def test_overload_count():
int_value = Literal(value=123, type=NumericType(is_int=True))
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg('x')],
children=[Print(children=[StrLiteral("func1")])]),
FuncDef(name='test_func',
func_args=[FuncDefArg('x'),
FuncDefArg('y')],
children=[Print(children=[StrLiteral("func2")])]),
Invoke(children=[ # test_func(x, y) => "func2"
BareName('test_func'),
InvokeArg(index=0, value=int_value),
InvokeArg(index=1, value=int_value),
]),
Invoke(children=[ # test_func(x) => "func1"
BareName('test_func'),
InvokeArg(index=0, value=int_value),
]),
])
result = get_test_stdout(module)
assert result == "func2\nfunc1"
def test_overload_by_type():
int_value = Literal(value=123, type=NumericType(is_int=True))
float_value = Literal(value=1.23,
type=NumericType(is_int=False, precision=32))
int_type = NumericType(is_int=True, is_fixed=True)
float_type = NumericType(is_int=False, is_fixed=True)
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg('x', dtype=int_type)],
children=[Print(children=[BareName('x')])]),
FuncDef(name='test_func',
func_args=[FuncDefArg('x', dtype=float_type)],
children=[Print(children=[BareName('x')])]),
Invoke(children=[ # test_func(123)
BareName('test_func'),
InvokeArg(index=0, value=int_value),
]),
Invoke(children=[ # test_func(1.23)
BareName('test_func'),
InvokeArg(index=0, value=float_value),
]),
])
result = get_test_stdout(module)
assert re.match("123\n1.230*", result)
def test_empty_func_no_args():
module = Module(is_main=True,
name='_main_',
children=[
FuncDef(name='test_func', func_args=[], children=[]),
Invoke(children=[BareName('test_func')])
])
result = get_test_stdout(module)
assert result == ""
def test_bind_kwargs():
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg("x"),
FuncDefArg("y")],
children=[
Printf(children=[
StrLiteral("%d, %d\n"),
BareName('x'),
BareName('y')
])
]),
# Invoke with index of args only (name=None)
Invoke(children=[
BareName('test_func'),
InvokeArg(name=None,
index=0,
value=Literal(
1, type=NumericType(is_int=True, precision=32))),
InvokeArg(name=None,
index=1,
value=Literal(
2, type=NumericType(is_int=True, precision=32))),
]),
# Invoke with names and indices
Invoke(children=[
BareName('test_func'),
InvokeArg(name='x',
index=0,
value=Literal(
3, type=NumericType(is_int=True, precision=32))),
InvokeArg(name='y',
index=1,
value=Literal(
4, type=NumericType(is_int=True, precision=32))),
]),
# Invoke only with names (indices are null)
Invoke(children=[
BareName('test_func'),
InvokeArg(name='y',
index=None,
value=Literal(
6, type=NumericType(is_int=True, precision=32))),
InvokeArg(name='x',
index=None,
value=Literal(
5, type=NumericType(is_int=True, precision=32))),
]),
])
result = get_test_stdout(module)
assert result == "1, 2\n3, 4\n5, 6"
def test_func_no_args():
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[],
children=[Print(children=[StrLiteral("Hello world")])]),
Invoke(children=[BareName('test_func')])
])
result = get_test_stdout(module)
assert result == "Hello world"
def test_func_missing_arg():
module = Module(is_main=True,
name='_main_',
children=[
FuncDef(name='test_func', func_args=[FuncDefArg('x')]),
Invoke(children=[BareName('test_func')]),
])
try:
get_test_stdout(module)
assert False, "Expected BuildException"
except BuildException:
pass
def test_multiple_overload_cast_fail():
"""Test that a overloading fails when casting to multiple types could work."""
int8, int16, int32 = (NumericType(precision=p) for p in (8, 16, 32))
module = Module(
is_main=True,
name='_main_',
children=[
# def test_func(int32 x)
FuncDef(
name='test_func',
func_args=[FuncDefArg('x', dtype=int32)],
children=[
Print(children=[StrLiteral(value="int32"),
BareName('x')])
]),
# def test_func(int16 x)
FuncDef(
name='test_func',
func_args=[FuncDefArg('x', dtype=int16)],
children=[
Print(children=[StrLiteral(value="int16"),
BareName('x')])
]),
# Call with int8 value, could choose either func impl
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=Literal(value=123, type=int8)),
]),
])
try:
get_test_stdout(module)
assert False, "Expected ambiguous overload to fail."
except:
pass
def test_overload_prefer_non_cast():
"""Test that a function overload will preferentially choose a function that does not require overload."""
