Hello, Andreas!
I found a strange problem with instantiating the script class from C++.
I'm getting the constructor of the required class using this function:
asIScriptFunction* getConstructorByDeclaration(
asITypeInfo *pTypeInfo, const std::string& sDeclaration) {
int nCount = pTypeInfo->GetBehaviourCount();
for (int i = 0; i < nCount; i++) {
asEBehaviours nBehaviour;
asIScriptFunction *pFunction =
pTypeInfo->GetBehaviourByIndex(i, &nBehaviour);
if (pFunction != nullptr && nBehaviour == asBEHAVE_CONSTRUCT) {
if (pFunction->GetDeclaration(false) == sDeclaration) {
return pFunction;
}
}
}
return nullptr;
}
And I'm trying to construct an instance of the class like this one:
namespace test
{
// Item
//
//
//
class Item : ItemParent {
private string m_sZZZ;
Item(Vector &in v, const string &in sName, const string &in sValue = "") {
...
}
...
}
}
But on calling the constructor the context->Execute() exits with an asEXECUTION_EXCEPTION.
Exception is "Null pointer access" and it's occurred at 9:17 in function "Item".
But 9:17 is a line
private string m_sZZZ;
in the Item class.
So it seems that the Execute() routine doesn't like the string variable declaration in class!
If I move this declaration to parent class (ItemParent in my example) an exception is generated in ItemParent.
To be sure I checked the code in AS_DEBUG folder and it shows that 9:17 is actually a variable declaration (if I understood the code properly).
Item::Item(Vector&in, const string&in, const string&in = "")
Temps: 11, 21, 31, 41, 45
Variables:
-002: Vector& v
-004: const string& sName
-006: const string& sValue
010: string sRealname
000: Item this
021: string {noname}
031: string {noname}
041: string {noname}
045: Vector {noname}
- 9,17 -
VarDecl 0
VarDecl 1
VarDecl 2
0 45 * SUSPEND
1 45 * PshVPtr v0
2 47 * ADDSi v212, 134217821
4 47 * ALLOC 0x463ad90, 20 (type:string, string::string())
...When I construct instances of these classes (Item or ItemParent) from the script code - all works properly.
I checked the parameters I pass to constructor by moving string variable to ItemParent and printing parameters in Item before calling parent constructor: all params are OK, but exception is still here.
I suspect that something is wrong inside the AS library.
Many thanks!
