def test_eq(self):
expressions1 = [None,
Expression(Type.int(), 1), Expression(Type.decimal(), 1.1), Expression(Type.boolean(), False),
Expression(Type.vector(), [1.1, 2.2, -1.1]), Expression(Type.list_of(Type.int()), [1, 2, 3, 4]),
Expression(Type.list_of(Type.int()), []),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0]),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]]),
Expression(Type.int(), 1, "a"), Expression(Type.decimal(), 1.1, "a"),
Expression(Type.boolean(), False, "a"),
Expression(Type.vector(), [1.1, 2.2, -1.1], "a"),
Expression(Type.list_of(Type.int()), [1, 2, 3, 4], "a"),
Expression(Type.list_of(Type.int()), [], "a"),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]], "a")]
expressions2 = [None,
Expression(Type.int(), 1), Expression(Type.decimal(), 1.1), Expression(Type.boolean(), False),
Expression(Type.vector(), [1.1, 2.2, -1.1]), Expression(Type.list_of(Type.int()), [1, 2, 3, 4]),
Expression(Type.list_of(Type.int()), []),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0]),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]]),
Expression(Type.int(), 1, "a"), Expression(Type.decimal(), 1.1, "a"),
Expression(Type.boolean(), False, "a"),
Expression(Type.vector(), [1.1, 2.2, -1.1], "a"),
Expression(Type.list_of(Type.int()), [1, 2, 3, 4], "a"),
Expression(Type.list_of(Type.int()), [], "a"),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]], "a")]
for i in range(len(expressions1)):
for j in range(len(expressions2)):
if i == j:
self.assertEqual(expressions1[i], expressions2[j])
else:
self.assertNotEqual(expressions1[i], expressions2[j])
def test_declare_and_assign_with_different_type_should_give_error(self):
types = [
Type.int(),
Type.decimal(),
Type.string(),
Type.boolean(),
Type.vector(),
Type.list_of(Type.int()),
Type.list_of(Type.list_of(Type.int()))
]
for t1 in types:
for t2 in types:
if t1 == t2:
continue
with self.assertRaises(CompileError) as context:
generate_commands("""
main () {{
{} a;
{} b <- a;
}}
""".format(t1, t2))
self.assertTrue(
"Identifier b has been declared as {}, but assigned as {}".
format(t2.type_name, t1.type_name) in str(
context.exception))
def test_str(self):
self.assertEqual("Expression: { type: int, value: 1, ident: None }", str(Expression(Type.int(), 1)))
self.assertEqual("Expression: { type: decimal, value: 1.1, ident: None }", str(Expression(Type.decimal(), 1.1)))
self.assertEqual("Expression: { type: boolean, value: False, ident: None }",
str(Expression(Type.boolean(), False)))
self.assertEqual("Expression: { type: vector, value: [1.1, 2.2, -1.1], ident: None }",
str(Expression(Type.vector(), [1.1, 2.2, -1.1])))
self.assertEqual("Expression: { type: list[int], value: [1, 2, 3, 4], ident: None }",
str(Expression(Type.list_of(Type.int()), [1, 2, 3, 4])))
self.assertEqual("Expression: { type: list[int], value: [], ident: None }",
str(Expression(Type.list_of(Type.int()), [])))
self.assertEqual(
"Expression: { type: list[list[vector]], value: [[[1.1, 2.2, -1.1], [1, 2, -1]]], ident: None }",
str(Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]])))
self.assertEqual("Expression: { type: int, value: 1, ident: a }", str(Expression(Type.int(), 1, "a")))
self.assertEqual("Expression: { type: decimal, value: 1.1, ident: a }",
str(Expression(Type.decimal(), 1.1, "a")))
self.assertEqual("Expression: { type: boolean, value: False, ident: a }",
str(Expression(Type.boolean(), False, "a")))
self.assertEqual("Expression: { type: vector, value: [1.1, 2.2, -1.1], ident: a }",
str(Expression(Type.vector(), [1.1, 2.2, -1.1], "a")))
self.assertEqual("Expression: { type: list[int], value: [1, 2, 3, 4], ident: a }",
str(Expression(Type.list_of(Type.int()), [1, 2, 3, 4], "a")))
self.assertEqual("Expression: { type: list[int], value: [], ident: a }",
str(Expression(Type.list_of(Type.int()), [], "a")))
self.assertEqual("Expression: { type: list[list[vector]], value: [[[1.1, 2.2, -1.1], [1, 2, -1]]], ident: a }",
str(Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]],
"a")))
def test_update(self):
st = SymbolTable()
