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wcc+ww: //ww:module-reset boundary directive; package-less files keep module "" (#16 PREP-main)

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Driver twins emit the line-comment directive only before package-less
files (peekpackage==nil); both lexers tokenize it (TK_MODRESET, appended
=87 so existing token values hold) and both parsers reset curmod — a
package-less file's decls get module "" instead of inheriting the last
bundled package (the sticky-curmod leak, task #11). Withdrawn
alternative: injecting 'package main' flips non-entry symbols
bare->main-prefixed (FFI-visible, broke 764). Codegen-neutral by proof:
bare symbols preserved, both stages emit byte-identical asm for a
directive-bearing combined. Transitional until strict-package rejects
package-less files outright. Includes 737 bad-deep pin for the
PREP-peek >2048 edge + 904/toktest rows for the new token.
This commit is contained in:
Hojun-Cho
2026-06-10 14:07:35 +09:00
parent 2227d698c6
commit 49a5173f3f
17 changed files with 358 additions and 22 deletions
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28
cmd/wcc/lex.c
View File

@@ -95,6 +95,23 @@ skipws(Lex *l)
}
if (c == '/' && lpeek(l, 1) == '/') {
lget(l); lget(l); /* consume '//' */
/* #16 option-B: the driver emits `//ww:module-reset`
* before a package-less file's bytes; recognize the
* whole-line directive (without consuming differently)
* and flag it so lexnext emits TK_MODRESET. The body is
* then skipped like any comment. Mirrors the removed
* `// MODULE:` lexer directive. */
{
static const char dir[] = "ww:module-reset";
size_t i = 0;
while (dir[i] && lpeek(l, i) == dir[i])
i++;
if (dir[i] == '\0') {
int nx = lpeek(l, i);
if (nx == '\n' || nx < 0)
l->modreset = 1;
}
}
while ((c = lpeek(l, 0)) >= 0 && c != '\n')
lget(l);
continue;
@@ -381,12 +398,15 @@ lexrune(Lex *l, Pos start)
Tok
lexnext(Lex *l)
{
if (!skipws(l)) {
Pos p = lpos(l);
Tok t = (Tok){ TK_EOF, p, "", 0, {0}, TK_NONE };
int more = skipws(l);
Pos start = lpos(l);
/* A `//ww:module-reset` seen in the skipped run surfaces as its own
* token before the next real one (#16 option-B boundary reset). */
if (l->modreset) { l->modreset = 0; EMIT(TK_MODRESET); }
if (!more) {
Tok t = (Tok){ TK_EOF, start, "", 0, {0}, TK_NONE };
return t;
}
Pos start = lpos(l);
int c = lpeek(l, 0);
if (isidstart(c))

13
cmd/wcc/parse.c
View File

@@ -1363,6 +1363,19 @@ parsefile(Parser *p)
p->curmod = name;
continue;
}
/* `//ww:module-reset` — bundle boundary before a package-less
* file. Reset curmod to NULL so the file's decls (and its own
* `import os;`) are attributed to the primary module (""), not
* the preceding bundled package. Codegen-neutral: NULL curmod
* keeps bare symbols. (#16 option-B; closes task #11.)
* Driver-emitted ONLY before package-less files; a hand-placed
* directive after a mid-file `package` would strip subsequent
* decls to bare — that usage is deliberate-only. */
if (p->cur.kind == TK_MODRESET) {
advance(p);
p->curmod = NULL;
continue;
}
Node *attrs = parseattrs(p);
int exp = accept(p, TK_EXPORT);
Node *d = NULL;

1
cmd/wcc/tok.c
View File

@@ -103,6 +103,7 @@ tokname(Tkind k)
case TK_UNDER: return "_";
case TK_ENUM: return "enum";
case TK_MODULE: return "package";
case TK_MODRESET: return "//ww:module-reset";
case TK_LPAREN: return "(";
case TK_RPAREN: return ")";

7
cmd/wcc/ww.h
View File

@@ -180,6 +180,10 @@ typedef enum {
TK_YIELD, /* `yield expr;` — value-return from a match arm */
TK_ENUM, /* Hare-style `enum [storage] { ... }` type form */
TK_MODULE, /* `module foo;` — directory-as-module declaration */
TK_MODRESET, /* `//ww:module-reset` — driver bundle boundary: reset
* curmod to NULL before a package-less file's bytes
* (#16 option-B; the package-less-entry attribution fix
* that replaces the withdrawn `package main` inject). */
TK_LAST /* sentinel for tables */
} Tkind;
@@ -207,6 +211,9 @@ struct Lex {
i32 col;
Arena *a; /* token-text arena */
int errs;
int modreset; /* a `//ww:module-reset` directive was seen in
* the last skipped run; lexnext emits TK_MODRESET
* before the next real token. */
};
void lexinit(Lex*, Arena*, const char *file, const char *src, u64 len);

