749 lines
35 KiB
C#
749 lines
35 KiB
C#
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//---------------------------------------------------------------------
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// <copyright file="BasicExpressionVisitor.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//
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// @owner [....]
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// @backupOwner [....]
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//---------------------------------------------------------------------
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namespace System.Data.Common.CommandTrees
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{
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using System.Collections.Generic;
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using System.Diagnostics;
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/// <summary>
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/// An abstract base type for types that implement the IExpressionVisitor interface to derive from.
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/// </summary>
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/*CQT_PUBLIC_API(*/internal/*)*/ abstract class BasicExpressionVisitor : DbExpressionVisitor
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{
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#region protected API, may be overridden to add functionality at specific points in the traversal
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/// <summary>
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/// Convenience method to visit the specified <see cref="DbUnaryExpression"/>.
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/// </summary>
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/// <param name="expression">The DbUnaryExpression to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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protected virtual void VisitUnaryExpression(DbUnaryExpression expression)
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{
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VisitExpression(EntityUtil.CheckArgumentNull(expression, "expression").Argument);
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}
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/// <summary>
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/// Convenience method to visit the specified <see cref="DbBinaryExpression"/>.
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/// </summary>
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/// <param name="expression">The DbBinaryExpression to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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protected virtual void VisitBinaryExpression(DbBinaryExpression expression)
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{
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EntityUtil.CheckArgumentNull(expression, "expression");
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VisitExpression(expression.Left);
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VisitExpression(expression.Right);
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}
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/// <summary>
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/// Convenience method to visit the specified <see cref="DbExpressionBinding"/>.
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/// </summary>
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/// <param name="binding">The DbExpressionBinding to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="binding"/> is null</exception>
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protected virtual void VisitExpressionBindingPre(DbExpressionBinding binding)
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{
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EntityUtil.CheckArgumentNull(binding, "binding");
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VisitExpression(binding.Expression);
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}
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/// <summary>
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/// Convenience method for post-processing after a DbExpressionBinding has been visited.
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/// </summary>
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/// <param name="binding">The previously visited DbExpressionBinding.</param>
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protected virtual void VisitExpressionBindingPost(DbExpressionBinding binding)
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{
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}
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/// <summary>
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/// Convenience method to visit the specified <see cref="DbGroupExpressionBinding"/>.
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/// </summary>
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/// <param name="binding">The DbGroupExpressionBinding to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="binding"/> is null</exception>
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protected virtual void VisitGroupExpressionBindingPre(DbGroupExpressionBinding binding)
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{
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EntityUtil.CheckArgumentNull(binding, "binding");
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VisitExpression(binding.Expression);
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}
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/// <summary>
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/// Convenience method indicating that the grouping keys of a <see cref="DbGroupByExpression"/> have been visited and the aggregates are now about to be visited.
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/// </summary>
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/// <param name="binding">The DbGroupExpressionBinding of the DbGroupByExpression</param>
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protected virtual void VisitGroupExpressionBindingMid(DbGroupExpressionBinding binding)
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{
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}
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/// <summary>
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/// Convenience method for post-processing after a DbGroupExpressionBinding has been visited.
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/// </summary>
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/// <param name="binding">The previously visited DbGroupExpressionBinding.</param>
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protected virtual void VisitGroupExpressionBindingPost(DbGroupExpressionBinding binding)
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{
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}
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/// <summary>
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/// Convenience method indicating that the body of a Lambda <see cref="DbFunctionExpression"/> is now about to be visited.
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/// </summary>
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/// <param name="lambda">The DbLambda that is about to be visited</param>
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/// <exception cref="ArgumentNullException"><paramref name="lambda"/> is null</exception>
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protected virtual void VisitLambdaPre(DbLambda lambda)
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{
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EntityUtil.CheckArgumentNull(lambda, "lambda");
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}
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/// <summary>
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/// Convenience method for post-processing after a DbLambda has been visited.
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/// </summary>
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/// <param name="lambda">The previously visited DbLambda.</param>
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protected virtual void VisitLambdaPost(DbLambda lambda)
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{
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}
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#endregion
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#region public convenience API
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/// <summary>
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/// Convenience method to visit the specified <see cref="DbExpression"/>, if non-null.
