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added a reference polymorphic return type case, and 

some extra test for the Java side.


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@5596 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
Marcelo Matus 2003-12-24 06:53:47 +00:00
parent a7844fd600
commit ac011192ae
3 changed files with 41 additions and 0 deletions
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20
Examples/test-suite/java/virtual_poly_runme.java
View File

@ -37,5 +37,25 @@ public class virtual_poly_runme {
virtual_poly.incr(ic);
if ( (i.get() + 1) != ic.get() )
throw new RuntimeException("incr test failed");
//
// Checking a pure user downcast
//
NNumber n1 = d.copy();
NNumber n2 = d.nnumber();
NDouble dn1 = NDouble.narrow(n1);
NDouble dn2 = NDouble.narrow(n2);
if ( (dn1.get()) != dn2.get() )
throw new RuntimeException("copy/narrow test failed");
//
// Checking the ref polymorphic case
//
NNumber nr = d.ref_this();
NDouble dr1 = NDouble.narrow(nr);
NDouble dr2 = (NDouble)d.ref_this();
if ( dr1.get() != dr2.get() )
throw new RuntimeException("copy/narrow test failed");
}
}

4
Examples/test-suite/python/virtual_poly_runme.py
View File

@ -21,6 +21,10 @@ if (i.get() + 1) != ic.get():
raise RuntimeError
dr = d.ref_this()
if d.get() != dr.get():
raise RuntimeError
#
# 'narrowing' also works

17
Examples/test-suite/virtual_poly.i
View File

@ -16,12 +16,18 @@
{
virtual ~NNumber() {};
virtual NNumber* copy() const = 0;
virtual NNumber& ref_this()
{
return *this;
}
NNumber* nnumber()
{
return this;
}
};
/*
@ -57,8 +63,14 @@
return new NInt(val);
}
virtual NInt& ref_this()
{
return *this;
}
/* See below */
static NInt* narrow(NNumber* nn);
private:
int val;
@ -85,6 +97,11 @@
return new NDouble(val);
}
virtual NDouble& ref_this()
{
return *this;
}
/* See below */
static NDouble* narrow(NNumber* nn);