//
// This entry is targeted by the ILTransformer to implement Type.GetType()'s ability to detect the calling assembly and use it as
// a default assembly name.
//
public static Type GetType(String typeName, String callingAssemblyName, bool throwOnError, bool ignoreCase)
{
LowLevelListWithIList<String> defaultAssemblies = new LowLevelListWithIList<String>();
defaultAssemblies.Add(callingAssemblyName);
defaultAssemblies.AddRange(DefaultAssemblyNamesForGetType);
return ReflectionCoreExecution.ExecutionDomain.GetType(typeName, throwOnError, ignoreCase, defaultAssemblies);
}
//
// This entry is targeted by the ILTransformer to implement Type.GetType()'s ability to detect the calling assembly and use it as
// a default assembly name.
//
public static Type ExtensibleGetType(string typeName, string callingAssemblyName, Func<AssemblyName, Assembly> assemblyResolver, Func<Assembly, string, bool, Type> typeResolver, bool throwOnError, bool ignoreCase)
{
LowLevelListWithIList<String> defaultAssemblies = new LowLevelListWithIList<String>();
defaultAssemblies.Add(callingAssemblyName);
defaultAssemblies.AddRange(DefaultAssemblyNamesForGetType);
return ReflectionCoreExecution.ExecutionDomain.GetType(typeName, assemblyResolver, typeResolver, throwOnError, ignoreCase, defaultAssemblies);
}
/// <summary>
/// Convert each Oid's value to an ASCII string, then create an unmanaged array of "numOids" LPSTR pointers, one for each Oid.
/// "numOids" is the number of LPSTR pointers. This is normally the same as oids.Count, except in the case where a malicious caller
/// appends to the OidCollection while this method is in progress. In such a case, this method guarantees only that this won't create
/// an unmanaged buffer overflow condition.
/// </summary>
public static SafeHandle ToLpstrArray(this OidCollection oids, out int numOids)
{
if (oids == null || oids.Count == 0)
{
numOids = 0;
return SafeLocalAllocHandle.InvalidHandle;
}
// Copy the oid strings to a local list to prevent a security race condition where
// the OidCollection or individual oids can be modified by another thread and
// potentially cause a buffer overflow
LowLevelListWithIList<byte[]> oidStrings = new LowLevelListWithIList<byte[]>();
foreach (Oid oid in oids)
{
byte[] oidString = oid.ValueAsAscii();
oidStrings.Add(oidString);
}
numOids = oidStrings.Count;
unsafe
{
int allocationSize = checked(numOids * sizeof(void*));
foreach (byte[] oidString in oidStrings)
{
checked
{
allocationSize += oidString.Length + 1;
}
}
SafeLocalAllocHandle safeLocalAllocHandle = SafeLocalAllocHandle.Create(allocationSize);
byte** pOidPointers = (byte**)(safeLocalAllocHandle.DangerousGetHandle());
byte* pOidContents = (byte*)(pOidPointers + numOids);
for (int i = 0; i < numOids; i++)
{
pOidPointers[i] = pOidContents;
byte[] oidString = oidStrings[i];
Marshal.Copy(oidString, 0, new IntPtr(pOidContents), oidString.Length);
pOidContents[oidString.Length] = 0;
pOidContents += oidString.Length + 1;
}
return safeLocalAllocHandle;
}
}
//
// Foo or Foo+Inner or Foo[String] or Foo+Inner[String]
//
private NonQualifiedTypeName ParseNamedOrConstructedGenericTypeName()
{
NamedTypeName namedType = ParseNamedTypeName();
// Because "[" is used both for generic arguments and array indexes, we must peek two characters deep.
if (!(_lexer.Peek == TokenType.OpenSqBracket && (_lexer.PeekSecond == TokenType.Other || _lexer.PeekSecond == TokenType.OpenSqBracket)))
return namedType;
else
{
_lexer.Skip();
LowLevelListWithIList<TypeName> genericTypeArguments = new LowLevelListWithIList<TypeName>();
for (;;)
{
TypeName genericTypeArgument = ParseGenericTypeArgument();
genericTypeArguments.Add(genericTypeArgument);
TokenType token = _lexer.GetNextToken();
if (token == TokenType.CloseSqBracket)
break;
if (token != TokenType.Comma)
throw new ArgumentException();
}
return new ConstructedGenericTypeName(namedType, genericTypeArguments);
}
}
//
// If throwIfMissingMetadata is false, returns null rather than throwing a MissingMetadataException.
//
internal sealed override IList<CustomAttributeTypedArgument> GetConstructorArguments(bool throwIfMissingMetadata)
{
int index = 0;
LowLevelList<Handle> lazyCtorTypeHandles = null;
LowLevelListWithIList<CustomAttributeTypedArgument> customAttributeTypedArguments = new LowLevelListWithIList<CustomAttributeTypedArgument>();
foreach (FixedArgumentHandle fixedArgumentHandle in _customAttribute.FixedArguments)
{
CustomAttributeTypedArgument customAttributeTypedArgument =
ParseFixedArgument(
_reader,
fixedArgumentHandle,
throwIfMissingMetadata,
delegate ()
{
// If we got here, the custom attribute blob lacked type information (this is actually the typical case.) We must fallback to
// parsing the constructor's signature to get the type info.
