def test_wrapper(self):
CU = self.FFI.compile('''
struct A {
int a;
int b;
};
struct A init_A(int a, int b) {
struct A ret = {a,b};
return ret;
}
''')
FTy = pydffi.typeof(CU.funcs.init_A)
print(FTy.getWrapperLLVMStr("wrap"))
def test_func_ptr(self):
FFI = self.FFI
CU = FFI.compile('''
typedef struct
{
int a;
int b;
int res;
} Res;
typedef Res(*op)(int,int);
static Res get_res(int res, int a, int b) {
Res Ret = {a,b,res};
return Ret;
}
static Res add(int a, int b) {
return get_res(a+b,a,b);
}
static Res sub(int a, int b) {
return get_res(a-b,a,b);
}
op get_op(unsigned Id)
{
if (Id == 0) return add;
if (Id == 1) return sub;
return 0;
}
Res call(op f, int a, int b) {
return f(a,b);
}
''')
Add = CU.funcs.get_op(0)
Add = Add.obj
Res = Add(1, 4)
self.assertEqual(Res.res, 5)
sub_addr = pydffi.ptr(CU.funcs.sub)
Res = CU.funcs.call(sub_addr, 1, 5)
self.assertEqual(Res.res, -4)
subFuncTy = pydffi.typeof(CU.funcs.sub).type
funcByAddr = subFuncTy(sub_addr)
self.assertEqual(funcByAddr(1, 5).res, -4)
funcByAddr = subFuncTy(sub_addr.value)
self.assertEqual(funcByAddr(1, 5).res, -4)
def test_anon_struct(self):
CU = self.FFI.compile('''
struct A {
struct {
int a;
int b;
} s;
};
void dump(struct A a) {
printf("s.a=%d, s.b=%d\\n", a.s.a, a.s.b);
}
''')
A = CU.types.A()
Obj = A.s
Ty = pydffi.typeof(Obj)
fields = [f.name for f in iter(Ty)]
self.assertEqual(set(fields), set(("a", "b")))
# Copyright 2018 Adrien Guinet <*****@*****.**>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# RUN: "%python" "%s"
import pydffi
FFI = pydffi.FFI()
CU = FFI.compile('''
struct A {
int a;
int b;
};
struct A init_A(int a, int b) {
struct A ret = {a,b};
return ret;
}
''')
FTy = pydffi.typeof(CU.funcs.init_A)
print(FTy.getWrapperLLVMStr("wrap"))
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# RUN: "%python" "%s"
#
import pydffi
FFI = pydffi.FFI()
CU = FFI.compile('''
struct A {
struct {
int a;
int b;
} s;
};
void dump(struct A a) {
printf("s.a=%d, s.b=%d\\n", a.s.a, a.s.b);
}
''')
A = CU.types.A()
Obj = A.s
Ty = pydffi.typeof(Obj)
fields = [f.name for f in iter(Ty)]
assert (fields[0] == "a")
assert (fields[1] == "b")