Class NullSafetyExpression
Represents expression that is protected by null check, e.g. safe navigation operator (?. in C#).
Namespace: DotNext.Linq.Expressions
Assembly: DotNext.Metaprogramming.dll
Syntax
public sealed class NullSafetyExpression : ExpressionProperties
| Improve this Doc View SourceBody
Gets the body to be executed if Target is not null.
Declaration
public Expression Body { get; }Property Value
| Type | Description |
|---|---|
| Expression |
CanReduce
Always returns true because
this expression is
Declaration
public override bool CanReduce { get; }Property Value
| Type | Description |
|---|---|
| Boolean |
NodeType
Always returns
Declaration
public override ExpressionType NodeType { get; }Property Value
| Type | Description |
|---|---|
| ExpressionType |
Target
Gets expression augmented by null check.
Declaration
public ParameterExpression Target { get; }Property Value
| Type | Description |
|---|---|
| ParameterExpression |
Type
Gets type of this expression.
Declaration
public override Type Type { get; }Property Value
| Type | Description |
|---|---|
| Type |
Methods
| Improve this Doc View SourceCreate(Expression, Func<ParameterExpression, Expression>)
Creates a new safe navigation expression.
Declaration
public static NullSafetyExpression Create(Expression target, Func<ParameterExpression, Expression> body)Parameters
| Type | Name | Description |
|---|---|---|
| Expression | target | The expression that is guarded by null check. |
| Func<ParameterExpression, Expression> | body | The body to be executed if |
Returns
| Type | Description |
|---|---|
| NullSafetyExpression | The expression representing safe navigation. |
Reduce()
Translates this expression into predefined set of expressions using Lowering technique.
Declaration
public override Expression Reduce()Returns
| Type | Description |
|---|---|
| Expression | Translated expression. |
Update(Expression)
Reconstructs expression with a new body.
Declaration
public NullSafetyExpression Update(Expression body)Parameters
| Type | Name | Description |
|---|---|---|
| Expression | body | The new body of this expression. |
Returns
| Type | Description |
|---|---|
| NullSafetyExpression | Updated expression. |