if (lazyCtorTypeHandles == null)
{
IEnumerable<ParameterTypeSignatureHandle> parameterTypeSignatureHandles;
HandleType handleType = _customAttribute.Constructor.HandleType;
switch (handleType)
{
case HandleType.QualifiedMethod:
parameterTypeSignatureHandles = _customAttribute.Constructor.ToQualifiedMethodHandle(_reader).GetQualifiedMethod(_reader).Method.GetMethod(_reader).Signature.GetMethodSignature(_reader).Parameters;
break;
case HandleType.MemberReference:
parameterTypeSignatureHandles = _customAttribute.Constructor.ToMemberReferenceHandle(_reader).GetMemberReference(_reader).Signature.ToMethodSignatureHandle(_reader).GetMethodSignature(_reader).Parameters;
break;
default:
throw new BadImageFormatException();
}
LowLevelList<Handle> ctorTypeHandles = new LowLevelList<Handle>();
foreach (ParameterTypeSignatureHandle parameterTypeSignatureHandle in parameterTypeSignatureHandles)
{
ctorTypeHandles.Add(parameterTypeSignatureHandle.GetParameterTypeSignature(_reader).Type);
}
lazyCtorTypeHandles = ctorTypeHandles;
}
Handle typeHandle = lazyCtorTypeHandles[index];
Exception exception = null;
RuntimeType argumentType = _reflectionDomain.TryResolve(_reader, typeHandle, new TypeContext(null, null), ref exception);
if (argumentType == null)
{
if (throwIfMissingMetadata)
throw exception;
return null;
}
return argumentType;
}
);
if (customAttributeTypedArgument.ArgumentType == null)
{
Debug.Assert(!throwIfMissingMetadata);
return null;
}
customAttributeTypedArguments.Add(customAttributeTypedArgument);
index++;
}
return customAttributeTypedArguments;
}
//
// Wrap a custom attribute argument (or an element of an array-typed custom attribute argument) in a CustomAttributeTypeArgument structure
// for insertion into a CustomAttributeData value.
//
private CustomAttributeTypedArgument WrapInCustomAttributeTypedArgument(Object value, Type argumentType)
{
// To support reflection domains other than the execution domain, we'll have to translate argumentType to one of the values off
// _reflectionDomain.FoundationTypes rather than using the direct value of value.GetType(). It's unclear how to do this for
// enum types. Cross that bridge if ever get to it.
Debug.Assert(_reflectionDomain is ExecutionDomain);
if (argumentType.Equals(typeof(Object)))
{
// If the declared attribute type is System.Object, we must report the type based on the runtime value.
if (value == null)
argumentType = typeof(String); // Why is null reported as System.String? Because that's what the desktop CLR does.
else if (value is Type)
argumentType = typeof(Type); // value.GetType() will not actually be System.Type - rather it will be some internal implementation type. We only want to report it as System.Type.
else
argumentType = value.GetType();
}
Array arrayValue = value as Array;
if (arrayValue != null)
{
if (!argumentType.IsArray)
throw new BadImageFormatException();
Type reportedElementType = argumentType.GetElementType();
LowLevelListWithIList<CustomAttributeTypedArgument> elementTypedArguments = new LowLevelListWithIList<CustomAttributeTypedArgument>();
foreach (Object elementValue in arrayValue)
{
CustomAttributeTypedArgument elementTypedArgument = WrapInCustomAttributeTypedArgument(elementValue, reportedElementType);
elementTypedArguments.Add(elementTypedArgument);
}
return ExtensibleCustomAttributeData.CreateCustomAttributeTypedArgument(argumentType, new ReadOnlyCollection<CustomAttributeTypedArgument>(elementTypedArguments));
}
else
{
return ExtensibleCustomAttributeData.CreateCustomAttributeTypedArgument(argumentType, value);
}
}
//
// If throwIfMissingMetadata is false, returns null rather than throwing a MissingMetadataException.
//
internal sealed override IList<CustomAttributeNamedArgument> GetNamedArguments(bool throwIfMissingMetadata)
{
LowLevelListWithIList<CustomAttributeNamedArgument> customAttributeNamedArguments = new LowLevelListWithIList<CustomAttributeNamedArgument>();
foreach (NamedArgumentHandle namedArgumentHandle in _customAttribute.NamedArguments)
{
NamedArgument namedArgument = namedArgumentHandle.GetNamedArgument(_reader);
String memberName = namedArgument.Name.GetString(_reader);
bool isField = (namedArgument.Flags == NamedArgumentMemberKind.Field);
CustomAttributeTypedArgument typedValue =
ParseFixedArgument(
_reader,
namedArgument.Value,
throwIfMissingMetadata,
delegate ()
{
// We got here because the custom attribute blob did not inclue type information. For named arguments, this is considered illegal metadata
// (ECMA always includes type info for named arguments.)
throw new BadImageFormatException();
}
);
if (typedValue.ArgumentType == null)
{
Debug.Assert(!throwIfMissingMetadata);
return null;
}
customAttributeNamedArguments.Add(ExtensibleCustomAttributeData.CreateCustomAttributeNamedArgument(this.AttributeType, memberName, isField, typedValue));
}
return customAttributeNamedArguments;
}
//
// Wrap a custom attribute argument (or an element of an array-typed custom attribute argument) in a CustomAttributeTypeArgument structure
// for insertion into a CustomAttributeData value.
