
if (bufp[t] != 9u8) { break; };
};
t += 1u64;
};
let start: u64 = t;
for (t < q) {
let ch: u8 = bufp[t];
let isalpha: bool = false;
if (ch >= 97u8) { if (ch <= 122u8) { isalpha = true; }; };
if (ch >= 65u8) { if (ch <= 90u8) { isalpha = true; }; };
if (ch >= 48u8) { if (ch <= 57u8) { isalpha = true; }; };
if (ch == 95u8) { isalpha = true; };
if (!isalpha) { break; };
t += 1u64;
};
let plen: u64 = t - start;
if (plen == 0u64) { return nil; };
let r: []u8 = alloc([], plen + 1u64)!;
let k: u64 = 0u64;
for (k < plen) { r[k] = bufp[start + k]; k += 1u64; };
r[plen] = 0u8;
return r.ptr;
};
};
return nil;
};
p = q + 1u64;
};
return nil;
};
// unithaspackage — does the unit buffer declare `package <leaf>;` ANYWHERE?
// #16 ENFORCE-driver (rob A) cstage unit_has_package twin: distinguishes a
// genuinely-missing import from one satisfied by an INLINE package in the
// same single-file multi-package unit (`package aa; ... package main;
// import aa;`). Scans EVERY line (comment-skip) — not just the first
// package decl (peekpackage stops there). Decision byte-identical to
// cstage so the skip/fatal choice + driver output match (rule 10).
fn unithaspackage(buf: *u8, buflen: u64, leafp: *u8, leafn: u64) bool = {
let p: u64 = 0u64;
for (p < buflen) {
let q: u64 = p;
for (q < buflen) { if (buf[q] == 10u8) { break; }; q += 1u64; };
let s: u64 = p;
for (s < q) {
if (buf[s] != 32u8) { if (buf[s] != 9u8) { break; }; };
s += 1u64;
};
if (s < q) {
let line: str;
line.ptr = buf + s;
line.len = (q - s): i32;
if (strings.hasprefix(line, "//")) { p = q + 1u64; continue; };
if (s + 8u64 <= q) {
if (strings.hasprefix(line, "package")) {
let sep: u8 = buf[s + 7u64];
let oksep: bool = false;
if (sep == 32u8) { oksep = true; }
else { if (sep == 9u8) { oksep = true; }; };
if (oksep) {
let t: u64 = s + 8u64;
for (t < q) {
if (buf[t] != 32u8) { if (buf[t] != 9u8) { break; }; };
t += 1u64;
};
let m: u64 = 0u64;
let eq: bool = true;
for (m < leafn) {
if (t + m >= q) { eq = false; break; };
if (buf[t + m] != leafp[m]) { eq = false; break; };
m += 1u64;
};
if (eq) {
let after: u64 = t + leafn;
let term: bool = false;
if (after >= q) { term = true; }
else {
let c: u8 = buf[after];
if (c == 59u8) { term = true; } // ';'
else { if (c == 32u8) { term = true; }
else { if (c == 9u8) { term = true; }; }; };
};
if (term) { return true; };
};
};
};
};
};
p = q + 1u64;
};
return false;
};
// Strict-same-package error helper. Bundled here per task #22
// brief — failure mode is dir-enum's own.
fn strictpkgmismatch(file: *u8, pkg: *u8, dirpkg: *u8, dirpath: *u8) void = {
cerr("ww: ");
os.write(2, file, cstrlen(file));
cerr(": package ");
os.write(2, pkg, cstrlen(pkg));
cerr(" differs from ");
os.write(2, dirpkg, cstrlen(dirpkg));
cerr(" in same module dir ");
os.write(2, dirpath, cstrlen(dirpath));
cerr("\n");
os.exit(1);
};
// expanddir — enumerate <dirpath>/*.ww (skip *test.ww and
// *.combined.ww), byte-sort, recurse into each. Mirrors
// ref/hare/hare/module/srcs.ha:183 `_findsrcs` minus tag handling.
// The visited set keys on concrete file paths so multi-file modules
// are pulled once. Strict-same-package: all enumerated files must
// declare the same `package <name>;` (task #23 subset; failure
// mode native to dir-enum).
fn expanddir(c: *expctx, dirpath: *u8) void = {
let names: **u8;
let n: i32;
names, n = enumeratedir(dirpath);
let dlen: u64 = cstrlen(dirpath);
let dirpkg: *u8 = nil;
let i: i32 = 0;
for (i < n) {
let nlen: u64 = cstrlen(names[i]);
let fp: []u8 = alloc([], dlen + 1u64 + nlen + 1u64)!;
let k: u64 = 0u64;
for (k < dlen) { fp[k] = dirpath[k]; k += 1u64; };
fp[dlen] = 47u8; // '/'
k = 0u64;
for (k < nlen) { fp[dlen + 1u64 + k] = names[i][k]; k += 1u64; };
fp[dlen + 1u64 + nlen] = 0u8;
let pkg: *u8 = peekpackage(fp.ptr);
if (pkg != nil) {
if (dirpkg == nil) { dirpkg = pkg; }
else { if (!cstreq(dirpkg, pkg)) {
strictpkgmismatch(fp.ptr, pkg, dirpkg, dirpath);
}; };
};
expand(c, fp.ptr);
i += 1;
};
};
// ---- Build pipeline ---------------------------------------------------
// Strip the trailing ".ww" off `src` (a NUL-terminated path) into
// `stem`, NUL-terminated. If there's no .ww, the stem is the whole
// path.
