Files
isle/tools/isledecomp/tests/test_parser.py
Christian Semmler 3b155bfe38 (Discussion/Proposals) Consistency regarding annotations of header-implemented functions (#316)
* Open discussion

* Move annotations of header-implemented functions back to `.h` files

* Adjust `README.md`

* Relocate annotation

* linter

* Comment markers in headers only, rename script, update github actions

* type hint compat

* Rename github action, better argparse for linter

* Type hints, working test for byname ignore

* Move annotation

* CI rename and enable warnfail, enforce mode always on

* Two step linting

* or one step

* continue on error

* two jobs instead

* Fixes

---------

Co-authored-by: disinvite <disinvite@users.noreply.github.com>
2023-12-12 20:27:17 +01:00

378 lines
11 KiB
Python

import pytest
from isledecomp.parser.parser import (
ReaderState,
DecompParser,
)
from isledecomp.parser.error import ParserError
@pytest.fixture(name="parser")
def fixture_parser():
return DecompParser()
def test_missing_sig(parser):
"""In the hopefully rare scenario that the function signature and marker
are swapped, we still have enough to match witch reccmp"""
parser.read_lines(
[
"void my_function()",
"// FUNCTION: TEST 0x1234",
"{",
"}",
]
)
assert parser.state == ReaderState.SEARCH
assert len(parser.functions) == 1
assert parser.functions[0].line_number == 3
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.MISSED_START_OF_FUNCTION
def test_not_exact_syntax(parser):
"""Alert to inexact syntax right here in the parser instead of kicking it downstream.
Doing this means we don't have to save the actual text."""
parser.read_line("// function: test 0x1234")
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.BAD_DECOMP_MARKER
def test_invalid_marker(parser):
"""We matched a decomp marker, but it's not one we care about"""
parser.read_line("// BANANA: TEST 0x1234")
assert parser.state == ReaderState.SEARCH
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.BOGUS_MARKER
def test_incompatible_marker(parser):
"""The marker we just read cannot be handled in the current parser state"""
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
"// GLOBAL: TEST 0x5000",
]
)
assert parser.state == ReaderState.SEARCH
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.INCOMPATIBLE_MARKER
def test_variable(parser):
"""Should identify a global variable"""
parser.read_lines(
[
"// GLOBAL: HELLO 0x1234",
"int g_value = 5;",
]
)
assert len(parser.variables) == 1
def test_synthetic_plus_marker(parser):
"""Marker tracking preempts synthetic name detection.
Should fail with error and not log the synthetic"""
parser.read_lines(
[
"// SYNTHETIC: HEY 0x555",
"// FUNCTION: HOWDY 0x1234",
]
)
assert len(parser.functions) == 0
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.INCOMPATIBLE_MARKER
def test_different_markers_different_module(parser):
"""Does it make any sense for a function to be a stub in one module,
but not in another? I don't know. But it's no problem for us."""
parser.read_lines(
[
"// FUNCTION: HOWDY 0x1234",
"// STUB: SUP 0x5555",
"void interesting_function() {",
"}",
]
)
assert len(parser.alerts) == 0
assert len(parser.functions) == 2
def test_different_markers_same_module(parser):
"""Now, if something is a regular function but then a stub,
what do we say about that?"""
parser.read_lines(
[
"// FUNCTION: HOWDY 0x1234",
"// STUB: HOWDY 0x5555",
"void interesting_function() {",
"}",
]
)
# Use first marker declaration, don't replace
assert len(parser.functions) == 1
assert parser.functions[0].is_stub is False
# Should alert to this
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.DUPLICATE_MODULE
def test_unexpected_synthetic(parser):
"""FUNCTION then SYNTHETIC should fail to report either one"""
parser.read_lines(
[
"// FUNCTION: HOWDY 0x1234",
"// SYNTHETIC: HOWDY 0x5555",
"void interesting_function() {",
"}",
]
)
assert parser.state == ReaderState.SEARCH
assert len(parser.functions) == 0
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.INCOMPATIBLE_MARKER
@pytest.mark.skip(reason="not implemented yet")
def test_duplicate_offset(parser):
"""Repeating the same module/offset in the same file is probably a typo"""
parser.read_lines(
[
"// GLOBAL: HELLO 0x1234",
"int x = 1;",
"// GLOBAL: HELLO 0x1234",
"int y = 2;",
]
)
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.DUPLICATE_OFFSET
def test_multiple_variables(parser):
"""Theoretically the same global variable can appear in multiple modules"""
parser.read_lines(
[
"// GLOBAL: HELLO 0x1234",
"// GLOBAL: WUZZUP 0x555",
"const char *g_greeting;",
]
)
assert len(parser.alerts) == 0
assert len(parser.variables) == 2
def test_multiple_variables_same_module(parser):
"""Should not overwrite offset"""
parser.read_lines(
[
