mono/mcs/class/System.Core/Documentation/en/System.Linq.Expressions/UnaryExpression.xml

<?xml version="1.0" encoding="utf-8"?>
<Type Name="UnaryExpression" FullName="System.Linq.Expressions.UnaryExpression">
  <TypeSignature Language="C#" Value="public sealed class UnaryExpression : System.Linq.Expressions.Expression" />
  <TypeSignature Language="ILAsm" Value=".class public auto ansi sealed beforefieldinit UnaryExpression extends System.Linq.Expressions.Expression" />
  <AssemblyInfo>
    <AssemblyName>System.Core</AssemblyName>
    <AssemblyVersion>3.5.0.0</AssemblyVersion>
    <AssemblyVersion>4.0.0.0</AssemblyVersion>
  </AssemblyInfo>
  <Base>
    <BaseTypeName>System.Linq.Expressions.Expression</BaseTypeName>
  </Base>
  <Interfaces />
  <Attributes>
    <Attribute>
      <AttributeName>System.Diagnostics.DebuggerTypeProxy(typeof(System.Linq.Expressions.Expression/UnaryExpressionProxy))</AttributeName>
    </Attribute>
  </Attributes>
  <Docs>
    <remarks>
      <attribution license="cc4" from="Microsoft" modified="false" />
      <para>The following table summarizes the factory methods that can be used to create a <see cref="T:System.Linq.Expressions.UnaryExpression" /> that has a specific node type.</para>
      <list type="table">
        <listheader>
          <item>
            <term>
              <para>
                <see cref="P:System.Linq.Expressions.Expression.NodeType" />
              </para>
            </term>
            <description>
              <para>Factory Method</para>
            </description>
          </item>
        </listheader>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.ArrayLength" />
            </para>
          </term>
          <description>
            <para>
              <see cref="M:System.Linq.Expressions.Expression.ArrayLength(System.Linq.Expressions.Expression)" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.Convert" />
            </para>
          </term>
          <description>
            <para>
              <see cref="Overload:System.Linq.Expressions.Expression.Convert" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.ConvertChecked" />
            </para>
          </term>
          <description>
            <para>
              <see cref="Overload:System.Linq.Expressions.Expression.ConvertChecked" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.Negate" />
            </para>
          </term>
          <description>
            <para>
              <see cref="Overload:System.Linq.Expressions.Expression.Negate" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.NegateChecked" />
            </para>
          </term>
          <description>
            <para>
              <see cref="Overload:System.Linq.Expressions.Expression.NegateChecked" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.Not" />
            </para>
          </term>
          <description>
            <para>
              <see cref="Overload:System.Linq.Expressions.Expression.Not" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.Quote" />
            </para>
          </term>
          <description>
            <para>
              <see cref="M:System.Linq.Expressions.Expression.Quote(System.Linq.Expressions.Expression)" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.TypeAs" />
            </para>
          </term>
          <description>
            <para>
              <see cref="M:System.Linq.Expressions.Expression.TypeAs(System.Linq.Expressions.Expression,System.Type)" />
            </para>
          </description>
        </item>
        <item>
          <term>
            <para>
              <see cref="F:System.Linq.Expressions.ExpressionType.UnaryPlus" />
            </para>
          </term>
          <description>
            <para>
              <see cref="Overload:System.Linq.Expressions.Expression.UnaryPlus" />
            </para>
          </description>
        </item>
      </list>
      <para>In addition, the <see cref="Overload:System.Linq.Expressions.Expression.MakeUnary" /> methods can also be used to create a <see cref="T:System.Linq.Expressions.UnaryExpression" />. These factory methods can be used to create a <see cref="T:System.Linq.Expressions.UnaryExpression" /> of any node type that represents a unary operation. The parameter of these methods that is of type <see cref="P:System.Linq.Expressions.Expression.NodeType" /> specifies the desired node type.</para>
    </remarks>
    <summary>
      <attribution license="cc4" from="Microsoft" modified="false" />
      <para>Represents an expression that has a unary operator.</para>
    </summary>
  </Docs>
  <Members>
    <Member MemberName="Accept">
      <MemberSignature Language="C#" Value="protected override System.Linq.Expressions.Expression Accept (System.Linq.Expressions.ExpressionVisitor visitor);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig virtual instance class System.Linq.Expressions.Expression Accept(class System.Linq.Expressions.ExpressionVisitor visitor) cil managed" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.Expressions.Expression</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="visitor" Type="System.Linq.Expressions.ExpressionVisitor" />
      </Parameters>
      <Docs>
        <param name="visitor">To be added.</param>
        <summary>To be added.</summary>
        <returns>To be added.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="CanReduce">
      <MemberSignature Language="C#" Value="public override bool CanReduce { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance bool CanReduce" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Boolean</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>To be added.</remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Gets a value that indicates whether the expression tree node can be reduced.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="IsLifted">