fn makestem(stem: *u8, src: *u8) void = {
let n: u64 = cstrlen(src);
let stop: u64 = n;
if (n >= 3u64) {
if (src[n - 3u64] == 46u8) { // '.'
if (src[n - 2u64] == 119u8) { // 'w'
if (src[n - 1u64] == 119u8) { // 'w'
stop = n - 3u64;
};
};
};
};
let i: u64 = 0u64;
for (i < stop) { stem[i] = src[i]; i += 1u64; };
stem[stop] = 0u8;
};
// Append a literal suffix to `stem` (which already lives in a buffer).
fn appendlit(stem: *u8, suffix: str) *u8 = {
let buf: []u8 = alloc([], (os.PATH_MAX: u64))!;
buf.len = os.PATH_MAX;
let off: u64 = cstrinto(buf.ptr, 0u64, stem);
off = strinto(buf.ptr, off, suffix);
cstrseal(buf.ptr, off);
return buf.ptr;
};
// linker flags (-L<dir>, -l<name>) grouped as one struct so buildone's
// param list stays readable. (The earlier note here claimed a 6-argument
// wwstage calling-convention cap; that is stale — emittuplerowrelocs in
// cgen.ww takes 7 params and self-compiles green, and buildone itself now
// takes 7.)
type lflags = struct {
libdirs: **u8,
nlibdirs: i32,
libs: **u8,
nlibs: i32,
};
// buildone — compile `src` (file or directory) into the executable
// named `out`.
// selfdir: NUL-terminated dir containing this driver and the
// wwstage tools (w6c_ww/w6a_ww/w6l_ww)
// src: NUL-terminated entry path (file or directory).
// entryisdir: non-zero when src is a module directory.
// out: NUL-terminated desired output path
// objstem: when non-nil, redirects the .s/.o/.combined.ww side
// files to live beside this stem instead of next to the
// source (T3 / task #15). `ww run` and `ww build -o` pass
// it so concurrent builds never share next-to-source fixed
// paths; nil keeps the old next-to-source layout (the make
// tracked-combined.ww regen + #110 gate depend on it). Twin
// of cmd/ww/main.c build_one's objstem.
// incs: NUL-terminated colon-list of -I dirs (may be empty)
// lf: extra linker flags (-L<dir>, -l<name>); may be nil
//
// The ww-side driver shells to the ww-side tools so a `ww_ww build`
// touches no C-built code at runtime. The C `ww` driver in cmd/ww/
// still drives the C-built w6c/w6a/w6l. Test 993 pins the two
// pipelines to byte-identical output on a corpus.
fn buildone(selfdir: *u8, src: *u8, entryisdir: i32, out: *u8, objstem: *u8, incs: *u8, lf: *lflags, istest: i32) i32 = {
let c6: *u8 = joinpathlit(selfdir, "w6c_ww");
let a6: *u8 = joinpathlit(selfdir, "w6a_ww");
let l6: *u8 = joinpathlit(selfdir, "w6l_ww");
// Default lib search path: <selfdir>/../../lib
let dotdotlib: []u8 = alloc([], (os.PATH_MAX: u64))!;
dotdotlib.len = os.PATH_MAX;
{
let off: u64 = cstrinto(dotdotlib.ptr, 0u64, selfdir);
off = strinto(dotdotlib.ptr, off, "/../../lib");
cstrseal(dotdotlib.ptr, off);
};
// Compute the source directory. For a file entry: bytes of `src`
// up to the last '/' (or "." when src has no '/'). For a dir
// entry: the dir itself (less trailing slashes). Hare's CWD-first
// convention assumes you're running from the module dir; our
// wrappers don't cd, so dirname(src) stands in as the closest
// analog. Source-dir wins ties over the system path (cc -I.).
let srcd: []u8 = alloc([], (os.PATH_MAX: u64))!;
srcd.len = os.PATH_MAX;
if (entryisdir != 0) {
let slen: u64 = cstrlen(src);
let k: u64 = 0u64;
for (k < slen) { srcd[k] = src[k]; k += 1u64; };
for (slen > 1u64) {
if (srcd[slen - 1u64] != 47u8) { break; };
slen -= 1u64;
};
srcd[slen] = 0u8;
} else {
let slen: u64 = cstrlen(src);
let last: u64 = slen;
let found: bool = false;
let i: u64 = slen;
for (i > 0u64) {
i -= 1u64;
if (src[i] == 47u8) { // '/'
last = i;
found = true;
i = 0u64;
};
};
if (found) {
let k: u64 = 0u64;
for (k < last) { srcd[k] = src[k]; k += 1u64; };
srcd[last] = 0u8;
} else {
srcd[0] = 46u8; // '.'
