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IDeclarationPatternOperation Interface

Definition

Represents a pattern that declares a symbol.

Current usage:

  1. C# declaration pattern

public interface class IDeclarationPatternOperation : Microsoft::CodeAnalysis::Operations::IPatternOperation
public interface IDeclarationPatternOperation : Microsoft.CodeAnalysis.Operations.IPatternOperation
type IDeclarationPatternOperation = interface
    interface IPatternOperation
    interface IOperation
Public Interface IDeclarationPatternOperation
Implements IPatternOperation
Implements

Remarks

This node is associated with the following operation kinds:

This interface is reserved for implementation by its associated APIs. We reserve the right to change it in the future.

Properties

ChildOperations

An enumerable of child operations for this operation.

(Inherited from IOperation)
Children
Obsolete.

An array of child operations for this operation. Deprecated: please use ChildOperations.

(Inherited from IOperation)
ConstantValue

If the operation is an expression that evaluates to a constant value, HasValue is true and Value is the value of the expression. Otherwise, HasValue is false.

(Inherited from IOperation)
DeclaredSymbol

Symbol declared by the pattern, if any.

InputType

The input type to the pattern-matching operation.

(Inherited from IPatternOperation)
IsImplicit

Set to True if compiler generated /implicitly computed by compiler code

(Inherited from IOperation)
Kind

Identifies the kind of the operation.

(Inherited from IOperation)
Language

The source language of the IOperation. Possible values are CSharp and VisualBasic.

(Inherited from IOperation)
MatchedType

The type explicitly specified, or null if it was inferred (e.g. using var in C#).

MatchesNull

True if the pattern is of a form that accepts null. For example, in C# the pattern var x will match a null input, while the pattern string x will not.

NarrowedType

The narrowed type of the pattern-matching operation.

(Inherited from IPatternOperation)
Parent

IOperation that has this operation as a child. Null for the root.

(Inherited from IOperation)
SemanticModel

Optional semantic model that was used to generate this operation. Non-null for operations generated from source with GetOperation(SyntaxNode, CancellationToken) API and operation callbacks made to analyzers. Null for operations inside a ControlFlowGraph.

(Inherited from IOperation)
Syntax

Syntax that was analyzed to produce the operation.

(Inherited from IOperation)
Type

Result type of the operation, or null if the operation does not produce a result.

(Inherited from IOperation)

Methods

Accept(OperationVisitor) (Inherited from IOperation)
Accept<TArgument,TResult>(OperationVisitor<TArgument,TResult>, TArgument) (Inherited from IOperation)

Extension Methods

Descendants(IOperation)

Returns all the descendant operations of the given operation in evaluation order.

DescendantsAndSelf(IOperation)

Returns all the descendant operations of the given operation including the given operation in evaluation order.

Applies to