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wcc: forrange bindings get a per-loop scope; dup binders reject

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The TODO(#11) silent-accept of `for (let (a, a) .. xs)` rested on a
stale premise -- resolvewalk has per-block scopes since #53 and IS
the live w6c_ww checker pass. Bindings now install in a per-LOOP
scope (the N_MCASE pattern), so a duplicate name within one pattern
errs "redeclared in same scope" (cstage parity via stamptuplebinds'
scopedefine-nil check) while sequential same-name loops stay legal.
kwtab restores its stated alphabetical order (`import` before `is`,
both stages, kinds swapped in lockstep with names).
This commit is contained in:
Hojun-Cho
2026-08-09 01:59:33 +09:00
parent 411515a83b
commit 999b110001
5 changed files with 45 additions and 20 deletions
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8
internal/wwfixture/types.ww
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@@ -1,13 +1,13 @@
package wwfixture;
def protocolversion: i32 = 1;
def corpuscount: i32 = 1758;
def errorcount: i32 = 351;
def corpuscount: i32 = 1759;
def errorcount: i32 = 352;
def compilecount: i32 = 21;
def runcount: i32 = 209;
def runexitcount: i32 = 1177;
def nativecount: i32 = 3516;
def corpushash: str = "ab5ae796c10e476af0c1f40e0d0b216b3eb708f62b6ee17aafcf79d5e1dd8a69";
def nativecount: i32 = 3518;
def corpushash: str = "38613db49b4c87a14d87fb9392e5500e17cc0c95767fb31d8eb9bc4fe2bf74c5";
type directive = enum i32 {
ERROR = 0,