srcd[1] = 0u8;
};
};
// Compose searchpath: srcd + ':' + incs + ':' + dotdotlib.
let searchpath: []u8 = alloc([], (os.PATH_MAX: u64) * 3u64)!;
searchpath.len = ((os.PATH_MAX: u64) * 3u64): i32;
{
let off: u64 = cstrinto(searchpath.ptr, 0u64, srcd.ptr);
off = byteinto(searchpath.ptr, off, 58u8); // ':'
if (incs[0u64] != 0u8) {
off = cstrinto(searchpath.ptr, off, incs);
off = byteinto(searchpath.ptr, off, 58u8); // ':'
};
off = cstrinto(searchpath.ptr, off, dotdotlib.ptr);
cstrseal(searchpath.ptr, off);
};
// Stem for .s/.o/.combined.ww side files. Dir entry: <dir>/<base>;
// file entry: src stripped of .ww.
let stem: []u8 = alloc([], (os.PATH_MAX: u64))!;
stem.len = os.PATH_MAX;
if (entryisdir != 0) {
let dlen: u64 = cstrlen(srcd.ptr);
let bo: u64 = basenameoff(srcd.ptr, dlen);
let off: u64 = cstrinto(stem.ptr, 0u64, srcd.ptr);
stem[off] = 47u8; off += 1u64; // '/'
let i: u64 = bo;
for (i < dlen) { stem[off] = srcd[i]; off += 1u64; i += 1u64; };
cstrseal(stem.ptr, off);
} else {
makestem(stem.ptr, src);
};
let effstem: *u8 = stem.ptr;
if (objstem != nil) { effstem = objstem; };
let asmf: *u8 = appendlit(effstem, ".s");
let objf: *u8 = appendlit(effstem, ".o");
let combined: *u8 = appendlit(effstem, ".combined.ww");
// libwwrt.a path: <selfdir>/../lib/libwwrt.a
let libwwrt: []u8 = alloc([], (os.PATH_MAX: u64))!;
libwwrt.len = os.PATH_MAX;
{
let off: u64 = cstrinto(libwwrt.ptr, 0u64, selfdir);
off = strinto(libwwrt.ptr, off, "/../lib/libwwrt.a");
cstrseal(libwwrt.ptr, off);
};
// Step 1: expand imports into the combined file. Dir entry →
// enumerate the module dir; file entry → start at the file.
let cf: i32 = os.open(pathstr(combined), os.flag.WRONLY | os.flag.CREATE | os.flag.TRUNC, 420i32); // 0o644
if (cf < 0) {
cerr("ww: cannot open combined\n");
return 1;
};
{
let c: expctx;
c.out = cf;
c.dirs = searchpath.ptr;
c.visit = nil;
// #17 auto-bundle lib/test: the -T synth's main calls lib/test's
// run(), but @test files don't `import test;`. Pull it like an
// implicit import through the same locate+expand path (the visit
// set dedupes a fixture that imports it explicitly). cstage twin
// in cmd/ww/main.c buildone.
if (istest != 0) {
let td: i32 = 0;
let tp: *u8 = locateimport(searchpath.ptr, "test".ptr, "test".len: u64, &td);
if (tp != nil) {
if (td != 0) { expanddir(&c, tp); }
else { expand(&c, tp); };
};
};
if (entryisdir != 0) { expanddir(&c, srcd.ptr); }
else { expand(&c, src); };
};
os.close(cf);
// Step 2: w6c [-T] -o <stem>.s <stem>.combined.ww
{
let argv: []*u8 = alloc([], 6u64)!;
let p: i32 = 0;
argv[p] = "w6c\0".ptr; p += 1;
if (istest != 0) { argv[p] = "-T\0".ptr; p += 1; };
argv[p] = "-o\0".ptr; p += 1;
argv[p] = asmf; p += 1;
argv[p] = combined; p += 1;
argv[p] = nil; p += 1;
argv.len = p;
if (procrun(c6, argv.ptr) != 0) {
cerr("ww: w6c failed\n");
return 1;
};
};
// Step 3: w6a -o <stem>.o <stem>.s
{
let argv: []*u8 = alloc([], 5u64)!;
argv.len = 5;
argv[0] = "w6a\0".ptr;
argv[1] = "-o\0".ptr;
argv[2] = objf;
argv[3] = asmf;
argv[4] = nil;
if (procrun(a6, argv.ptr) != 0) {
cerr("ww: w6a failed\n");
return 1;
};
};
// Step 4: w6l -o <out> <stem>.o libwwrt.a [-L<dir>...] [-l<name>...]