13
cmd/ww/main.c
View File

@@ -306,6 +306,19 @@ expand(FILE *out, const char *path, struct ImportSet *visited,
else expand(out, ipath, visited, libdir);
}
/* #16 option-B: a package-less file's decls would otherwise inherit
* the preceding bundled module's sticky curmod (parser parse.c). 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.) */
{
char pkg[128];
if (!peek_package(path, pkg, sizeof pkg))
fputs("//ww:module-reset\n", out);
}
rewind(in);
int ch;
while ((ch = fgetc(in)) != EOF) fputc(ch, out);

39
lib/ww/lex/lex.ww
View File

@@ -56,6 +56,9 @@ type lex = struct {
line: i32,
col: i32,
errs: i32,
// a `//ww:module-reset` directive was seen in the last skipped run;
// lexnext emits TK_MODRESET before the next real token (#16 opt-B).
modreset: i32,
};
export fn lexinit(l: *lex, file: str, src: *u8, len: u64) void = {
@@ -66,6 +69,7 @@ export fn lexinit(l: *lex, file: str, src: *u8, len: u64) void = {
l.line = 1;
l.col = 1;
l.errs = 0;
l.modreset = 0;
};
// srcb — byte at offset; helper that lifts the cast out of indexing.
@@ -127,6 +131,26 @@ fn skipws(l: *lex) bool = {
let c2: i32 = lpeek(l, 1u64);
if (c2 == '/') {
lget(l); lget(l); // consume '//'
// #16 opt-B: recognize the driver's curmod-reset
// boundary directive `//ww:module-reset` (whole
// line) and flag it; lexnext emits TK_MODRESET.
// The body is then skipped like any comment.
// Mirrors cstage lex.c skipws. Compare via lpeek
// (no consume) so the skip loop below is unchanged.
let dir: str = "ww:module-reset";
let di: i32 = 0;
let matched: bool = true;
for (di < dir.len) {
if (lpeek(l, di: u64) != dir[di]: i32) {
matched = false; break;
};
di += 1;
};
if (matched) {
let nx: i32 = lpeek(l, dir.len: u64);
if (nx == '\n') { l.modreset = 1; }
else { if (nx < 0) { l.modreset = 1; }; };
};
for (true) {
let cx: i32 = lpeek(l, 0u64);
if (cx < 0) { return false; };
@@ -629,12 +653,19 @@ export fn lexnext(l: *lex, out: *tok) void = {
out.text = empty;
out.tsuffix = empty;
if (!skipws(l)) {
let p: pos; curpos(l, &p);
emitsimple(&p, tkind.TK_EOF, out);
let more: bool = skipws(l);
let start: pos; curpos(l, &start);
// A `//ww:module-reset` seen in the skipped run surfaces as its own
// token before the next real one (#16 opt-B boundary reset).
if (l.modreset != 0) {
l.modreset = 0;
emitsimple(&start, tkind.TK_MODRESET, out);
return;
};
if (!more) {
emitsimple(&start, tkind.TK_EOF, out);
return;
};
let start: pos; curpos(l, &start);
let c: i32 = lpeek(l, 0u64);
if (c >= 0) {

6
lib/ww/lex/tok.ww
View File

@@ -118,7 +118,10 @@ type tkind = enum i32 {
TK_YIELD = 84,
TK_ENUM = 85,
TK_MODULE = 86, // `module foo;` — directory-as-module decl
TK_LAST = 87,
TK_MODRESET = 87, // `//ww:module-reset` driver bundle boundary:
// reset curmod to "" before a package-less file
// (#16 option-B; cstage TK_MODRESET twin)
TK_LAST = 88,
};
// ---- Pos / Tok --------------------------------------------------------
@@ -240,6 +243,7 @@ export fn tokname(k: tkind) str = {
case tkind.TK_UNDER: return "_";
case tkind.TK_ENUM: return "enum";
case tkind.TK_MODULE: return "package";
case tkind.TK_MODRESET: return "//ww:module-reset";
case tkind.TK_LPAREN: return "(";
case tkind.TK_RPAREN: return ")";

