niko
109 lines
3.4 KiB
C#
109 lines
3.4 KiB
C#
using System;
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using System.Collections.ObjectModel;
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using System.Reflection;
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using System.Reflection.Emit;
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namespace System.Linq.Expressions
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{
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/// <summary>Represents a constructor call.</summary>
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// Token: 0x0200002D RID: 45
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public sealed class NewExpression : Expression
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{
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// Token: 0x06000241 RID: 577 RVA: 0x0000BEE8 File Offset: 0x0000A0E8
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internal NewExpression(Type type, ReadOnlyCollection<Expression> arguments)
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: base(ExpressionType.New, type)
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{
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this.arguments = arguments;
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}
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// Token: 0x06000242 RID: 578 RVA: 0x0000BEFC File Offset: 0x0000A0FC
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internal NewExpression(ConstructorInfo constructor, ReadOnlyCollection<Expression> arguments, ReadOnlyCollection<MemberInfo> members)
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: base(ExpressionType.New, constructor.DeclaringType)
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{
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this.constructor = constructor;
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this.arguments = arguments;
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this.members = members;
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}
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/// <summary>Gets the called constructor.</summary>
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/// <returns>The <see cref="T:System.Reflection.ConstructorInfo" /> that represents the called constructor.</returns>
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// Token: 0x17000030 RID: 48
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// (get) Token: 0x06000243 RID: 579 RVA: 0x0000BF24 File Offset: 0x0000A124
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public ConstructorInfo Constructor
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{
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get
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{
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return this.constructor;
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}
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}
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/// <summary>Gets the arguments to the constructor.</summary>
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/// <returns>A collection of <see cref="T:System.Linq.Expressions.Expression" /> objects that represent the arguments to the constructor.</returns>
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// Token: 0x17000031 RID: 49
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// (get) Token: 0x06000244 RID: 580 RVA: 0x0000BF2C File Offset: 0x0000A12C
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public ReadOnlyCollection<Expression> Arguments
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{
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get
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{
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return this.arguments;
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}
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}
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/// <summary>Gets the members that can retrieve the values of the fields that were initialized with constructor arguments.</summary>
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/// <returns>A collection of <see cref="T:System.Reflection.MemberInfo" /> objects that represent the members that can retrieve the values of the fields that were initialized with constructor arguments.</returns>
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// Token: 0x17000032 RID: 50
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// (get) Token: 0x06000245 RID: 581 RVA: 0x0000BF34 File Offset: 0x0000A134
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public ReadOnlyCollection<MemberInfo> Members
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{
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get
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{
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return this.members;
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}
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}
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// Token: 0x06000246 RID: 582 RVA: 0x0000BF3C File Offset: 0x0000A13C
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internal override void Emit(EmitContext ec)
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{
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ILGenerator ig = ec.ig;
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Type type = base.Type;
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LocalBuilder localBuilder = null;
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if (type.IsValueType)
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{
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localBuilder = ig.DeclareLocal(type);
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ig.Emit(OpCodes.Ldloca, localBuilder);
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if (this.constructor == null)
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{
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ig.Emit(OpCodes.Initobj, type);
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ig.Emit(OpCodes.Ldloc, localBuilder);
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return;
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}
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}
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ec.EmitCollection<Expression>(this.arguments);
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if (type.IsValueType)
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{
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ig.Emit(OpCodes.Call, this.constructor);
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ig.Emit(OpCodes.Ldloc, localBuilder);
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}
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else
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{
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ig.Emit(OpCodes.Newobj, this.constructor ?? NewExpression.GetDefaultConstructor(type));
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}
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}
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// Token: 0x06000247 RID: 583 RVA: 0x0000BFF4 File Offset: 0x0000A1F4
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private static ConstructorInfo GetDefaultConstructor(Type type)
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{
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return type.GetConstructor(Type.EmptyTypes);
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}
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// Token: 0x040000BA RID: 186
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private ConstructorInfo constructor;
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// Token: 0x040000BB RID: 187
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private ReadOnlyCollection<Expression> arguments;
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// Token: 0x040000BC RID: 188
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private ReadOnlyCollection<MemberInfo> members;
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}
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}
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