| public static GetElementType ( System.TypeSpec t ) : System.TypeSpec | ||
| t | System.TypeSpec | |
| Résultat | System.TypeSpec | |
public void SymbolRelatedToPreviousError(Type type)
{
if (reporting_disabled > 0 || !printer.HasRelatedSymbolSupport)
{
return;
}
type = TypeManager.DropGenericTypeArguments(type);
if (TypeManager.IsGenericParameter(type))
{
TypeParameter tp = TypeManager.LookupTypeParameter(type);
if (tp != null)
{
SymbolRelatedToPreviousError(tp.Location, "");
return;
}
}
if (type is TypeBuilder)
{
DeclSpace temp_ds = TypeManager.LookupDeclSpace(type);
SymbolRelatedToPreviousError(temp_ds.Location, TypeManager.CSharpName(type));
}
else if (TypeManager.HasElementType(type))
{
SymbolRelatedToPreviousError(TypeManager.GetElementType(type));
}
else
{
SymbolRelatedToPreviousError(type.Assembly.Location, TypeManager.CSharpName(type));
}
}
//
// Imports SRE parameters
//
public static AParametersCollection Create(ParameterInfo [] pi, MethodBase method)
{
if (pi.Length == 0)
{
if (method != null && (method.CallingConvention & CallingConventions.VarArgs) != 0)
{
return(new ParametersCollection(new IParameterData [0], Type.EmptyTypes, method, false));
}
return(Parameters.EmptyReadOnlyParameters);
}
Type [] types = new Type [pi.Length];
IParameterData [] par = new IParameterData [pi.Length];
bool is_params = false;
for (int i = 0; i < types.Length; i++)
{
types [i] = TypeManager.TypeToCoreType(pi [i].ParameterType);
ParameterInfo p = pi [i];
Parameter.Modifier mod = 0;
if (types [i].IsByRef)
{
if ((p.Attributes & (ParameterAttributes.Out | ParameterAttributes.In)) == ParameterAttributes.Out)
{
mod = Parameter.Modifier.OUT;
}
else
{
mod = Parameter.Modifier.REF;
}
//
// Strip reference wrapping
//
types [i] = TypeManager.GetElementType(types [i]);
}
else if (i == 0 && TypeManager.extension_attribute_type != null && method != null && method.IsStatic &&
(method.DeclaringType.Attributes & Class.StaticClassAttribute) == Class.StaticClassAttribute &&
method.IsDefined(TypeManager.extension_attribute_type, false))
{
mod = Parameter.Modifier.This;
}
else if (i >= pi.Length - 2 && types [i].IsArray)
{
if (p.IsDefined(TypeManager.param_array_type, false))
{
mod = Parameter.Modifier.PARAMS;
is_params = true;
}
}
par [i] = new ParameterData(p.Name, mod);
}
return(method != null ?
new ParametersCollection(par, types, method, is_params) :
new ParametersCollection(par, types));
}
//
// Generic method parameters importer, param is shared between all instances
//
public static AParametersCollection Create(AParametersCollection param, MethodBase method)
{
if (param.IsEmpty)
{
return(param);
}
ParameterInfo [] pi = method.GetParameters();
Type [] types = new Type [pi.Length];
for (int i = 0; i < types.Length; i++)
{
Type t = pi [i].ParameterType;
if (t.IsByRef)
{
t = TypeManager.GetElementType(t);
}
types [i] = TypeManager.TypeToCoreType(t);
}
return(new ParametersImported(param, types));
}
//
// Checks whether the type P is as accessible as this member
//
public bool IsAccessibleAs(TypeSpec p)
{
//
// if M is private, its accessibility is the same as this declspace.
// we already know that P is accessible to T before this method, so we
// may return true.
