def get_header(self):
object = self.object
transpiler = OpenCLConverter(known_types=self.known_types)
headers = []
headers.extend(get_code(object.kernel, transpiler))
for equation in object.all_group.equations:
headers.extend(get_code(equation, transpiler))
headers.append(transpiler.parse_instance(object.kernel))
cls_name = object.kernel.__class__.__name__
self.known_types['KERNEL'] = KnownType('__global %s*' % cls_name,
base_type=cls_name)
headers.append(object.all_group.get_equation_wrappers(
self.known_types))
# This is to be done after the above as the equation names are assigned
# only at this point.
cpu_structs = self._cpu_structs
h = CStructHelper(object.kernel)
cpu_structs['kern'] = h.get_array()
for eq in object.all_group.equations:
self._equations[eq.var_name] = eq
h.parse(eq)
cpu_structs[eq.var_name] = h.get_array()
return '\n'.join(headers)
def test_c_struct_helper():
# Given
class Fruit(object):
pass
f = Fruit()
f.apple = 1
f.banana = 2.0
f.pear = 1.5
h = CStructHelper(f)
# When
result = h.get_code()
# Then
expect = dedent('''
typedef struct Fruit {
int apple;
double banana;
double pear;
} Fruit;
''')
assert result.strip() == expect.strip()
# When/Then
array = h.get_array()
use_double = get_config().use_double
fdtype = np.float64 if use_double else np.float32
expect = np.dtype([('apple', np.int32), ('banana', fdtype),
('pear', fdtype)])
assert array.dtype == expect
assert array['apple'] == 1
assert array['banana'] == 2.0
assert array['pear'] == 1.5
def test_wrapping_class():
# Given
class Dummy(object):
'''Class Docstring'''
def __init__(self, x=0, f=0.0, s=''):
"Constructor docstring"
self.x = x
self.f = f
self.s = s
self._private = 1
def method(self):
'''Method docstring.
'''
pass
obj = Dummy()
# When
c = CConverter()
result = c.parse_instance(obj)
# Then
expect = dedent('''
typedef struct Dummy {
double f;
int x;
} Dummy;
void Dummy_method(Dummy* self)
{
;
}
''')
assert result.strip() == expect.strip()
# When
h = CStructHelper(obj)
use_double = get_config().use_double
fdtype = np.float64 if use_double else np.float32
dtype = np.dtype([('f', fdtype), ('x', np.int32)])
expect = np.zeros(1, dtype)
assert h.get_array() == expect
def test_c_struct_helper_empty_object():
# Given
class Fruit(object):
pass
f = Fruit()
h = CStructHelper(f)
# When
result = h.get_code()
# Then
expect = dedent('''
typedef struct Fruit {
} Fruit;
''')
assert result.strip() == expect.strip()
# When/Then
assert h.get_array() is None