"// GLOBAL: HELLO 0x1234",
"// GLOBAL: HELLO 0x555",
"const char *g_greeting;",
]
)
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.DUPLICATE_MODULE
assert len(parser.variables) == 1
assert parser.variables[0].offset == 0x1234
def test_multiple_vtables(parser):
parser.read_lines(
[
"// VTABLE: HELLO 0x1234",
"// VTABLE: TEST 0x5432",
"class MxString : public MxCore {",
]
)
assert len(parser.alerts) == 0
assert len(parser.vtables) == 2
assert parser.vtables[0].class_name == "MxString"
def test_multiple_vtables_same_module(parser):
"""Should not overwrite offset"""
parser.read_lines(
[
"// VTABLE: HELLO 0x1234",
"// VTABLE: HELLO 0x5432",
"class MxString : public MxCore {",
]
)
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.DUPLICATE_MODULE
assert len(parser.vtables) == 1
assert parser.vtables[0].offset == 0x1234
def test_synthetic(parser):
parser.read_lines(
[
"// SYNTHETIC: TEST 0x1234",
"// TestClass::TestMethod",
]
)
assert len(parser.functions) == 1
assert parser.functions[0].lookup_by_name is True
assert parser.functions[0].name == "TestClass::TestMethod"
def test_synthetic_same_module(parser):
parser.read_lines(
[
"// SYNTHETIC: TEST 0x1234",
"// SYNTHETIC: TEST 0x555",
"// TestClass::TestMethod",
]
)
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.DUPLICATE_MODULE
assert len(parser.functions) == 1
assert parser.functions[0].offset == 0x1234
def test_synthetic_no_comment(parser):
"""Synthetic marker followed by a code line (i.e. non-comment)"""
parser.read_lines(
[
"// SYNTHETIC: TEST 0x1234",
"int x = 123;",
]
)
assert len(parser.functions) == 0
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.BAD_SYNTHETIC
assert parser.state == ReaderState.SEARCH
def test_single_line_function(parser):
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
"int hello() { return 1234; }",
]
)
assert len(parser.functions) == 1
assert parser.functions[0].line_number == 2
assert parser.functions[0].end_line == 2
def test_indented_function(parser):
"""Track the number of whitespace characters when we begin the function
and check that against each closing curly brace we read.
Should not report a syntax warning if the function is indented"""
parser.read_lines(
[
" // FUNCTION: TEST 0x1234",
" void indented()",
" {",
" // TODO",
" }",
" // FUNCTION: NEXT 0x555",
]
)
assert len(parser.alerts) == 0
@pytest.mark.xfail(reason="todo")
def test_indented_no_curly_hint(parser):
"""Same as above, but opening curly brace is on the same line.
Without the hint of how many whitespace characters to check, can we
still identify the end of the function?"""
parser.read_lines(
[
" // FUNCTION: TEST 0x1234",
" void indented() {",
" }",
" // FUNCTION: NEXT 0x555",
]
)
assert len(parser.alerts) == 0
def test_implicit_lookup_by_name(parser):
"""FUNCTION (or STUB) offsets must directly precede the function signature.
If we detect a comment instead, we assume that this is a lookup-by-name
function and end here."""
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
"// TestClass::TestMethod()",
]
)
assert parser.state == ReaderState.SEARCH
assert len(parser.functions) == 1
assert parser.functions[0].lookup_by_name is True
assert parser.functions[0].name == "TestClass::TestMethod()"
def test_function_with_spaces(parser):
"""There should not be any spaces between the end of FUNCTION markers
and the start or name of the function. If it's a blank line, we can safely
ignore but should alert to this."""
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
" ",
"inline void test_function() { };",
]
)
assert len(parser.functions) == 1
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.UNEXPECTED_BLANK_LINE
def test_function_with_spaces_implicit(parser):
"""Same as above, but for implicit lookup-by-name"""
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
" ",
"// Implicit::Method",
]
)
assert len(parser.functions) == 1
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.UNEXPECTED_BLANK_LINE
@pytest.mark.xfail(reason="will assume implicit lookup-by-name function")
def test_function_is_commented(parser):
"""In an ideal world, we would recognize that there is no code here.
Some editors (or users) might comment the function on each line like this
but hopefully it is rare."""
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
"// int my_function()",
"// {",
"// return 5;",
"// }",
]
)
assert len(parser.functions) == 0
def test_unexpected_eof(parser):
"""If a decomp marker finds its way to the last line of the file,
report that we could not get anything from it."""
parser.read_lines(
[
"// FUNCTION: TEST 0x1234",
"// Cls::Method",
"// FUNCTION: TEST 0x5555",
]
)
parser.finish()
assert len(parser.functions) == 1
assert len(parser.alerts) == 1
assert parser.alerts[0].code == ParserError.UNEXPECTED_END_OF_FILE