using System;
using System.Reflection;
using System.Reflection.Emit;

namespace System.Linq.Expressions
{
	/// <summary>Provides the base class from which the classes that represent bindings that are used to initialize members of a newly created object derive.</summary>
	// Token: 0x02000025 RID: 37
	public abstract class MemberBinding
	{
		/// <summary>Initializes a new instance of the <see cref="T:System.Linq.Expressions.MemberBinding" /> class.</summary>
		/// <param name="type">The <see cref="T:System.Linq.Expressions.MemberBindingType" /> that discriminates the type of binding that is represented.</param>
		/// <param name="member">The <see cref="T:System.Reflection.MemberInfo" /> that represents a field or property to be initialized.</param>
		// Token: 0x0600021B RID: 539 RVA: 0x0000B960 File Offset: 0x00009B60
		protected MemberBinding(MemberBindingType binding_type, MemberInfo member)
		{
			this.binding_type = binding_type;
			this.member = member;
		}

		/// <summary>Gets the type of binding that is represented.</summary>
		/// <returns>One of the <see cref="T:System.Linq.Expressions.MemberBindingType" /> values.</returns>
		// Token: 0x17000024 RID: 36
		// (get) Token: 0x0600021C RID: 540 RVA: 0x0000B978 File Offset: 0x00009B78
		public MemberBindingType BindingType
		{
			get
			{
				return this.binding_type;
			}
		}

		/// <summary>Gets the field or property to be initialized.</summary>
		/// <returns>The <see cref="T:System.Reflection.MemberInfo" /> that represents the field or property to be initialized.</returns>
		// Token: 0x17000025 RID: 37
		// (get) Token: 0x0600021D RID: 541 RVA: 0x0000B980 File Offset: 0x00009B80
		public MemberInfo Member
		{
			get
			{
				return this.member;
			}
		}

		/// <summary>Returns a textual representation of the <see cref="T:System.Linq.Expressions.MemberBinding" />.</summary>
		/// <returns>A textual representation of the <see cref="T:System.Linq.Expressions.MemberBinding" />.</returns>
		// Token: 0x0600021E RID: 542 RVA: 0x0000B988 File Offset: 0x00009B88
		public override string ToString()
		{
			return ExpressionPrinter.ToString(this);
		}

		// Token: 0x0600021F RID: 543
		internal abstract void Emit(EmitContext ec, LocalBuilder local);

		// Token: 0x06000220 RID: 544 RVA: 0x0000B990 File Offset: 0x00009B90
		internal LocalBuilder EmitLoadMember(EmitContext ec, LocalBuilder local)
		{
			ec.EmitLoadSubject(local);
			return this.member.OnFieldOrProperty((FieldInfo field) => this.EmitLoadField(ec, field), (PropertyInfo prop) => this.EmitLoadProperty(ec, prop));
		}

		// Token: 0x06000221 RID: 545 RVA: 0x0000B9E0 File Offset: 0x00009BE0
		private LocalBuilder EmitLoadProperty(EmitContext ec, PropertyInfo property)
		{
			MethodInfo getMethod = property.GetGetMethod(true);
			if (getMethod == null)
			{
				throw new NotSupportedException();
			}
			LocalBuilder localBuilder = ec.ig.DeclareLocal(property.PropertyType);
			ec.EmitCall(getMethod);
			ec.ig.Emit(OpCodes.Stloc, localBuilder);
			return localBuilder;
		}

		// Token: 0x06000222 RID: 546 RVA: 0x0000BA2C File Offset: 0x00009C2C
		private LocalBuilder EmitLoadField(EmitContext ec, FieldInfo field)
		{
			LocalBuilder localBuilder = ec.ig.DeclareLocal(field.FieldType);
			ec.ig.Emit(OpCodes.Ldfld, field);
			ec.ig.Emit(OpCodes.Stloc, localBuilder);
			return localBuilder;
		}

		// Token: 0x040000AA RID: 170
		private MemberBindingType binding_type;

		// Token: 0x040000AB RID: 171
		private MemberInfo member;
	}
}