clang/bindings/python/tests/cindex/test_tokens.py

   1 import os
   2
   3 from clang.cindex import Config, CursorKind, SourceLocation, SourceRange, TokenKind
   4
   5 if "CLANG_LIBRARY_PATH" in os.environ:
   6     Config.set_library_path(os.environ["CLANG_LIBRARY_PATH"])
   7
   8 import unittest
   9
  10 from .util import get_tu
  11
  12
  13 class TestTokens(unittest.TestCase):
  14     def test_token_to_cursor(self):
  15         """Ensure we can obtain a Cursor from a Token instance."""
  16         tu = get_tu("int i = 5;")
  17         r = tu.get_extent("t.c", (0, 9))
  18         tokens = list(tu.get_tokens(extent=r))
  19
  20         self.assertEqual(len(tokens), 4)
  21         self.assertEqual(tokens[1].spelling, "i")
  22         self.assertEqual(tokens[1].kind, TokenKind.IDENTIFIER)
  23
  24         cursor = tokens[1].cursor
  25         self.assertEqual(cursor.kind, CursorKind.VAR_DECL)
  26         self.assertEqual(tokens[1].cursor, tokens[2].cursor)
  27
  28     def test_token_location(self):
  29         """Ensure Token.location works."""
  30
  31         tu = get_tu("int foo = 10;")
  32         r = tu.get_extent("t.c", (0, 11))
  33
  34         tokens = list(tu.get_tokens(extent=r))
  35         self.assertEqual(len(tokens), 4)
  36
  37         loc = tokens[1].location
  38         self.assertIsInstance(loc, SourceLocation)
  39         self.assertEqual(loc.line, 1)
  40         self.assertEqual(loc.column, 5)
  41         self.assertEqual(loc.offset, 4)
  42
  43     def test_token_extent(self):
  44         """Ensure Token.extent works."""
  45         tu = get_tu("int foo = 10;")
  46         r = tu.get_extent("t.c", (0, 11))
  47
  48         tokens = list(tu.get_tokens(extent=r))
  49         self.assertEqual(len(tokens), 4)
  50
  51         extent = tokens[1].extent
  52         self.assertIsInstance(extent, SourceRange)
  53
  54         self.assertEqual(extent.start.offset, 4)
  55         self.assertEqual(extent.end.offset, 7)