self.assertRaises(AssertionError, st.update, "a", 1)
st.store("a", Expression(Type.int(), 1))
st.update("a", 2)
self.assertEqual(Type.int(), st.get_expression("a").type)
self.assertEqual(2, st.get_expression("a").value)
def test_assign_list_elem_with_different_type_should_give_error(self):
types = [
Type.int(),
Type.decimal(),
Type.string(),
Type.boolean(),
Type.vector(),
Type.list_of(Type.int()),
Type.list_of(Type.list_of(Type.int()))
]
for t1 in types:
for t2 in types:
if t1 == t2:
continue
with self.assertRaises(CompileError) as context:
generate_commands("""
main () {{
{} a;
{} b;
list[{}] c <- [a];
c[0] <- b;
}}
""".format(t1, t2, t1))
self.assertTrue(
"Assigned value {} should have type {}, but is {}".format(
t2.default_value, t1.type_name, t2.type_name) in str(
context.exception))
def test_list(self):
list_type = Type.list_of(Type.int())
self.assertEqual(Type.list_of(Type.int()), list_type)
self.assertEqual(ListType(Type.int()), list_type)
self.assertEqual("list[int]", list_type.type_name)
self.assertEqual([], list_type.default_value)
self.assertEqual(Type.int(), list_type.elem_type)
self.assertEqual("list[int]", str(list_type))
def test_nested_list(self):
inner = Type.list_of(Type.int())
outer = Type.list_of(inner)
self.assertEqual(ListType(Type.list_of(Type.int())), outer)
self.assertEqual("list[list[int]]", outer.type_name)
self.assertEqual([], outer.default_value)
self.assertEqual(Type.list_of(Type.int()), outer.elem_type)
self.assertEqual("list[list[int]]", str(outer))
def test_store(self):
st = SymbolTable()
st.store("a", Expression(Type.int(), 1))
self.assertTrue("a" in st)
self.assertEqual(Type.int(), st.get_expression("a").type)
self.assertEqual(1, st.get_expression("a").value)
self.assertRaises(AssertionError, st.store, "a",
Expression(Type.int(), 1))
def test_corrupted_type_should_not_affect_correct_type(self):
int_type = Type.int()
corrupted_type = Type.int()
corrupted_type._type_name = "corrupted"
self.assertNotEqual(int_type, corrupted_type)
self.assertEqual("int", str(Type.int()))
self.assertEqual(0, Type.int().default_value)
self.assertEqual("corrupted", str(corrupted_type))
self.assertEqual(0, corrupted_type.default_value)
def test_to_expression_should_return_correct_value(self):
expressions = [None, Expression(Type.int(), 1, "a"), Expression(Type.decimal(), 1.1, "a"),
Expression(Type.boolean(), False, "a"),
Expression(Type.vector(), [1.1, 2.2, -1.1], "a"),
Expression(Type.list_of(Type.int()), [1, 2, 3, 4], "a"),
Expression(Type.list_of(Type.int()), [], "a"),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]], "a")]
for expression in expressions:
self.assertEqual(expression, Identifier("a", expression).to_expression())
def test_eq(self):
st1 = SymbolTable()
st2 = SymbolTable()
self.assertTrue(st1 == st2)
st1.store("a", Expression(Type.int(), 0))
self.assertFalse(st1 == st2)
st2.store("a", Expression(Type.int(), 0))
self.assertTrue(st1 == st2)
self.assertNotEqual(SymbolTable(), None)
def test_to_expression_should_equal_self(self):
expressions = [Expression(Type.int(), 1), Expression(Type.decimal(), 1.1), Expression(Type.boolean(), False),
Expression(Type.vector(), [1.1, 2.2, -1.1]), Expression(Type.list_of(Type.int()), [1, 2, 3, 4]),
Expression(Type.list_of(Type.int()), []),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0]),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]]),
Expression(Type.int(), 1, "a"), Expression(Type.decimal(), 1.1, "a"),
Expression(Type.boolean(), False, "a"),
Expression(Type.vector(), [1.1, 2.2, -1.1], "a"),
Expression(Type.list_of(Type.int()), [1, 2, 3, 4], "a"),
Expression(Type.list_of(Type.int()), [], "a"),
Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"),
Expression(Type.list_of(Type.list_of(Type.vector())), [[[1.1, 2.2, -1.1], [1, 2, -1]]], "a")]
for expression in expressions:
self.assertEqual(expression, expression.to_expression())
def rotate_right(self, children) -> List[Command]:
expr, = children
if expr.type != Type.int() and expr.type != Type.decimal():
raise CompileError(
"Expression {} should have type int or decimal, but is {}".
