Package com.google.javascript.jscomp
Interface NodeTraversal.Callback
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- All Known Subinterfaces:
NodeTraversal.ScopedCallback
- All Known Implementing Classes:
FindExportableNodes
,NodeTraversal.AbstractNodeTypePruningCallback
,NodeTraversal.AbstractPostOrderCallback
,NodeTraversal.AbstractScopedCallback
,NodeTraversal.AbstractShallowCallback
,NodeTraversal.AbstractShallowStatementCallback
,TypeCheck
- Enclosing class:
- NodeTraversal
public static interface NodeTraversal.Callback
Callback
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description boolean
shouldTraverse(NodeTraversal nodeTraversal, Node n, Node parent)
Visits a node in pre order (before visiting its children) and decides whether this node's children should be traversed.void
visit(NodeTraversal t, Node n, Node parent)
Visits a node in post order (after its children have been visited).
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Method Detail
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shouldTraverse
boolean shouldTraverse(NodeTraversal nodeTraversal, Node n, Node parent)
Visits a node in pre order (before visiting its children) and decides whether this node's children should be traversed. If children are traversed, they will be visited by
visit(NodeTraversal, Node, Node)
in post order.Implementations can have side effects (e.g. modifying the parse tree).
- Returns:
- whether the children of this node should be visited
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visit
void visit(NodeTraversal t, Node n, Node parent)
Visits a node in post order (after its children have been visited). A node is visited only if all its parents should be traversed (
shouldTraverse(NodeTraversal, Node, Node)
).Implementations can have side effects (e.g. modifying the parse tree).
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