private CilInstructionCollection CreateDummyMethod(bool hasThis, int paramCount, int localCount)
{
var flags = hasThis
? MethodAttributes.Public
: MethodAttributes.Public | MethodAttributes.Static;
var parameterTypes = Enumerable.Repeat <TypeSignature>(_module.CorLibTypeFactory.Object, paramCount);
var signature = hasThis
? MethodSignature.CreateInstance(_module.CorLibTypeFactory.Void, parameterTypes)
: MethodSignature.CreateStatic(_module.CorLibTypeFactory.Void, parameterTypes);
var method = new MethodDefinition("Dummy", flags, signature);
var body = new CilMethodBody(method);
for (int i = 0; i < localCount; i++)
{
body.LocalVariables.Add(new CilLocalVariable(_module.CorLibTypeFactory.Object));
}
method.MethodBody = body;
return(body.Instructions);
}
private static MethodDefinition CreateDummyMethod(ModuleDefinition module, string name)
{
var method = new MethodDefinition(name,
MethodAttributes.Public | MethodAttributes.Abstract | MethodAttributes.Virtual
| MethodAttributes.NewSlot,
MethodSignature.CreateInstance(module.CorLibTypeFactory.Void));
return(method);
}
public void NewObjVoidMethodShouldPushSingleElement()
{
var type = new TypeReference(_module, null, "SomeType");
var member = new MemberReference(type, "SomeMethod",
MethodSignature.CreateInstance(_module.CorLibTypeFactory.Int32));
var instruction = new CilInstruction(CilOpCodes.Newobj, member);
Assert.Equal(1, instruction.GetStackPushCount());
}
public void CallVoidMethodShouldPushZeroElements()
{
var type = new TypeReference(_module, null, "SomeType");
var member = new MemberReference(type, "SomeMethod",
MethodSignature.CreateInstance(_module.CorLibTypeFactory.Void));
var instruction = new CilInstruction(CilOpCodes.Call, member);
Assert.Equal(0, instruction.GetStackPushCount());
}
public void CallInstanceWithZeroParametersShouldPopOneElement()
{
var method = new MethodDefinition("Method", MethodAttributes.Static,
MethodSignature.CreateStatic(_module.CorLibTypeFactory.Int32));
method.CilMethodBody = new CilMethodBody(method);
var type = new TypeReference(_module, null, "SomeType");
var member = new MemberReference(type, "SomeMethod",
MethodSignature.CreateInstance(_module.CorLibTypeFactory.Void));
var instruction = new CilInstruction(CilOpCodes.Call, member);
Assert.Equal(1, instruction.GetStackPopCount(method.CilMethodBody));
}
private static MethodDefinition CreateDummyMethod(ModuleDefinition module, string name, int parameterCount = 0)
{
var method = new MethodDefinition(name,
MethodAttributes.Public | MethodAttributes.Abstract | MethodAttributes.Virtual
| MethodAttributes.NewSlot,
MethodSignature.CreateInstance(module.CorLibTypeFactory.Void));
for (ushort i = 1; i <= parameterCount; i++)
{
method.Signature.ParameterTypes.Add(module.CorLibTypeFactory.Object);
method.ParameterDefinitions.Add(new ParameterDefinition(i, $"{name}Arg{i}", 0));
}
method.Parameters.PullUpdatesFromMethodSignature();
return(method);
}