//
private CustomAttributeTypedArgument WrapInCustomAttributeTypedArgument(Object value, Type argumentType)
{
if (argumentType.Equals(typeof(Object)))
{
// If the declared attribute type is System.Object, we must report the type based on the runtime value.
if (value == null)
argumentType = typeof(String); // Why is null reported as System.String? Because that's what the desktop CLR does.
else if (value is Type)
argumentType = typeof(Type); // value.GetType() will not actually be System.Type - rather it will be some internal implementation type. We only want to report it as System.Type.
else
argumentType = value.GetType();
}
// Handle the array case
IEnumerable enumerableValue = value as IEnumerable;
if (enumerableValue != null && !(value is String))
{
if (!argumentType.IsArray)
throw new BadImageFormatException();
Type reportedElementType = argumentType.GetElementType();
LowLevelListWithIList<CustomAttributeTypedArgument> elementTypedArguments = new LowLevelListWithIList<CustomAttributeTypedArgument>();
foreach (Object elementValue in enumerableValue)
{
CustomAttributeTypedArgument elementTypedArgument = WrapInCustomAttributeTypedArgument(elementValue, reportedElementType);
elementTypedArguments.Add(elementTypedArgument);
}
return new CustomAttributeTypedArgument(argumentType, new ReadOnlyCollection<CustomAttributeTypedArgument>(elementTypedArguments));
}
else
{
return new CustomAttributeTypedArgument(argumentType, value);
}
}
/// <summary>
/// Flattens an <see cref="AggregateException"/> instances into a single, new instance.
/// </summary>
/// <returns>A new, flattened <see cref="AggregateException"/>.</returns>
/// <remarks>
/// If any inner exceptions are themselves instances of
/// <see cref="AggregateException"/>, this method will recursively flatten all of them. The
/// inner exceptions returned in the new <see cref="AggregateException"/>
/// will be the union of all of the the inner exceptions from exception tree rooted at the provided
/// <see cref="AggregateException"/> instance.
/// </remarks>
public AggregateException Flatten()
{
// Initialize a collection to contain the flattened exceptions.
LowLevelListWithIList<Exception> flattenedExceptions = new LowLevelListWithIList<Exception>();
// Create a list to remember all aggregates to be flattened, this will be accessed like a FIFO queue
LowLevelList<AggregateException> exceptionsToFlatten = new LowLevelList<AggregateException>();
exceptionsToFlatten.Add(this);
int nDequeueIndex = 0;
// Continue removing and recursively flattening exceptions, until there are no more.
while (exceptionsToFlatten.Count > nDequeueIndex)
{
// dequeue one from exceptionsToFlatten
IList<Exception> currentInnerExceptions = exceptionsToFlatten[nDequeueIndex++].InnerExceptions;
for (int i = 0; i < currentInnerExceptions.Count; i++)
{
Exception currentInnerException = currentInnerExceptions[i];
if (currentInnerException == null)
{
continue;
}
AggregateException currentInnerAsAggregate = currentInnerException as AggregateException;
// If this exception is an aggregate, keep it around for later. Otherwise,
// simply add it to the list of flattened exceptions to be returned.
if (currentInnerAsAggregate != null)
{
exceptionsToFlatten.Add(currentInnerAsAggregate);
}
else
{
flattenedExceptions.Add(currentInnerException);
}
}
}
return new AggregateException(Message, flattenedExceptions);
}
public override Object InvokeMember(
String name, BindingFlags bindingFlags, Binder binder, Object target,
Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams)
{
const BindingFlags MemberBindingMask = (BindingFlags)0x000000FF;
const BindingFlags InvocationMask = (BindingFlags)0x0000FF00;
const BindingFlags BinderGetSetProperty = BindingFlags.GetProperty | BindingFlags.SetProperty;
const BindingFlags BinderGetSetField = BindingFlags.GetField | BindingFlags.SetField;
const BindingFlags BinderNonFieldGetSet = (BindingFlags)0x00FFF300;
const BindingFlags BinderNonCreateInstance = BindingFlags.InvokeMethod | BinderGetSetField | BinderGetSetProperty;
if (IsGenericParameter)
throw new InvalidOperationException(SR.Arg_GenericParameter);
#region Preconditions
if ((bindingFlags & InvocationMask) == 0)
// "Must specify binding flags describing the invoke operation required."
throw new ArgumentException(SR.Arg_NoAccessSpec, nameof(bindingFlags));
// Provide a default binding mask if none is provided
if ((bindingFlags & MemberBindingMask) == 0)
{
bindingFlags |= BindingFlags.Instance | BindingFlags.Public;
if ((bindingFlags & BindingFlags.CreateInstance) == 0)
bindingFlags |= BindingFlags.Static;
}
// There must not be more named parameters than provided arguments
if (namedParams != null)
{
if (providedArgs != null)
{
if (namedParams.Length > providedArgs.Length)
// "Named parameter array can not be bigger than argument array."
throw new ArgumentException(SR.Arg_NamedParamTooBig, nameof(namedParams));
}
else
{
if (namedParams.Length != 0)
// "Named parameter array can not be bigger than argument array."
throw new ArgumentException(SR.Arg_NamedParamTooBig, nameof(namedParams));
}
}
#endregion
#region COM Interop
if (target != null && target.GetType().IsCOMObject)
throw new PlatformNotSupportedException(SR.Arg_PlatformNotSupportedInvokeMemberCom);
#endregion
#region Check that any named paramters are not null
if (namedParams != null && Array.IndexOf(namedParams, null) != -1)
// "Named parameter value must not be null."
throw new ArgumentException(SR.Arg_NamedParamNull, nameof(namedParams));
#endregion
int argCnt = (providedArgs != null) ? providedArgs.Length : 0;
#region Get a Binder
if (binder == null)
binder = DefaultBinder;
bool bDefaultBinder = (binder == DefaultBinder);
#endregion
#region Delegate to Activator.CreateInstance
if ((bindingFlags & BindingFlags.CreateInstance) != 0)
{
if ((bindingFlags & BindingFlags.CreateInstance) != 0 && (bindingFlags & BinderNonCreateInstance) != 0)
// "Can not specify both CreateInstance and another access type."
