Add genpybind example

playground/genpybind/example.cpp

@@ -0,0 +1,9 @@
+#include "example.h"
+
+constexpr int Example::not_exposed;
+
+int Example::calculate(int some_argument) const { return _value + some_argument; }
+
+int Example::getSomething() const { return _value; }
+
+void Example::setSomething(int value) { _value = value; }

playground/genpybind/example.h

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+#pragma once
+
+#include "genpybind.h"
+
+class GENPYBIND(visible) Example {
+public:
+  static constexpr int GENPYBIND(hidden) not_exposed = 10;
+
+  /// \brief Do a complicated calculation.
+  int calculate(int some_argument = 5) const;
+
+  GENPYBIND(getter_for(something))
+  int getSomething() const;
+
+  GENPYBIND(setter_for(something))
+  void setSomething(int value);
+
+private:
+  int _value = 0;
+};

playground/genpybind/example_test.py

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+import pyexample as m
+
+
+def test_example():
+    obj = m.Example()
+    obj.something = 42
+    assert obj.something == 42
+    assert obj.calculate() == 47  # with default argument
+    assert obj.calculate(2) == 44

playground/genpybind/wscript

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+#!/usr/bin/env python
+
+
+def options(opt):
+    opt.load('python')
+    opt.load('compiler_cxx')
+    opt.load('genpybind')
+
+
+def configure(cfg):
+    cfg.load('python')
+    cfg.load('compiler_cxx')
+    cfg.check_python_version((2, 7))
+    cfg.check_python_headers()
+    cfg.load('genpybind')
+
+    cfg.check(compiler='cxx',
+              features='cxx pyext',
+              uselib_store='PYBIND11GENPYBIND_EXAMPLE',
+              mandatory=True,
+              header_name='pybind11/pybind11.h')
+
+
+def build(bld):
+    bld(target='example_inc',
+        export_includes='.')
+
+    bld.shlib(target='example',
+              source='example.cpp',
+              features='use',
+              use='example_inc')
+
+    bld(target='pyexample',
+        source='example.h',
+        genpybind_tags='genpybind_example',
+        features='use genpybind cxx cxxshlib pyext',
+        use=['PYBIND11GENPYBIND_EXAMPLE', 'example'])