def test_variable_declaration(self):
decl = parse_statement('int a').accept(statements.Declaration)
assdecl = parse_statement('int a=3').accept(statements.Declaration)
self.assertEqual(decl.identifier.name, 'a')
self.assertEqual(decl.type_.name, 'int')
self.assertEqual(assdecl.identifier.name, 'a')
self.assertEqual(assdecl.type_.name, 'int')
self.assertEqual(assdecl.expression.value, '3')
def test_tolerate_whitespace(self):
s1 = parse_statement('int a = 3')
self.assertIsInstance(s1, statements.Declaration)
s2 = parse_statement('b = \n\t6\r')
self.assertIsInstance(s2, statements.Assignment)
e1 = parse_expression('a + 5 + 9')
self.assertIsInstance(e1, expressions.Sum)
e2 = parse_expression('- 4')
self.assertIsInstance(e2, expressions.Minus)
def test_assignment(self):
ass = parse_statement('a=3').accept(statements.Assignment)
self.assertEqual(ass.assignee.name, 'a')
self.assertEqual(ass.expression.value, '3')
def test_empty_statement(self):
nostmt = parse_statement('')
self.assertIsInstance(nostmt, statements.EmptyStatement)
def test_namespaces(self):
'test namespace references in identifiers and assignments'
stmt1 = parse_statement('int a')
self.assertIsInstance(stmt1.get_namespace(), Namespace)
def test_function(self):
blk = parse_statement('int a(){}')
self.assertIsInstance(blk, functions.FunctionDefinition)