throw new ArgumentException(SR.Arg_CreatInstAccess, nameof(bindingFlags));
return Activator.CreateInstance(this, bindingFlags, binder, providedArgs, culture);
}
#endregion
// PutDispProperty and\or PutRefDispProperty ==> SetProperty.
if ((bindingFlags & (BindingFlags.PutDispProperty | BindingFlags.PutRefDispProperty)) != 0)
bindingFlags |= BindingFlags.SetProperty;
#region Name
if (name == null)
throw new ArgumentNullException(nameof(name));
if (name.Length == 0 || name.Equals(@"[DISPID=0]"))
{
name = GetDefaultMemberName();
if (name == null)
{
// in InvokeMember we always pretend there is a default member if none is provided and we make it ToString
name = "ToString";
}
}
#endregion
#region GetField or SetField
bool IsGetField = (bindingFlags & BindingFlags.GetField) != 0;
bool IsSetField = (bindingFlags & BindingFlags.SetField) != 0;
if (IsGetField || IsSetField)
{
#region Preconditions
if (IsGetField)
{
if (IsSetField)
// "Can not specify both Get and Set on a field."
throw new ArgumentException(SR.Arg_FldSetGet, nameof(bindingFlags));
if ((bindingFlags & BindingFlags.SetProperty) != 0)
// "Can not specify both GetField and SetProperty."
throw new ArgumentException(SR.Arg_FldGetPropSet, nameof(bindingFlags));
}
else
{
Debug.Assert(IsSetField);
if (providedArgs == null)
throw new ArgumentNullException(nameof(providedArgs));
if ((bindingFlags & BindingFlags.GetProperty) != 0)
// "Can not specify both SetField and GetProperty."
throw new ArgumentException(SR.Arg_FldSetPropGet, nameof(bindingFlags));
if ((bindingFlags & BindingFlags.InvokeMethod) != 0)
// "Can not specify Set on a Field and Invoke on a method."
throw new ArgumentException(SR.Arg_FldSetInvoke, nameof(bindingFlags));
}
#endregion
#region Lookup Field
FieldInfo selFld = null;
FieldInfo[] flds = GetMember(name, MemberTypes.Field, bindingFlags) as FieldInfo[];
Debug.Assert(flds != null);
if (flds.Length == 1)
{
selFld = flds[0];
}
else if (flds.Length > 0)
{
selFld = binder.BindToField(bindingFlags, flds, IsGetField ? Empty.Value : providedArgs[0], culture);
}
#endregion
if (selFld != null)
{
#region Invocation on a field
if (selFld.FieldType.IsArray || Object.ReferenceEquals(selFld.FieldType, CommonRuntimeTypes.Array))
{
#region Invocation of an array Field
int idxCnt;
if ((bindingFlags & BindingFlags.GetField) != 0)
{
idxCnt = argCnt;
}
else
{
idxCnt = argCnt - 1;
}
if (idxCnt > 0)
{
// Verify that all of the index values are ints
int[] idx = new int[idxCnt];
for (int i = 0; i < idxCnt; i++)
{
try
{
idx[i] = ((IConvertible)providedArgs[i]).ToInt32(null);
}
catch (InvalidCastException)
{
throw new ArgumentException(SR.Arg_IndexMustBeInt);
}
}
// Set or get the value...
Array a = (Array)selFld.GetValue(target);
// Set or get the value in the array
if ((bindingFlags & BindingFlags.GetField) != 0)
{
return a.GetValue(idx);
}
else
{
a.SetValue(providedArgs[idxCnt], idx);
return null;
}
}
#endregion
}
if (IsGetField)
{
#region Get the field value
if (argCnt != 0)
throw new ArgumentException(SR.Arg_FldGetArgErr, nameof(bindingFlags));
return selFld.GetValue(target);
#endregion
}
else
{
#region Set the field Value
if (argCnt != 1)
throw new ArgumentException(SR.Arg_FldSetArgErr, nameof(bindingFlags));
selFld.SetValue(target, providedArgs[0], bindingFlags, binder, culture);
return null;
#endregion
}
#endregion
}
if ((bindingFlags & BinderNonFieldGetSet) == 0)
throw new MissingFieldException(FullName, name);
}
#endregion
#region Property PreConditions
// @Legacy - This is RTM behavior
bool isGetProperty = (bindingFlags & BindingFlags.GetProperty) != 0;
bool isSetProperty = (bindingFlags & BindingFlags.SetProperty) != 0;
if (isGetProperty || isSetProperty)
{
#region Preconditions
if (isGetProperty)
{
Debug.Assert(!IsSetField);
if (isSetProperty)
throw new ArgumentException(SR.Arg_PropSetGet, nameof(bindingFlags));
}
else
{
Debug.Assert(isSetProperty);
Debug.Assert(!IsGetField);
if ((bindingFlags & BindingFlags.InvokeMethod) != 0)
throw new ArgumentException(SR.Arg_PropSetInvoke, nameof(bindingFlags));
}
#endregion
}
#endregion
MethodInfo[] finalists = null;
MethodInfo finalist = null;
#region BindingFlags.InvokeMethod
if ((bindingFlags & BindingFlags.InvokeMethod) != 0)
{
#region Lookup Methods
MethodInfo[] semiFinalists = GetMember(name, MemberTypes.Method, bindingFlags) as MethodInfo[];
LowLevelListWithIList<MethodInfo> results = null;
for (int i = 0; i < semiFinalists.Length; i++)
{
MethodInfo semiFinalist = semiFinalists[i];
Debug.Assert(semiFinalist != null);
if (!semiFinalist.QualifiesBasedOnParameterCount(bindingFlags, CallingConventions.Any, new Type[argCnt]))
continue;
if (finalist == null)
{
finalist = semiFinalist;
}
else
{
if (results == null)
{
results = new LowLevelListWithIList<MethodInfo>(semiFinalists.Length);
results.Add(finalist);
}
results.Add(semiFinalist);
