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GetTypeAttr should deep copy the typedesc.

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Huw Davies 2004-12-08 19:32:28 +00:00 committed by Alexandre Julliard
parent 6a78c16aac
commit 3dc64fc541
1 changed files with 50 additions and 0 deletions
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50
dlls/oleaut32/typelib.c
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@ -1331,6 +1331,50 @@ static void TLB_Free(void * ptr)
HeapFree(GetProcessHeap(), 0, ptr);
}
/* deep copy a typedesc */
static void copy_typedesc(TYPEDESC *out, const TYPEDESC *in)
{
out->vt = in->vt;
switch(in->vt) {
case VT_PTR:
out->u.lptdesc = HeapAlloc(GetProcessHeap(), 0, sizeof(TYPEDESC));
copy_typedesc(out->u.lptdesc, in->u.lptdesc);
break;
case VT_USERDEFINED:
out->u.hreftype = in->u.hreftype;
break;
case VT_CARRAY:
out->u.lpadesc = HeapAlloc(GetProcessHeap(), 0, sizeof(ARRAYDESC) +
(in->u.lpadesc->cDims - 1) * sizeof(SAFEARRAYBOUND));
copy_typedesc(&out->u.lpadesc->tdescElem, &in->u.lpadesc->tdescElem);
out->u.lpadesc->cDims = in->u.lpadesc->cDims;
memcpy(out->u.lpadesc->rgbounds, in->u.lpadesc->rgbounds, in->u.lpadesc->cDims * sizeof(SAFEARRAYBOUND));
break;
default:
break;
}
}
/* free()s any allocated memory pointed to by the tdesc. NB does not
free the tdesc itself - this is because the tdesc is typically part
of a larger structure */
static void free_deep_typedesc(TYPEDESC *tdesc)
{
switch(tdesc->vt) {
case VT_PTR:
free_deep_typedesc(tdesc->u.lptdesc);
HeapFree(GetProcessHeap(), 0, tdesc->u.lptdesc);
tdesc->u.lptdesc = NULL;
break;
case VT_CARRAY:
free_deep_typedesc(&tdesc->u.lpadesc->tdescElem);
HeapFree(GetProcessHeap(), 0, tdesc->u.lpadesc);
tdesc->u.lpadesc = NULL;
break;
default:
break;
}
}
/**********************************************************************
*
@ -4129,6 +4173,10 @@ static HRESULT WINAPI ITypeInfo_fnGetTypeAttr( ITypeInfo2 *iface,
TRACE("(%p)\n",This);
*ppTypeAttr = HeapAlloc(GetProcessHeap(), 0, sizeof(**ppTypeAttr));
memcpy(*ppTypeAttr, &This->TypeAttr, sizeof(**ppTypeAttr));
if(This->TypeAttr.typekind == TKIND_ALIAS) /* need to deep copy typedesc */
copy_typedesc(&(*ppTypeAttr)->tdescAlias, &This->TypeAttr.tdescAlias);
if((*ppTypeAttr)->typekind == TKIND_DISPATCH && (*ppTypeAttr)->wTypeFlags & TYPEFLAG_FDUAL) {
(*ppTypeAttr)->cFuncs = (*ppTypeAttr)->cbSizeVft / 4; /* This should include all the inherited
funcs */
@ -5182,6 +5230,8 @@ static void WINAPI ITypeInfo_fnReleaseTypeAttr( ITypeInfo2 *iface,
{
ITypeInfoImpl *This = (ITypeInfoImpl *)iface;
TRACE("(%p)->(%p)\n", This, pTypeAttr);
if(This->TypeAttr.typekind == TKIND_ALIAS)
free_deep_typedesc(&pTypeAttr->tdescAlias);
HeapFree(GetProcessHeap(), 0, pTypeAttr);
}