def test_atomic_decrement(self):
self.assert_generates_ast('''
k--
--l
''',
[
AtomicDecrement(_('k'), True),
AtomicDecrement(_('l'), False)
])
def test_read_member(self):
self.assert_generates_ast('''
foo->attr
blah.attr2
''',
[
ObjectMember(_('foo'), _('attr'), do_unary=True),
ObjectMember(_('blah'), _('attr2'), do_unary=False)
])
def test_atomic_increment(self):
self.assert_generates_ast('''
i++
++j
''',
[
AtomicIncrement(_('i'), True),
AtomicIncrement(_('j'), False)
])
def test_basic(self):
self.assert_generates_ast('''
while a < b:
do_something()
''',
[
WhileLoop(
Condition([_('a'), _op('<'), _('b')]),
Block([
Call(_('do_something'), [])
])
)
])
def test_simple(self):
self.assert_generates_ast('''
for i as Int from 0 to 10:
printf("Hi! %d\\n", i)
''',
[
ForLoop(
Declaration(_('i'), _t('Int')),
Integer(0),
Integer(10),
AtomicIncrement(
Declaration(_('i'), _t('Int')),
return_new_value=False
)
)
])
def test_with_vars_and_calls(self):
self.assert_generates_ast('''
a as Int = 5 ** 0.7
b as Float = 0.2 * sqrt(2) * a / blah(a*sqrt(2))
''',
[
Definition(
Declaration(_('a'), _t('Int')),
MathExpression([Integer(5), _op('**'), Float(0.7)])
),
Definition(
Declaration(_('b'), _t('Float')),
MathExpression([
Float(0.2),
_op('*'),
Call(_('sqrt'), [Integer(2)]),
_op('*'),
_('a'),
_op('/'),
Call(_('blah'),
[MathExpression([
_('a'),
_op('*'),
Call(_('sqrt'), [Integer(2)])
])]
)
])
)
])
def test_declaration(self):
self.assert_generates_ast('''
Foo <- Object:
a as Int
b as Float
foo as Foo
''',
[
ObjectTypeDeclaration(
_t('Foo'),
_t('Object'),
DeclarationBlock([
Declaration(_('a'), _t('Int')),
Declaration(_('b'), _t('Float')),
Declaration(_('foo'), _t('Foo'))
])
)
])
def test_malloc(self):
self.assert_generates_ast('''
Blah <- Object:
a as Int
fizz as Blah* = malloc(sizeof(Blah))
''',
[
ObjectTypeDeclaration(
_t('Blah'),
_t('Object'),
DeclarationBlock([
Declaration(_('a'), _t('Int'))
])
),
Definition(
Declaration(_('fizz'), _t('Blah', True)),
Call(_('malloc'), [Call(_('sizeof'), [_('Blah')])])
)
])
def test_inheritance(self):
ast = self.assert_generates_ast('''
Parent <- Object:
a as Int
b as Parent*
Child1 <- Parent:
c as Parent*
d as Float
Child2 <- Parent:
e as Int
Child1_1 <- Child1:
f as Child2
''',
[
ObjectTypeDeclaration(
_t('Parent'),
_t('Object'),
DeclarationBlock([
Declaration(_('a'), _t('Int')),
Declaration(_('b'), _t('Parent', True))
])
),
ObjectTypeDeclaration(
_t('Child1'),
_t('Parent'),
DeclarationBlock([
Declaration(_('c'), _t('Parent', True)),
Declaration(_('d'), _t('Float'))
])
),
ObjectTypeDeclaration(
_t('Child2'),
_t('Parent'),
DeclarationBlock([
Declaration(_('e'), _t('Int'))
])
),
ObjectTypeDeclaration(
_t('Child1_1'),
_t('Child1'),
DeclarationBlock([
Declaration(_('f'), _t('Child2'))
])
)
])
Parent, Child1, Child2, Child1_1 = ast
self.assert_equal(Parent.children['parent_type'], None)
self.assert_equal(Child1.children['parent_type'], _t('Parent'))
self.assert_equal(Child2.children['parent_type'], _t('Parent'))
self.assert_equal(Child1_1.children['parent_type'], _t('Child1'))
def test_set_member(self):
self.assert_generates_ast('''
foo->attr = 42
blah.attr = foo->attr