}
}
if (results != null)
{
Debug.Assert(results.Count > 1);
finalists = new MethodInfo[results.Count];
results.CopyTo(finalists, 0);
}
#endregion
}
#endregion
Debug.Assert(finalists == null || finalist != null);
#region BindingFlags.GetProperty or BindingFlags.SetProperty
if (finalist == null && isGetProperty || isSetProperty)
{
#region Lookup Property
PropertyInfo[] semiFinalists = GetMember(name, MemberTypes.Property, bindingFlags) as PropertyInfo[];
LowLevelListWithIList<MethodInfo> results = null;
for (int i = 0; i < semiFinalists.Length; i++)
{
MethodInfo semiFinalist = null;
if (isSetProperty)
{
semiFinalist = semiFinalists[i].GetSetMethod(true);
}
else
{
semiFinalist = semiFinalists[i].GetGetMethod(true);
}
if (semiFinalist == null)
continue;
BindingFlags expectedBindingFlags = semiFinalist.IsPublic ? BindingFlags.Public : BindingFlags.NonPublic;
if ((bindingFlags & expectedBindingFlags) != expectedBindingFlags)
continue;
if (!semiFinalist.QualifiesBasedOnParameterCount(bindingFlags, CallingConventions.Any, new Type[argCnt]))
continue;
if (finalist == null)
{
finalist = semiFinalist;
}
else
{
if (results == null)
{
results = new LowLevelListWithIList<MethodInfo>(semiFinalists.Length);
results.Add(finalist);
}
results.Add(semiFinalist);
}
}
if (results != null)
{
Debug.Assert(results.Count > 1);
finalists = new MethodInfo[results.Count];
results.CopyTo(finalists, 0);
}
#endregion
}
#endregion
if (finalist != null)
{
#region Invoke
if (finalists == null &&
argCnt == 0 &&
finalist.GetParametersNoCopy().Length == 0 &&
(bindingFlags & BindingFlags.OptionalParamBinding) == 0)
{
//if (useCache && argCnt == props[0].GetParameters().Length)
// AddMethodToCache(name, bindingFlags, argCnt, providedArgs, props[0]);
return finalist.Invoke(target, bindingFlags, binder, providedArgs, culture);
}
if (finalists == null)
finalists = new MethodInfo[] { finalist };
if (providedArgs == null)
providedArgs = Array.Empty<object>();
Object state = null;
MethodBase invokeMethod = null;
try { invokeMethod = binder.BindToMethod(bindingFlags, finalists, ref providedArgs, modifiers, culture, namedParams, out state); }
catch (MissingMethodException) { }
if (invokeMethod == null)
throw new MissingMethodException(FullName, name);
//if (useCache && argCnt == invokeMethod.GetParameters().Length)
// AddMethodToCache(name, bindingFlags, argCnt, providedArgs, invokeMethod);
Object result = ((MethodInfo)invokeMethod).Invoke(target, bindingFlags, binder, providedArgs, culture);
if (state != null)
binder.ReorderArgumentArray(ref providedArgs, state);
return result;
#endregion
}
throw new MissingMethodException(FullName, name);
}
/// <summary>
/// This callback gets called whenever a module gets registered. It adds the metadata reader
/// for the new module to the available scopes. The lock in ExecutionEnvironmentImplementation ensures
/// that this function may never be called concurrently so that we can assume that two threads
/// never update the reader and scope list at the same time.
/// </summary>
/// <param name="moduleHandle">Module handle to register</param>
private void RegisterModule(IntPtr moduleHandle)
{
MetadataReader newReader = _executionEnvironment.GetMetadataReaderForModule(moduleHandle);
if (newReader == null)
{
return;
}
// Build new reader list
LowLevelListWithIList<MetadataReader> readers = new LowLevelListWithIList<MetadataReader>(_readers.Count + 1);
foreach (MetadataReader oldReader in _readers)
{
readers.Add(oldReader);
}
readers.Add(newReader);
LowLevelDictionaryWithIEnumerable<string, ScopeDefinitionGroup> scopeGroups = new LowLevelDictionaryWithIEnumerable<string, ScopeDefinitionGroup>();
foreach (KeyValuePair<string, ScopeDefinitionGroup> oldGroup in _scopeGroups)
{
scopeGroups.Add(oldGroup.Key, oldGroup.Value);
}
AddScopesFromReaderToGroups(scopeGroups, newReader);
// Update reader and scope list
_readers = readers;
_scopeGroups = scopeGroups;
}
public override Object InvokeMember(
String name, BindingFlags bindingFlags, Binder binder, Object target,
Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams)
{
const BindingFlags MemberBindingMask = (BindingFlags)0x000000FF;
const BindingFlags InvocationMask = (BindingFlags)0x0000FF00;
const BindingFlags BinderGetSetProperty = BindingFlags.GetProperty | BindingFlags.SetProperty;
const BindingFlags BinderGetSetField = BindingFlags.GetField | BindingFlags.SetField;
const BindingFlags BinderNonFieldGetSet = (BindingFlags)0x00FFF300;
const BindingFlags BinderNonCreateInstance = BindingFlags.InvokeMethod | BinderGetSetField | BinderGetSetProperty;
if (IsGenericParameter)
{
throw new InvalidOperationException(SR.Arg_GenericParameter);
}
#region Preconditions
if ((bindingFlags & InvocationMask) == 0)
{
// "Must specify binding flags describing the invoke operation required."