7
lib/ww/lex/toktest.ww
View File

@@ -128,11 +128,12 @@ fn checkname(k: tkind, want: str) void = {
signalled = 185; checkname(tkind.TK_ARROW, "->");
signalled = 186; checkname(tkind.TK_FATARROW, "=>");
signalled = 187; checkname(tkind.TK_LAST, "<last>");
signalled = 187; checkname(tkind.TK_MODRESET, "//ww:module-reset");
signalled = 188; checkname(tkind.TK_LAST, "<last>");
// Unknown kind → the post-switch fallback. TK_LAST is the highest
// named value (87); 88 is out of band, exercising the "<?>" tail.
signalled = 188; checkname(88: tkind, "<?>");
// named value (88); 89 is out of band, exercising the "<?>" tail.
signalled = 189; checkname(89: tkind, "<?>");
};
fn checkkw(s: str, want: tkind) void = {

16
lib/ww/parse/parse.ww
View File

@@ -411,6 +411,22 @@ export fn parsefile(p: *parser) *node = {
p.curmod = name;
continue;
};
// `//ww:module-reset` — bundle boundary before a package-less
// file. Reset curmod to "" so the file's decls (and its own
// `import os;`) are attributed to the primary module, not the
// preceding bundled package. Codegen-neutral: "" curmod keeps
// bare symbols. (#16 option-B; closes task #11.)
// Driver-emitted ONLY before package-less files; a hand-placed
// directive after a mid-file `package` would strip subsequent
// decls to bare — that usage is deliberate-only.
if (p.curkind == tkind.TK_MODRESET) {
advance(p);
let empty: str;
empty.ptr = nil;
empty.len = 0;
p.curmod = empty;
continue;
};
let attrs = parseattrs(p);
let exported: i32 = 0;
if (p.curkind == tkind.TK_EXPORT) { exported = 1; advance(p); };

61
selfhost/cmd/w6c/main.combined.ww
View File

@@ -6441,7 +6441,10 @@ type tkind = enum i32 {
TK_YIELD = 84,
TK_ENUM = 85,
TK_MODULE = 86, // `module foo;` — directory-as-module decl
TK_LAST = 87,
TK_MODRESET = 87, // `//ww:module-reset` driver bundle boundary:
// reset curmod to "" before a package-less file
// (#16 option-B; cstage TK_MODRESET twin)
TK_LAST = 88,
};
// ---- Pos / Tok --------------------------------------------------------
@@ -6563,6 +6566,7 @@ export fn tokname(k: tkind) str = {
case tkind.TK_UNDER: return "_";
case tkind.TK_ENUM: return "enum";
case tkind.TK_MODULE: return "package";
case tkind.TK_MODRESET: return "//ww:module-reset";
case tkind.TK_LPAREN: return "(";
case tkind.TK_RPAREN: return ")";
@@ -6775,6 +6779,9 @@ type lex = struct {
line: i32,
col: i32,
errs: i32,
// a `//ww:module-reset` directive was seen in the last skipped run;
// lexnext emits TK_MODRESET before the next real token (#16 opt-B).
modreset: i32,
};
export fn lexinit(l: *lex, file: str, src: *u8, len: u64) void = {
@@ -6785,6 +6792,7 @@ export fn lexinit(l: *lex, file: str, src: *u8, len: u64) void = {
l.line = 1;
l.col = 1;
l.errs = 0;
l.modreset = 0;
};
// srcb — byte at offset; helper that lifts the cast out of indexing.
@@ -6846,6 +6854,26 @@ fn skipws(l: *lex) bool = {
let c2: i32 = lpeek(l, 1u64);
if (c2 == '/') {
lget(l); lget(l); // consume '//'
// #16 opt-B: recognize the driver's curmod-reset
// boundary directive `//ww:module-reset` (whole
// line) and flag it; lexnext emits TK_MODRESET.
// The body is then skipped like any comment.
// Mirrors cstage lex.c skipws. Compare via lpeek
// (no consume) so the skip loop below is unchanged.
let dir: str = "ww:module-reset";
let di: i32 = 0;
let matched: bool = true;
for (di < dir.len) {
if (lpeek(l, di: u64) != dir[di]: i32) {
matched = false; break;
};
di += 1;
};
if (matched) {
let nx: i32 = lpeek(l, dir.len: u64);
if (nx == '\n') { l.modreset = 1; }
else { if (nx < 0) { l.modreset = 1; }; };
};
for (true) {
let cx: i32 = lpeek(l, 0u64);
if (cx < 0) { return false; };
@@ -7348,12 +7376,19 @@ export fn lexnext(l: *lex, out: *tok) void = {
out.text = empty;
out.tsuffix = empty;
if (!skipws(l)) {
let p: pos; curpos(l, &p);
emitsimple(&p, tkind.TK_EOF, out);
let more: bool = skipws(l);
let start: pos; curpos(l, &start);
// A `//ww:module-reset` seen in the skipped run surfaces as its own
// token before the next real one (#16 opt-B boundary reset).
if (l.modreset != 0) {
l.modreset = 0;
emitsimple(&start, tkind.TK_MODRESET, out);
return;
};
if (!more) {
emitsimple(&start, tkind.TK_EOF, out);
return;
};
let start: pos; curpos(l, &start);
let c: i32 = lpeek(l, 0u64);
if (c >= 0) {
@@ -8913,6 +8948,22 @@ export fn parsefile(p: *parser) *node = {
p.curmod = name;
continue;
};
// `//ww:module-reset` — bundle boundary before a package-less
// file. Reset curmod to "" so the file's decls (and its own
// `import os;`) are attributed to the primary module, not the
// preceding bundled package. Codegen-neutral: "" curmod keeps
// bare symbols. (#16 option-B; closes task #11.)
// Driver-emitted ONLY before package-less files; a hand-placed
// directive after a mid-file `package` would strip subsequent
// decls to bare — that usage is deliberate-only.
if (p.curkind == tkind.TK_MODRESET) {
advance(p);
let empty: str;
empty.ptr = nil;
empty.len = 0;
p.curmod = empty;
continue;
};
let attrs = parseattrs(p);
let exported: i32 = 0;
if (p.curkind == tkind.TK_EXPORT) { exported = 1; advance(p); };