''',
[
Assignment(
ObjectMember(_('foo'), _('attr'), do_unary=True),
Integer(42)
),
Assignment(
ObjectMember(_('blah'), _('attr'), do_unary=False),
ObjectMember(_('foo'), _('attr'), do_unary=True)
)
])
def test_recursion(self):
self.assert_generates_ast('''
bear as Function(emma as Heifer*, bertram as Bull*) -> Calf*:
return malloc(sizeof(Calf))
bear_n as Function(n as Int, emma as Heifer*, bertram as Bull*):
if not n:
return
else:
bear(eve, adam)
return bear_n(n-1)
''',
[
Function(
_('bear'),
FunctionHeader(
_t('Calf', True),
[
Declaration(_('emma'), _t('Heifer', True)),
Declaration(_('bertram'), _t('Bull', True))
],
),
Block([Return(Call(_('malloc'), [Call(_('sizeof'), [_('Calf')])]))])
),
Function(
_('bear_n'),
FunctionHeader(
None,
[
Declaration(_('n'), _t('Int')),
Declaration(_('emma'), _t('Heifer', True)),
Declaration(_('bertram'), _t('Bull', True))
],
),
Block([
If(
Condition([_op('not'), _('n')]),
Block([Return(None)]),
Block([
Call(_('bear'), [_('eve'), _('adam')]),
Return(
Call(
_('bear_n'),
[MathExpression([_('n'), _op('-'), Integer(1)])]
)
)
])
)
])
)
])
def test_definition(self):
self.assert_generates_ast('''
foo as Function(a as Int, b as Float, c as Bool, d as Bool, e as Bool, f as Bool) -> String:
if a:
return a
if c and e and (d or e) or (f):
return a
else:
return b
foo2 as Function():
return 0
''',
[
Function(
_('foo'),
FunctionHeader(
_t('String'),
[
Declaration(_('a'), _t('Int')),
Declaration(_('b'), _t('Float')),
Declaration(_('c'), _t('Bool')),
Declaration(_('d'), _t('Bool')),
Declaration(_('e'), _t('Bool')),
Declaration(_('f'), _t('Bool'))
]
),
Block([
If(
Condition([_('a')]),
Block([Return(_('a'))])
),
If(
Condition([
_('c'), _op('and'),
_('e'), _op('and'),
ExpressionContainer([Condition([_('d'), _op('or'), _('e')])]),
_op('or'),
ExpressionContainer([_('f')])
]),
Block([Return(_('a'))]),
Block([Return(_('b'))])
)
])
),
Function(
_('foo2'),
FunctionHeader(None, []),
Block([Return(Integer(0))])
)
])
def test_multiple(self):
self.assert_generates_ast('''
a as Int = 5 * 8
b as Float = 10 * 3.14
b = 10 / 5.678
b = 5 * 5 + 1
b = 5 * 3 + (2 * 7)
7 + (3 ^ (2 + 1) / 5 ** 7 * (8/9)) - 9 * (5 - 3)
''',
[
Definition(
Declaration(_('a'), _t('Int')),
MathExpression([Integer(5), _op('*'), Integer(8)]),
),
Definition(
Declaration(_('b'), _t('Float')),
MathExpression([Integer(10), _op('*'), Float(3.14)])
),
Assignment(_('b'),
MathExpression([Integer(10), _op('/'), Float(5.678)])
),
Assignment(_('b'),
MathExpression([Integer(5), _op('*'), Integer(5), _op('+'), Integer(1)])
),
Assignment(_('b'),
MathExpression([
Integer(5),
_op('*'),
Integer(3),
_op('+'),
ExpressionContainer([
MathExpression([
Integer(2), _op('*'), Integer(7)
])
])
])
),
MathExpression([
Integer(7),
_op('+'),
ExpressionContainer([
MathExpression([
Integer(3),
_op('**'),
ExpressionContainer([
MathExpression([Integer(2), _op('+'), Integer(1)])
]),
_op('/'),
Integer(5),
_op('^'),
Integer(7),
_op('*'),
ExpressionContainer([
MathExpression([Integer(8), _op('/'), Integer(9)])
]),
]),
]),
_op('-'),
Integer(9),
_op('*'),
ExpressionContainer([
MathExpression([Integer(5), _op('-'), Integer(3)])
])
])
])