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lib: extract rt module from os, sweep imports

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Hare puts runtime allocation in rt::, not os:: (ref/hare/rt/malloc.ha:27,
README). ww's `@symbol("rt_alloc") fn alloc(n: u64) *void;` lived at
lib/os/os.ww as a historical bootstrap shortcut; this commit relocates
it to a new lib/rt/malloc.ww and sweeps every site that depended on
`import os` for the alloc decl over to `import rt`.

This is commit 1 of 3 in the lib/rt extraction (#35):
  1. (this) move decl, sweep imports — preserves shape
  2. rename rt_alloc → rt_malloc (#38)
  3. nullable return type + OOM-propagating builtin lowering (#39)

No rename here. Symbol stays rt_alloc, function stays `alloc`, return
stays *void. Behavior identical — same ffi resolution outcome, just
sourced from a different module file. The rt::ensure runtime helper at
selfhost/rt/ensure.ww is its own compilation unit with a local decl and
is untouched.

Side effect: every wcc cgen file used `rt` as a local *node variable
name for "return type." `import rt;` shadows the module, so each
selfhost/cmd/wcc/{check,cgenstmt,cgenexpr,cgenutil}.ww site renamed
to `rtyp`. Mechanical follow-through; only the wcc module-import was
forced to do this rename.

Verified 132/132 + 995_self_rebuild byte-identity (5 wwstage tools
round-trip byte-identical).
This commit is contained in:
Hojun-Cho
2026-05-20 20:39:52 +09:00
parent a1ee817906
commit d68d3c7eb4
34 changed files with 530 additions and 488 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
lib/strings/strings.ww
View File

@@ -27,6 +27,7 @@ package strings;
import bytes;
import encoding.utf8;
import os;
import rt;
import types;
// toutf8 — borrowed []u8 view of `s`. ref/hare/strings/utf8.ha:29.
@@ -98,7 +99,7 @@ export fn dup(s: str) str = {
r.ptr = nil;
r.len = 0;
if (s.len == 0) { return r; };
let buf: *u8 = os.alloc(s.len: u64): *u8;
let buf: *u8 = rt.alloc(s.len: u64): *u8;
let i: i32 = 0;
for (i < s.len) { buf[i] = s[i]; i += 1; };
r.ptr = buf;
@@ -176,7 +177,7 @@ export fn concat(strs: str...) str = {
r.ptr = nil;
r.len = 0;
if (total == 0) { return r; };
let buf: *u8 = os.alloc(total: u64): *u8;
let buf: *u8 = rt.alloc(total: u64): *u8;
let off: i32 = 0;
i = 0;
for (i < strs.len) {
@@ -209,7 +210,7 @@ export fn join(delim: str, strs: str...) str = {
r.ptr = nil;
r.len = 0;
if (total == 0) { return r; };
let buf: *u8 = os.alloc(total: u64): *u8;
let buf: *u8 = rt.alloc(total: u64): *u8;
let off: i32 = 0;
i = 0;
for (i < strs.len) {
@@ -886,7 +887,7 @@ export fn lpad(s: str, p: rune, maxlen: i32) str = {
if (s.len >= maxlen) { return dup(s); };
let scratch: [4]u8;
let pad: []u8 = runebytes(scratch[0:4], p);
let buf: *u8 = os.alloc(maxlen: u64): *u8;
let buf: *u8 = rt.alloc(maxlen: u64): *u8;
let padwrite: i32 = (maxlen - s.len) * pad.len;
if (padwrite > maxlen) { padwrite = maxlen; };
let off: i32 = 0;
@@ -969,7 +970,7 @@ export fn rpad(s: str, p: rune, maxlen: i32) str = {
if (s.len >= maxlen) { return dup(s); };
let scratch: [4]u8;
let pad: []u8 = runebytes(scratch[0:4], p);
let buf: *u8 = os.alloc(maxlen: u64): *u8;
let buf: *u8 = rt.alloc(maxlen: u64): *u8;
let k: i32 = 0;
for (k < s.len) {
buf[k] = s[k];