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CilProperty.cs
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CilProperty.cs
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using System.Collections.Generic;
using System.Reflection.Metadata.Cil.Decoder;
using System.Reflection.Metadata.Cil.Visitor;
using System.Reflection.Metadata.Decoding;
using System.Text;
namespace System.Reflection.Metadata.Cil
{
public struct CilProperty : ICilVisitable
{
private PropertyDefinition _propertyDef;
private CilReaders _readers;
private string _name;
private MethodSignature<CilType> _signature;
private IEnumerable<CilCustomAttribute> _customAttributes;
private CilMethodDefinition _getter;
private CilMethodDefinition _setter;
private CilConstant _defaultValue;
private bool _isDefaultValueInitialized;
private bool _isGetterInitialized;
private bool _isSetterInitialized;
private PropertyAccessors _accessors;
private bool _isSignatureInitialized;
private CilTypeDefinition _typeDefinition;
private int _token;
internal static CilProperty Create(PropertyDefinition propertyDef, int token, ref CilReaders readers, CilTypeDefinition typeDefinition)
{
CilProperty property = new CilProperty();
property._typeDefinition = typeDefinition;
property._propertyDef = propertyDef;
property._readers = readers;
property._isSignatureInitialized = false;
property._isDefaultValueInitialized = false;
property._isGetterInitialized = false;
property._isSetterInitialized = false;
property._token = token;
property._accessors = propertyDef.GetAccessors();
return property;
}
internal int Token
{
get
{
return _token;
}
}
public CilTypeDefinition DeclaringType
{
get
{
return _typeDefinition;
}
}
public string Name
{
get
{
return CilDecoder.GetCachedValue(_propertyDef.Name, _readers, ref _name);
}
}
public bool HasGetter
{
get
{
return !_accessors.Getter.IsNil;
}
}
public bool HasSetter
{
get
{
return !_accessors.Setter.IsNil;
}
}
public bool HasDefault
{
get
{
return Attributes.HasFlag(PropertyAttributes.HasDefault);
}
}
public CilConstant DefaultValue
{
get
{
if (!_isDefaultValueInitialized)
{
if (!HasDefault)
{
throw new InvalidOperationException("Property doesn't have default value");
}
_isDefaultValueInitialized = true;
_defaultValue = GetDefaultValue();
}
return _defaultValue;
}
}
public CilMethodDefinition Getter
{
get
{
if (!_isGetterInitialized)
{
_isGetterInitialized = true;
if (HasGetter)
{
_getter = CilMethodDefinition.Create(_accessors.Getter, ref _readers, _typeDefinition);
}
}
return _getter;
}
}
public CilMethodDefinition Setter
{
get
{
if (!_isSetterInitialized)
{
_isSetterInitialized = true;
if (HasSetter)
{
_setter = CilMethodDefinition.Create(_accessors.Setter, ref _readers, _typeDefinition);
}
}
return _setter;
}
}
public MethodSignature<CilType> Signature
{
get
{
if (!_isSignatureInitialized)
{
_isSignatureInitialized = true;
_signature = SignatureDecoder.DecodeMethodSignature(_propertyDef.Signature, _readers.Provider);
}
return _signature;
}
}
public IEnumerable<CilCustomAttribute> CustomAttributes
{
get
{
if(_customAttributes == null)
{
_customAttributes = GetCustomAttributes();
}
return _customAttributes;
}
}
public PropertyAttributes Attributes
{
get
{
return _propertyDef.Attributes;
}
}
public void Accept(ICilVisitor visitor)
{
visitor.Visit(this);
}
public string GetDecodedSignature()
{
string attributes = GetAttributesForSignature();
StringBuilder signature = new StringBuilder();
if (Signature.Header.IsInstance)
{
signature.Append("instance ");
}
signature.Append(Signature.ReturnType);
return string.Format("{0}{1} {2}{3}", attributes, signature.ToString(), Name, CilDecoder.DecodeSignatureParamerTypes(Signature));
}
private IEnumerable<CilCustomAttribute> GetCustomAttributes()
{
foreach(var handle in _propertyDef.GetCustomAttributes())
{
var attribute = _readers.MdReader.GetCustomAttribute(handle);
yield return new CilCustomAttribute(attribute, ref _readers);
}
}
private string GetAttributesForSignature()
{
if (Attributes.HasFlag(PropertyAttributes.SpecialName))
{
return "specialname ";
}
if (Attributes.HasFlag(PropertyAttributes.RTSpecialName))
{
return "rtspecialname ";
}
return string.Empty;
}
private CilConstant GetDefaultValue()
{
Constant constant = _readers.MdReader.GetConstant(_propertyDef.GetDefaultValue());
return CilConstant.Create(constant, ref _readers);
}
}
}