ExpressionAst Class

  • Reference

Definition

Namespace:
System.Management.Automation.Language
Assembly:
System.Management.Automation.dll
Package:
Microsoft.PowerShell.5.1.ReferenceAssemblies v1.0.0
Package:
System.Management.Automation v7.0.13
Package:
System.Management.Automation v7.1.7
Package:
System.Management.Automation v7.2.12
Package:
System.Management.Automation v7.3.5
Package:
System.Management.Automation v7.4.0
Package:
Microsoft.WSMan.Runtime v6.1.0
Package:
Microsoft.WSMan.Runtime v6.2.0

An abstract base class that represents all PowerShell expressions.

public ref class ExpressionAst abstract : System::Management::Automation::Language::CommandElementAst
public abstract class ExpressionAst : System.Management.Automation.Language.CommandElementAst
type ExpressionAst = class
    inherit CommandElementAst
Public MustInherit Class ExpressionAst
Inherits CommandElementAst
Inheritance
Object
Ast
CommandElementAst
ExpressionAst
Derived

Constructors

ExpressionAst(IScriptExtent)

Initialize the fields common to all expressions.

Properties

Extent

The extent in the source this ast represents.

(Inherited from Ast)
Parent

The parent tree for this node.

(Inherited from Ast)
StaticType

By default, the static type of an expression is unknown and hence we assume typeof(object).

Methods

Copy()

Duplicates the AST, allowing it to be composed into other ASTs.

(Inherited from Ast)
Find(Func<Ast,Boolean>, Boolean)

Traverse the entire Ast, returning the first node in the tree for which predicate returns true.

(Inherited from Ast)
FindAll(Func<Ast,Boolean>, Boolean)

Traverse the entire Ast, returning all nodes in the tree for which predicate returns true.

(Inherited from Ast)
SafeGetValue()

Constructs the resultant object from the AST and returns it if it is safe.

(Inherited from Ast)
SafeGetValue(Boolean)

Constructs the resultant object from the AST and returns it if it is safe.

(Inherited from Ast)
ToString()

Formats the ast and returns a string.

(Inherited from Ast)
Visit(AstVisitor)

Visit each node in the Ast, calling the methods in astVisitor for each node in the ast.

(Inherited from Ast)
Visit(ICustomAstVisitor)

Visit the Ast using a visitor that can choose how the tree traversal is performed. This visit method is for advanced uses of the visitor pattern where an AstVisitor is insufficient.

(Inherited from Ast)

Applies to