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Extend C# complex support to member variables of this type

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Define csvar{in,out} typemaps needed to support properties of complex type and
apply the existing cstype and csin ones to them as well.

Add unit test verifying that this works as expected in C# and, also, in
Python, even though no changes were needed there.
This commit is contained in:
Vadim Zeitlin 2017-04-01 23:48:33 +02:00
commit ec565f74cf
4 changed files with 33 additions and 2 deletions
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18
Lib/csharp/complex.i
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@ -23,20 +23,34 @@ public:
} // namespace std
%define swig_complex_typemaps(T)
%typemap(cstype) std::complex<T>, const std::complex<T>& "System.Numerics.Complex"
%typemap(cstype) std::complex<T>, std::complex<T>*, const std::complex<T>& "System.Numerics.Complex"
// The casts in "pre" are needed in order to allow creating std::complex<float>
// from System.Numerics.Complex, which always uses doubles. It relies on the
// fact that the name of the C++ and C# float/double types are the same.
%typemap(csin,
pre=" var cpp$csinput = new Complex_" #T "((" #T ")$csinput.Real, (" #T ")$csinput.Imaginary);"
) std::complex<T>, const std::complex<T>& "Complex_" #T ".getCPtr(cpp$csinput)"
) std::complex<T>, std::complex<T>*, const std::complex<T>& "Complex_" #T ".getCPtr(cpp$csinput)"
%typemap(csout, excode=SWIGEXCODE) std::complex<T>, const std::complex<T>& {
Complex_##T cppret = new Complex_##T($imcall, $owner);$excode
return new System.Numerics.Complex(cppret.real(), cppret.imag());
}
%typemap(csvarin, excode=SWIGEXCODE2) std::complex<T>* %{
set {
var cppvalue = new Complex_##T((T)value.Real, (T)value.Imaginary);
$imcall;$excode
}
%}
%typemap(csvarout, excode=SWIGEXCODE2) std::complex<T>* %{
get {
var cppret = new Complex_##T($imcall, $owner);$excode
return new System.Numerics.Complex(cppret.real(), cppret.imag());
}
%}
%template(Complex_##T) std::complex<T>;
%enddef