FullNameCreator(bool isReflection, IFullNameCreatorHelper helper, StringBuilder sb)
{
this.sb = sb ?? new StringBuilder();
this.isReflection = isReflection;
this.helper = helper;
this.genericArguments = null;
this.recursionCounter = new RecursionCounter();
}
CustomAttributeReader(ModuleDef module, IBinaryReader reader, bool ownRerader)
{
this.module = module;
this.reader = reader;
this.ownReader = ownRerader;
this.genericArguments = null;
this.recursionCounter = new RecursionCounter();
this.verifyReadAllBytes = false;
}
CustomAttributeReader(ModuleDefMD readerModule, uint offset)
{
this.module = readerModule;
this.reader = readerModule.BlobStream.CreateStream(offset);
this.ownReader = true;
this.genericArguments = null;
this.recursionCounter = new RecursionCounter();
this.verifyReadAllBytes = false;
}
CustomAttributeReader(ModuleDef module, IBinaryReader reader, GenericParamContext gpContext)
{
this.module = module;
this.reader = reader;
this.ownReader = false;
this.genericArguments = null;
this.recursionCounter = new RecursionCounter();
this.verifyReadAllBytes = false;
this.gpContext = gpContext;
}
ModuleDef GetOwnerModule(TypeSig typeSig) {
if (typeSig == null)
return null;
if (!recursionCounter.Increment())
return null;
ModuleDef result;
var old = genericArguments;
typeSig = ReplaceGenericArg(typeSig);
switch (typeSig.ElementType) {
case ElementType.Void:
case ElementType.Boolean:
case ElementType.Char:
case ElementType.I1:
case ElementType.U1:
case ElementType.I2:
case ElementType.U2:
case ElementType.I4:
case ElementType.U4:
case ElementType.I8:
case ElementType.U8:
case ElementType.R4:
case ElementType.R8:
case ElementType.String:
case ElementType.TypedByRef:
case ElementType.I:
case ElementType.U:
case ElementType.Object:
case ElementType.ValueType:
case ElementType.Class:
result = GetOwnerModule(((TypeDefOrRefSig)typeSig).TypeDefOrRef);
break;
case ElementType.Ptr:
case ElementType.ByRef:
case ElementType.Array:
case ElementType.SZArray:
case ElementType.CModReqd:
case ElementType.CModOpt:
case ElementType.Pinned:
case ElementType.ValueArray:
case ElementType.Module:
result = GetOwnerModule(typeSig.Next);
break;
case ElementType.GenericInst:
var genericInstSig = (GenericInstSig)typeSig;
var genericType = genericInstSig.GenericType;
result = GetOwnerModule(genericType == null ? null : genericType.TypeDefOrRef);
break;
case ElementType.Var:
case ElementType.MVar:
case ElementType.FnPtr:
case ElementType.Sentinel:
case ElementType.End:
case ElementType.R:
case ElementType.Internal:
default:
result = null;
break;
}
genericArguments = old;
recursionCounter.Decrement();
return result;
}
void CreateTypeSigName(TypeSig typeSig, int flags) {
if (typeSig == null) {
sb.Append(NULLVALUE);
return;
}
if (!recursionCounter.Increment()) {
sb.Append(RECURSION_ERROR_RESULT_STRING);
return;
}
var old = genericArguments;
typeSig = ReplaceGenericArg(typeSig);
bool createNamespace = (flags & TYPESIG_NAMESPACE) != 0;
bool createName = (flags & TYPESIG_NAME) != 0;
switch (typeSig.ElementType) {
case ElementType.Void:
case ElementType.Boolean:
case ElementType.Char:
case ElementType.I1:
case ElementType.U1:
case ElementType.I2:
case ElementType.U2:
case ElementType.I4:
case ElementType.U4:
case ElementType.I8:
case ElementType.U8:
case ElementType.R4:
case ElementType.R8:
case ElementType.String:
case ElementType.TypedByRef:
case ElementType.I:
case ElementType.U:
case ElementType.Object:
case ElementType.ValueType:
case ElementType.Class:
if (createNamespace && createName)
CreateFullName(((TypeDefOrRefSig)typeSig).TypeDefOrRef);
else if (createNamespace)
CreateNamespace(((TypeDefOrRefSig)typeSig).TypeDefOrRef);