throw new ArgumentException(SR.Arg_NoAccessSpec, nameof(bindingFlags));
}
// Provide a default binding mask if none is provided
if ((bindingFlags & MemberBindingMask) == 0)
{
bindingFlags |= BindingFlags.Instance | BindingFlags.Public;
if ((bindingFlags & BindingFlags.CreateInstance) == 0)
{
bindingFlags |= BindingFlags.Static;
}
}
// There must not be more named parameters than provided arguments
if (namedParams != null)
{
if (providedArgs != null)
{
if (namedParams.Length > providedArgs.Length)
{
// "Named parameter array can not be bigger than argument array."
throw new ArgumentException(SR.Arg_NamedParamTooBig, nameof(namedParams));
}
}
else
{
if (namedParams.Length != 0)
{
// "Named parameter array can not be bigger than argument array."
throw new ArgumentException(SR.Arg_NamedParamTooBig, nameof(namedParams));
}
}
}
#endregion
#region COM Interop
if (target != null && target.GetType().IsCOMObject)
{
throw new PlatformNotSupportedException(SR.Arg_PlatformNotSupportedInvokeMemberCom);
}
#endregion
#region Check that any named paramters are not null
if (namedParams != null && Array.IndexOf(namedParams, null) != -1)
{
// "Named parameter value must not be null."
throw new ArgumentException(SR.Arg_NamedParamNull, nameof(namedParams));
}
#endregion
int argCnt = (providedArgs != null) ? providedArgs.Length : 0;
#region Get a Binder
if (binder == null)
{
binder = DefaultBinder;
}
bool bDefaultBinder = (binder == DefaultBinder);
#endregion
#region Delegate to Activator.CreateInstance
if ((bindingFlags & BindingFlags.CreateInstance) != 0)
{
if ((bindingFlags & BindingFlags.CreateInstance) != 0 && (bindingFlags & BinderNonCreateInstance) != 0)
{
// "Can not specify both CreateInstance and another access type."
throw new ArgumentException(SR.Arg_CreatInstAccess, nameof(bindingFlags));
}
return(Activator.CreateInstance(this, bindingFlags, binder, providedArgs, culture));
}
#endregion
// PutDispProperty and\or PutRefDispProperty ==> SetProperty.
if ((bindingFlags & (BindingFlags.PutDispProperty | BindingFlags.PutRefDispProperty)) != 0)
{
bindingFlags |= BindingFlags.SetProperty;
}
#region Name
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (name.Length == 0 || name.Equals(@"[DISPID=0]"))
{
name = GetDefaultMemberName();
if (name == null)
{
// in InvokeMember we always pretend there is a default member if none is provided and we make it ToString
name = "ToString";
}
}
#endregion
#region GetField or SetField
bool IsGetField = (bindingFlags & BindingFlags.GetField) != 0;
bool IsSetField = (bindingFlags & BindingFlags.SetField) != 0;
if (IsGetField || IsSetField)
{
#region Preconditions
if (IsGetField)
{
if (IsSetField)
{
// "Can not specify both Get and Set on a field."
throw new ArgumentException(SR.Arg_FldSetGet, nameof(bindingFlags));
}
if ((bindingFlags & BindingFlags.SetProperty) != 0)
{
// "Can not specify both GetField and SetProperty."
throw new ArgumentException(SR.Arg_FldGetPropSet, nameof(bindingFlags));
}
}
else
{
Debug.Assert(IsSetField);
if (providedArgs == null)
{
throw new ArgumentNullException(nameof(providedArgs));
}
if ((bindingFlags & BindingFlags.GetProperty) != 0)
{
// "Can not specify both SetField and GetProperty."
throw new ArgumentException(SR.Arg_FldSetPropGet, nameof(bindingFlags));
}
if ((bindingFlags & BindingFlags.InvokeMethod) != 0)
{
// "Can not specify Set on a Field and Invoke on a method."
throw new ArgumentException(SR.Arg_FldSetInvoke, nameof(bindingFlags));
}
}
#endregion
#region Lookup Field
FieldInfo selFld = null;
FieldInfo[] flds = GetMember(name, MemberTypes.Field, bindingFlags) as FieldInfo[];
Debug.Assert(flds != null);
if (flds.Length == 1)
{
selFld = flds[0];
}
else if (flds.Length > 0)
{
selFld = binder.BindToField(bindingFlags, flds, IsGetField ? Empty.Value : providedArgs[0], culture);
}
#endregion
if (selFld != null)
{
#region Invocation on a field
if (selFld.FieldType.IsArray || Object.ReferenceEquals(selFld.FieldType, typeof(System.Array)))
{
#region Invocation of an array Field
int idxCnt;
if ((bindingFlags & BindingFlags.GetField) != 0)
{
idxCnt = argCnt;
}
else
{
idxCnt = argCnt - 1;
}
if (idxCnt > 0)
{
// Verify that all of the index values are ints
int[] idx = new int[idxCnt];
for (int i = 0; i < idxCnt; i++)
{
try
{
idx[i] = ((IConvertible)providedArgs[i]).ToInt32(null);
}
catch (InvalidCastException)
{
throw new ArgumentException(SR.Arg_IndexMustBeInt);
}
}
// Set or get the value...