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/// </summary>
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/// <param name="expression">The expression to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public virtual void VisitExpression(DbExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression").Accept(this);
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}
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/// <summary>
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/// Convenience method to visit each <see cref="DbExpression"/> in the given list, if the list is non-null.
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/// </summary>
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/// <param name="expressionList">The list of expressions to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expressionList"/> is null</exception>
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public virtual void VisitExpressionList(IList<DbExpression> expressionList)
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{
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EntityUtil.CheckArgumentNull(expressionList, "expressionList");
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for(int idx = 0; idx < expressionList.Count; idx++)
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{
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VisitExpression(expressionList[idx]);
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}
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}
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/// <summary>
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/// Convenience method to visit each <see cref="DbAggregate"/> in the list, if the list is non-null.
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/// </summary>
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/// <param name="aggregates">The list of aggregates to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="aggregates"/> is null</exception>
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public virtual void VisitAggregateList(IList<DbAggregate> aggregates)
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{
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EntityUtil.CheckArgumentNull(aggregates, "aggregates");
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for(int idx = 0; idx < aggregates.Count; idx++)
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{
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VisitAggregate(aggregates[idx]);
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}
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}
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/// <summary>
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/// Convenience method to visit the specified <see cref="DbAggregate"/>.
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/// </summary>
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/// <param name="aggregate">The aggregate to visit.</param>
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/// <exception cref="ArgumentNullException"><paramref name="aggregate"/> is null</exception>
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public virtual void VisitAggregate(DbAggregate aggregate)
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{
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// #433613: PreSharp warning 56506: Parameter 'aggregate' to this public method must be validated: A null-dereference can occur here.
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VisitExpressionList(EntityUtil.CheckArgumentNull(aggregate, "aggregate").Arguments);
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}
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internal virtual void VisitRelatedEntityReferenceList(IList<DbRelatedEntityRef> relatedEntityReferences)
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{
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for (int idx = 0; idx < relatedEntityReferences.Count; idx++)
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{
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this.VisitRelatedEntityReference(relatedEntityReferences[idx]);
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}
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}
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internal virtual void VisitRelatedEntityReference(DbRelatedEntityRef relatedEntityRef)
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{
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VisitExpression(relatedEntityRef.TargetEntityReference);
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}
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#endregion
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#region DbExpressionVisitor Members
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/// <summary>
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/// Called when an <see cref="DbExpression"/> of an otherwise unrecognized type is encountered.
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/// </summary>
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/// <param name="expression">The expression</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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/// <exception cref="NotSupportedException">Always thrown if this method is called, since it indicates that <paramref name="expression"/> is of an unsupported type</exception>
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public override void Visit(DbExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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throw EntityUtil.NotSupported(System.Data.Entity.Strings.Cqt_General_UnsupportedExpression(expression.GetType().FullName));
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbConstantExpression"/>.
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/// </summary>
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/// <param name="expression">The DbConstantExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbConstantExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbNullExpression"/>.
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/// </summary>
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/// <param name="expression">The DbNullExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbNullExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbVariableReferenceExpression"/>.
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/// </summary>
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/// <param name="expression">The DbVariableReferenceExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbVariableReferenceExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbParameterReferenceExpression"/>.
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/// </summary>
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/// <param name="expression">The DbParameterReferenceExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbParameterReferenceExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbFunctionExpression"/>.
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/// </summary>
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/// <param name="expression">The DbFunctionExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbFunctionExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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VisitExpressionList(expression.Arguments);
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbLambdaExpression"/>.
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/// </summary>
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/// <param name="expression">The DbLambdaExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbLambdaExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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VisitExpressionList(expression.Arguments);
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VisitLambdaPre(expression.Lambda);
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VisitExpression(expression.Lambda.Body);
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VisitLambdaPost(expression.Lambda);
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}
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#if METHOD_EXPRESSION
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/// <summary>
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/// Visitor pattern method for <see cref="MethodExpression"/>.