{
let nldirs: i32 = 0;
let nllibs: i32 = 0;
let ldirs: **u8 = nil;
let llibs: **u8 = nil;
if (lf != nil) {
nldirs = lf.nlibdirs;
nllibs = lf.nlibs;
ldirs = lf.libdirs;
llibs = lf.libs;
};
// argv slots: 5 fixed (w6l, -o, out, objf, libwwrt)
// + 2 * nlibdirs (-L, dir)
// + 2 * nlibs (-l, name)
// + 1 nil terminator.
let total: i32 = 5 + 2 * nldirs + 2 * nllibs + 1;
let argv: []*u8 = alloc([], total: u64)!;
argv.len = total;
argv[0] = "w6l\0".ptr;
argv[1] = "-o\0".ptr;
argv[2] = out;
argv[3] = objf;
argv[4] = libwwrt.ptr;
let pos: i32 = 5;
let k: i32 = 0;
for (k < nldirs) {
argv[pos] = "-L\0".ptr;
argv[pos + 1] = ldirs[k];
pos += 2;
k += 1;
};
k = 0;
for (k < nllibs) {
argv[pos] = "-l\0".ptr;
argv[pos + 1] = llibs[k];
pos += 2;
k += 1;
};
argv[pos] = nil;
if (procrun(l6, argv.ptr) != 0) {
cerr("ww: w6l failed\n");
return 1;
};
};
return 0;
};
// ---- Module-by-name resolution ----------------------------------------
//
// Mirrors cmd/ww/main.c:resolvemodule. Maps a name like "foo", "lib/foo",
// "foo.ww", or "." to a concrete .ww file path:
// 1. literal <name>.ww that exists → use as-is
// 2. "." → <cwd>/<basename(cwd)>.ww → that, if it exists
// 3. <name>/<basename(name)>.ww → that, if it exists
// 4. walk search path (cwd:incs:<selfdir>/../../lib):
// <dir>/<name>.ww or <dir>/<name>/<name>.ww
fn cstrendswithlit(p: *u8, lit: str) bool = {
return strings.hassuffix(pathstr(p), lit);
};
// basenameoff — return the offset of the last path segment within `p`
// (i.e. one past the final '/'). Returns 0 if there's no slash.
fn basenameoff(p: *u8, plen: u64) u64 = {
let start: u64 = 0u64;
let i: u64 = 0u64;
for (i < plen) {
if (p[i] == '/') { start = i + 1u64; };
i += 1u64;
};
return start;
};
// arenadupcstr — copy `plen` bytes from `src` into a fresh NUL-sealed
// heap buffer.
fn arenadupcstr(src: *u8, plen: u64) *u8 = {
let buf: []u8 = alloc([], plen + 1u64)!;
let i: u64 = 0u64;
for (i < plen) { buf[i] = src[i]; i += 1u64; };
buf[plen] = 0u8;
return buf.ptr;
};
// buildsearchpath — compose the colon-separated lookup path used by
// resolvemodule's case (4). Order: "." : <incs> : <selfdir>/../../lib
fn buildsearchpath(selfdir: *u8, incs: *u8) *u8 = {
let buf: []u8 = alloc([], (os.PATH_MAX: u64) * 2u64)!;
let off: u64 = 0u64;
buf[off] = 46u8; off += 1u64; // '.'
if (incs != nil) {
if (incs[0u64] != 0u8) {
buf[off] = 58u8; off += 1u64; // ':'
off = cstrinto(buf.ptr, off, incs);
};
};
buf[off] = 58u8; off += 1u64;
off = cstrinto(buf.ptr, off, selfdir);
off = strinto(buf.ptr, off, "/../../lib");
cstrseal(buf.ptr, off);
return buf.ptr;
};
// resolvemodule — map a name like "foo", "lib/foo", "foo.ww", or
// "." to a concrete entry path. Sets *isdir when the entry is a
// module directory (caller will dir-enumerate).
fn resolvemodule(selfdir: *u8, name: *u8, incs: *u8, isdir: *i32) *u8 = {
let nlen: u64 = cstrlen(name);
// (1) Literal file that exists → use as-is.
if (cstrendswithlit(name, ".ww")) {
if (os.access(pathstr(name), 0i32) == 0) {
*isdir = 0;
return arenadupcstr(name, nlen);
};
};
// (2) Existing path → use as-is, dir vs file via stat.
let fi: os.filestat;
let sr: (void | os.oserror) = os.stat(&fi, pathstr(name));
let found: bool = false;
let foundisdir: i32 = 0;
match (sr) {
case void => {
let t: u32 = (fi.mode: u32) & 61440u32; // S_IFMT
if (t == os.mode.DIR: u32) { foundisdir = 1; };
found = true;
};
case let e: os.oserror => void;
};
if (found) {
*isdir = foundisdir;
return arenadupcstr(name, nlen);
};
// (3) Search-path lookup with dot-to-slash path translation.
