Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

external/linker/cecil/Mono.Cecil/FieldDefinition.cs

@@ -0,0 +1,267 @@
+//
+// Author:
+//   Jb Evain (jbevain@gmail.com)
+//
+// Copyright (c) 2008 - 2015 Jb Evain
+// Copyright (c) 2008 - 2011 Novell, Inc.
+//
+// Licensed under the MIT/X11 license.
+//
+
+using System;
+using Mono.Collections.Generic;
+
+namespace Mono.Cecil {
+
+	public sealed class FieldDefinition : FieldReference, IMemberDefinition, IConstantProvider, IMarshalInfoProvider {
+
+		ushort attributes;
+		Collection<CustomAttribute> custom_attributes;
+
+		int offset = Mixin.NotResolvedMarker;
+
+		internal int rva = Mixin.NotResolvedMarker;
+		byte [] initial_value;
+
+		object constant = Mixin.NotResolved;
+
+		MarshalInfo marshal_info;
+
+		void ResolveLayout ()
+		{
+			if (offset != Mixin.NotResolvedMarker)
+				return;
+
+			if (!HasImage) {
+				offset = Mixin.NoDataMarker;
+				return;
+			}
+
+			offset = Module.Read (this, (field, reader) => reader.ReadFieldLayout (field));
+		}
+
+		public bool HasLayoutInfo {
+			get {
+				if (offset >= 0)
+					return true;
+
+				ResolveLayout ();
+
+				return offset >= 0;
+			}
+		}
+
+		public int Offset {
+			get {
+				if (offset >= 0)
+					return offset;
+
+				ResolveLayout ();
+
+				return offset >= 0 ? offset : -1;
+			}
+			set { offset = value; }
+		}
+
+		internal new FieldDefinitionProjection WindowsRuntimeProjection {
+			get { return (FieldDefinitionProjection) projection; }
+			set { projection = value; }
+		}
+
+		void ResolveRVA ()
+		{
+			if (rva != Mixin.NotResolvedMarker)
+				return;
+
+			if (!HasImage)
+				return;
+
+			rva = Module.Read (this, (field, reader) => reader.ReadFieldRVA (field));
+		}
+
+		public int RVA {
+			get {
+				if (rva > 0)
+					return rva;
+
+				ResolveRVA ();
+
+				return rva > 0 ? rva : 0;
+			}
+		}
+
+		public byte [] InitialValue {
+			get {
+				if (initial_value != null)
+					return initial_value;
+
+				ResolveRVA ();
+
+				if (initial_value == null)
+					initial_value = Empty<byte>.Array;
+
+				return initial_value;
+			}
+			set {
+				initial_value = value;
+				rva = 0;
+			}
+		}
+
+		public FieldAttributes Attributes {
+			get { return (FieldAttributes) attributes; }
+			set {
+				if (IsWindowsRuntimeProjection && (ushort) value != attributes)
+					throw new InvalidOperationException ();
+
+				attributes = (ushort) value;
+			}
+		}
+
+		public bool HasConstant {
+			get {
+				this.ResolveConstant (ref constant, Module);
+
+				return constant != Mixin.NoValue;
+			}
+			set { if (!value) constant = Mixin.NoValue; }
+		}
+
+		public object Constant {
+			get { return HasConstant ? constant : null;	}
+			set { constant = value; }
+		}
+
+		public bool HasCustomAttributes {
+			get {
+				if (custom_attributes != null)
+					return custom_attributes.Count > 0;
+
+				return this.GetHasCustomAttributes (Module);
+			}
+		}
+
+		public Collection<CustomAttribute> CustomAttributes {
+			get { return custom_attributes ?? (this.GetCustomAttributes (ref custom_attributes, Module)); }
+		}
+
+		public bool HasMarshalInfo {
+			get {
+				if (marshal_info != null)
+					return true;
+
+				return this.GetHasMarshalInfo (Module);
+			}
+		}
+
+		public MarshalInfo MarshalInfo {
+			get { return marshal_info ?? (this.GetMarshalInfo (ref marshal_info, Module)); }
+			set { marshal_info = value; }
+		}
+
+		#region FieldAttributes
+
+		public bool IsCompilerControlled {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.CompilerControlled); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.CompilerControlled, value); }
+		}
+
+		public bool IsPrivate {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Private); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Private, value); }
+		}
+
+		public bool IsFamilyAndAssembly {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.FamANDAssem); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.FamANDAssem, value); }
+		}
+
+		public bool IsAssembly {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Assembly); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Assembly, value); }
+		}
+
+		public bool IsFamily {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Family); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Family, value); }
+		}
+
+		public bool IsFamilyOrAssembly {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.FamORAssem); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.FamORAssem, value); }
+		}
+
+		public bool IsPublic {
+			get { return attributes.GetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Public); }
+			set { attributes = attributes.SetMaskedAttributes ((ushort) FieldAttributes.FieldAccessMask, (ushort) FieldAttributes.Public, value); }
+		}
+
+		public bool IsStatic {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.Static); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.Static, value); }
+		}
+
+		public bool IsInitOnly {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.InitOnly); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.InitOnly, value); }
+		}
+
+		public bool IsLiteral {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.Literal); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.Literal, value); }
+		}
+
+		public bool IsNotSerialized {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.NotSerialized); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.NotSerialized, value); }
+		}
+
+		public bool IsSpecialName {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.SpecialName); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.SpecialName, value); }
+		}
+
+		public bool IsPInvokeImpl {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.PInvokeImpl); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.PInvokeImpl, value); }
+		}
+
+		public bool IsRuntimeSpecialName {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.RTSpecialName); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.RTSpecialName, value); }
+		}
+
+		public bool HasDefault {
+			get { return attributes.GetAttributes ((ushort) FieldAttributes.HasDefault); }
+			set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.HasDefault, value); }
+		}
+
+		#endregion
+
+		public override bool IsDefinition {
+			get { return true; }
+		}
+
+		public new TypeDefinition DeclaringType {
+			get { return (TypeDefinition) base.DeclaringType; }
+			set { base.DeclaringType = value; }
+		}
+
+		public FieldDefinition (string name, FieldAttributes attributes, TypeReference fieldType)
+			: base (name, fieldType)
+		{
+			this.attributes = (ushort) attributes;
+		}
+
+		public override FieldDefinition Resolve ()
+		{
+			return this;
+		}
+	}
+
+	static partial class Mixin {
+
+		public const int NotResolvedMarker = -2;
+		public const int NoDataMarker = -1;
+	}
+}