105 lines
3.0 KiB
C#
105 lines
3.0 KiB
C#
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace System.Reflection
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{
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partial class FieldInfo
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{
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private static extern FieldInfo internal_from_handle_type (IntPtr field_handle, IntPtr type_handle);
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public static FieldInfo GetFieldFromHandle (RuntimeFieldHandle handle)
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{
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if (handle.IsNullHandle ())
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throw new ArgumentException (SR.Argument_InvalidHandle);
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return internal_from_handle_type (handle.Value, IntPtr.Zero);
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}
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public static FieldInfo GetFieldFromHandle (RuntimeFieldHandle handle, RuntimeTypeHandle declaringType)
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{
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if (handle.IsNullHandle ())
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throw new ArgumentException (SR.Argument_InvalidHandle);
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FieldInfo fi = internal_from_handle_type (handle.Value, declaringType.Value);
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if (fi == null)
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throw new ArgumentException ("The field handle and the type handle are incompatible.");
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return fi;
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}
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internal virtual int GetFieldOffset ()
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{
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throw NotImplemented.ByDesign;
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private extern MarshalAsAttribute get_marshal_info ();
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internal object[] GetPseudoCustomAttributes ()
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{
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int count = 0;
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if (IsNotSerialized)
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count ++;
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if (DeclaringType.IsExplicitLayout)
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count ++;
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MarshalAsAttribute marshalAs = get_marshal_info ();
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if (marshalAs != null)
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count ++;
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if (count == 0)
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return null;
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object[] attrs = new object [count];
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count = 0;
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if (IsNotSerialized)
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attrs [count ++] = new NonSerializedAttribute ();
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if (DeclaringType.IsExplicitLayout)
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attrs [count ++] = new FieldOffsetAttribute (GetFieldOffset ());
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if (marshalAs != null)
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attrs [count ++] = marshalAs;
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return attrs;
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}
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internal CustomAttributeData[] GetPseudoCustomAttributesData ()
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{
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int count = 0;
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if (IsNotSerialized)
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count++;
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if (DeclaringType.IsExplicitLayout)
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count++;
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MarshalAsAttribute marshalAs = get_marshal_info ();
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if (marshalAs != null)
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count++;
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if (count == 0)
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return null;
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CustomAttributeData[] attrsData = new CustomAttributeData [count];
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count = 0;
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if (IsNotSerialized)
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attrsData [count++] = new CustomAttributeData ((typeof (NonSerializedAttribute)).GetConstructor (Type.EmptyTypes));
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if (DeclaringType.IsExplicitLayout) {
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var ctorArgs = new CustomAttributeTypedArgument[] { new CustomAttributeTypedArgument (typeof (int), GetFieldOffset ()) };
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attrsData [count++] = new CustomAttributeData (
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(typeof (FieldOffsetAttribute)).GetConstructor (new[] { typeof (int) }),
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ctorArgs,
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Array.Empty<CustomAttributeNamedArgument> ());
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}
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if (marshalAs != null) {
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var ctorArgs = new CustomAttributeTypedArgument[] { new CustomAttributeTypedArgument (typeof (UnmanagedType), marshalAs.Value) };
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attrsData [count++] = new CustomAttributeData (
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(typeof (MarshalAsAttribute)).GetConstructor (new[] { typeof (UnmanagedType) }),
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ctorArgs,
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Array.Empty<CustomAttributeNamedArgument> ());//FIXME Get named params
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}
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return attrsData;
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}
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}
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}
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