13
selfhost/cmd/ww/main.combined.ww
View File

@@ -3315,6 +3315,19 @@ fn expand(c: *expctx, pathcs: *u8) void = {
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);
};

13
selfhost/cmd/ww/main.ww
View File

@@ -529,6 +529,19 @@ fn expand(c: *expctx, pathcs: *u8) void = {
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);
};

61
selfhost/cmd/wwdump/main.combined.ww
View File

@@ -6441,7 +6441,10 @@ type tkind = enum i32 {
TK_YIELD = 84,
TK_ENUM = 85,
TK_MODULE = 86, // `module foo;` — directory-as-module decl
TK_LAST = 87,
TK_MODRESET = 87, // `//ww:module-reset` driver bundle boundary:
// reset curmod to "" before a package-less file
// (#16 option-B; cstage TK_MODRESET twin)
TK_LAST = 88,
};
// ---- Pos / Tok --------------------------------------------------------
@@ -6563,6 +6566,7 @@ export fn tokname(k: tkind) str = {
case tkind.TK_UNDER: return "_";
case tkind.TK_ENUM: return "enum";
case tkind.TK_MODULE: return "package";
case tkind.TK_MODRESET: return "//ww:module-reset";
case tkind.TK_LPAREN: return "(";
case tkind.TK_RPAREN: return ")";
@@ -6775,6 +6779,9 @@ type lex = struct {
line: i32,
col: i32,
errs: i32,
// a `//ww:module-reset` directive was seen in the last skipped run;
// lexnext emits TK_MODRESET before the next real token (#16 opt-B).
modreset: i32,
};
export fn lexinit(l: *lex, file: str, src: *u8, len: u64) void = {
@@ -6785,6 +6792,7 @@ export fn lexinit(l: *lex, file: str, src: *u8, len: u64) void = {
l.line = 1;
l.col = 1;
l.errs = 0;
l.modreset = 0;
};
// srcb — byte at offset; helper that lifts the cast out of indexing.
@@ -6846,6 +6854,26 @@ fn skipws(l: *lex) bool = {
let c2: i32 = lpeek(l, 1u64);
if (c2 == '/') {
lget(l); lget(l); // consume '//'
// #16 opt-B: recognize the driver's curmod-reset
// boundary directive `//ww:module-reset` (whole
// line) and flag it; lexnext emits TK_MODRESET.
// The body is then skipped like any comment.
// Mirrors cstage lex.c skipws. Compare via lpeek
// (no consume) so the skip loop below is unchanged.
let dir: str = "ww:module-reset";
let di: i32 = 0;
let matched: bool = true;
for (di < dir.len) {
if (lpeek(l, di: u64) != dir[di]: i32) {
matched = false; break;
};
di += 1;
};
if (matched) {
let nx: i32 = lpeek(l, dir.len: u64);
if (nx == '\n') { l.modreset = 1; }
else { if (nx < 0) { l.modreset = 1; }; };
};
for (true) {
let cx: i32 = lpeek(l, 0u64);
if (cx < 0) { return false; };
@@ -7348,12 +7376,19 @@ export fn lexnext(l: *lex, out: *tok) void = {
out.text = empty;
out.tsuffix = empty;
if (!skipws(l)) {
let p: pos; curpos(l, &p);
emitsimple(&p, tkind.TK_EOF, out);
let more: bool = skipws(l);
let start: pos; curpos(l, &start);
// A `//ww:module-reset` seen in the skipped run surfaces as its own
// token before the next real one (#16 opt-B boundary reset).
if (l.modreset != 0) {
l.modreset = 0;
emitsimple(&start, tkind.TK_MODRESET, out);
return;
};
if (!more) {
emitsimple(&start, tkind.TK_EOF, out);
return;
};
let start: pos; curpos(l, &start);
let c: i32 = lpeek(l, 0u64);
if (c >= 0) {
@@ -8913,6 +8948,22 @@ export fn parsefile(p: *parser) *node = {
p.curmod = name;
continue;
};
// `//ww:module-reset` — bundle boundary before a package-less
// file. Reset curmod to "" so the file's decls (and its own
// `import os;`) are attributed to the primary module, not the
// preceding bundled package. Codegen-neutral: "" curmod keeps
// bare symbols. (#16 option-B; closes task #11.)
// Driver-emitted ONLY before package-less files; a hand-placed
// directive after a mid-file `package` would strip subsequent
// decls to bare — that usage is deliberate-only.
if (p.curkind == tkind.TK_MODRESET) {
advance(p);
let empty: str;
empty.ptr = nil;
empty.len = 0;
p.curmod = empty;
continue;
};
let attrs = parseattrs(p);
let exported: i32 = 0;
if (p.curkind == tkind.TK_EXPORT) { exported = 1; advance(p); };

