1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
import os
from clang.cindex import Config
if "CLANG_LIBRARY_PATH" in os.environ:
Config.set_library_path(os.environ["CLANG_LIBRARY_PATH"])
from clang.cindex import Cursor
from clang.cindex import File
from clang.cindex import SourceLocation
from clang.cindex import SourceRange
from clang.cindex import TranslationUnit
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)
def test_is_system_location(self):
header = os.path.normpath("./fake/fake.h")
tu = TranslationUnit.from_source(
"fake.c",
[f"-isystem{os.path.dirname(header)}"],
unsaved_files=[
(
"fake.c",
"""
#include <fake.h>
int one;
""",
),
(header, "int two();"),
],
)
one = get_cursor(tu, "one")
two = get_cursor(tu, "two")
self.assertFalse(one.location.is_in_system_header)
self.assertTrue(two.location.is_in_system_header)
|
