public FunctionPointerType()
: base(null)
{
this.function = new MethodReference ();
this.function.Name = "method";
this.etype = MD.ElementType.FnPtr;
}
internal MethodSpecification(MethodReference method)
{
if (method == null)
throw new ArgumentNullException ("method");
this.method = method;
this.token = new MetadataToken (TokenType.MethodSpec);
}
public static MethodReference MakeGeneric(this MethodReference self, params TypeReference [] arguments)
{
var reference = new MethodReference {
Name = self.Name,
DeclaringType = self.DeclaringType.MakeGenericType (arguments),
HasThis = self.HasThis,
ExplicitThis = self.ExplicitThis,
ReturnType = self.ReturnType,
CallingConvention = self.CallingConvention,
};
foreach (var parameter in self.Parameters)
reference.Parameters.Add (new ParameterDefinition (parameter.ParameterType));
foreach (var generic_parameter in self.GenericParameters)
reference.GenericParameters.Add (new GenericParameter (generic_parameter.Name, reference));
return reference;
}
public GenericInstanceMethod(MethodReference method)
: base(method)
{
}
internal CustomAttribute(uint signature, MethodReference constructor)
{
this.signature = signature;
this.constructor = constructor;
this.resolved = false;
}
public CustomAttribute(MethodReference constructor, byte [] blob)
{
this.constructor = constructor;
this.resolved = false;
this.blob = blob;
}
public CustomAttribute(MethodReference constructor)
{
this.constructor = constructor;
this.resolved = true;
}
private static bool IsVarArgCallTo (MethodDefinition method, MethodReference reference)
{
if (method.Parameters.Count >= reference.Parameters.Count)
return false;
if (reference.GetSentinelPosition () != method.Parameters.Count)
return false;
for (int i = 0; i < method.Parameters.Count; i++)
if (!AreSame (method.Parameters [i].ParameterType, reference.Parameters [i].ParameterType))
return false;
return true;
}
public static MethodDefinition GetMethod (Collection<MethodDefinition> methods, MethodReference reference)
{
for (int i = 0; i < methods.Count; i++) {
var method = methods [i];
if (method.Name != reference.Name)
continue;
if (method.HasGenericParameters != reference.HasGenericParameters)
continue;
if (method.HasGenericParameters && method.GenericParameters.Count != reference.GenericParameters.Count)
continue;
if (!AreSame (method.ReturnType, reference.ReturnType))
continue;
if (method.IsVarArg () != reference.IsVarArg ())
continue;
if (method.IsVarArg () && IsVarArgCallTo (method, reference))
return method;
if (method.HasParameters != reference.HasParameters)
continue;
if (!method.HasParameters && !reference.HasParameters)
return method;
if (!AreSame (method.Parameters, reference.Parameters))
continue;
return method;
}
return null;
}
MethodDefinition GetMethod (TypeDefinition type, MethodReference reference)
{
while (type != null) {
var method = GetMethod (type.Methods, reference);
if (method != null)
return method;
if (type.BaseType == null)
return null;
type = Resolve (type.BaseType);
}
return null;
}
public virtual MethodDefinition Resolve (MethodReference method)
{
if (method == null)
throw new ArgumentNullException ("method");
var type = Resolve (method.DeclaringType);
if (type == null)
return null;
method = method.GetElementMethod ();
if (!type.HasMethods)
return null;
return GetMethod (type, method);
}
internal CallSite()
{
this.signature = new MethodReference ();
this.signature.token = new MetadataToken (TokenType.Signature, 0);
}