let search: *u8 = buildsearchpath(selfdir, incs);
return locateimport(search, name, nlen, isdir);
};
// ---- Subcommand handlers ----------------------------------------------
fn writeusage(fd: i32) void = {
let s: str = "usage: ww [-V] <subcommand> [args...]\n -V print version and exit\n build [path] compile module to a static binary (path defaults to cwd)\n run [path] ... build then exec, passing extra args to the program\n test [path] build and run *_test.ww in the module (path defaults to cwd)\n version print version and exit\n\n path forms:\n foo.ww literal file\n foo search cwd, -I dirs, then $WW_LIB-equiv for foo.ww or foo/foo.ww\n lib/foo directory: build lib/foo/foo.ww\n . build the cwd's <basename>.ww\n";
os.write(fd, s.ptr, s.len: u64);
};
fn doversion() i32 = {
os.write(1, "ww 0.0\n".ptr, 7u64);
return 0;
};
// Compute the basename of src (without trailing ".ww") into a fresh
// buffer. Used as the default output path for `ww build`.
fn defaultoutpath(src: *u8) *u8 = {
let n: u64 = cstrlen(src);
let start: u64 = 0u64;
let i: u64 = 0u64;
for (i < n) {
if (src[i] == 47u8) { start = i + 1u64; }; // '/'
i += 1u64;
};
let out: []u8 = alloc([], (os.PATH_MAX: u64))!;
out.len = os.PATH_MAX;
let off: u64 = 0u64;
let j: u64 = start;
for (j < n) {
out[off] = src[j];
off += 1u64;
j += 1u64;
};
// Strip ".ww" if present.
if (off >= 3u64) {
if (out[off - 3u64] == 46u8) {
if (out[off - 2u64] == 119u8) {
if (out[off - 1u64] == 119u8) {
off -= 3u64;
};
};
};
};
cstrseal(out.ptr, off);
return out.ptr;
};
fn dobuild(selfdir: *u8, argv: **u8, argc: i32, start: i32) i32 = {
let src: *u8 = nil;
let outflag: *u8 = nil; // -o target (binary + intermediate stem); T3
let incs: []u8 = alloc([], (os.PATH_MAX: u64) * 2u64)!;
incs.len = ((os.PATH_MAX: u64) * 2u64): i32;
let incoff: u64 = 0u64;
cstrseal(incs.ptr, 0u64);
let maxlflags: i32 = 32;
let libdirs: []*u8 = alloc([], maxlflags: u64)!;
libdirs.len = maxlflags;
let nlibdirs: i32 = 0;
let libs: []*u8 = alloc([], maxlflags: u64)!;
libs.len = maxlflags;
let nlibs: i32 = 0;
let i: i32 = start;
for (i < argc) {
let p: *u8 = argv[i];
if (p[0u64] == 45u8) { // '-'
if (p[1u64] == 73u8) { // '-I'
let dir: *u8 = nil;
if (p[2u64] != 0u8) {
dir = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww build: -I needs an argument\n");
return 2;
};
i += 1;
dir = argv[i];
};
if (incoff > 0u64) {
incs[incoff] = 58u8; // ':'
incoff += 1u64;
};
incoff = cstrinto(incs.ptr, incoff, dir);
cstrseal(incs.ptr, incoff);
} else { if (p[1u64] == 76u8) { // '-L'
let dir: *u8 = nil;
if (p[2u64] != 0u8) {
dir = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww build: -L needs an argument\n");
return 2;
};
i += 1;
dir = argv[i];
};
if (nlibdirs >= maxlflags) {
cerr("ww build: too many -L\n");
return 2;
};
libdirs[nlibdirs] = dir;
nlibdirs += 1;
} else { if (p[1u64] == 108u8) { // '-l'
let nm: *u8 = nil;
if (p[2u64] != 0u8) {
nm = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww build: -l needs an argument\n");
return 2;
};
i += 1;
nm = argv[i];
};
if (nlibs >= maxlflags) {
cerr("ww build: too many -l\n");
return 2;
};
libs[nlibs] = nm;
nlibs += 1;
} else { if (p[1u64] == 111u8) { // '-o'
if (p[2u64] != 0u8) {
outflag = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww build: -o needs an argument\n");
return 2;
};
i += 1;
outflag = argv[i];
};
} else {
cerr("ww build: unknown flag\n");
return 2;
}; }; }; };
} else {
if (src == nil) { src = p; };
};
i += 1;
};
if (src == nil) {
// default to cwd module
let dot: [2]u8 = ['.': u8, 0u8];
src = &dot[0];
};
let isdir: i32 = 0;
let resolved: *u8 = resolvemodule(selfdir, src, incs.ptr, &isdir);
if (resolved == nil) {
cerr("ww build: cannot find module\n");
return 1;
};
let out: *u8 = nil;
let objstem: *u8 = nil;
if (outflag != nil) {
// -o sets both the binary path and the intermediate stem so
// artifacts land beside the requested output (T3).