Array a = (Array)selFld.GetValue(target);
// Set or get the value in the array
if ((bindingFlags & BindingFlags.GetField) != 0)
{
return(a.GetValue(idx));
}
else
{
a.SetValue(providedArgs[idxCnt], idx);
return(null);
}
}
#endregion
}
if (IsGetField)
{
#region Get the field value
if (argCnt != 0)
{
throw new ArgumentException(SR.Arg_FldGetArgErr, nameof(bindingFlags));
}
return(selFld.GetValue(target));
#endregion
}
else
{
#region Set the field Value
if (argCnt != 1)
{
throw new ArgumentException(SR.Arg_FldSetArgErr, nameof(bindingFlags));
}
selFld.SetValue(target, providedArgs[0], bindingFlags, binder, culture);
return(null);
#endregion
}
#endregion
}
if ((bindingFlags & BinderNonFieldGetSet) == 0)
{
throw new MissingFieldException(FullName, name);
}
}
#endregion
#region Property PreConditions
// @Legacy - This is RTM behavior
bool isGetProperty = (bindingFlags & BindingFlags.GetProperty) != 0;
bool isSetProperty = (bindingFlags & BindingFlags.SetProperty) != 0;
if (isGetProperty || isSetProperty)
{
#region Preconditions
if (isGetProperty)
{
Debug.Assert(!IsSetField);
if (isSetProperty)
{
throw new ArgumentException(SR.Arg_PropSetGet, nameof(bindingFlags));
}
}
else
{
Debug.Assert(isSetProperty);
Debug.Assert(!IsGetField);
if ((bindingFlags & BindingFlags.InvokeMethod) != 0)
{
throw new ArgumentException(SR.Arg_PropSetInvoke, nameof(bindingFlags));
}
}
#endregion
}
#endregion
MethodInfo[] finalists = null;
MethodInfo finalist = null;
#region BindingFlags.InvokeMethod
if ((bindingFlags & BindingFlags.InvokeMethod) != 0)
{
#region Lookup Methods
MethodInfo[] semiFinalists = GetMember(name, MemberTypes.Method, bindingFlags) as MethodInfo[];
LowLevelListWithIList <MethodInfo> results = null;
for (int i = 0; i < semiFinalists.Length; i++)
{
MethodInfo semiFinalist = semiFinalists[i];
Debug.Assert(semiFinalist != null);
if (!semiFinalist.QualifiesBasedOnParameterCount(bindingFlags, CallingConventions.Any, new Type[argCnt]))
{
continue;
}
if (finalist == null)
{
finalist = semiFinalist;
}
else
{
if (results == null)
{
results = new LowLevelListWithIList <MethodInfo>(semiFinalists.Length);
results.Add(finalist);
}
results.Add(semiFinalist);
}
}
if (results != null)
{
Debug.Assert(results.Count > 1);
finalists = new MethodInfo[results.Count];
results.CopyTo(finalists, 0);
}
#endregion
}
#endregion
Debug.Assert(finalists == null || finalist != null);
#region BindingFlags.GetProperty or BindingFlags.SetProperty
if (finalist == null && isGetProperty || isSetProperty)
{
#region Lookup Property
PropertyInfo[] semiFinalists = GetMember(name, MemberTypes.Property, bindingFlags) as PropertyInfo[];
LowLevelListWithIList <MethodInfo> results = null;
for (int i = 0; i < semiFinalists.Length; i++)
{
MethodInfo semiFinalist = null;
if (isSetProperty)
{
semiFinalist = semiFinalists[i].GetSetMethod(true);
}
else
{
semiFinalist = semiFinalists[i].GetGetMethod(true);
}
if (semiFinalist == null)
{
continue;
}
BindingFlags expectedBindingFlags = semiFinalist.IsPublic ? BindingFlags.Public : BindingFlags.NonPublic;
if ((bindingFlags & expectedBindingFlags) != expectedBindingFlags)
{
continue;
}
if (!semiFinalist.QualifiesBasedOnParameterCount(bindingFlags, CallingConventions.Any, new Type[argCnt]))
{
continue;
}
if (finalist == null)
{
finalist = semiFinalist;
}
else
{
if (results == null)
{
results = new LowLevelListWithIList <MethodInfo>(semiFinalists.Length);
results.Add(finalist);
}
results.Add(semiFinalist);
}
}
if (results != null)
{
Debug.Assert(results.Count > 1);
finalists = new MethodInfo[results.Count];
results.CopyTo(finalists, 0);
}
#endregion
}
#endregion
if (finalist != null)
{
#region Invoke
if (finalists == null &&
argCnt == 0 &&
finalist.GetParametersNoCopy().Length == 0 &&
(bindingFlags & BindingFlags.OptionalParamBinding) == 0)
{
//if (useCache && argCnt == props[0].GetParameters().Length)
// AddMethodToCache(name, bindingFlags, argCnt, providedArgs, props[0]);
return(finalist.Invoke(target, bindingFlags, binder, providedArgs, culture));
}
if (finalists == null)
{
finalists = new MethodInfo[] { finalist }
}
;
if (providedArgs == null)
{
providedArgs = Array.Empty <object>();
}
Object state = null;
MethodBase invokeMethod = null;
try { invokeMethod = binder.BindToMethod(bindingFlags, finalists, ref providedArgs, modifiers, culture, namedParams, out state); }
catch (MissingMethodException) { }
if (invokeMethod == null)
{
throw new MissingMethodException(FullName, name);
}
//if (useCache && argCnt == invokeMethod.GetParameters().Length)
// AddMethodToCache(name, bindingFlags, argCnt, providedArgs, invokeMethod);
Object result = ((MethodInfo)invokeMethod).Invoke(target, bindingFlags, binder, providedArgs, culture);
if (state != null)
{
binder.ReorderArgumentArray(ref providedArgs, state);
}
return(result);
#endregion
}
throw new MissingMethodException(FullName, name);
}
}
//
// If throwIfMissingMetadata is false, returns null rather than throwing a MissingMetadataException.
