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Reimplement 'parent' construct as variable $parent.
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This commit also adds new controls to variables, which prevents from re-assigning a value when set. Thanks to that, both $this and $parent cannot be overwritten by using OP_STORE instruction. Other instructions still need some
work.
This commit is contained in:
Rafal Kupiec
2019-05-08 08:26:48 +02:00
parent 0c8ca53f70
commit 07bd3ceec3
3 changed files with 28 additions and 20 deletions
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engine/memobj.c
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@@ -401,7 +401,7 @@ PH7_PRIVATE sxi32 PH7_CheckVarCompat(ph7_value *pObj, int nType) {
* destination are of the compatible data types.
*/
PH7_PRIVATE sxi32 PH7_MemObjSafeStore(ph7_value *pSrc, ph7_value *pDest) {
if(pDest->iFlags == 0 || pDest->iFlags == pSrc->iFlags) {
if(pDest->iFlags == 0 || ((pDest->iFlags | MEMOBJ_FIXEDVAL | MEMOBJ_PARENTOBJ) == (pSrc->iFlags | MEMOBJ_FIXEDVAL | MEMOBJ_PARENTOBJ))) {
PH7_MemObjStore(pSrc, pDest);
} else if(pDest->iFlags & MEMOBJ_MIXED) {
if(pDest->iFlags & MEMOBJ_HASHMAP) {