format(expr.value, expr.type))
return [Command.rotate_right(radians(expr.value))]
def backward(self, children) -> List[Command]:
expr, = children
if expr.type != Type.int() and expr.type != Type.decimal():
raise CompileError(
"Expression {} should have type int or decimal, but is {}".
format(expr.value, expr.type))
return [Command.backward(expr.value)]
def test_container_not_list_should_give_error(self):
none_list_exprs = [Expression(Type.int(), 1, "a"), Expression(Type.decimal(), 1.0, "a"),
Expression(Type.boolean(), True, "a"), Expression(Type.string(), "abc", "a"),
Expression(Type.vector(), [1.0, 1.0, 1.0], "a")]
for none_list_expr in none_list_exprs:
with self.assertRaises(AssertionError) as context:
ListElem("a", none_list_expr, 0)
def test_declare_int_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { int a; }
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.int(), 0, ident="a"))
self.assertEqual(expected, actual)
def test_str(self):
st = SymbolTable()
st.store("a", Expression(Type.int(), 0))
st.store("b", Expression(Type.list_of(Type.boolean()), [True]))
expected = "SymbolTable: {\n" + \
" a -> Expression: { type: int, value: 0, ident: None }\n" + \
" b -> Expression: { type: list[boolean], value: [True], ident: None }\n" + \
"}"
self.assertEqual(expected, str(st))
def repeat(self, children) -> List[Command]:
expr = children[0]
commands = children[1:]
if expr.type != Type.int():
raise CompileError(
"Expression {} should have type int, but is {}".format(
expr.value, expr.type))
times = expr.value
return commands * times
def test_declare_and_assign_list_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () { list[int] a <- [1, 2, -3]; }
""", actual)
expected = SymbolTable()
expected.store(
"a", Expression(Type.list_of(Type.int()), [1, 2, -3], ident="a"))
self.assertEqual(expected, actual)
def test_eq(self):
list_elems1 = [None,
ListElem("a", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"), 0),
ListElem("b", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "b"), 0),
ListElem("a", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0], "a"), 0),
ListElem("a", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"), 1),
ListElem("a", Expression(Type.list_of(Type.list_of(Type.int())), [[[1], [1]]], "a"), 0),
ListElem("b[1]", Expression(Type.list_of(Type.boolean()), [True, False], "b[1]"), 0)]
list_elems2 = [None,
ListElem("a", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"), 0),
ListElem("b", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "b"), 0),
ListElem("a", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0], "a"), 0),
ListElem("a", Expression(Type.list_of(Type.decimal()), [1.0, 2.0, 3.0, 4.0], "a"), 1),
ListElem("a", Expression(Type.list_of(Type.list_of(Type.int())), [[[1], [1]]], "a"), 0),
ListElem("b[1]", Expression(Type.list_of(Type.boolean()), [True, False], "b[1]"), 0)]
for i in range(len(list_elems1)):
for j in range(len(list_elems2)):
if i == j:
self.assertEqual(list_elems1[i], list_elems2[j])
else:
self.assertNotEqual(list_elems1[i], list_elems2[j])
def test_assign_ident_int_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
int a;
a <- -1;
}
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.int(), -1, ident="a"))
self.assertEqual(expected, actual)
def test_assign_ident_list_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
list[int] a;
a <- [1, -1, +1];
}
""", actual)
expected = SymbolTable()
expected.store(
"a", Expression(Type.list_of(Type.int()), [1, -1, 1], ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_ident_empty_list_should_update_symbol_table(
self):
types = [
Type.int(),
Type.decimal(),
Type.string(),
Type.boolean(),
Type.vector(),
Type.list_of(Type.int()),
Type.list_of(Type.list_of(Type.int()))
]
for type in types:
actual = SymbolTable()
generate_commands(
"""
main () {{
list[{}] a <- [];
}}
""".format(type.type_name), actual)
expected = SymbolTable()
