/// <summary>
/// Reads custom attribute named arguments
/// </summary>
/// <param name="module">Owner module</param>
/// <param name="stream">A stream positioned at the the first byte of the CA blob</param>
/// <param name="numNamedArgs">Number of named arguments to read from <paramref name="stream"/></param>
/// <param name="gpContext">Generic parameter context</param>
/// <returns>A list of <see cref="CANamedArgument"/>s or <c>null</c> if some error
/// occurred.</returns>
internal static List <CANamedArgument> ReadNamedArguments(ModuleDef module, IBinaryReader stream, int numNamedArgs, GenericParamContext gpContext)
{
try
{
using (var reader = new CustomAttributeReader(module, stream, false, gpContext))
return(reader.ReadNamedArguments(numNamedArgs));
}
catch (CABlobParserException)
{
return(null);
}
catch (IOException)
{
return(null);
}
}
/// <summary>
/// Reads the new (.NET 2.0+) DeclSecurity blob format
/// </summary>
/// <returns></returns>
private ThreadSafe.IList <SecurityAttribute> ReadBinaryFormat()
{
int numAttrs = (int)reader.ReadCompressedUInt32();
var list = ThreadSafeListCreator.Create <SecurityAttribute>(numAttrs);
for (int i = 0; i < numAttrs; i++)
{
var name = ReadUTF8String();
// Use CA search rules. Some tools don't write the fully qualified name.
var attrRef = TypeNameParser.ParseReflection(module, UTF8String.ToSystemStringOrEmpty(name), new CAAssemblyRefFinder(module), gpContext);
int blobLength = (int)reader.ReadCompressedUInt32();
int numNamedArgs = (int)reader.ReadCompressedUInt32();
var namedArgs = CustomAttributeReader.ReadNamedArguments(module, reader, numNamedArgs, gpContext);
if (namedArgs == null)
{
throw new ApplicationException("Could not read named arguments");
}
list.Add(new SecurityAttribute(attrRef, namedArgs));
}
return(list);
}
/// <summary>
/// Reads a custom attribute
/// </summary>
/// <param name="module">Owner module</param>
/// <param name="stream">A stream positioned at the the first byte of the CA blob</param>
/// <param name="ctor">Custom attribute constructor</param>
/// <param name="gpContext">Generic parameter context</param>
/// <returns>A new <see cref="CustomAttribute"/> instance</returns>
public static CustomAttribute Read(ModuleDef module, IBinaryReader stream, ICustomAttributeType ctor, GenericParamContext gpContext)
{
using (var reader = new CustomAttributeReader(module, stream, gpContext))
{
try
{
if (stream == null || ctor == null)
{
return(reader.CreateRaw(ctor));
}
return(reader.Read(ctor));
}
catch (CABlobParserException)
{
return(reader.CreateRaw(ctor));
}
catch (IOException)
{
return(reader.CreateRaw(ctor));
}
}
}
/// <summary>
/// Reads a custom attribute
/// </summary>
/// <param name="readerModule">Reader module</param>
/// <param name="ctor">Custom attribute constructor</param>
/// <param name="offset">Offset of custom attribute in the #Blob stream</param>
/// <param name="gpContext">Generic parameter context</param>
/// <returns>A new <see cref="CustomAttribute"/> instance</returns>
public static CustomAttribute Read(ModuleDefMD readerModule, ICustomAttributeType ctor, uint offset, GenericParamContext gpContext)
{
using (var reader = new CustomAttributeReader(readerModule, offset, gpContext))
{
try
{
if (ctor == null)
{
return(reader.CreateRaw(ctor));
}
return(reader.Read(ctor));
}
catch (CABlobParserException)
{
return(reader.CreateRaw(ctor));
}
catch (IOException)
{
return(reader.CreateRaw(ctor));
}
}
}
