private static CommonField CreateCommonField(MonoCecilField monoCecilField, IEnumerable <ReflectionField> reflectionFields)
{
var matchedReflectionField = reflectionFields.FirstOrDefault(propertyInfo => propertyInfo.Name == monoCecilField.Name);
if (matchedReflectionField == null)
{
return(null);
}
var fieldAttributes = JoinAttributes(matchedReflectionField.Attributes, monoCecilField.Attributes);
return(new CommonField(fieldAttributes, monoCecilField, matchedReflectionField));
}
private void GenerateGetMethodBody(MonoCecilProperty property, MonoCecilField backgroundField)
{
log.Info("Generate get method body...");
var propertyGetMethod = property.GetMethod;
if (propertyGetMethod == null)
{
const string errorMessage = "Patching property must have get method accessor";
log.Error(errorMessage);
throw new PropertyPatchingException(errorMessage, property.FullName);
}
var getMethodBodyInstructions = propertyGetMethod.Body.Instructions;
getMethodBodyInstructions.Clear();
getMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldarg_0));
getMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldfld, backgroundField));
getMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ret));
propertyGetMethod.RemoveAttribute(typeof(CompilerGeneratedAttribute));
log.Info("Get method body was generated");
}
public virtual MonoCecilInstruction CreateInstruction(OpCode opCode, MonoCecilField monoCecilField)
{
return(new MonoCecilInstruction(Instruction.Create(opCode, monoCecilField.Instance)));
}
private void GenerateSetMethodBody(MonoCecilAssembly monoCecilAssembly, CommonType viewModelBase, MonoCecilProperty property, string propertyName, MonoCecilField backgroundField)
{
log.Info("Generate method reference on Set method in ViewModelBase...");
var propertySetMethod = property.SetMethod;
if (propertySetMethod == null)
{
const string errorMessage = "Patching property must have set method accessor";
log.Error(errorMessage);
throw new PropertyPatchingException(errorMessage, property.FullName);
}
var setMethodFromViewModelBase = monoCecilFactory.CreateGenericInstanceMethod(GetSetMethodFromViewModelBase(viewModelBase.MonoCecilType));
setMethodFromViewModelBase.AddGenericArgument(property.PropertyType);
var setMethodInViewModelBaseWithGenericParameter = monoCecilAssembly.MainModule.Import(setMethodFromViewModelBase);
log.Info("Generate set method body...");
var setMethodBodyInstructions = propertySetMethod.Body.Instructions;
setMethodBodyInstructions.Clear();
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldarg_0));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldstr, propertyName));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldarg_0));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldflda, backgroundField));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldarg_1));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ldc_I4_0));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Call, setMethodInViewModelBaseWithGenericParameter));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Pop));
setMethodBodyInstructions.Add(monoCecilFactory.CreateInstruction(OpCodes.Ret));
propertySetMethod.RemoveAttribute(typeof(CompilerGeneratedAttribute));
log.Info("Set method body was generated");
}
internal CommonField(CommonAttribute[] attributes, MonoCecilField monoCecilField, ReflectionField reflectionField)
{
Attributes = attributes;
MonoCecilField = monoCecilField;
ReflectionField = reflectionField;
}
