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Add check for smart pointer type in generated code for director connection. This fixes a crash in the generated code caused by the dynamic_cast returning 0 because the specified types are incorrect for smart pointer types.

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Add runtime test to the C# test suite's director smartptr test that demonstrates crash in generated code when directors are used with smart pointer types.

Closes #34
This commit is contained in:
Brant K. Kyser 2013-04-15 13:38:40 -05:00 • committed by William S Fulton
commit 25eaee49f3
2 changed files with 53 additions and 2 deletions
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41
Examples/test-suite/csharp/director_smartptr_runme.cs Normal file
View file

@ -0,0 +1,41 @@
using director_smartptrNamespace;
public class runme
{
private class director_smartptr_MyBarFoo : Foo
{
public override string ping()
{
return "director_smartptr_MyBarFoo.ping();";
}
public override string pong()
{
return "director_smartptr_MyBarFoo.pong();" + ping();
}
public override string fooBar(FooBar fooBar)
{
return fooBar.FooBarDo();
}
public override Foo makeFoo()
{
return new Foo();
}
public override FooBar makeFooBar()
{
return new FooBar();
}
}
static void Main()
{
director_smartptr_MyBarFoo myBarFoo =
new director_smartptr_MyBarFoo();
myBarFoo.ping();
}
}

14
Source/Modules/csharp.cxx
View file

@ -3382,6 +3382,7 @@ public:
String *qualified_classname = Copy(sym_name);
String *nspace = getNSpace();
String *dirClassName = directorClassName(n);
String *smartptr_feature = Getattr(n, "feature:smartptr");
if (nspace)
Insert(qualified_classname, 0, NewStringf("%s.", nspace));
@ -3392,8 +3393,17 @@ public:
Wrapper *code_wrap = NewWrapper();
Printf(code_wrap->def, "SWIGEXPORT void SWIGSTDCALL %s(void *objarg", wname);
Printf(code_wrap->code, " %s *obj = (%s *)objarg;\n", norm_name, norm_name);
Printf(code_wrap->code, " %s *director = dynamic_cast<%s *>(obj);\n", dirClassName, dirClassName);
if (Len(smartptr_feature)) {
Printf(code_wrap->code, " %s *obj = (%s *)objarg;\n", smartptr_feature, smartptr_feature);
Printf(code_wrap->code, " // Keep a local instance of the smart pointer around while we are using the raw pointer\n");
Printf(code_wrap->code, " // Avoids using smart pointer specific API.\n");
Printf(code_wrap->code, " %s *director = dynamic_cast<%s *>(obj->operator->());\n", dirClassName, dirClassName);
}
else {
Printf(code_wrap->code, " %s *obj = (%s *)objarg;\n", norm_name, norm_name);
Printf(code_wrap->code, " %s *director = dynamic_cast<%s *>(obj);\n", dirClassName, dirClassName);
}
// TODO: if statement not needed?? - Java too
Printf(code_wrap->code, " if (director) {\n");
Printf(code_wrap->code, " director->swig_connect_director(");