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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ""" Test the API of the symtable module. """ import symtable import unittest TEST_CODE = """ import sys glob = 42 some_var = 12 some_non_assigned_global_var = 11 some_assigned_global_var = 11 class Mine: instance_var = 24 def a_method(p1, p2): pass def spam(a, b, *var, **kw): global bar global some_assigned_global_var some_assigned_global_var = 12 bar = 47 some_var = 10 x = 23 glob def internal(): return x def other_internal(): nonlocal some_var some_var = 3 return some_var return internal def foo(): pass def namespace_test(): pass def namespace_test(): pass """ def find_block(block, name): for ch in block.get_children(): if ch.get_name() == name: return ch class SymtableTest(unittest.TestCase): top = symtable.symtable(TEST_CODE, "?", "exec") # These correspond to scopes in TEST_CODE Mine = find_block(top, "Mine") a_method = find_block(Mine, "a_method") spam = find_block(top, "spam") internal = find_block(spam, "internal") other_internal = find_block(spam, "other_internal") foo = find_block(top, "foo") def test_type(self): self.assertEqual(self.top.get_type(), "module") self.assertEqual(self.Mine.get_type(), "class") self.assertEqual(self.a_method.get_type(), "function") self.assertEqual(self.spam.get_type(), "function") self.assertEqual(self.internal.get_type(), "function") def test_optimized(self): self.assertFalse(self.top.is_optimized()) self.assertTrue(self.spam.is_optimized()) def test_nested(self): self.assertFalse(self.top.is_nested()) self.assertFalse(self.Mine.is_nested()) self.assertFalse(self.spam.is_nested()) self.assertTrue(self.internal.is_nested()) def test_children(self): self.assertTrue(self.top.has_children()) self.assertTrue(self.Mine.has_children()) self.assertFalse(self.foo.has_children()) def test_lineno(self): self.assertEqual(self.top.get_lineno(), 0) self.assertEqual(self.spam.get_lineno(), 14) def test_function_info(self): func = self.spam self.assertEqual(sorted(func.get_parameters()), ["a", "b", "kw", "var"]) expected = ['a', 'b', 'internal', 'kw', 'other_internal', 'some_var', 'var', 'x'] self.assertEqual(sorted(func.get_locals()), expected) self.assertEqual(sorted(func.get_globals()), ["bar", "glob", "some_assigned_global_var"]) self.assertEqual(self.internal.get_frees(), ("x",)) def test_globals(self): self.assertTrue(self.spam.lookup("glob").is_global()) self.assertFalse(self.spam.lookup("glob").is_declared_global()) self.assertTrue(self.spam.lookup("bar").is_global()) self.assertTrue(self.spam.lookup("bar").is_declared_global()) self.assertFalse(self.internal.lookup("x").is_global()) self.assertFalse(self.Mine.lookup("instance_var").is_global()) self.assertTrue(self.spam.lookup("bar").is_global()) # Module-scope globals are both global and local self.assertTrue(self.top.lookup("some_non_assigned_global_var").is_global()) self.assertTrue(self.top.lookup("some_assigned_global_var").is_global()) def test_nonlocal(self): self.assertFalse(self.spam.lookup("some_var").is_nonlocal()) self.assertTrue(self.other_internal.lookup("some_var").is_nonlocal()) expected = ("some_var",) self.assertEqual(self.other_internal.get_nonlocals(), expected) def test_local(self): self.assertTrue(self.spam.lookup("x").is_local()) self.assertFalse(self.spam.lookup("bar").is_local()) # Module-scope globals are both global and local self.assertTrue(self.top.lookup("some_non_assigned_global_var").is_local()) self.assertTrue(self.top.lookup("some_assigned_global_var").is_local()) def test_free(self): self.assertTrue(self.internal.lookup("x").is_free()) def test_referenced(self): self.assertTrue(self.internal.lookup("x").is_referenced()) self.assertTrue(self.spam.lookup("internal").is_referenced()) self.assertFalse(self.spam.lookup("x").is_referenced()) def test_parameters(self): for sym in ("a", "var", "kw"): self.assertTrue(self.spam.lookup(sym).is_parameter()) self.assertFalse(self.spam.lookup("x").is_parameter()) def test_symbol_lookup(self): self.assertEqual(len(self.top.get_identifiers()), len(self.top.get_symbols())) self.assertRaises(KeyError, self.top.lookup, "not_here") def test_namespaces(self): self.assertTrue(self.top.lookup("Mine").is_namespace()) self.assertTrue(self.Mine.lookup("a_method").is_namespace()) self.assertTrue(self.top.lookup("spam").is_namespace()) self.assertTrue(self.spam.lookup("internal").is_namespace()) self.assertTrue(self.top.lookup("namespace_test").is_namespace()) self.assertFalse(self.spam.lookup("x").is_namespace()) self.assertTrue(self.top.lookup("spam").get_namespace() is self.spam) ns_test = self.top.lookup("namespace_test") self.assertEqual(len(ns_test.get_namespaces()), 2) self.assertRaises(ValueError, ns_test.get_namespace) def test_assigned(self): self.assertTrue(self.spam.lookup("x").is_assigned()) self.assertTrue(self.spam.lookup("bar").is_assigned()) self.assertTrue(self.top.lookup("spam").is_assigned()) self.assertTrue(self.Mine.lookup("a_method").is_assigned()) self.assertFalse(self.internal.lookup("x").is_assigned()) def test_annotated(self): st1 = symtable.symtable('def f():\n x: int\n', 'test', 'exec') st2 = st1.get_children()[0] self.assertTrue(st2.lookup('x').is_local()) self.assertTrue(st2.lookup('x').is_annotated()) self.assertFalse(st2.lookup('x').is_global()) st3 = symtable.symtable('def f():\n x = 1\n', 'test', 'exec') st4 = st3.get_children()[0] self.assertTrue(st4.lookup('x').is_local()) self.assertFalse(st4.lookup('x').is_annotated()) # Test that annotations in the global scope are valid after the # variable is declared as nonlocal. st5 = symtable.symtable('global x\nx: int', 'test', 'exec') self.assertTrue(st5.lookup("x").is_global()) # Test that annotations for nonlocals are valid after the # variable is declared as nonlocal. st6 = symtable.symtable('def g():\n' ' x = 2\n' ' def f():\n' ' nonlocal x\n' ' x: int', 'test', 'exec') def test_imported(self): self.assertTrue(self.top.lookup("sys").is_imported()) def test_name(self): self.assertEqual(self.top.get_name(), "top") self.assertEqual(self.spam.get_name(), "spam") self.assertEqual(self.spam.lookup("x").get_name(), "x") self.assertEqual(self.Mine.get_name(), "Mine") def test_class_info(self): self.assertEqual(self.Mine.get_methods(), ('a_method',)) def test_filename_correct(self): ### Bug tickler: SyntaxError file name correct whether error raised ### while parsing or building symbol table. def checkfilename(brokencode, offset): try: symtable.symtable(brokencode, "spam", "exec") except SyntaxError as e: self.assertEqual(e.filename, "spam") self.assertEqual(e.lineno, 1) self.assertEqual(e.offset, offset) else: self.fail("no SyntaxError for %r" % (brokencode,)) checkfilename("def f(x): foo)(", 14) # parse-time checkfilename("def f(x): global x", 11) # symtable-build-time symtable.symtable("pass", b"spam", "exec") with self.assertWarns(DeprecationWarning), \ self.assertRaises(TypeError): symtable.symtable("pass", bytearray(b"spam"), "exec") with self.assertWarns(DeprecationWarning): symtable.symtable("pass", memoryview(b"spam"), "exec") with self.assertRaises(TypeError): symtable.symtable("pass", list(b"spam"), "exec") def test_eval(self): symbols = symtable.symtable("42", "?", "eval") def test_single(self): symbols = symtable.symtable("42", "?", "single") def test_exec(self): symbols = symtable.symtable("def f(x): return x", "?", "exec") def test_bytes(self): top = symtable.symtable(TEST_CODE.encode('utf8'), "?", "exec") self.assertIsNotNone(find_block(top, "Mine")) code = b'# -*- coding: iso8859-15 -*-\nclass \xb4: pass\n' top = symtable.symtable(code, "?", "exec") self.assertIsNotNone(find_block(top, "\u017d")) def test_symtable_repr(self): self.assertEqual(str(self.top), "") self.assertEqual(str(self.spam), "") if __name__ == '__main__': unittest.main()