out = outflag;
objstem = outflag;
} else { if (isdir != 0) {
let rlen: u64 = cstrlen(resolved);
for (rlen > 1u64) {
if (resolved[rlen - 1u64] != 47u8) { break; };
rlen -= 1u64;
};
let bo: u64 = basenameoff(resolved, rlen);
let outbuf: []u8 = alloc([], (os.PATH_MAX: u64))!;
outbuf.len = os.PATH_MAX;
out = outbuf.ptr;
let i: u64 = bo;
let off: u64 = 0u64;
for (i < rlen) { out[off] = resolved[i]; off += 1u64; i += 1u64; };
cstrseal(out, off);
} else {
out = defaultoutpath(resolved);
}; };
let lf: lflags;
lf.libdirs = libdirs.ptr;
lf.nlibdirs = nlibdirs;
lf.libs = libs.ptr;
lf.nlibs = nlibs;
return buildone(selfdir, resolved, isdir, out, objstem, incs.ptr, &lf, 0i32);
};
// Format the scratch path /tmp/ww_run_<pid> into buf. Returns NUL-
// terminated buf. Pid is folded in decimal manually since we don't
// import strconv.
fn makeruntmp(buf: *u8) void = {
let off: u64 = 0u64;
off = strinto(buf, off, "/tmp/ww_run_");
let pid: i32 = os.getpid();
// itoa for non-negative pid
let dig: [16]u8;
let n: i32 = 0;
if (pid <= 0) {
dig[n] = 48u8; // '0'
n += 1;
} else {
let v: i32 = pid;
for (v > 0) {
dig[n] = ((v % 10) + 48): u8;
n += 1;
v = v / 10;
};
};
let k: i32 = n - 1;
for (k >= 0) {
buf[off] = dig[k];
off += 1u64;
k -= 1;
};
cstrseal(buf, off);
};
fn dorun(selfdir: *u8, argv: **u8, argc: i32, start: i32) i32 = {
let src: *u8 = nil;
let passstart: i32 = -1; // first argv idx to pass through to program
let incs: []u8 = alloc([], (os.PATH_MAX: u64) * 2u64)!;
incs.len = ((os.PATH_MAX: u64) * 2u64): i32;
let incoff: u64 = 0u64;
cstrseal(incs.ptr, 0u64);
let maxlflags: i32 = 32;
let libdirs: []*u8 = alloc([], maxlflags: u64)!;
libdirs.len = maxlflags;
let nlibdirs: i32 = 0;
let libs: []*u8 = alloc([], maxlflags: u64)!;
libs.len = maxlflags;
let nlibs: i32 = 0;
let i: i32 = start;
for (i < argc) {
if (passstart >= 0) { i = argc; } // stop, leave rest for exec
else {
let p: *u8 = argv[i];
if (p[0u64] == 45u8) {
if (p[1u64] == 73u8) {
let dir: *u8 = nil;
if (p[2u64] != 0u8) {
dir = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww run: -I needs an argument\n");
return 2;
};
i += 1;
dir = argv[i];
};
if (incoff > 0u64) {
incs[incoff] = 58u8;
incoff += 1u64;
};
incoff = cstrinto(incs.ptr, incoff, dir);
cstrseal(incs.ptr, incoff);
} else { if (p[1u64] == 76u8) {
let dir: *u8 = nil;
if (p[2u64] != 0u8) {
dir = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww run: -L needs an argument\n");
return 2;
};
i += 1;
dir = argv[i];
};
if (nlibdirs >= maxlflags) {
cerr("ww run: too many -L\n");
return 2;
};
libdirs[nlibdirs] = dir;
nlibdirs += 1;
} else { if (p[1u64] == 108u8) {
let nm: *u8 = nil;
if (p[2u64] != 0u8) {
nm = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww run: -l needs an argument\n");
return 2;
};
i += 1;
nm = argv[i];
};
if (nlibs >= maxlflags) {
cerr("ww run: too many -l\n");
return 2;
};
libs[nlibs] = nm;
nlibs += 1;
} else { if (p[1u64] == 111u8) { // '-o'
// run always execs the temp binary; -o is accepted+
// ignored, mirroring the C driver's shared flag parser.
if (p[2u64] == 0u8) {
if (i + 1 >= argc) {
cerr("ww run: -o needs an argument\n");
return 2;
};
i += 1;
};
} else {
cerr("ww run: unknown flag\n");
return 2;
}; }; }; };
i += 1;
} else {
if (src == nil) {
src = p;
i += 1;
} else {
passstart = i; // remaining args go to the program
};
};
};
};
if (src == nil) {
let dot: [2]u8 = ['.': u8, 0u8];
src = &dot[0];
};
let isdir: i32 = 0;
let resolved: *u8 = resolvemodule(selfdir, src, incs.ptr, &isdir);
if (resolved == nil) {
cerr("ww run: cannot find module\n");
return 1;
};
let tmp: []u8 = alloc([], (os.PATH_MAX: u64))!;
tmp.len = os.PATH_MAX;
makeruntmp(tmp.ptr);
let lf: lflags;
lf.libdirs = libdirs.ptr;
lf.nlibdirs = nlibdirs;
lf.libs = libs.ptr;
lf.nlibs = nlibs;
// objstem = tmp → intermediates at /tmp/ww_run_<pid>.{s,o,combined.ww},
// never next to the source (T3).
