private bool ProcessSequence(InstructionSequence sequence, string extensionMethodName, Func <AutoPropertyInfo, Instruction> createInstruction)
{
for (var index = 0; index < sequence.Count; index++)
{
var instruction = sequence[index];
if (!instruction.IsExtensionMethodCall(extensionMethodName))
{
continue;
}
if (sequence.Count < 4 ||
sequence[0].OpCode != OpCodes.Ldarg_0 ||
!sequence[1].IsPropertyGetterCall(out string?propertyName) ||
sequence.Skip(index + 1).Any(inst => inst?.OpCode != OpCodes.Nop) ||
!_autoPropertyToBackingFieldMap.TryGetValue(propertyName, out var propertyInfo))
{
var message = $"Invalid usage of extension method '{extensionMethodName}()': '{extensionMethodName}()' is only valid on auto-properties of class {_method.DeclaringType?.Name}";
_logger.LogError(message, sequence.Point);
return(false);
}
_logger.LogInfo($"Replace {extensionMethodName}() on property {propertyName} in method {_method}.");
sequence[index] = createInstruction(propertyInfo !);
sequence.RemoveAt(1);
return(true);
}
return(true);
}
private void BypassAutoPropertySetters([NotNull] MethodDefinition method, [NotNull] AutoPropertyToBackingFieldMap autoPropertyToBackingFieldMap)
{
// ReSharper disable once PossibleNullReferenceException
var instructions = method.Body.Instructions;
// ReSharper disable once PossibleNullReferenceException
for (var index = 0; index < instructions.Count; index++)
{
var instruction = instructions[index];
// ReSharper disable once AssignNullToNotNullAttribute
if (!instruction.IsPropertySetterCall(out string propertyName))
{
continue;
}
if (!autoPropertyToBackingFieldMap.TryGetValue(propertyName, out var propertyInfo))
{
continue;
}
_logger.LogInfo($"Replace setter of property {propertyName} in method {method.FullName} with backing field assignment.");
instructions[index] = Instruction.Create(OpCodes.Stfld, propertyInfo.BackingField);
}
}
private void BypassAutoPropertySetters(MethodDefinition method, AutoPropertyToBackingFieldMap autoPropertyToBackingFieldMap)
{
var instructions = method.Body.Instructions;
for (var index = 0; index < instructions.Count; index++)
{
var instruction = instructions[index];
if (!instruction.IsPropertySetterCall(out string?propertyName) || propertyName == null)
{
continue;
}
if (!autoPropertyToBackingFieldMap.TryGetValue(propertyName, out var propertyInfo))
{
continue;
}
_logger.LogInfo($"Replace setter of property {propertyName} in method {method.FullName} with backing field assignment.");
instructions[index] = Instruction.Create(OpCodes.Stfld, propertyInfo.BackingField);
}
}
