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96 lines
3.1 KiB
96 lines
3.1 KiB
from clang.cindex import Cursor
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from clang.cindex import File
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from clang.cindex import SourceLocation
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from clang.cindex import SourceRange
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from .util import get_cursor
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from .util import get_tu
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baseInput="int one;\nint two;\n"
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def assert_location(loc, line, column, offset):
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assert loc.line == line
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assert loc.column == column
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assert loc.offset == offset
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def test_location():
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tu = get_tu(baseInput)
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one = get_cursor(tu, 'one')
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two = get_cursor(tu, 'two')
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assert one is not None
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assert two is not None
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assert_location(one.location,line=1,column=5,offset=4)
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assert_location(two.location,line=2,column=5,offset=13)
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# adding a linebreak at top should keep columns same
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tu = get_tu('\n' + baseInput)
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one = get_cursor(tu, 'one')
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two = get_cursor(tu, 'two')
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assert one is not None
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assert two is not None
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assert_location(one.location,line=2,column=5,offset=5)
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assert_location(two.location,line=3,column=5,offset=14)
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# adding a space should affect column on first line only
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tu = get_tu(' ' + baseInput)
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one = get_cursor(tu, 'one')
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two = get_cursor(tu, 'two')
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assert_location(one.location,line=1,column=6,offset=5)
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assert_location(two.location,line=2,column=5,offset=14)
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# define the expected location ourselves and see if it matches
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# the returned location
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tu = get_tu(baseInput)
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file = File.from_name(tu, 't.c')
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location = SourceLocation.from_position(tu, file, 1, 5)
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cursor = Cursor.from_location(tu, location)
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one = get_cursor(tu, 'one')
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assert one is not None
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assert one == cursor
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# Ensure locations referring to the same entity are equivalent.
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location2 = SourceLocation.from_position(tu, file, 1, 5)
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assert location == location2
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location3 = SourceLocation.from_position(tu, file, 1, 4)
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assert location2 != location3
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offset_location = SourceLocation.from_offset(tu, file, 5)
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cursor = Cursor.from_location(tu, offset_location)
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verified = False
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for n in [n for n in tu.cursor.get_children() if n.spelling == 'one']:
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assert n == cursor
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verified = True
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assert verified
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def test_extent():
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tu = get_tu(baseInput)
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one = get_cursor(tu, 'one')
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two = get_cursor(tu, 'two')
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assert_location(one.extent.start,line=1,column=1,offset=0)
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assert_location(one.extent.end,line=1,column=8,offset=7)
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assert baseInput[one.extent.start.offset:one.extent.end.offset] == "int one"
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assert_location(two.extent.start,line=2,column=1,offset=9)
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assert_location(two.extent.end,line=2,column=8,offset=16)
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assert baseInput[two.extent.start.offset:two.extent.end.offset] == "int two"
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file = File.from_name(tu, 't.c')
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location1 = SourceLocation.from_position(tu, file, 1, 1)
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location2 = SourceLocation.from_position(tu, file, 1, 8)
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range1 = SourceRange.from_locations(location1, location2)
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range2 = SourceRange.from_locations(location1, location2)
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assert range1 == range2
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location3 = SourceLocation.from_position(tu, file, 1, 6)
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range3 = SourceRange.from_locations(location1, location3)
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assert range1 != range3
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