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//
// ParameterDefinition.cs
//
// Author:
// Jb Evain (jbevain@gmail.com)
//
// Copyright (c) 2008 - 2011 Jb Evain
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using Mono.Collections.Generic;
namespace Mono.Cecil {
public sealed class ParameterDefinition : ParameterReference, ICustomAttributeProvider, IConstantProvider, IMarshalInfoProvider {
ushort attributes;
internal IMethodSignature method;
object constant = Mixin.NotResolved;
Collection<CustomAttribute> custom_attributes;
MarshalInfo marshal_info;
public ParameterAttributes Attributes {
get { return (ParameterAttributes) attributes; }
set { attributes = (ushort) value; }
}
public IMethodSignature Method {
get { return method; }
}
public int Sequence {
get {
if (method == null)
return -1;
return method.HasImplicitThis () ? index + 1 : index;
}
}
public bool HasConstant {
get {
this.ResolveConstant (ref constant, parameter_type.Module);
return constant != Mixin.NoValue;
}
set { if (!value) constant = Mixin.NoValue; }
}
public object Constant {
get { return HasConstant ? constant : null; }
set { constant = value; }
}
public bool HasCustomAttributes {
get {
if (custom_attributes != null)
return custom_attributes.Count > 0;
return this.GetHasCustomAttributes (parameter_type.Module);
}
}
public Collection<CustomAttribute> CustomAttributes {
get { return custom_attributes ?? (this.GetCustomAttributes (ref custom_attributes, parameter_type.Module)); }
}
public bool HasMarshalInfo {
get {
if (marshal_info != null)
return true;
return this.GetHasMarshalInfo (parameter_type.Module);
}
}
public MarshalInfo MarshalInfo {
get { return marshal_info ?? (this.GetMarshalInfo (ref marshal_info, parameter_type.Module)); }
set { marshal_info = value; }
}
#region ParameterAttributes
public bool IsIn {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.In); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.In, value); }
}
public bool IsOut {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.Out); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Out, value); }
}
public bool IsLcid {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.Lcid); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Lcid, value); }
}
public bool IsReturnValue {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.Retval); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Retval, value); }
}
public bool IsOptional {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.Optional); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Optional, value); }
}
public bool HasDefault {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.HasDefault); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.HasDefault, value); }
}
public bool HasFieldMarshal {
get { return attributes.GetAttributes ((ushort) ParameterAttributes.HasFieldMarshal); }
set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.HasFieldMarshal, value); }
}
#endregion
internal ParameterDefinition (TypeReference parameterType, IMethodSignature method)
: this (string.Empty, ParameterAttributes.None, parameterType)
{
this.method = method;
}
public ParameterDefinition (TypeReference parameterType)
: this (string.Empty, ParameterAttributes.None, parameterType)
{
}
public ParameterDefinition (string name, ParameterAttributes attributes, TypeReference parameterType)
: base (name, parameterType)
{
this.attributes = (ushort) attributes;
this.token = new MetadataToken (TokenType.Param);
}
public override ParameterDefinition Resolve ()
{
return this;
}
}
}
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