      <MemberSignature Language="C#" Value="public bool IsLifted { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance bool IsLifted" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Boolean</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>An operator call is <newTerm>lifted</newTerm> if the operator expects a non-nullable operand but a nullable operand is passed to it.</para>
        </remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Gets a value that indicates whether the expression tree node represents a lifted call to an operator.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="IsLiftedToNull">
      <MemberSignature Language="C#" Value="public bool IsLiftedToNull { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance bool IsLiftedToNull" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Boolean</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>An operator call is <newTerm>lifted</newTerm> if the operator expects a non-nullable operand but a nullable operand is passed to it. If the value of <see cref="P:System.Linq.Expressions.UnaryExpression.IsLiftedToNull" /> is true, the operator returns a nullable type and if the nullable operand evaluates to null, the operator returns null.</para>
        </remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Gets a value that indicates whether the expression tree node represents a lifted call to an operator whose return type is lifted to a nullable type.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="Method">
      <MemberSignature Language="C#" Value="public System.Reflection.MethodInfo Method { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Reflection.MethodInfo Method" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Reflection.MethodInfo</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>To be added.</remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Gets the implementing method for the unary operation.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="NodeType">
      <MemberSignature Language="C#" Value="public override sealed System.Linq.Expressions.ExpressionType NodeType { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance valuetype System.Linq.Expressions.ExpressionType NodeType" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.Expressions.ExpressionType</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>To be added.</remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Returns the node type of this <see cref="T:System.Linq.Expressions.Expression" />.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="Operand">
      <MemberSignature Language="C#" Value="public System.Linq.Expressions.Expression Operand { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Linq.Expressions.Expression Operand" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.Expressions.Expression</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>To be added.</remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Gets the operand of the unary operation.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="Reduce">
      <MemberSignature Language="C#" Value="public override System.Linq.Expressions.Expression Reduce ();" />
      <MemberSignature Language="ILAsm" Value=".method public hidebysig virtual instance class System.Linq.Expressions.Expression Reduce() cil managed" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.Expressions.Expression</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <remarks>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>If the CanReduce method returns true, this should return a valid expression.</para>
          <para>This method can return another node which itself must be reduced.</para>
        </remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Reduces the expression node to a simpler expression. </para>
        </summary>
        <returns>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The reduced expression.</para>
        </returns>
      </Docs>
    </Member>
    <Member MemberName="Type">
      <MemberSignature Language="C#" Value="public override sealed Type Type { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Type Type" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Type</ReturnType>
      </ReturnValue>
      <Docs>
        <value>To be added.</value>
        <remarks>To be added.</remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Gets the static type of the expression that this <see cref="T:System.Linq.Expressions.Expression" /> represents.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="Update">
      <MemberSignature Language="C#" Value="public System.Linq.Expressions.UnaryExpression Update (System.Linq.Expressions.Expression operand);" />
      <MemberSignature Language="ILAsm" Value=".method public hidebysig instance class System.Linq.Expressions.UnaryExpression Update(class System.Linq.Expressions.Expression operand) cil managed" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.Expressions.UnaryExpression</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="operand" Type="System.Linq.Expressions.Expression" />
      </Parameters>
      <Docs>
        <remarks>To be added.</remarks>
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.</para>
        </summary>
        <returns>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>This expression if no children are changed or an expression with the updated children.</para>
        </returns>
        <param name="operand">
          <attribution license="cc4" from="Microsoft" modified="false" />The <see cref="P:System.Linq.Expressions.UnaryExpression.Operand" /> property of the result.</param>
      </Docs>
    </Member>
  </Members>
</Type>