expected.store("a", Expression(Type.list_of(type), [], ident="a"))
self.assertEqual(expected, actual)
def test_declare_with_different_variable_name_should_change_symbol_table(
self):
for name in [
"a", "A", "_a", "_1", "_A", "abc", "Abc", "a12", "aA1", "_aA1"
]:
actual = SymbolTable()
generate_commands(
"""
main () {{ int {}; }}
""".format(name), actual)
expected = SymbolTable()
expected.store(name, Expression(Type.int(), 0, ident=name))
self.assertEqual(expected, actual)
def test_declare_and_then_assign_vector_elem_with_different_type_should_give_error(
self):
for type in [
Type.int(),
Type.string(),
Type.boolean(),
Type.vector(),
Type.list_of(Type.int()),
Type.list_of(Type.list_of(Type.int()))
]:
with self.assertRaises(CompileError) as context:
generate_commands("""
main () {{
vector a;
{} b;
a.x <- b;
}}
""".format(type.type_name))
self.assertTrue(
"Assigned value {} should have type decimal, but is {}".format(
type.default_value, type.type_name) in str(
context.exception))
def test_assign_list_elem_to_variable_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
list[int] a <- [0, 1, 2];
a[0] <- 1;
a[2] <- a[0];
}
""", actual)
expected = SymbolTable()
expected.store(
"a", Expression(Type.list_of(Type.int()), [1, 1, 1], ident="a"))
self.assertEqual(expected, actual)
def list_elem(self, children) -> ListElem:
expr1, expr2 = children
if not isinstance(expr1.type, ListType):
raise CompileError(
"Expression {} has type {} is not a list".format(
expr1, expr1.type))
if expr2.type != Type.int():
raise CompileError(
"Expression {} should have type int, but is {}".format(
expr2, expr2.type))
if expr2.value >= len(expr1.value):
raise CompileError(
"List {} has length {}, but has been assessed with out-of-range index {}"
.format(expr1.ident, len(expr1.value), expr2.value))
return ListElem(expr1.ident, expr1, expr2.value)
def test_assign_list_elem_to_variable_nested_should_update_symbol_table(
self):
actual = SymbolTable()
generate_commands(
"""
main () {
list[list[int]] a <- [[0, 1], [2, 3]];
a[0] <- [4, 5];
a[1][0] <- 6;
a[1][1] <- 7;
}
""", actual)
expected = SymbolTable()
expected.store(
"a",
Expression(Type.list_of(Type.list_of(Type.int())),
[[4, 5], [6, 7]],
ident="a"))
self.assertEqual(expected, actual)
def test_eq(self):
identifiers1 = [None, Identifier("a", None), Identifier("a", Expression(Type.int(), 1, "a")),
Identifier("a", Expression(Type.decimal(), 1.1, "a")),
Identifier("b", Expression(Type.int(), 1, "b")),
Identifier("b", Expression(Type.list_of(Type.int()), [], "b"))]
identifiers2 = [None, Identifier("a", None), Identifier("a", Expression(Type.int(), 1, "a")),
Identifier("a", Expression(Type.decimal(), 1.1, "a")),
Identifier("b", Expression(Type.int(), 1, "b")),
Identifier("b", Expression(Type.list_of(Type.int()), [], "b"))]
for i in range(len(identifiers1)):
for j in range(len(identifiers2)):
if i == j:
self.assertEqual(identifiers1[i], identifiers2[j])
else:
self.assertNotEqual(identifiers1[i], identifiers2[j])
def test_eq(self):
types1 = [
None,
Type.int(),
Type.decimal(),
Type.string(),
Type.boolean(),
Type.vector(),
Type.list_of(Type.int()),
Type.list_of(Type.decimal()),
Type.list_of(Type.list_of(Type.int())),
Type.list_of(Type.list_of(Type.decimal()))
]
types2 = [
None,
Type.int(),
Type.decimal(),
Type.string(),
Type.boolean(),
Type.vector(),
Type.list_of(Type.int()),
Type.list_of(Type.decimal()),
Type.list_of(Type.list_of(Type.int())),
Type.list_of(Type.list_of(Type.decimal()))
]
for i in range(len(types1)):
for j in range(len(types2)):
if i == j:
self.assertEqual(types1[i], types2[j])
else:
self.assertNotEqual(types1[i], types2[j])
self.assertEqual(Type.empty_list(), Type.empty_list())
for type in types1:
if isinstance(type, ListType):
self.assertEqual(Type.empty_list(), type)
self.assertEqual(type, Type.empty_list())
else:
self.assertNotEqual(Type.empty_list(), type)
self.assertNotEqual(type, Type.empty_list())
