Chapter 482: StackNode

Core Idea

Stack is a helper for Nodes that need to produce stack-based code instead of continuous flow. They are usually needed in cases like If, Else.

Key Concepts

• isStackNode : boolean (readonly): This flag can be used for type testing.
• nodes : Array.<Node>: List of nodes.
• outputNode : Node: The output node.
• parent : StackNode: The parent stack node.

Reference Tables

Constructor

Signature
new StackNode( parent : StackNode )

Properties

Property	Description
.isStackNode : boolean (readonly)	This flag can be used for type testing.
.nodes : Array.<Node>	List of nodes.
.outputNode : Node	The output node.
.parent : StackNode	The parent stack node.

Methods

Method	Description
.Case( …params : any ) : StackNode	Represents a case statement in TSL. The TSL version accepts an arbitrary numbers of values. The last parameter must be the callback method that should be executed in the true case.
.Default( method : function ) : StackNode	Represents the default code block of a Switch/Case statement.
.Else( method : function ) : StackNode	Represent an else statement in TSL.
.ElseIf( boolNode : Node, method : function ) : StackNode	Represent an elseif statement in TSL.
.If( boolNode : Node, method : function ) : StackNode	Represent an if statement in TSL.
.Switch( expression : any, method : function ) : StackNode	Represents a switch statement in TSL.
.addToStack( node : Node, index : number ) : StackNode	Adds a node to this stack.
.addToStackBefore( node : Node ) : StackNode	Adds a node to the stack before the current node.

Key Takeaways

1. StackNode extends: EventDispatcher → Node
2. Most relevant properties: isStackNode, nodes, outputNode, parent.
3. Key methods: Case, Default, Else, ElseIf.

Connects To

• EventDispatcher: parent class
• Node: parent class
• Source: src/nodes/core/StackNode.js