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fix: 写槽 resolve 只追显式软链接（handle_call 二次调用写回旧值） #125

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Merged
miaobyte merged 1 commit into from
Aug 29, 2026
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fix: 写槽 resolve 只追显式软链接（handle_call 二次调用写回旧值） #125

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19 changes: 11 additions & 8 deletions runtime/src/builtin.c
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Original file line number Diff line number Diff line change
Expand Up @@ -158,16 +158,19 @@ char *kvlangBuiltinResolveWriteSlot(kvlangKv_t *kv, const char *frame_path, cons
kvlangXvalue_t av; kvlangXvalueZero(&av);
kvlangKvGetOne(kv, ak.p, &av);
if (!kvlangXvalueNone(&av)) {
/* 只追显式软链接（ptr, ref==1）链；av 是 handle_call 已 resolve 好的
* 最终写目标路径（普通 char），直接取字符串，勿再按值读下一跳——
* 否则会把已写数据（char）误当路径再追，导致二次调用写回旧值。 */
kvlangXvalue_t v = av; av.data = NULL; av.len = 0;
for (;;) {
if (!kvlangXvalueIsCharKind(kvlangXvalueKind(&v))) break;
char *p = kvlangXvalueValueString(&v);
kvlangXvalue_t next; kvlangXvalueZero(&next);
kvlangKvGetOne(kv, p, &next);
if (kvlangXvalueNone(&next) || !kvlangXvalueIsCharKind(kvlangXvalueKind(&next))) { result = p; break; }
free(p);
kvlangXvalueFree(&v); v = next;
while (kvlangXvalueIsPtr(&v)) {
char *np = kvlangXvaluePtrTarget(&v);
kvlangXvalue_t nxt; kvlangXvalueZero(&nxt);
kvlangKvGetOne(kv, np, &nxt);
free(np);
kvlangXvalueFree(&v);
v = nxt;
}
if (!kvlangXvalueNone(&v)) result = kvlangXvalueValueString(&v);
kvlangXvalueFree(&v);
}
kvlangXvalueFree(&av); kvlangStrbufFree(&ak);
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