if (buildone(selfdir, resolved, isdir, tmp.ptr, tmp.ptr, incs.ptr, &lf, 0i32) != 0) {
os.remove(pathstr(tmp.ptr));
return 1;
};
// exec with [tmp, argv[passstart..argc), nil]
let nextra: i32 = 0;
if (passstart >= 0) { nextra = argc - passstart; };
let total: i32 = nextra + 2;
let execargv: []*u8 = alloc([], total: u64)!;
execargv.len = total;
execargv[0] = tmp.ptr;
let k: i32 = 0;
for (k < nextra) {
execargv[k + 1] = argv[passstart + k];
k += 1;
};
execargv[nextra + 1] = nil;
let rc: i32 = procrun(tmp.ptr, execargv.ptr);
os.remove(pathstr(tmp.ptr));
return rc;
};
// ---- ww test ----------------------------------------------------------
//
// Mirrors cmd/ww/main.c:dotest. Two modes:
// single-file: build+run a literal *.ww file, return its exit code
// directory: open the dir, getdents64, build+run each *_test.ww,
// report ok/FAIL per file, return 0 iff all pass.
fn runsingletest(selfdir: *u8, src: *u8, incs: *u8, compileonly: i32, outstem: *u8, pattern: *u8) i32 = {
let tmp: []u8 = alloc([], (os.PATH_MAX: u64))!;
tmp.len = os.PATH_MAX;
// -o redirects the binary + its combined (objstem, T3) to <stem>; the
// default temp keeps the combined next to the source as before.
let outp: *u8 = nil;
let objstem: *u8 = nil;
if (outstem != nil) {
outp = outstem;
objstem = outstem;
} else {
makeruntmp(tmp.ptr);
outp = tmp.ptr;
};
if (buildone(selfdir, src, 0, outp, objstem, incs, nil, 1i32) != 0) {
if (outstem == nil) { os.remove(pathstr(outp)); };
return 1;
};
if (compileonly != 0) { return 0; };
// #17 fnmatch filter: forward `pattern` as argv[1] so lib/test run()
// reads it via os.args. procrun execve's a NUL-terminated argv, so the
// terminator (not .len) bounds the vector. cstage twin: run_test_bin.
let execargv: []*u8 = alloc([], 3u64)!;
execargv[0] = outp;
if (pattern != nil) {
execargv.len = 3;
execargv[1] = pattern;
execargv[2] = nil;
} else {
execargv.len = 2;
execargv[1] = nil;
};
let rc: i32 = procrun(outp, execargv.ptr);
if (outstem == nil) { os.remove(pathstr(outp)); };
return rc;
};
fn rundirtests(selfdir: *u8, dir: *u8) i32 = {
let fd: i32 = os.open(pathstr(dir), os.flag.RDONLY, 0i32);
if (fd < 0) {
cerr("ww test: cannot open directory\n");
return 1;
};
let pass: i32 = 0;
let fail: i32 = 0;
let buf: []u8 = alloc([], 8192u64)!;
buf.len = 8192;
let dirlen: u64 = cstrlen(dir);
let n: i64 = os.getdents64(fd, buf.ptr, 8192u64);
for (n > 0i64) {
let off: u64 = 0u64;
let nu: u64 = n: u64;
for (off < nu) {
// d_reclen at offset+16 (u16 LE), d_name at offset+19 (cstr)
let blo: u64 = (buf[off + 16u64]): u64;
let bhi: u64 = (buf[off + 17u64]): u64;
let reclen: u64 = blo + (bhi * 256u64);
let name: *u8 = buf.ptr + off + 19u64;
if (cstrendswithlit(name, "_test.ww")) {
let nlen: u64 = cstrlen(name);
// path = <dir>/<name>
let path: []u8 = alloc([], (os.PATH_MAX: u64))!;
path.len = os.PATH_MAX;
let poff: u64 = cstrinto(path.ptr, 0u64, dir);
path[poff] = 47u8; poff += 1u64;
let i: u64 = 0u64;
for (i < nlen) { path[poff + i] = name[i]; i += 1u64; };
poff += nlen;
cstrseal(path.ptr, poff);
// incs = <dir> so test files can `use ` siblings
let tincs: []u8 = alloc([], (os.PATH_MAX: u64))!;
tincs.len = os.PATH_MAX;
let ic: u64 = cstrinto(tincs.ptr, 0u64, dir);
cstrseal(tincs.ptr, ic);
let tmp: []u8 = alloc([], (os.PATH_MAX: u64))!;
tmp.len = os.PATH_MAX;
makeruntmp(tmp.ptr);
let bres: i32 = buildone(selfdir, path.ptr, 0, tmp.ptr, nil, tincs.ptr, nil, 1i32);
if (bres != 0) {
fail += 1;
cerr("FAIL ");
os.write(2, name, nlen);
cerr(" (build)\n");
} else {
let execargv: []*u8 = alloc([], 2u64)!;
execargv.len = 2;
execargv[0] = tmp.ptr;
execargv[1] = nil;
let rc: i32 = procrun(tmp.ptr, execargv.ptr);
if (rc == 0) {
pass += 1;
os.write(1, "ok ".ptr, 5u64);
os.write(1, name, nlen);
os.write(1, "\n".ptr, 1u64);
} else {
fail += 1;
cerr("FAIL ");
os.write(2, name, nlen);
cerr("\n");
};
};
os.remove(pathstr(tmp.ptr));
};
off += reclen;
};
n = os.getdents64(fd, buf.ptr, 8192u64);
};
os.close(fd);
if (fail == 0) { return 0; };
return 1;
};
fn dotest(selfdir: *u8, argv: **u8, argc: i32, start: i32) i32 = {
// -I parsing mirrors dobuild/dorun so a single-file test can resolve
// transitive imports (e.g. 905_nkname asttest → tok); coupled to the
// -T flip (task #5/#10).