else if (createName)
CreateName(((TypeDefOrRefSig)typeSig).TypeDefOrRef);
break;
case ElementType.Ptr:
CreateTypeSigName(typeSig.Next, flags);
if (createName)
sb.Append('*');
break;
case ElementType.ByRef:
CreateTypeSigName(typeSig.Next, flags);
if (createName)
sb.Append('&');
break;
case ElementType.Array:
CreateTypeSigName(typeSig.Next, flags);
if (createName) {
var arraySig = (ArraySig)typeSig;
sb.Append('[');
if (arraySig.Rank == 0)
sb.Append("<RANK0>"); // Not allowed
else if (arraySig.Rank == 1)
sb.Append('*');
else for (int i = 0; i < (int)arraySig.Rank; i++) {
if (i != 0)
sb.Append(',');
if (!isReflection) {
const int NO_LOWER = int.MinValue;
const uint NO_SIZE = uint.MaxValue;
int lower = i >= arraySig.LowerBounds.Count ? NO_LOWER : arraySig.LowerBounds[i];
uint size = i >= arraySig.Sizes.Count ? NO_SIZE : arraySig.Sizes[i];
if (lower != NO_LOWER) {
sb.Append(lower);
sb.Append("..");
if (size != NO_SIZE)
sb.Append(lower + (int)size - 1);
else
sb.Append('.');
}
}
}
sb.Append(']');
}
break;
case ElementType.SZArray:
CreateTypeSigName(typeSig.Next, flags);
if (createName)
sb.Append("[]");
break;
case ElementType.CModReqd:
CreateTypeSigName(typeSig.Next, flags);
if (!isReflection && createName) {
sb.Append(" modreq(");
if (createNamespace)
CreateFullName(((ModifierSig)typeSig).Modifier);
else
CreateName(((ModifierSig)typeSig).Modifier);
sb.Append(")");
}
break;
case ElementType.CModOpt:
CreateTypeSigName(typeSig.Next, flags);
if (!isReflection && createName) {
sb.Append(" modopt(");
if (createNamespace)
CreateFullName(((ModifierSig)typeSig).Modifier);
else
CreateName(((ModifierSig)typeSig).Modifier);
sb.Append(")");
}
break;
case ElementType.Pinned:
CreateTypeSigName(typeSig.Next, flags);
break;
case ElementType.ValueArray:
CreateTypeSigName(typeSig.Next, flags);
if (createName) {
var valueArraySig = (ValueArraySig)typeSig;
sb.Append(" ValueArray(");
sb.Append(valueArraySig.Size);
sb.Append(')');
}
break;
case ElementType.Module:
CreateTypeSigName(typeSig.Next, flags);
if (createName) {
var moduleSig = (ModuleSig)typeSig;
sb.Append(" Module(");
sb.Append(moduleSig.Index);
sb.Append(')');
}
break;
case ElementType.GenericInst:
var genericInstSig = (GenericInstSig)typeSig;
var typeGenArgs = genericInstSig.GenericArguments;
CreateTypeSigName(genericInstSig.GenericType, flags);
if (createNamespace && createName) {
if (isReflection) {
sb.Append('[');
for (int i = 0; i < typeGenArgs.Count; i++) {
if (i != 0)
sb.Append(',');
var genArg = typeGenArgs[i];
bool mustWriteAssembly = MustUseAssemblyName(genArg);
if (mustWriteAssembly)
sb.Append('[');
CreateFullName(genArg);
if (mustWriteAssembly) {
sb.Append(", ");
var asm = GetDefinitionAssembly(genArg);
if (asm == null)
sb.Append(NULLVALUE);
else
sb.Append(EscapeAssemblyName(GetAssemblyName(asm)));
sb.Append(']');
}
}
sb.Append(']');
}
else {
sb.Append('<');
for (int i = 0; i < typeGenArgs.Count; i++) {
if (i != 0)
sb.Append(',');
CreateFullName(typeGenArgs[i]);
}
sb.Append('>');
}
}
break;
case ElementType.Var:
if (createName) {
sb.Append('!');
sb.Append(((GenericSig)typeSig).Number);
}
break;
case ElementType.MVar:
if (createName) {
sb.Append("!!");
sb.Append(((GenericSig)typeSig).Number);
}
break;
case ElementType.FnPtr:
if (createName) {
if (isReflection)
sb.Append("(fnptr)");
else
CreateMethodFullName(null, null, ((FnPtrSig)typeSig).MethodSig);
}
break;
case ElementType.Sentinel:
break;
case ElementType.End:
case ElementType.R:
case ElementType.Internal:
default:
break;
}
genericArguments = old;
recursionCounter.Decrement();
}
TypeSig ReplaceGenericArg(TypeSig typeSig) {
if (genericArguments == null)
return typeSig;