40
test/wcc/737_direnum.c
View File

@@ -133,6 +133,46 @@ main(void)
}
}
/* bad-deep: same mismatch, but one file's `package` decl sits behind
* a >2048-byte comment header. Pins the PREP-peek whole-file read
* (#16): the old 2048-capped peek missed that decl, so the strict-
* same-package check skipped the file and the mismatch went
* undetected (build wrongly succeeded); the whole-file peek finds it
* → "differs from". Both stages. (reviewer-batcha pin.) */
{
const char *src = "test/wcc/data/direnum/bad_deep_entry.ww";
snprintf(errp, sizeof errp, "/tmp/direnum_%d_baddeep.err", getpid());
char cmd[2048];
snprintf(cmd, sizeof cmd, "%s build %s 2>%s >/dev/null",
ww, src, errp);
int rc = runwait(cmd);
total++;
if (rc == 0) {
fprintf(stderr, "737[bad-deep-cstage]: expected build failure, succeeded\n");
fail++;
} else if (!stderr_contains(errp, "differs from")) {
fprintf(stderr, "737[bad-deep-cstage]: stderr missing 'differs from'\n");
fail++;
}
unlink(errp);
if (access(ww_ww, X_OK) == 0) {
snprintf(cmd, sizeof cmd, "%s build %s 2>%s >/dev/null",
ww_ww, src, errp);
rc = runwait(cmd);
total++;
if (rc == 0) {
fprintf(stderr, "737[bad-deep-wwstage]: expected build failure, succeeded\n");
fail++;
} else if (!stderr_contains(errp, "differs from")) {
fprintf(stderr, "737[bad-deep-wwstage]: stderr missing 'differs from'\n");
fail++;
}
unlink(errp);
}
}
if (fail) {
fprintf(stderr, "737_direnum: %d/%d fixtures failed\n", fail, total);
return 1;

5
test/wcc/data/direnum/bad_deep_entry.ww Normal file
View File

@@ -0,0 +1,5 @@
package main;
import bad_deep_pkg;
export fn main() i32 = { return 0; };

3
test/wcc/data/direnum/bad_deep_pkg/a.ww Normal file
View File

@@ -0,0 +1,3 @@
package alpha;
fn aaa() i32 = { return 1; };

54
test/wcc/data/direnum/bad_deep_pkg/b.ww Normal file
View File

@@ -0,0 +1,54 @@
// b.ww — #16 PREP-main peek-edge pin (reviewer-batcha).
// This file's `package beta;` decl sits behind a comment header
// longer than 2048 bytes ON PURPOSE: the old wwstage peekpackage
// capped its read at 2048 bytes and would MISS the package decl
// (return nil), so the strict-same-package dir-enum check would
// skip this file and the alpha/beta mismatch would go undetected
// (build wrongly succeeds). The PREP-peek whole-file read finds
// `package beta;`, so the mismatch fires 'differs from' and the
// build fails — which is what 737's bad_deep family asserts on
// both stages. Do not shorten this header below 2048 bytes.
//
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
// padding line to push the package decl past the 2048-byte peek window.
package beta;
fn bbb() i32 = { return 2; };