let target: *u8 = nil;
// #17: optional 2nd positional = fnmatch name-filter pattern, forwarded
// to the test binary as argv[1] (single-file/module only; dir-mode
// rejects). cstage twin: do_test `pattern`.
let patarg: *u8 = nil;
let incs: []u8 = alloc([], (os.PATH_MAX: u64) * 2u64)!;
incs.len = ((os.PATH_MAX: u64) * 2u64): i32;
let incoff: u64 = 0u64;
cstrseal(incs.ptr, 0u64);
// -c (compile-only) + -o <stem>: build the test binary + its lib/test-
// inclusive combined WITHOUT running it, for the byte-id gates. cstage
// twin: cmd/ww/main.c do_test (error wording identical).
let compileonly: i32 = 0;
let outstem: *u8 = nil;
let i: i32 = start;
for (i < argc) {
let p: *u8 = argv[i];
if (p[0u64] == 45u8) { // '-'
if (p[1u64] == 73u8) { // '-I'
let dir: *u8 = nil;
if (p[2u64] != 0u8) {
dir = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww test: -I needs an argument\n");
return 2;
};
i += 1;
dir = argv[i];
};
if (incoff > 0u64) {
incs[incoff] = 58u8; // ':'
incoff += 1u64;
};
incoff = cstrinto(incs.ptr, incoff, dir);
cstrseal(incs.ptr, incoff);
} else { if (p[1u64] == 99u8 && p[2u64] == 0u8) { // "-c"
compileonly = 1;
} else { if (p[1u64] == 111u8) { // '-o'
if (p[2u64] != 0u8) {
outstem = p + 2u64;
} else {
if (i + 1 >= argc) {
cerr("ww test: -o needs an argument\n");
return 2;
};
i += 1;
outstem = argv[i];
};
} else {
cerr("ww test: unknown flag\n");
return 2;
}; }; };
} else {
if (target == nil) { target = p; }
else { if (patarg == nil) { patarg = p; }; };
};
i += 1;
};
if (target == nil) {
let dot: [2]u8 = ['.': u8, 0u8];
target = &dot[0];
};
// single-file mode: literal *.ww that exists
if (cstrendswithlit(target, ".ww")) {
if (os.access(pathstr(target), 0i32) == 0) {
return runsingletest(selfdir, target, incs.ptr, compileonly, outstem, patarg);
};
};
if (compileonly != 0 || outstem != nil) {
cerr("ww test: -c/-o need a single test file\n");
return 2;
};
// #17: a name-filter pattern is per-binary; dir mode builds one binary
// per *_test.ww, so a single pattern can't route. cstage twin parity.
if (patarg != nil) {
cerr("ww test: pattern needs a single test file\n");
return 2;
};
// otherwise treat target as a directory; enumerate *_test.ww
return rundirtests(selfdir, target);
};
// ---- Entry -------------------------------------------------------------
export fn main(argc: i32, argv: **u8) i32 = {
if (argc < 1) {
writeusage(2);
return 2;
};
// selfdir = dirname(argv[0])
let selfdir: []u8 = alloc([], (os.PATH_MAX: u64))!;
selfdir.len = os.PATH_MAX;
selfdirinto(selfdir.ptr, (os.PATH_MAX: u64), argv[0]);
if (argc < 2) {
writeusage(2);
return 2;
};
let cmd: *u8 = argv[1];
if (cstreqlit(cmd, "-V")) { return doversion(); };
if (cstreqlit(cmd, "version")) { return doversion(); };
if (cstreqlit(cmd, "-h")) {
writeusage(1);
return 0;
};
if (cstreqlit(cmd, "--help")) {
writeusage(1);
return 0;
};
if (cstreqlit(cmd, "build")) {
return dobuild(selfdir.ptr, argv, argc, 2);
};
if (cstreqlit(cmd, "run")) {
return dorun(selfdir.ptr, argv, argc, 2);
};
if (cstreqlit(cmd, "test")) {
return dotest(selfdir.ptr, argv, argc, 2);
};
cerr("ww: unknown subcommand\n");
writeusage(2);
return 2;
};