[PATCH v4 0/1] MR3579: oleaut32: Implement ICreateTypeLib2 DeleteTypeInfo

[Alistair Leslie-Hughes (＠alesliehughes)]

--
  v4: oleaut32: Implement ICreateTypeLib2 DeleteTypeInfo

https://gitlab.winehq.org/wine/wine/-/merge_requests/3579

[PATCH v4 1/1] oleaut32: Implement ICreateTypeLib2 DeleteTypeInfo

[Alistair Leslie-Hughes]

From: Alistair Leslie-Hughes

---
 dlls/oleaut32/tests/typelib.c | 46 +++++++++++++++++++++++++++++++++++
 dlls/oleaut32/typelib.c       | 25 +++++++++++++++++--
 2 files changed, 69 insertions(+), 2 deletions(-)

diff --git a/dlls/oleaut32/tests/typelib.c b/dlls/oleaut32/tests/typelib.c
index 153964e17d5..037ede4e3ec 100644
--- a/dlls/oleaut32/tests/typelib.c
+++ b/dlls/oleaut32/tests/typelib.c
@@ -8589,6 +8589,51 @@ static void test_dep( SYSKIND sys )
     winetest_pop_context();
 }

+static void test_DeleteTypeInfo(void)
+{
+    static OLECHAR interface1W[] = L"interface1";
+    static OLECHAR interface2W[] = L"interface2";
+    ICreateTypeInfo *createti;
+    ICreateTypeLib2 *createtl;
+    ICreateTypeInfo2 *createti2;
+    WCHAR filenameW[MAX_PATH];
+    ITypeLib *stdole;
+    HRESULT hr;
+
+    hr = LoadTypeLib(L"stdole2.tlb", &stdole);
+    ok(hr == S_OK, "Failed to load stdole2, hr %#lx.\n", hr);
+
+    GetTempFileNameW(L".", L"tlb", 0, filenameW);
+
+    hr = CreateTypeLib2(SYS_WIN32, filenameW, &createtl);
+    ok(hr == S_OK, "Failed to create instance, hr %#lx.\n", hr);
+
+    hr = ICreateTypeLib2_CreateTypeInfo(createtl, interface1W, TKIND_INTERFACE, &createti);
+    ok(hr == S_OK, "Failed to create instance, hr %#lx.\n", hr);
+    hr = ICreateTypeInfo_QueryInterface(createti, &IID_ICreateTypeInfo2, (void **)&createti2);
+    ok(hr == S_OK, "Failed to get interface, hr %#lx.\n", hr);
+    ICreateTypeInfo_Release(createti);
+
+    /* Reference to ICreateTypeInfo still exists */
+    hr = ICreateTypeLib2_DeleteTypeInfo(createtl, interface1W);
+    ok(hr == E_FAIL, "got %08lx\n", hr);
+
+    ICreateTypeInfo2_Release(createti2);
+
+    hr = ICreateTypeLib2_DeleteTypeInfo(createtl, NULL);
+    ok(hr == E_INVALIDARG, "got %08lx\n", hr);
+
+    hr = ICreateTypeLib2_DeleteTypeInfo(createtl, interface2W);
+    ok(hr == TYPE_E_ELEMENTNOTFOUND, "got %08lx\n", hr);
+
+    hr = ICreateTypeLib2_DeleteTypeInfo(createtl, interface1W);
+    ok(hr == S_OK, "got %08lx\n", hr);
+
+    ITypeLib_Release(stdole);
+
+    DeleteFileW(filenameW);
+}
+
 static void test_DeleteImplType(void)
 {
     static OLECHAR interface1W[] = L"interface1";
@@ -8804,6 +8849,7 @@ START_TEST(typelib)
     test_LoadRegTypeLib();
     test_GetLibAttr();
     test_stub();
+    test_DeleteTypeInfo();
     test_DeleteImplType();
     test_DeleteFuncDesc();
 }
diff --git a/dlls/oleaut32/typelib.c b/dlls/oleaut32/typelib.c
index c4f00ca5bea..7e21dad3ff1 100644
--- a/dlls/oleaut32/typelib.c
+++ b/dlls/oleaut32/typelib.c
@@ -10329,8 +10329,29 @@ static HRESULT WINAPI ICreateTypeLib2_fnDeleteTypeInfo(ICreateTypeLib2 *iface,
         LPOLESTR name)
 {
     ITypeLibImpl *This = impl_from_ICreateTypeLib2(iface);
-    FIXME("%p %s - stub\n", This, wine_dbgstr_w(name));
-    return E_NOTIMPL;
+    int i;
+    TRACE("%p %s\n", This, wine_dbgstr_w(name));
+
+    if (!name)
+        return E_INVALIDARG;
+
+    for (i = 0; i < This->TypeInfoCount; ++i)
+    {
+        if (!lstrcmpiW(TLB_get_bstr(This->typeinfos[i]->Name), name))
+        {
+            if (This->typeinfos[i]->ref >= 1)
+                return E_FAIL;
+
+            ITypeInfoImpl_Destroy(This->typeinfos[i]);
+            This->TypeInfoCount--;
+            if (i < This->TypeInfoCount)
+                memmove(This->typeinfos + i, This->typeinfos + i + 1, (This->TypeInfoCount - i) *
+                    sizeof(*This->typeinfos));
+            return S_OK;
+        }
+    }
+
+    return TYPE_E_ELEMENTNOTFOUND;
 }

static HRESULT WINAPI ICreateTypeLib2_fnSetCustData(ICreateTypeLib2 *iface,