Gabriel Ivăncescu : jscript: Use ~0 to mark invalid bucket.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5842ec60e26dae52d4426a404625da33baf21729
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5842ec60e26dae52d4426a404...

Author: Gabriel Ivăncescu 
Date:   Wed Nov 24 16:10:35 2021 +0200

jscript: Use ~0 to mark invalid bucket.

Signed-off-by: Gabriel Ivăncescu 
Signed-off-by: Jacek Caban 
Signed-off-by: Alexandre Julliard

---

dlls/jscript/dispex.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/dlls/jscript/dispex.c b/dlls/jscript/dispex.c
index 6e1463b1e00..eba3b738b12 100644
--- a/dlls/jscript/dispex.c
+++ b/dlls/jscript/dispex.c
@@ -181,8 +181,8 @@ static inline HRESULT resize_props(jsdisp_t *This)
     This->props = props;

for(i=0; i<This->buf_size; i++) {
-        This->props[i].bucket_head = 0;
-        This->props[i].bucket_next = 0;
+        This->props[i].bucket_head = ~0;
+        This->props[i].bucket_next = ~0;
     }

for(i=1; i<This->prop_cnt; i++) {
@@ -233,14 +233,14 @@ static dispex_prop_t *alloc_protref(jsdisp_t *This, const WCHAR *name, DWORD ref
 static HRESULT find_prop_name(jsdisp_t *This, unsigned hash, const WCHAR *name, dispex_prop_t **ret)
 {
     const builtin_prop_t *builtin;
-    unsigned bucket, pos, prev = 0;
+    unsigned bucket, pos, prev = ~0;
     dispex_prop_t *prop;

bucket = get_props_idx(This, hash);
     pos = This->props[bucket].bucket_head;
-    while(pos != 0) {
+    while(pos != ~0) {
         if(!wcscmp(name, This->props[pos].name)) {
-            if(prev != 0) {
+            if(prev != ~0) {
                 This->props[prev].bucket_next = This->props[pos].bucket_next;
                 This->props[pos].bucket_next = This->props[bucket].bucket_head;
                 This->props[bucket].bucket_head = pos;
@@ -1423,7 +1423,7 @@ static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LC

/* If two identifiers differ only by case, the TypeInfo fails */
         pos = This->props[get_props_idx(This, prop->hash)].bucket_head;
-        while (pos)
+        while (pos != ~0)
         {
             cur = This->props + pos;

@@ -1795,6 +1795,8 @@ jsdisp_t *to_jsdisp(IDispatch *disp)

HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *builtin_info, jsdisp_t *prototype)
 {
+    unsigned i;
+
     TRACE("%p (%p)\n", dispex, prototype);

dispex->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
@@ -1806,6 +1808,11 @@ HRESULT init_dispex(jsdisp_t *dispex, script_ctx_t *ctx, const builtin_info_t *b
     if(!dispex->props)
         return E_OUTOFMEMORY;

+    for(i = 0; i < dispex->buf_size; i++) {
+        dispex->props[i].bucket_head = ~0;
+        dispex->props[i].bucket_next = ~0;
+    }
+
     dispex->prototype = prototype;
     if(prototype)
         jsdisp_addref(prototype);