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/// </summary>
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/// <param name="expression">The MethodExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(MethodExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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if (expression.Instance != null)
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{
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VisitExpression(expression.Instance);
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}
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VisitExpressionList(expression.Arguments);
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}
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#endif
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/// <summary>
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/// Visitor pattern method for <see cref="DbPropertyExpression"/>.
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/// </summary>
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/// <param name="expression">The DbPropertyExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbPropertyExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
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EntityUtil.CheckArgumentNull(expression, "expression");
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if(expression.Instance != null)
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{
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VisitExpression(expression.Instance);
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}
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbComparisonExpression"/>.
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/// </summary>
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/// <param name="expression">The DbComparisonExpression that is being visited.</param>
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
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public override void Visit(DbComparisonExpression expression)
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{
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VisitBinaryExpression(expression);
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}
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/// <summary>
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/// Visitor pattern method for <see cref="DbLikeExpression"/>.
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||
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/// </summary>
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||
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/// <param name="expression">The DbLikeExpression that is being visited.</param>
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||
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
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public override void Visit(DbLikeExpression expression)
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{
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
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EntityUtil.CheckArgumentNull(expression, "expression");
|
||
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VisitExpression(expression.Argument);
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||
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VisitExpression(expression.Pattern);
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||
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VisitExpression(expression.Escape);
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||
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}
|
||
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||
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/// <summary>
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||
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/// Visitor pattern method for <see cref="DbLimitExpression"/>.
|
||
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/// </summary>
|
||
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/// <param name="expression">The DbLimitExpression that is being visited.</param>
|
||
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
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public override void Visit(DbLimitExpression expression)
|
||
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{
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||
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// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
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EntityUtil.CheckArgumentNull(expression, "expression");
|
||
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||
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VisitExpression(expression.Argument);
|
||
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VisitExpression(expression.Limit);
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||
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}
|
||
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||
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/// <summary>
|
||
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/// Visitor pattern method for <see cref="DbIsNullExpression"/>.
|
||
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/// </summary>
|
||
|
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/// <param name="expression">The DbIsNullExpression that is being visited.</param>
|
||
|
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
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public override void Visit(DbIsNullExpression expression)
|
||
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{
|
||
|
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VisitUnaryExpression(expression);
|
||
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}
|
||
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|
||
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/// <summary>
|
||
|
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/// Visitor pattern method for <see cref="DbArithmeticExpression"/>.
|
||
|
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/// </summary>
|
||
|
|
/// <param name="expression">The DbArithmeticExpression that is being visited.</param>
|
||
|
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/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
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public override void Visit(DbArithmeticExpression expression)
|
||
|
|
{
|
||
|
|
VisitExpressionList(EntityUtil.CheckArgumentNull(expression, "expression").Arguments);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbAndExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbAndExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbAndExpression expression)
|
||
|
|
{
|
||
|
|
VisitBinaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbOrExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbOrExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbOrExpression expression)
|
||
|
|
{
|
||
|
|
VisitBinaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbNotExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbNotExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbNotExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbDistinctExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbDistinctExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbDistinctExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbElementExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbElementExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbElementExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbIsEmptyExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbIsEmptyExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbIsEmptyExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbUnionAllExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbUnionAllExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbUnionAllExpression expression)
