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_declare_and_assign_string_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () { string a <- "\0a"; }
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.string(), "\0a", ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_vector_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () { vector a <- (1.0, 2.0, -3.0); }
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.vector(), [1, 2, -3], ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_decimal_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () { decimal a <- 1.0; }
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.decimal(), 1.0, ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_boolean_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () { boolean a <- true; }
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.boolean(), True, ident="a"))
self.assertEqual(expected, actual)
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):
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_assign_vector_elem_to_temp_vector_should_not_change_symbol_table(
self):
actual = SymbolTable()
generate_commands(
"""
main () {
(0.0, 0.0, 0.0).x <- 1.0;
}
""", actual)
expected = SymbolTable()
self.assertEqual(expected, actual)
def test_assign_ident_string_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
string a;
a <- "1";
}
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.string(), "1", ident="a"))
self.assertEqual(expected, actual)
def test_assign_ident_vector_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
vector a;
a <- (1.0, -1.0, +1.0);
}
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.vector(), [1, -1, 1], ident="a"))
self.assertEqual(expected, actual)
def test_assign_ident_decimal_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
decimal a;
a <- -1.5e10;
}
""", actual)
expected = SymbolTable()
expected.store("a", Expression(Type.decimal(), -1.5e10, 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_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_assign_vector_elem_to_variable_should_update_symbol_table(self):
for index, vector in zip(["x", "y", "z"],
[[-1.0, 0, 0], [0, -2.0, 0], [0, 0, -3.0]]):
actual = SymbolTable()
generate_commands(
"""
main () {{
vector a;
a.{} <- (-1.0, -2.0, -3.0).{};
}}
""".format(index, index), actual)
expected = SymbolTable()
expected.store("a", Expression(Type.vector(), vector, ident="a"))
self.assertEqual(expected, actual)
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 test_assign_list_elem_to_temp_vector_should_not_change_symbol_table(
self):
for code in [
"[0.0][0] <- 1.0", "[0][0] <- 1", "[[\"a\"]][0] <- [\"b\"]",
"[0.0, 1.0][0] <- 1.0"
]:
actual = SymbolTable()
generate_commands(
"""
main () {{
{};
}}
""".format(code), actual)
expected = SymbolTable()
self.assertEqual(expected, actual)
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_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_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 test_assign_list_elem_with_vector_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands(
"""
main () {
list[vector] a <- [(1.0, 2.0, 3.0), (4.0, 5.0, 6.0)];
a[0] <- (7.0, 8.0, 9.0);
a[1].x <- 10.0;
a[1].y <- 11.0;
a[1].z <- 12.0;
}
""", actual)
expected = SymbolTable()
expected.store(
"a",
Expression(Type.list_of(Type.vector()), [[7, 8, 9], [10, 11, 12]],
ident="a"))
self.assertEqual(expected, actual)
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_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_contains(self):
st = SymbolTable()
self.assertFalse("a" in st)
st.store("a", Expression(Type.int(), 0))
self.assertTrue("a" in st)
def test_get_expression(self):
st = SymbolTable()
st.store("a", Expression(Type.list_of(Type.int()), [1]))
self.assertEqual([1], st.get_expression("a").value)
self.assertEqual(1, st.get_expression("a").value[0])
self.assertEqual(Type.list_of(Type.int()), st.get_expression("a").type)
def __init__(self, symbol_table):
super().__init__()
self.symbol_table = SymbolTable(
) if symbol_table is None else symbol_table