NodeTraversal.AbstractPostOrderCallback

java.lang.Object
- com.google.javascript.jscomp.NodeTraversal.AbstractPostOrderCallback

All Implemented Interfaces:

NodeTraversal.Callback

Direct Known Subclasses:

BranchCoverageInstrumentationCallback, CheckArrayWithGoogObject, CheckConstPrivateProperties, CheckDuplicateCase, CheckEmptyStatements, CheckEnums, CheckExtraRequires, CheckInterfaces, CheckJSDocStyle, CheckMissingOverrideTypes, CheckMissingSemicolon, CheckNullabilityModifiers, CheckPrimitiveAsObject, CheckTypeImportCodeReferences, CheckVar, ChromePass, Es6CheckModule, Es6ConvertSuper, Es6ExtractClasses, Es6ForOfConverter, Es6NormalizeShorthandProperties, Es6RewriteBlockScopedDeclaration, Es6RewriteBlockScopedFunctionDeclaration, Es6RewriteClassExtendsExpressions, Es6RewriteRestAndSpread, Es6SplitVariableDeclarations, ImplicitNullabilityCheck, InjectTranspilationRuntimeLibraries, J2clAssertRemovalPass, J2clChecksPass, J2clUtilGetDefineRewriterPass, JsMessageVisitor, MarkUntranspilableFeaturesAsRemoved, RewriteDynamicImports, RewriteJsonToModule, SourceInformationAnnotator

Enclosing class:

NodeTraversal
```
public abstract static class NodeTraversal.AbstractPostOrderCallback
extends java.lang.Object
implements NodeTraversal.Callback
```
Abstract callback to visit all nodes in postorder. Note: Do not create anonymous subclasses of this. Instead, write a lambda expression which will be interpreted as an AbstractPostOrderCallbackInterface.

Constructor Summary

Constructors
Constructor Description

AbstractPostOrderCallback()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`shouldTraverse(NodeTraversal nodeTraversal, Node n, Node parent)`	Visits a node in preorder (before its children) and decides whether its children should be traversed.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.javascript.jscomp.NodeTraversal.Callback
visit

- Constructor Detail
  - AbstractPostOrderCallback
```
public AbstractPostOrderCallback()
```
- Method Detail
  - shouldTraverse
```
public final boolean shouldTraverse(NodeTraversal nodeTraversal,
                                    Node n,
                                    Node parent)
```
    Description copied from interface: NodeTraversal.Callback
    
    Visits a node in preorder (before its children) and decides whether its children should be traversed. If the children should be traversed, they will be visited by NodeTraversal.Callback.shouldTraverse(NodeTraversal, Node, Node) in preorder and by NodeTraversal.Callback.visit(NodeTraversal, Node, Node) in postorder.
    Siblings are always visited left-to-right.
    Implementations can have side-effects (e.g. modify the parse tree). Removing the current node is legal, but removing or reordering nodes above the current node may cause nodes to be visited twice or not at all.
    
    Specified by:
    
    shouldTraverse in interface NodeTraversal.Callback
    
    Parameters:
    
    nodeTraversal - The current traversal.
    
    n - The current node.
    
    parent - The parent of the current node.
    
    Returns:
    
    whether the children of this node should be visited