public void Execute(AdviceSpec spec)
{
foreach (Navigator aspectNav in spec.AspectNavigators)
{
IMethodDefinition aspectMethod = Narrow.Interceptor(aspectNav, spec);
foreach (Navigator targetNav in spec.TargetNavigators)
{
Instruction targetCallInstruction = Narrow.CallInstruction(targetNav, spec);
MethodReference targetMethod = (MethodReference)targetCallInstruction.Operand;
MethodDefinition containerMethod = Narrow.Method(targetNav.Parent, spec);
// Prevent recursive weaving
if (targetMethod != aspectMethod &&
containerMethod != aspectMethod &&
!Cil.BelongsToAspectDng(targetMethod) &&
!Cil.BelongsToAspectDng(aspectMethod) &&
!Cil.BelongsToAspectDng(containerMethod) &&
targetMethod.GenericParameters.Count == 0 &&
targetMethod.DeclaringType.GenericParameters.Count == 0)
{
// Cannot weave on acces to boxed arrays. Methods look like int32[0...,0...]::Get(int32, int32)
if (targetMethod.DeclaringType.Name.IndexOf("]") == -1 &&
targetMethod.ToString().IndexOf("&") == -1
// To prevent base.SameMethod() calls from child types, event if AroundBody already occurred
&& Cil.GetOriginalMethodName(targetMethod) != Cil.GetOriginalMethodName(containerMethod)
)
{
AddInterceptor(targetCallInstruction, containerMethod, aspectMethod);
}
}
}
}
}
public void Execute(AdviceSpec spec)
{
foreach (Navigator aspectNav in spec.AspectNavigators)
{
MethodDefinition aspectMethod = Narrow.Interceptor(aspectNav, spec);
foreach (Navigator targetNav in spec.TargetNavigators)
{
Instruction targetCallInstruction = Narrow.Instruction(targetNav, spec);
MethodDefinition targetMethod = Narrow.Method(targetNav.Parent, spec);
// We don't want to intercept volatile field accessors (marshalling problem)
string fieldTypeName = ((FieldReference)targetCallInstruction.Operand).FieldType.Name;
if (fieldTypeName.IndexOf(typeof(System.Runtime.CompilerServices.IsVolatile).Name) == -1)
{
AddInterceptor(targetCallInstruction, targetMethod, aspectMethod);
}
}
}
}
public void Execute(AdviceSpec spec)
{
foreach (Navigator aspectNav in spec.AspectNavigators)
{
MethodDefinition aspectMetaMethod = Narrow.Method(aspectNav, spec);
MethodInfo aspectMethod = Cil.Aspects.GetType(aspectMetaMethod.DeclaringType.FullName).
GetMethod(aspectMetaMethod.Name);
bool preconditions = aspectMethod.IsStatic &&
aspectMethod.ReturnType.FullName == typeof(string).FullName &&
aspectMethod.GetParameters().Length == 1 &&
aspectMethod.GetParameters()[0].ParameterType.FullName == typeof(TypeDefinition).FullName;
if (!preconditions)
{
throw new AdviceException("Aspect method signature must match : \n" +
"public static string YourMethod(Mono.Cecil.TypeDefinition td)", spec);
}
foreach (Navigator targetNav in spec.TargetNavigators)
{
TypeDefinition targetType = Narrow.TypeDefinition(targetNav, spec);
// Only insert members on classes (not structs because fields MUST be initialized in the ctor, no field initializer)
preconditions = !targetType.FullName.StartsWith("<") &&
!targetType.IsValueType &&
!targetType.IsInterface &&
!(targetType.BaseType != null && targetType.BaseType.Name == "Delegate");
if (preconditions)
{
string code = aspectMethod.Invoke(null, new object[] { targetType }) as string;
if (code != null)
{
string className = DynamicClassName + ++m_ClassIndex;
code = new StringBuilder("public class ").
Append(className).Append(" { \n").
Append(code).Append("\n}").ToString();
try {
// CodeDom
CompilerResults results = m_Compiler.CompileAssemblyFromSource(m_CompilerParams, code);
TypeDefinition dynamicType = AssemblyFactory.GetAssembly(results.PathToAssembly).
MainModule.Types[className];
// Copy every method and field from the dynamic type to the targetTypeDef
dynamicType = Cil.TargetMainModule.Inject(dynamicType);
foreach (MethodDefinition method in dynamicType.Methods)
{
targetType.Methods.Add(method.Clone());
}
foreach (FieldDefinition field in dynamicType.Fields)
{
targetType.Fields.Add(field.Clone());
}
if (File.Exists(m_Path))
{
File.Delete(m_Path);
}
} catch (Exception e) {
Console.WriteLine("error " + e);
}
}
}
}
// Remove aspect method from target assembly
TypeDefinition typeDef = (TypeDefinition)aspectMetaMethod.DeclaringType;
typeDef.Methods.Remove(aspectMetaMethod);
}
}