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lib/ww + wcc + w6c + wwdump: strip *arena cascade (γ-6)

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amalloc has 0 callers post-γ-2; the *arena threaded through
newnode/newscope/newtype/prim/typesinit/type{ptr,slice,array,chan,
named}/lexinit/parserinit/joindotted/checkinit/arenau64tos/cgeninit
and the scope.a / tctx.a / lex.a / parser.a / checker.a / cgen.a
fields are vestigial.

Drop `import mem;` from 15 files, remove six struct fields, strip
*arena from 14 signatures, update ~120 call sites across lib/ww +
wcc + w6c + wwdump. selfhost/test/sym_link.ww fixture drops the
newarena/freearena probe; still exits 42 on scopedefine/scopelookup.
Both main.combined.ww auto-regenerated.

Comments retidied: typ.ww "once per arena" → "once per program";
parse.ww drops "arena-build" qualifier on joindotted; sym.ww drops
mem-sibling-imports rationale.

Verified 132/132 incl. 994_w6c_ww + 995_self_rebuild byte-identity
(the primary symmetric-stages gate).
This commit is contained in:
Hojun-Cho
2026-05-21 13:01:57 +09:00
parent f83e65b82a
commit 353dffb5e8
19 changed files with 543 additions and 824 deletions
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11
selfhost/test/sym_link.ww
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@@ -1,20 +1,16 @@
// selfhost/test/sym_link.ww — link-and-run probe for the ww-cgen
// against the sym/typ/ast/mem dep stack. Exercises arena (mem),
// hashtable scope (sym), and pulls in typ/ast as type carriers.
// against the sym/typ/ast dep stack. Exercises hashtable scope
// (sym), and pulls in typ/ast as type carriers.
// Returns 42 on success; smaller values name the probe that broke.
package test;
import mem;
import typ;
import ast;
import sym;
export fn main() i32 = {
let a: *arena = newarena();
if (a == nil) { return 1; };
let s: *scope = newscope(a, nil);
let s: *scope = newscope(nil);
if (s == nil) { return 2; };
let n1: str = "foo";
@@ -42,6 +38,5 @@ export fn main() i32 = {
let l3: *sym = scopelookup(s, n3);
if (l3 != nil) { return 10; };
freearena(a);
return 42;
};