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# Copyright 2014-2017 Insight Software Consortium.
# Copyright 2004-2009 Roman Yakovenko.
# Distributed under the Boost Software License, Version 1.0.
# See http://www.boost.org/LICENSE_1_0.txt
import pytest
from . import autoconfig
from pygccxml import parser
from pygccxml import declarations
TEST_FILES = ['test_function_pointer.hpp']
@pytest.fixture
def global_ns():
COMPILATION_MODE = parser.COMPILATION_MODE.ALL_AT_ONCE
config = autoconfig.cxx_parsers_cfg.config.clone()
decls = parser.parse(TEST_FILES, config, COMPILATION_MODE)
global_ns = declarations.get_global_namespace(decls)
global_ns.init_optimizer()
return global_ns
def test_function_pointer(global_ns):
"""
Test working with pointers and function pointers.
"""
# Test on a function pointer
criteria = declarations.variable_matcher(name="func1")
variables = declarations.matcher.find(criteria, global_ns)
assert variables[0].name == "func1"
assert isinstance(variables[0].decl_type, declarations.pointer_t) is True
assert str(variables[0].decl_type) == "void (*)( int,double )"
assert declarations.is_calldef_pointer(variables[0].decl_type) is True
assert isinstance(
declarations.remove_pointer(variables[0].decl_type),
declarations.free_function_type_t
) is True
# Get the function (free_function_type_t) and test the return and
# argument types
function = variables[0].decl_type.base
assert isinstance(function.return_type, declarations.void_t)
assert isinstance(function.arguments_types[0], declarations.int_t)
assert isinstance(function.arguments_types[1], declarations.double_t)
# Test on a normal pointer
criteria = declarations.variable_matcher(name="myPointer")
variables = declarations.matcher.find(criteria, global_ns)
assert variables[0].name == "myPointer"
assert isinstance(variables[0].decl_type, declarations.pointer_t)
assert declarations.is_calldef_pointer(variables[0].decl_type) is False
assert isinstance(
declarations.remove_pointer(variables[0].decl_type),
declarations.volatile_t
) is True
# Test on function pointer in struct (x8)
for d in global_ns.declarations:
if d.name == "x8":
assert isinstance(d.decl_type, declarations.pointer_t) is True
assert declarations.is_calldef_pointer(d.decl_type)
assert isinstance(
declarations.remove_pointer(d.decl_type),
declarations.member_function_type_t
) is True
assert str(declarations.remove_pointer(d.decl_type)) == \
"void ( ::some_struct_t::* )( )"
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