var newTypeSig = genericArguments.Resolve(typeSig);
if (newTypeSig != typeSig)
genericArguments = null;
return newTypeSig;
}
CustomAttribute Read(ICustomAttributeType ctor)
{
var methodSig = ctor == null ? null : ((IMethodDefOrRef)ctor).MethodSig;
if (methodSig == null)
throw new CABlobParserException("ctor is null or not a method");
var mrCtor = ctor as MemberRef;
if (mrCtor != null) {
var owner = mrCtor.Class as TypeSpec;
if (owner != null) {
var gis = owner.TypeSig as GenericInstSig;
if (gis != null) {
genericArguments = new GenericArguments();
genericArguments.PushTypeArgs(gis.GenericArguments);
}
}
}
bool isEmpty = methodSig.Params.Count == 0 && reader.Position == reader.Length;
if (!isEmpty && reader.ReadUInt16() != 1)
throw new CABlobParserException("Invalid CA blob prolog");
var ctorArgs = new List<CAArgument>(methodSig.Params.Count);
foreach (var arg in methodSig.Params.GetSafeEnumerable())
ctorArgs.Add(ReadFixedArg(FixTypeSig(arg)));
// Some tools don't write the next ushort if there are no named arguments.
int numNamedArgs = reader.Position == reader.Length ? 0 : reader.ReadUInt16();
var namedArgs = ReadNamedArguments(numNamedArgs);
// verifyReadAllBytes will be set when we guess the underlying type of an enum.
// To make sure we guessed right, verify that we read all bytes.
if (verifyReadAllBytes && reader.Position != reader.Length)
throw new CABlobParserException("Not all CA blob bytes were read");
return new CustomAttribute(ctor, ctorArgs, namedArgs);
}
CustomAttributeReader(ModuleDef module, IImageStream reader, ICustomAttributeType ctor) {
this.module = module;
this.reader = reader;
this.ownReader = false;
this.ctor = ctor;
this.genericArguments = null;
this.recursionCounter = new RecursionCounter();
this.verifyReadAllBytes = false;
}
/// <summary>
/// Initializes a new instance of the <see cref="GenericArgumentResolver"/> class.
/// </summary>
public GenericArgumentResolver()
{
genericArguments = new GenericArguments();
recursionCounter = new RecursionCounter();
}
private static MethodSig Resolve(MethodBaseSig method, TypeSig typeContext)
{
var args = new GenericArguments();
if (typeContext.IsGenericInstanceType)
args.PushTypeArgs(((GenericInstSig)typeContext).GenericArguments);
var retSig = new MethodSig(method.CallingConvention);
retSig.RetType = args.Resolve(method.RetType);
foreach (var param in method.Params)
retSig.Params.Add(args.Resolve(param));
return retSig;
}
private static TypeSig Resolve(TypeSig type, TypeSig typeContext)
{
var args = new GenericArguments();
if (typeContext.IsGenericInstanceType)
args.PushTypeArgs(((GenericInstSig)typeContext).GenericArguments);
return args.Resolve(type);
}
private static IEnumerable<TypeSig> BaseTypes(TypeSig type)
{
TypeDef typeDef = type.ToTypeDefOrRef().ResolveTypeDefThrow();
if (typeDef.BaseType == null)
yield break;
TypeSig baseType = type;
do {
var args = new GenericArguments();
if (baseType.IsGenericInstanceType)
args.PushTypeArgs(((GenericInstSig)baseType).GenericArguments);
baseType = args.Resolve(typeDef.BaseType.ToTypeSig());
yield return baseType;
typeDef = typeDef.BaseType.ResolveTypeDef();
} while (typeDef != null && typeDef.BaseType != null);
}
public static TypeSig SubstituteTypeArgs(TypeSig type, TypeSig typeContext = null, IMethod method = null)
{
var args = new GenericArguments();
if (typeContext is ArraySig || typeContext is SZArraySig) {
args.PushTypeArgs(new[] { typeContext.Next });
} else if (typeContext is GenericInstSig) {
args.PushTypeArgs(((GenericInstSig)typeContext).GenericArguments);
}
if (method is MethodSpec) {
args.PushMethodArgs(((MethodSpec)method).GenericInstMethodSig.GenericArguments);
}
return args.Resolve(type);
}
