def test_type_casting_rules(self):
tm = TypeManager()
tcr = TypeCastingRules(tm)
i32 = types.int32
i64 = types.int64
f64 = types.float64
f32 = types.float32
made_up = types.Dummy("made_up")
tcr.promote_unsafe(i32, i64)
tcr.safe_unsafe(i32, f64)
tcr.promote_unsafe(f32, f64)
def base_test():
# As declared
self.assertEqual(tm.check_compatible(i32, i64), Conversion.promote)
self.assertEqual(tm.check_compatible(i32, f64), Conversion.safe)
self.assertEqual(tm.check_compatible(f32, f64), Conversion.promote)
self.assertEqual(tm.check_compatible(i64, i32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f64, i32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f64, f32), Conversion.unsafe)
# Propagated
self.assertEqual(tm.check_compatible(i64, f64), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f64, i64), Conversion.unsafe)
self.assertEqual(tm.check_compatible(i64, f32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(i32, f32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f32, i32), Conversion.unsafe)
# Test base graph
base_test()
self.assertIsNone(tm.check_compatible(i64, made_up))
self.assertIsNone(tm.check_compatible(i32, made_up))
self.assertIsNone(tm.check_compatible(f32, made_up))
self.assertIsNone(tm.check_compatible(made_up, f64))
self.assertIsNone(tm.check_compatible(made_up, i64))
# Add new test
tcr.promote(f64, made_up)
tcr.unsafe(made_up, i32)
# Ensure the graph did not change by adding the new type
base_test()
# To "made up" type
self.assertEqual(tm.check_compatible(i64, made_up), Conversion.unsafe)
self.assertEqual(tm.check_compatible(i32, made_up), Conversion.safe)
self.assertEqual(tm.check_compatible(f32, made_up), Conversion.promote)
self.assertEqual(tm.check_compatible(made_up, f64), Conversion.unsafe)
self.assertEqual(tm.check_compatible(made_up, i64), Conversion.unsafe)
def test_type_casting_rules(self):
tm = TypeManager()
tcr = TypeCastingRules(tm)
i32 = types.int32
i64 = types.int64
f64 = types.float64
f32 = types.float32
made_up = types.Dummy("made_up")
tcr.promote_unsafe(i32, i64)
tcr.safe_unsafe(i32, f64)
tcr.promote_unsafe(f32, f64)
def base_test():
# As declared
self.assertEqual(tm.check_compatible(i32, i64), Conversion.promote)
self.assertEqual(tm.check_compatible(i32, f64), Conversion.safe)
self.assertEqual(tm.check_compatible(f32, f64), Conversion.promote)
self.assertEqual(tm.check_compatible(i64, i32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f64, i32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f64, f32), Conversion.unsafe)
# Propagated
self.assertEqual(tm.check_compatible(i64, f64), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f64, i64), Conversion.unsafe)
self.assertEqual(tm.check_compatible(i64, f32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(i32, f32), Conversion.unsafe)
self.assertEqual(tm.check_compatible(f32, i32), Conversion.unsafe)
# Test base graph
base_test()
self.assertIsNone(tm.check_compatible(i64, made_up))
self.assertIsNone(tm.check_compatible(i32, made_up))
self.assertIsNone(tm.check_compatible(f32, made_up))
self.assertIsNone(tm.check_compatible(made_up, f64))
self.assertIsNone(tm.check_compatible(made_up, i64))
# Add new test
tcr.promote(f64, made_up)
tcr.unsafe(made_up, i32)
# Ensure the graph did not change by adding the new type
base_test()
# To "made up" type
self.assertEqual(tm.check_compatible(i64, made_up), Conversion.unsafe)
self.assertEqual(tm.check_compatible(i32, made_up), Conversion.safe)
self.assertEqual(tm.check_compatible(f32, made_up), Conversion.promote)
self.assertEqual(tm.check_compatible(made_up, f64), Conversion.unsafe)
self.assertEqual(tm.check_compatible(made_up, i64), Conversion.unsafe)
def test_typeconv(self):
tm = TypeManager()
i32 = types.int32
i64 = types.int64
f32 = types.float32
tm.set_promote(i32, i64)
tm.set_unsafe_convert(i32, f32)
sig = (i32, f32)
ovs = [
(i32, i32),
(f32, f32),
]
sel = tm.select_overload(sig, ovs)
self.assertEqual(sel, 1)
def test_typeconv(self):
tm = TypeManager()
i32 = types.int32
i64 = types.int64
f32 = types.float32
tm.set_promote(i32, i64)
tm.set_unsafe_convert(i32, f32)
sig = (i32, f32)
ovs = [
(i32, i32),
(f32, f32),
(i64, i64),
]
# allow_unsafe = True => a conversion from i32 to f32 is chosen
sel = tm.select_overload(sig, ovs, True)
self.assertEqual(sel, 1)
# allow_unsafe = False => no overload available
with self.assertRaises(TypeError):
sel = tm.select_overload(sig, ovs, False)
def test_typeconv(self):
tm = TypeManager()
i32 = types.int32
i64 = types.int64
f32 = types.float32
tm.set_promote(i32, i64)
tm.set_unsafe_convert(i32, f32)
sig = (i32, f32)
ovs = [
(i32, i32),
(f32, f32),
]
sel = tm.select_overload(sig, ovs)
self.assertEqual(sel, 1)
def test_typeconv(self):
tm = TypeManager()
i32 = types.int32
i64 = types.int64
f32 = types.float32
tm.set_promote(i32, i64)
tm.set_unsafe_convert(i32, f32)
sig = (i32, f32)
ovs = [
(i32, i32),
(f32, f32),
(i64, i64),
]
# allow_unsafe = True => a conversion from i32 to f32 is chosen
sel = tm.select_overload(sig, ovs, True)
self.assertEqual(sel, 1)
# allow_unsafe = False => no overload available
with self.assertRaises(TypeError):
sel = tm.select_overload(sig, ovs, False)