//
internal sealed override IList <CustomAttributeTypedArgument> GetConstructorArguments(bool throwIfMissingMetadata)
{
int index = 0;
LowLevelList <Handle> lazyCtorTypeHandles = null;
LowLevelListWithIList <CustomAttributeTypedArgument> customAttributeTypedArguments = new LowLevelListWithIList <CustomAttributeTypedArgument>();
foreach (FixedArgumentHandle fixedArgumentHandle in _customAttribute.FixedArguments)
{
CustomAttributeTypedArgument customAttributeTypedArgument =
ParseFixedArgument(
_reader,
fixedArgumentHandle,
throwIfMissingMetadata,
delegate()
{
// If we got here, the custom attribute blob lacked type information (this is actually the typical case.) We must fallback to
// parsing the constructor's signature to get the type info.
if (lazyCtorTypeHandles == null)
{
IEnumerable <ParameterTypeSignatureHandle> parameterTypeSignatureHandles;
HandleType handleType = _customAttribute.Constructor.HandleType;
switch (handleType)
{
case HandleType.QualifiedMethod:
parameterTypeSignatureHandles = _customAttribute.Constructor.ToQualifiedMethodHandle(_reader).GetQualifiedMethod(_reader).Method.GetMethod(_reader).Signature.GetMethodSignature(_reader).Parameters;
break;
case HandleType.MemberReference:
parameterTypeSignatureHandles = _customAttribute.Constructor.ToMemberReferenceHandle(_reader).GetMemberReference(_reader).Signature.ToMethodSignatureHandle(_reader).GetMethodSignature(_reader).Parameters;
break;
default:
throw new BadImageFormatException();
}
LowLevelList <Handle> ctorTypeHandles = new LowLevelList <Handle>();
foreach (ParameterTypeSignatureHandle parameterTypeSignatureHandle in parameterTypeSignatureHandles)
{
ctorTypeHandles.Add(parameterTypeSignatureHandle.GetParameterTypeSignature(_reader).Type);
}
lazyCtorTypeHandles = ctorTypeHandles;
}
Handle typeHandle = lazyCtorTypeHandles[index];
Exception exception = null;
RuntimeType argumentType = _reflectionDomain.TryResolve(_reader, typeHandle, new TypeContext(null, null), ref exception);
if (argumentType == null)
{
if (throwIfMissingMetadata)
{
throw exception;
}
return(null);
}
return(argumentType);
}
);
if (customAttributeTypedArgument.ArgumentType == null)
{
Debug.Assert(!throwIfMissingMetadata);
return(null);
}
customAttributeTypedArguments.Add(customAttributeTypedArgument);
index++;
}
return(customAttributeTypedArguments);
}
//
// If throwIfMissingMetadata is false, returns null rather than throwing a missing metadata exception.
//
internal sealed override IList <CustomAttributeTypedArgument> GetConstructorArguments(bool throwIfMissingMetadata)
{
int index = 0;
HandleCollection parameterTypeSignatureHandles;
HandleType handleType = _customAttribute.Constructor.HandleType;
switch (handleType)
{
case HandleType.QualifiedMethod:
parameterTypeSignatureHandles = _customAttribute.Constructor.ToQualifiedMethodHandle(_reader).GetQualifiedMethod(_reader).Method.GetMethod(_reader).Signature.GetMethodSignature(_reader).Parameters;
break;
case HandleType.MemberReference:
parameterTypeSignatureHandles = _customAttribute.Constructor.ToMemberReferenceHandle(_reader).GetMemberReference(_reader).Signature.ToMethodSignatureHandle(_reader).GetMethodSignature(_reader).Parameters;
break;
default:
throw new BadImageFormatException();
}
Handle[] ctorTypeHandles = parameterTypeSignatureHandles.ToArray();
LowLevelListWithIList <CustomAttributeTypedArgument> customAttributeTypedArguments = new LowLevelListWithIList <CustomAttributeTypedArgument>();
foreach (Handle fixedArgumentHandle in _customAttribute.FixedArguments)
{
Handle typeHandle = ctorTypeHandles[index];
Exception? exception = null;
RuntimeTypeInfo?argumentType = typeHandle.TryResolve(_reader, new TypeContext(null, null), ref exception);
if (argumentType == null)
{
if (throwIfMissingMetadata)
{
throw exception !;
}
return(null);
}
Exception e = fixedArgumentHandle.TryParseConstantValue(_reader, out object?value);
CustomAttributeTypedArgument customAttributeTypedArgument;
if (e != null)
{
if (throwIfMissingMetadata)
{
throw e;
}
else
{
return(null);
}
}
else
{
customAttributeTypedArgument = WrapInCustomAttributeTypedArgument(value, argumentType);
}
customAttributeTypedArguments.Add(customAttributeTypedArgument);
index++;
}
return(customAttributeTypedArguments);
}