|
||
|
|
{
|
||
|
|
VisitBinaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbIntersectExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbIntersectExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbIntersectExpression expression)
|
||
|
|
{
|
||
|
|
VisitBinaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbExceptExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbExceptExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbExceptExpression expression)
|
||
|
|
{
|
||
|
|
VisitBinaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbOfTypeExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbOfTypeExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbOfTypeExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbTreatExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbTreatExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbTreatExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbCastExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbCastExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbCastExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbIsOfExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbIsOfExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbIsOfExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbCaseExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbCaseExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbCaseExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionList(expression.When);
|
||
|
|
VisitExpressionList(expression.Then);
|
||
|
|
VisitExpression(expression.Else);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbNewInstanceExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbNewInstanceExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbNewInstanceExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
VisitExpressionList(expression.Arguments);
|
||
|
|
if (expression.HasRelatedEntityReferences)
|
||
|
|
{
|
||
|
|
Debug.Assert(expression.RelatedEntityReferences != null, "HasRelatedEntityReferences returned true for null RelatedEntityReferences list?");
|
||
|
|
this.VisitRelatedEntityReferenceList(expression.RelatedEntityReferences);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbRefExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbRefExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbRefExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbRelationshipNavigationExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbRelationshipNavigationExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbRelationshipNavigationExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
VisitExpression(EntityUtil.CheckArgumentNull(expression, "expression").NavigationSource);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbDerefExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DeRefExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbDerefExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbRefKeyExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbRefKeyExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbRefKeyExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbEntityRefExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbEntityRefExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbEntityRefExpression expression)
|
||
|
|
{
|
||
|
|
VisitUnaryExpression(expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbScanExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbScanExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbScanExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbFilterExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbFilterExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbFilterExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Input);
|
||
|
|
VisitExpression(expression.Predicate);
|
||
|
|
VisitExpressionBindingPost(expression.Input);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbProjectExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbProjectExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbProjectExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Input);
|
||
|
|
VisitExpression(expression.Projection);
|
||
|
|
VisitExpressionBindingPost(expression.Input);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbCrossJoinExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbCrossJoinExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbCrossJoinExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
foreach (DbExpressionBinding b in expression.Inputs)
|
||
|
|
{
|
||
|
|
VisitExpressionBindingPre(b);
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach (DbExpressionBinding b in expression.Inputs)
|
||
|
|
{
|
||
|
|
VisitExpressionBindingPost(b);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbJoinExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbJoinExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbJoinExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Left);
|
||
|
|
VisitExpressionBindingPre(expression.Right);
|
||
|
|
|
||
|
|
VisitExpression(expression.JoinCondition);
|
||
|
|
|
||
|
|
VisitExpressionBindingPost(expression.Left);
|
||
|
|
VisitExpressionBindingPost(expression.Right);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbApplyExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbApplyExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbApplyExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Input);
|
||
|
|
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression.Apply' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
if (expression.Apply != null)
|
||
|
|
{
|
||
|
|
VisitExpression(expression.Apply.Expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
VisitExpressionBindingPost(expression.Input);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbGroupByExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbGroupByExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitGroupExpressionBindingPre(expression.Input);
|
||
|
|
VisitExpressionList(expression.Keys);
|
||
|
|
VisitGroupExpressionBindingMid(expression.Input);
|
||
|
|
VisitAggregateList(expression.Aggregates);
|
||
|
|
VisitGroupExpressionBindingPost(expression.Input);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbSkipExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbSkipExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbSkipExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Input);
|
||
|
|
foreach (DbSortClause sortKey in expression.SortOrder)
|
||
|
|
{
|
||
|
|
VisitExpression(sortKey.Expression);
|
||
|
|
}
|
||
|
|
VisitExpressionBindingPost(expression.Input);
|
||
|
|
VisitExpression(expression.Count);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbSortExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbSortExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbSortExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Input);
|
||
|
|
for(int idx = 0; idx < expression.SortOrder.Count; idx++)
|
||
|
|
{
|
||
|
|
VisitExpression(expression.SortOrder[idx].Expression);
|
||
|
|
}
|
||
|
|
VisitExpressionBindingPost(expression.Input);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Visitor pattern method for <see cref="DbQuantifierExpression"/>.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="expression">The DbQuantifierExpression that is being visited.</param>
|
||
|
|
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
|
||
|
|
public override void Visit(DbQuantifierExpression expression)
|
||
|
|
{
|
||
|
|
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
|
||
|
|
EntityUtil.CheckArgumentNull(expression, "expression");
|
||
|
|
|
||
|
|
VisitExpressionBindingPre(expression.Input);
|
||
|
|
VisitExpression(expression.Predicate);
|
||
|
|
VisitExpressionBindingPost(expression.Input);
|
||
|
|
}
|
||
|
|
#endregion
|
||
|
|
}
|
||
|
|
}
|