//
if ((mod_flags & Modifiers.PRIVATE) != 0)
{
return(true);
}
while (TypeManager.HasElementType(p))
{
p = TypeManager.GetElementType(p);
}
if (p.IsGenericParameter)
{
return(true);
}
for (TypeSpec p_parent; p != null; p = p_parent)
{
p_parent = p.DeclaringType;
if (p.IsGeneric)
{
foreach (TypeSpec t in p.TypeArguments)
{
if (!IsAccessibleAs(t))
{
return(false);
}
}
}
var pAccess = p.Modifiers & Modifiers.AccessibilityMask;
if (pAccess == Modifiers.PUBLIC)
{
continue;
}
bool same_access_restrictions = false;
for (MemberCore mc = this; !same_access_restrictions && mc != null && mc.Parent != null; mc = mc.Parent)
{
var al = mc.ModFlags & Modifiers.AccessibilityMask;
switch (pAccess)
{
case Modifiers.INTERNAL:
if (al == Modifiers.PRIVATE || al == Modifiers.INTERNAL)
{
same_access_restrictions = p.MemberDefinition.IsInternalAsPublic(mc.Module.DeclaringAssembly);
}
break;
case Modifiers.PROTECTED:
if (al == Modifiers.PROTECTED)
{
same_access_restrictions = mc.Parent.PartialContainer.IsBaseTypeDefinition(p_parent);
break;
}
if (al == Modifiers.PRIVATE)
{
//
// When type is private and any of its parents derives from
// protected type then the type is accessible
//
while (mc.Parent != null && mc.Parent.PartialContainer != null)
{
if (mc.Parent.PartialContainer.IsBaseTypeDefinition(p_parent))
{
same_access_restrictions = true;
}
mc = mc.Parent;
}
}
break;
case Modifiers.PROTECTED | Modifiers.INTERNAL:
if (al == Modifiers.INTERNAL)
{
same_access_restrictions = p.MemberDefinition.IsInternalAsPublic(mc.Module.DeclaringAssembly);
}
else if (al == (Modifiers.PROTECTED | Modifiers.INTERNAL))
{
same_access_restrictions = mc.Parent.PartialContainer.IsBaseTypeDefinition(p_parent) && p.MemberDefinition.IsInternalAsPublic(mc.Module.DeclaringAssembly);
}
else
{
goto case Modifiers.PROTECTED;
}
break;
case Modifiers.PRIVATE:
//
// Both are private and share same parent
//
if (al == Modifiers.PRIVATE)
{
var decl = mc.Parent;
do
{
same_access_restrictions = decl.CurrentType.MemberDefinition == p_parent.MemberDefinition;
} while (!same_access_restrictions && !decl.PartialContainer.IsTopLevel && (decl = decl.Parent) != null);
}
break;
default:
throw new InternalErrorException(al.ToString());
}
}
if (!same_access_restrictions)
{
return(false);
}
}
return(true);
}
//
// Imports SRE parameters
//
public static AParametersCollection Create(ParameterInfo [] pi, MethodBase method)
{
int varargs = method != null && (method.CallingConvention & CallingConventions.VarArgs) != 0 ? 1 : 0;
if (pi.Length == 0 && varargs == 0)
{
return(ParametersCompiled.EmptyReadOnlyParameters);
}
Type [] types = new Type [pi.Length + varargs];
IParameterData [] par = new IParameterData [pi.Length + varargs];
bool is_params = false;
PredefinedAttribute extension_attr = PredefinedAttributes.Get.Extension;
PredefinedAttribute param_attr = PredefinedAttributes.Get.ParamArray;
for (int i = 0; i < pi.Length; i++)
{
types [i] = TypeManager.TypeToCoreType(pi [i].ParameterType);
ParameterInfo p = pi [i];
Parameter.Modifier mod = 0;
Expression default_value = null;
if (types [i].IsByRef)
{
if ((p.Attributes & (ParameterAttributes.Out | ParameterAttributes.In)) == ParameterAttributes.Out)
{
mod = Parameter.Modifier.OUT;
}
else
{
mod = Parameter.Modifier.REF;
}
//
// Strip reference wrapping
//
types [i] = TypeManager.GetElementType(types [i]);
}
else if (i == 0 && extension_attr.IsDefined && method != null && method.IsStatic &&
(method.DeclaringType.Attributes & Class.StaticClassAttribute) == Class.StaticClassAttribute &&
method.IsDefined(extension_attr.Type, false))
{
mod = Parameter.Modifier.This;
}
else
{
if (i >= pi.Length - 2 && types[i].IsArray)
{
if (p.IsDefined(param_attr.Type, false))
{
mod = Parameter.Modifier.PARAMS;
is_params = true;
}
}
if (!is_params && p.IsOptional)
{
object value = p.DefaultValue;
if (value == Missing.Value)
{
default_value = EmptyExpression.Null;
}
else if (value == null)
{
default_value = new NullLiteral(Location.Null);
}
else
{
default_value = Constant.CreateConstant(value.GetType(), value, Location.Null);
}
}
}
par [i] = new ParameterData(p.Name, mod, default_value);
}
if (varargs != 0)
{
par [par.Length - 1] = new ArglistParameter(Location.Null);
types [types.Length - 1] = InternalType.Arglist;
}
return(method != null ?
new ParametersImported(par, types, varargs != 0, is_params) :
new ParametersImported(par, types));
}
