Class ExpressionPrinter
- Namespace
- LinqToDB.Internal.Expressions
- Assembly
- linq2db.dll
A class to create a printable string representation of expression.
public sealed class ExpressionPrinter : ExpressionVisitorBase- Inheritance
-
objectExpressionPrinter
- Inherited Members
- Extension Methods
Constructors
ExpressionPrinter()
Creates a new instance of the ExpressionPrinter class.
public ExpressionPrinter()Methods
Append(string)
Appends the given string to current output being built.
public ExpressionPrinter Append(string value)Parameters
valuestringThe string to append.
Returns
- ExpressionPrinter
This printer so additional calls can be chained.
AppendLine()
Appends a new line to current output being built.
public ExpressionPrinter AppendLine()Returns
- ExpressionPrinter
This printer so additional calls can be chained.
AppendLine(string)
Appends the given string and a new line to current output being built.
public ExpressionVisitor AppendLine(string value)Parameters
valuestringThe string to append.
Returns
- ExpressionVisitor
This printer so additional calls can be chained.
AppendLines(string)
Appends all the lines to current output being built.
public ExpressionPrinter AppendLines(string value)Parameters
valuestringThe string to append.
Returns
- ExpressionPrinter
This printer so additional calls can be chained.
GenerateBinaryOperator(ExpressionType)
Returns binary operator string corresponding to given ExpressionType.
public string GenerateBinaryOperator(ExpressionType expressionType)Parameters
expressionTypeExpressionTypeThe expression type to generate binary operator for.
Returns
- string
The binary operator string.
Indent()
Creates a scoped indenter that will increment the indent, then decrement it when disposed.
public IDisposable Indent()Returns
- IDisposable
An indenter.
Print(Expression)
Creates a printable string representation of the given expression.
public static string Print(Expression expression)Parameters
expressionExpressionThe expression to print.
Returns
- string
The printable representation.
PrintDebug(Expression)
Creates a printable verbose string representation of the given expression.
public static string PrintDebug(Expression expression)Parameters
expressionExpressionThe expression to print.
Returns
- string
The printable representation.
PrintExpression(Expression, int?)
Creates a printable string representation of the given expression.
public string PrintExpression(Expression expression, int? characterLimit = null)Parameters
expressionExpressionThe expression to print.
characterLimitint?An optional limit to the number of characters included. Additional output will be truncated.
Returns
- string
The printable representation.
PrintExpressionDebug(Expression)
Creates a printable verbose string representation of the given expression.
public string PrintExpressionDebug(Expression expression)Parameters
expressionExpressionThe expression to print.
Returns
- string
The printable representation.
ToString()
Returns a string that represents the current object.
public override string ToString()Returns
- string
A string that represents the current object.
Visit(Expression?)
Dispatches the expression to one of the more specialized visit methods in this class.
public override Expression? Visit(Expression? expression)Parameters
expressionExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitBinary(BinaryExpression)
Visits the children of the BinaryExpression.
protected override Expression VisitBinary(BinaryExpression binaryExpression)Parameters
binaryExpressionBinaryExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitBlock(BlockExpression)
Visits the children of the BlockExpression.
protected override Expression VisitBlock(BlockExpression blockExpression)Parameters
blockExpressionBlockExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitCollection<T>(IReadOnlyCollection<T>, Action<ExpressionPrinter>?)
Visit given readonly collection of expression for printing.
public void VisitCollection<T>(IReadOnlyCollection<T> items, Action<ExpressionPrinter>? joinAction = null) where T : ExpressionParameters
itemsIReadOnlyCollection<T>A collection of items to print.
joinActionAction<ExpressionPrinter>A join action to use when joining printout of individual item in the collection.
Type Parameters
T
VisitConditional(ConditionalExpression)
Visits the children of the ConditionalExpression.
protected override Expression VisitConditional(ConditionalExpression conditionalExpression)Parameters
conditionalExpressionConditionalExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitConstant(ConstantExpression)
Visits the ConstantExpression.
protected override Expression VisitConstant(ConstantExpression constantExpression)Parameters
constantExpressionConstantExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitDefault(DefaultExpression)
Visits the DefaultExpression.
protected override Expression VisitDefault(DefaultExpression defaultExpression)Parameters
defaultExpressionDefaultExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitExtension(Expression)
Visits the children of the extension expression.
protected override Expression VisitExtension(Expression extensionExpression)Parameters
extensionExpressionExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitGoto(GotoExpression)
Visits the children of the GotoExpression.
protected override Expression VisitGoto(GotoExpression gotoExpression)Parameters
gotoExpressionGotoExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitIndex(IndexExpression)
Visits the children of the IndexExpression.
protected override Expression VisitIndex(IndexExpression indexExpression)Parameters
indexExpressionIndexExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitInvocation(InvocationExpression)
Visits the children of the InvocationExpression.
protected override Expression VisitInvocation(InvocationExpression invocationExpression)Parameters
invocationExpressionInvocationExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitLabel(LabelExpression)
Visits the children of the LabelExpression.
protected override Expression VisitLabel(LabelExpression labelExpression)Parameters
labelExpressionLabelExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitLambda<T>(Expression<T>)
Visits the children of the Expression<TDelegate>.
protected override Expression VisitLambda<T>(Expression<T> lambdaExpression)Parameters
lambdaExpressionExpression<T>
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
Type Parameters
TThe type of the delegate.
VisitLoop(LoopExpression)
Visits the children of the LoopExpression.
protected override Expression VisitLoop(LoopExpression loopExpression)Parameters
loopExpressionLoopExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitMember(MemberExpression)
Visits the children of the MemberExpression.
protected override Expression VisitMember(MemberExpression memberExpression)Parameters
memberExpressionMemberExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitMemberInit(MemberInitExpression)
Visits the children of the MemberInitExpression.
protected override Expression VisitMemberInit(MemberInitExpression memberInitExpression)Parameters
memberInitExpressionMemberInitExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitMethodCall(MethodCallExpression)
Visits the children of the MethodCallExpression.
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)Parameters
methodCallExpressionMethodCallExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitNew(NewExpression)
Visits the children of the NewExpression.
protected override Expression VisitNew(NewExpression newExpression)Parameters
newExpressionNewExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitNewArray(NewArrayExpression)
Visits the children of the NewArrayExpression.
protected override Expression VisitNewArray(NewArrayExpression newArrayExpression)Parameters
newArrayExpressionNewArrayExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitParameter(ParameterExpression)
Visits the ParameterExpression.
protected override Expression VisitParameter(ParameterExpression parameterExpression)Parameters
parameterExpressionParameterExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitSwitch(SwitchExpression)
Visits the children of the SwitchExpression.
protected override Expression VisitSwitch(SwitchExpression switchExpression)Parameters
switchExpressionSwitchExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitTry(TryExpression)
Visits the children of the TryExpression.
protected override Expression VisitTry(TryExpression tryExpression)Parameters
tryExpressionTryExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitTypeBinary(TypeBinaryExpression)
Visits the children of the TypeBinaryExpression.
protected override Expression VisitTypeBinary(TypeBinaryExpression typeBinaryExpression)Parameters
typeBinaryExpressionTypeBinaryExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.
VisitUnary(UnaryExpression)
Visits the children of the UnaryExpression.
protected override Expression VisitUnary(UnaryExpression unaryExpression)Parameters
unaryExpressionUnaryExpression
Returns
- Expression
The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.