int8, int16, int32 = (NumericType(precision=p) for p in (8, 16, 32))
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(
name='test_func',
func_args=[FuncDefArg('x', dtype=int32)],
children=[
Print(children=[StrLiteral(value="int32"),
BareName('x')])
]),
FuncDef(
name='test_func',
func_args=[FuncDefArg('x', dtype=int16)],
children=[
Print(children=[StrLiteral(value="int16"),
BareName('x')])
]),
# Call with int32 value, should choose first overload
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=Literal(value=123, type=int32)),
]),
# Call with int16 value, should choose second overload
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=Literal(value=456, type=int16)),
]),
])
result = get_test_stdout(module)
assert result == "int32 123\nint16 456"
def test_call_func_ptr():
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(
name='test_func',
func_args=[FuncDefArg('x')],
children=[
Print(children=[StrLiteral(value="int32"),
BareName('x')])
]),
Invoke(children=[BareName('test_func2')])
])
assert get_test_stdout(module) == 'int32 123'
def test_implicit_cast_float_arg():
float_type = NumericType(is_int=False, is_fixed=True, precision=32)
double_type = NumericType(is_int=False, precision=64)
double_value = Literal(value=1.23, type=double_type)
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg('x', dtype=float_type)],
children=[Print(children=[BareName('x')])]),
Invoke(children=[ # test_func(1.23)
BareName('test_func'),
InvokeArg(index=0, value=double_value),
]),
])
result = get_test_stdout(module)
assert result[0:4] == "1.23"
def test_func_extra_arg():
module = Module(is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg('x'),
FuncDefArg('y')],
children=[]),
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=None),
InvokeArg(index=1, value=None),
InvokeArg(index=2, value=None)
]),
])
try:
get_test_stdout(module)
assert False, "Expected BuildException"
except BuildException:
pass
def test_call_func():
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg('x')],
children=[
Printf(children=[StrLiteral("%d\n"),
BareName('x')])
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(name=None,
index=0,
value=Literal(
32, type=NumericType(is_int=True, precision=32)))
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(name=None,
index=0,
value=Literal(
16, type=NumericType(is_int=True, precision=16)))
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(name=None,
index=0,
value=Literal(1,
type=NumericType(is_int=True,
is_bool=True,
precision=8)))
]),
])
result = get_test_stdout(module)
assert result == "32\n16\n1"
def test_call_default_value():
int32 = NumericType()
module = Module(
is_main=True,
name='_main_',
children=[
# def test_func(int32 x = 123)
FuncDef(
name='test_func',
func_args=[
FuncDefArg('x',
dtype=int32,
default_val=Literal(value=123, type=int32))
],
children=[
Print(children=[StrLiteral(value="int32"),
BareName('x')])
]),
Invoke(children=[BareName('test_func')])
])
assert get_test_stdout(module) == 'int32 123'
def test_empty_func_with_args():
module = Module(
is_main=True,
name='_main_',
children=[
FuncDef(name='test_func',
func_args=[FuncDefArg("x"),
FuncDefArg("y")]),
Invoke(children=[
BareName('test_func'),
InvokeArg(name=None,
index=0,
value=Literal(32,
type=NumericType(is_int=True,
precision=32))),
InvokeArg(name=None,
index=0,
value=Literal(32,
type=NumericType(is_int=True,
precision=32))),
])
])
result = get_test_stdout(module)
assert result == ""
def test_call_multi_default_values():
int32 = NumericType()
module = Module(
is_main=True,
name='_main_',
children=[
# def test_func(int32 x = 123)
FuncDef(name='test_func',
func_args=[
FuncDefArg('x',
dtype=int32,
default_val=Literal(value=123, type=int32)),
FuncDefArg('y',
dtype=int32,
default_val=Literal(value=456, type=int32)),
FuncDefArg('z',
dtype=int32,
default_val=Literal(value=789, type=int32)),
],
children=[
Print(children=[
BareName('x'),
BareName('y'),
BareName('z'),
])
]),
Invoke(children=[BareName('test_func')]),
# Zero out one arg at a time by name
Invoke(children=[
BareName('test_func'),
InvokeArg(name='x', value=Literal(value=0, type=int32))
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(name='y', value=Literal(value=0, type=int32))
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(name='z', value=Literal(value=0, type=int32))
]),
# Zero out args by position
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=Literal(value=0, type=int32))
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=Literal(value=0, type=int32)),
InvokeArg(index=1, value=Literal(value=0, type=int32))
]),
Invoke(children=[
BareName('test_func'),
InvokeArg(index=0, value=Literal(value=0, type=int32)),
InvokeArg(index=1, value=Literal(value=0, type=int32)),
InvokeArg(index=2, value=Literal(value=0, type=int32))
]),
])
results = get_test_stdout(module).split('\n')
# Pass no args, all use default values
assert results[0] == '123 456 789'
# Zero args by name
assert results[1] == '0 456 789'
assert results[2] == '123 0 789'
assert results[3] == '123 456 0'
# Zero args by position
assert results[4] == '0 456 789'
assert results[5] == '0 0 789'
assert results[6] == '0 0 0'