Added Cython sample project.

test cases/python3/3 cython/cytest.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+from storer import Storer
+import sys
+
+s = Storer()
+
+if s.get_value() != 0:
+    print('Initial value incorrect.')
+    sys.exit(1)
+
+s.set_value(42)
+
+if s.get_value() != 42:
+    print('Setting value failed.')
+    sys.exit(1)
+
+try:
+    s.set_value('not a number')
+    print('Using wrong argument type did not fail.')
+    sys.exit(1)
+except TypeError:
+    pass

test cases/python3/3 cython/libdir/cstorer.pxd

@@ -0,0 +1,9 @@
+
+cdef extern from "storer.h":
+    ctypedef struct Storer:
+        pass
+
+    Storer* storer_new();
+    void storer_destroy(Storer *s);
+    int storer_get_value(Storer *s);
+    void storer_set_value(Storer *s, int v);

test cases/python3/3 cython/libdir/meson.build

@@ -0,0 +1,18 @@
+pxd_c = custom_target('cstorer_pxd',
+  output : 'cstorer_pxd.c',
+  input : 'cstorer.pxd',
+  command : [cython, '@INPUT@', '-o', '@OUTPUT@'],
+)
+
+pyx_c = custom_target('storer_pyx',
+  output : 'storer_pyx.c',
+  input : 'storer.pyx',
+  command : [cython, '@INPUT@', '-o', '@OUTPUT@'],
+)
+
+slib = shared_library('storer',
+  'storer.c', pxd_c, pyx_c,
+  name_prefix : '',
+  dependencies : py3_dep)
+
+pydir = meson.current_build_dir()

test cases/python3/3 cython/libdir/storer.c

@@ -0,0 +1,24 @@
+#include"storer.h"
+#include<stdlib.h>
+
+struct _Storer {
+    int value;
+};
+
+Storer* storer_new() {
+    Storer *s = malloc(sizeof(struct _Storer));
+    s->value = 0;
+    return s;
+}
+
+void storer_destroy(Storer *s) {
+    free(s);
+}
+
+int storer_get_value(Storer *s) {
+    return s->value;
+}
+
+void storer_set_value(Storer *s, int v) {
+    s->value = v;
+}

test cases/python3/3 cython/libdir/storer.h

@@ -0,0 +1,8 @@
+#pragma once
+
+typedef struct _Storer Storer;
+
+Storer* storer_new();
+void storer_destroy(Storer *s);
+int storer_get_value(Storer *s);
+void storer_set_value(Storer *s, int v);

test cases/python3/3 cython/libdir/storer.pyx

@@ -0,0 +1,16 @@
+cimport cstorer
+
+cdef class Storer:
+    cdef cstorer.Storer* _c_storer
+
+    def __cinit__(self):
+        self._c_storer = cstorer.storer_new()
+
+    def __dealloc__(self):
+        cstorer.storer_destroy(self._c_storer)
+
+    cpdef int get_value(self):
+        return cstorer.storer_get_value(self._c_storer)
+
+    cpdef void set_value(self, int value):
+        cstorer.storer_set_value(self._c_storer, value)

test cases/python3/3 cython/meson.build

@@ -0,0 +1,12 @@
+project('cython', 'c',
+  default_options : ['warning_level=3'])
+
+cython = find_program('cython3')
+py3_dep = dependency('python3')
+
+subdir('libdir')
+
+test('cython tester',
+  find_program('cytest.py'),
+  env : ['PYTHONPATH=' + pydir]
+)