Files
isle/tools/isledecomp/tests/test_demangler.py
MS 3f03940fcb Match vtables with virtual inheritance (#717)
* Match vtables with virtual inheritance

* Simplify vtable name check

* Thunk alert
2024-03-23 18:01:40 -04:00

84 lines
2.4 KiB
Python

import pytest
from isledecomp.cvdump.demangler import (
demangle_string_const,
demangle_vtable,
parse_encoded_number,
InvalidEncodedNumberError,
get_vtordisp_name,
)
string_demangle_cases = [
("??_C@_08LIDF@December?$AA@", 8, False),
("??_C@_0L@EGPP@english?9nz?$AA@", 11, False),
(
"??_C@_1O@POHA@?$AA?$CI?$AAn?$AAu?$AAl?$AAl?$AA?$CJ?$AA?$AA?$AA?$AA?$AA?$AH?$AA?$AA?$AA?$AA?$AA?$AA?$AA?$9A?$AE?$;I@",
14,
True,
),
("??_C@_00A@?$AA@", 0, False),
("??_C@_01A@?$AA?$AA@", 1, False),
]
@pytest.mark.parametrize("symbol, strlen, is_utf16", string_demangle_cases)
def test_strings(symbol, is_utf16, strlen):
s = demangle_string_const(symbol)
assert s.len == strlen
assert s.is_utf16 == is_utf16
encoded_numbers = [
("A@", 0),
("AA@", 0), # would never happen?
("P@", 15),
("BA@", 16),
("BCD@", 291),
]
@pytest.mark.parametrize("string, value", encoded_numbers)
def test_encoded_numbers(string, value):
assert parse_encoded_number(string) == value
def test_invalid_encoded_number():
with pytest.raises(InvalidEncodedNumberError):
parse_encoded_number("Hello")
vtable_cases = [
("??_7LegoCarBuildAnimPresenter@@6B@", "LegoCarBuildAnimPresenter::`vftable'"),
("??_7?$MxCollection@PAVLegoWorld@@@@6B@", "MxCollection<LegoWorld *>::`vftable'"),
(
"??_7?$MxPtrList@VLegoPathController@@@@6B@",
"MxPtrList<LegoPathController>::`vftable'",
),
("??_7Renderer@Tgl@@6B@", "Tgl::Renderer::`vftable'"),
("??_7LegoExtraActor@@6B0@@", "LegoExtraActor::`vftable'{for `LegoExtraActor'}"),
(
"??_7LegoExtraActor@@6BLegoAnimActor@@@",
"LegoExtraActor::`vftable'{for `LegoAnimActor'}",
),
(
"??_7LegoAnimActor@@6B?$LegoContainer@PAM@@@",
"LegoAnimActor::`vftable'{for `LegoContainer<float *>'}",
),
]
@pytest.mark.parametrize("symbol, class_name", vtable_cases)
def test_vtable(symbol, class_name):
assert demangle_vtable(symbol) == class_name
def test_vtordisp():
"""Make sure we can accurately detect an adjuster thunk symbol"""
assert get_vtordisp_name("") is None
assert get_vtordisp_name("?ClassName@LegoExtraActor@@UBEPBDXZ") is None
assert (
get_vtordisp_name("?ClassName@LegoExtraActor@@$4PPPPPPPM@A@BEPBDXZ") is not None
)
# A function called vtordisp
assert get_vtordisp_name("?vtordisp@LegoExtraActor@@UBEPBDXZ") is None