/// <summary>
/// Initialises a new TypeSigniture from the <paramref name="signiture"/> starting at the
/// specified <paramref name="offset"/>.
/// </summary>
/// <param name="signiture">The signiture to parse the type from.</param>
/// <param name="offset">The offset to start reading from.</param>
public TypeSignatureToken(byte[] signiture, Offset offset)
: base(SignatureTokens.Type)
{
ElementTypeSignatureToken type = new ElementTypeSignatureToken(signiture, offset);
TypeSignatureToken childType;
Tokens.Add(type);
ElementType = type;
switch (type.ElementType)
{
case ElementTypes.SZArray:
while (CustomModifierToken.IsToken(signiture, offset))
{
CustomModifierToken modifier = new CustomModifierToken(signiture, offset);
Tokens.Add(modifier);
}
childType = new TypeSignatureToken(signiture, offset);
Tokens.Add(childType);
break;
case ElementTypes.Ptr:
while (CustomModifierToken.IsToken(signiture, offset))
{
CustomModifierToken modifier = new CustomModifierToken(signiture, offset);
Tokens.Add(modifier);
}
childType = new TypeSignatureToken(signiture, offset);
Tokens.Add(childType);
break;
case ElementTypes.GenericInstance:
ElementTypeSignatureToken genericType = new ElementTypeSignatureToken(signiture, offset);
Tokens.Add(genericType);
GenericArgumentCountSignatureToken argCount = new GenericArgumentCountSignatureToken(signiture, offset);
Tokens.Add(argCount);
for (int i = 0; i < argCount.Count; i++)
{
TypeSignatureToken genArgType = new TypeSignatureToken(signiture, offset);
Tokens.Add(genArgType);
}
break;
case ElementTypes.Array:
childType = new TypeSignatureToken(signiture, offset);
Tokens.Add(childType);
Tokens.Add(new ArrayShapeSignatureToken(signiture, offset));
break;
}
}
/// <summary>
/// Method which performs the actual conversion of a signiture to a cref string.
/// </summary>
/// <param name="sb">The string builder to hold the converted text</param>
/// <param name="assembly">The assembly the current parameter is defined in</param>
/// <param name="param">The parameter definition, required for token resolution</param>
/// <param name="currentToken">The current token to converty</param>
/// <param name="elementType">The type of element the token represents</param>
/// <param name="resolvedType">The resolved type for this token.</param>
private void Convert(StringBuilder sb, AssemblyDef assembly, ParamDef param, SignatureToken currentToken, ElementTypes elementType, TypeRef resolvedType)
{
StringBuilder convertedSigniture = sb;
if (currentToken.TokenType == SignatureTokens.Param)
{
ParamSignatureToken paramToken = currentToken as ParamSignatureToken;
SignatureToken childToken = paramToken.Tokens[paramToken.Tokens.Count - 1];
if (childToken.TokenType == SignatureTokens.Type)
{
currentToken = childToken;
elementType = ((TypeSignatureToken)childToken).ElementType.ElementType;
}
else
{
currentToken = childToken;
elementType = ((ElementTypeSignatureToken)childToken).ElementType;
}
}
TypeSignatureToken typeToken = currentToken as TypeSignatureToken;
ElementTypeSignatureToken elementToken = currentToken as ElementTypeSignatureToken;
switch (elementType)
{
case ElementTypes.Var: ConvertVar(convertedSigniture, typeToken.ElementType.Token, param); break;
case ElementTypes.MVar: ConvertMVar(convertedSigniture, typeToken.ElementType.Token, param); break;
case ElementTypes.SZArray:
// TODO: Fix the custom modifier section
if (typeToken.Tokens[0] is CustomModifierToken)
{
NotImplementedException ex = new NotImplementedException("Custom modifiers are not implemented on SZArray");
ex.Data["token"] = currentToken;
throw ex;
}
ElementTypes szArrayElementType;
if (typeToken.Tokens[1].TokenType == SignatureTokens.Type)
{
szArrayElementType = ((TypeSignatureToken)typeToken.Tokens[1]).ElementType.ElementType;
}
else
{
szArrayElementType = ((ElementTypeSignatureToken)typeToken.Tokens[1]).ElementType;
}
Convert(
sb,
assembly,
param,
typeToken.Tokens[1],
szArrayElementType,
resolvedType);
convertedSigniture.Append("[]");
break;
case ElementTypes.Array:
ArrayShapeSignatureToken shape = typeToken.Tokens.Last() as ArrayShapeSignatureToken;
ConvertArray(convertedSigniture, resolvedType, shape);
break;
case ElementTypes.GenericInstance:
TypeRef genericType = ((ElementTypeSignatureToken)typeToken.Tokens[1]).ResolveToken(assembly);
GetTypeName(convertedSigniture, genericType);
GenericArgumentCountSignatureToken argsCount = typeToken.GetGenericArgumentCount();
bool isFirstArgument = true;
if (argsCount.Count > 0)
{
sb.Append(GenericStart);
for (int j = 0; j < argsCount.Count; j++)
{
if (isFirstArgument)
{
isFirstArgument = false;
}
else
{
sb.Append(",");
}
TypeRef argResolvedType;
ElementTypes elType;
if (typeToken.Tokens[j + 3].TokenType == SignatureTokens.ElementType)
{
ElementTypeSignatureToken gESig = (ElementTypeSignatureToken)typeToken.Tokens[j + 3];
argResolvedType = gESig.ResolveToken(assembly);
elType = gESig.ElementType;
}
else
{
TypeSignatureToken gTSig = (TypeSignatureToken)typeToken.Tokens[j + 3];
argResolvedType = gTSig.ResolveType(assembly, param);
elType = gTSig.ElementType.ElementType;
}
Convert(
sb,
assembly,
param,
typeToken.Tokens[j + 3],
elType,
argResolvedType);
}
sb.Append(GenericEnd);
}
break;
case ElementTypes.Class:
case ElementTypes.ValueType:
case ElementTypes.Char:
case ElementTypes.I:
case ElementTypes.I1:
case ElementTypes.I2:
case ElementTypes.I4:
case ElementTypes.I8:
case ElementTypes.Object:
case ElementTypes.R4:
case ElementTypes.R4_HFA:
case ElementTypes.R8:
case ElementTypes.R8_HFA:
case ElementTypes.String:
case ElementTypes.U:
case ElementTypes.U1:
case ElementTypes.U2:
case ElementTypes.U4:
case ElementTypes.U8:
case ElementTypes.TypedByRef:
case ElementTypes.Boolean:
GetTypeName(convertedSigniture, resolvedType);
break;
case ElementTypes.Ptr:
GetTypeName(convertedSigniture, resolvedType);
convertedSigniture.Append("*");
break;
case ElementTypes.FunctionPointer:
NotImplementedException fnPtrEx = new NotImplementedException("Function Pointer is not implemented yet.");
fnPtrEx.Data["token"] = currentToken;
throw fnPtrEx;
}
}
