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TreePathScanner (Compiler Tree API) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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com.sun.source.util
Class TreePathScanner<R,P>

java.lang.Object
  com.sun.source.util.TreeScanner<R,P>
      com.sun.source.util.TreePathScanner<R,P>

All Implemented Interfaces:

TreeVisitor<R,P>

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public class TreePathScanner<R,P>
extends TreeScanner<R,P>

A TreeVisitor that visits all the child tree nodes, and provides support for maintaining a path for the parent nodes. To visit nodes of a particular type, just override the corresponding visitorXYZ method. Inside your method, call super.visitXYZ to visit descendant nodes.

Since:

1.6

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Constructor Summary
TreePathScanner()

 

Method Summary
TreePath	getCurrentPath()           Get the current path for the node, as built up by the currently active set of scan calls.
R	scan(Tree tree, P p)           Scan a single node.
R	scan(TreePath path, P p)           Scan a tree from a position identified by a TreePath.

 

Methods inherited from class com.sun.source.util.TreeScanner

reduce, scan, visitAnnotation, visitArrayAccess, visitArrayType, visitAssert, visitAssignment, visitBinary, visitBlock, visitBreak, visitCase, visitCatch, visitClass, visitCompilationUnit, visitCompoundAssignment, visitConditionalExpression, visitContinue, visitDoWhileLoop, visitEmptyStatement, visitEnhancedForLoop, visitErroneous, visitExpressionStatement, visitForLoop, visitIdentifier, visitIf, visitImport, visitInstanceOf, visitLabeledStatement, visitLiteral, visitMemberSelect, visitMethod, visitMethodInvocation, visitModifiers, visitNewArray, visitNewClass, visitOther, visitParameterizedType, visitParenthesized, visitPrimitiveType, visitReturn, visitSwitch, visitSynchronized, visitThrow, visitTry, visitTypeCast, visitTypeParameter, visitUnary, visitVariable, visitWhileLoop, visitWildcard

 

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

 

Constructor Detail

TreePathScanner

public TreePathScanner()

Method Detail

scan

public R scan(TreePath path,
              P p)

Scan a tree from a position identified by a TreePath.

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scan

public R scan(Tree tree,
              P p)

Scan a single node. The current path is updated for the duration of the scan.

Overrides:

scan in class TreeScanner<R,P>

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getCurrentPath

public TreePath getCurrentPath()

Get the current path for the node, as built up by the currently active set of scan calls.

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