| from clang.cindex import Cursor |
| from clang.cindex import File |
| from clang.cindex import SourceLocation |
| from clang.cindex import SourceRange |
| from .util import get_cursor |
| from .util import get_tu |
| |
| import unittest |
| |
| |
| baseInput="int one;\nint two;\n" |
| |
| |
| class TestLocation(unittest.TestCase): |
| def assert_location(self, loc, line, column, offset): |
| self.assertEqual(loc.line, line) |
| self.assertEqual(loc.column, column) |
| self.assertEqual(loc.offset, offset) |
| |
| def test_location(self): |
| tu = get_tu(baseInput) |
| one = get_cursor(tu, 'one') |
| two = get_cursor(tu, 'two') |
| |
| self.assertIsNotNone(one) |
| self.assertIsNotNone(two) |
| |
| self.assert_location(one.location,line=1,column=5,offset=4) |
| self.assert_location(two.location,line=2,column=5,offset=13) |
| |
| # adding a linebreak at top should keep columns same |
| tu = get_tu('\n' + baseInput) |
| one = get_cursor(tu, 'one') |
| two = get_cursor(tu, 'two') |
| |
| self.assertIsNotNone(one) |
| self.assertIsNotNone(two) |
| |
| self.assert_location(one.location,line=2,column=5,offset=5) |
| self.assert_location(two.location,line=3,column=5,offset=14) |
| |
| # adding a space should affect column on first line only |
| tu = get_tu(' ' + baseInput) |
| one = get_cursor(tu, 'one') |
| two = get_cursor(tu, 'two') |
| |
| self.assert_location(one.location,line=1,column=6,offset=5) |
| self.assert_location(two.location,line=2,column=5,offset=14) |
| |
| # define the expected location ourselves and see if it matches |
| # the returned location |
| tu = get_tu(baseInput) |
| |
| file = File.from_name(tu, 't.c') |
| location = SourceLocation.from_position(tu, file, 1, 5) |
| cursor = Cursor.from_location(tu, location) |
| |
| one = get_cursor(tu, 'one') |
| self.assertIsNotNone(one) |
| self.assertEqual(one, cursor) |
| |
| # Ensure locations referring to the same entity are equivalent. |
| location2 = SourceLocation.from_position(tu, file, 1, 5) |
| self.assertEqual(location, location2) |
| location3 = SourceLocation.from_position(tu, file, 1, 4) |
| self.assertNotEqual(location2, location3) |
| |
| offset_location = SourceLocation.from_offset(tu, file, 5) |
| cursor = Cursor.from_location(tu, offset_location) |
| verified = False |
| for n in [n for n in tu.cursor.get_children() if n.spelling == 'one']: |
| self.assertEqual(n, cursor) |
| verified = True |
| |
| self.assertTrue(verified) |
| |
| def test_extent(self): |
| tu = get_tu(baseInput) |
| one = get_cursor(tu, 'one') |
| two = get_cursor(tu, 'two') |
| |
| self.assert_location(one.extent.start,line=1,column=1,offset=0) |
| self.assert_location(one.extent.end,line=1,column=8,offset=7) |
| self.assertEqual(baseInput[one.extent.start.offset:one.extent.end.offset], "int one") |
| |
| self.assert_location(two.extent.start,line=2,column=1,offset=9) |
| self.assert_location(two.extent.end,line=2,column=8,offset=16) |
| self.assertEqual(baseInput[two.extent.start.offset:two.extent.end.offset], "int two") |
| |
| file = File.from_name(tu, 't.c') |
| location1 = SourceLocation.from_position(tu, file, 1, 1) |
| location2 = SourceLocation.from_position(tu, file, 1, 8) |
| |
| range1 = SourceRange.from_locations(location1, location2) |
| range2 = SourceRange.from_locations(location1, location2) |
| self.assertEqual(range1, range2) |
| |
| location3 = SourceLocation.from_position(tu, file, 1, 6) |
| range3 = SourceRange.from_locations(location1, location3) |
| self.assertNotEqual(range1, range3) |