1import os
2from clang.cindex import Config
3if 'CLANG_LIBRARY_PATH' in os.environ:
4    Config.set_library_path(os.environ['CLANG_LIBRARY_PATH'])
5
6from clang.cindex import CursorKind
7from clang.cindex import Index
8from clang.cindex import SourceLocation
9from clang.cindex import SourceRange
10from clang.cindex import TokenKind
11
12from .util import get_tu
13
14import unittest
15
16
17class TestTokens(unittest.TestCase):
18    def test_token_to_cursor(self):
19        """Ensure we can obtain a Cursor from a Token instance."""
20        tu = get_tu('int i = 5;')
21        r = tu.get_extent('t.c', (0, 9))
22        tokens = list(tu.get_tokens(extent=r))
23
24        self.assertEqual(len(tokens), 4)
25        self.assertEqual(tokens[1].spelling, 'i')
26        self.assertEqual(tokens[1].kind, TokenKind.IDENTIFIER)
27
28        cursor = tokens[1].cursor
29        self.assertEqual(cursor.kind, CursorKind.VAR_DECL)
30        self.assertEqual(tokens[1].cursor, tokens[2].cursor)
31
32    def test_token_location(self):
33        """Ensure Token.location works."""
34
35        tu = get_tu('int foo = 10;')
36        r = tu.get_extent('t.c', (0, 11))
37
38        tokens = list(tu.get_tokens(extent=r))
39        self.assertEqual(len(tokens), 4)
40
41        loc = tokens[1].location
42        self.assertIsInstance(loc, SourceLocation)
43        self.assertEqual(loc.line, 1)
44        self.assertEqual(loc.column, 5)
45        self.assertEqual(loc.offset, 4)
46
47    def test_token_extent(self):
48        """Ensure Token.extent works."""
49        tu = get_tu('int foo = 10;')
50        r = tu.get_extent('t.c', (0, 11))
51
52        tokens = list(tu.get_tokens(extent=r))
53        self.assertEqual(len(tokens), 4)
54
55        extent = tokens[1].extent
56        self.assertIsInstance(extent, SourceRange)
57
58        self.assertEqual(extent.start.offset, 4)
59        self.assertEqual(extent.end.offset, 7)
60