com.oracle.truffle.regex.tregex.parser.ast.visitors

Class CopyVisitor

java.lang.Object

com.oracle.truffle.regex.tregex.parser.ast.visitors.RegexASTVisitor

com.oracle.truffle.regex.tregex.parser.ast.visitors.DepthFirstTraversalRegexASTVisitor

com.oracle.truffle.regex.tregex.parser.ast.visitors.CopyVisitor

public class CopyVisitor
extends DepthFirstTraversalRegexASTVisitor

An AST visitor that produces a deep copy of a given Term and its subtree, and registers all new nodes in the RegexAST provided at instantiation. This visitor should be preferred over recursively copying with RegexASTNode.copy(RegexAST, boolean) whenever possible, since it is non-recursive. Note that this visitor is not thread-safe!

See Also:

DepthFirstTraversalRegexASTVisitor

Constructor Summary

Constructors

Constructor and Description
CopyVisitor(RegexAST ast)

Method Summary

Modifier and Type	Method and Description
Term	copy(Term term)
protected void	leave(Group group)
protected void	leave(LookAheadAssertion assertion)
protected void	leave(LookBehindAssertion assertion)
protected void	leave(Sequence sequence)
protected void	visit(BackReference backReference)
protected void	visit(CharacterClass characterClass)
protected void	visit(Group group)
protected void	visit(LookAheadAssertion assertion)
protected void	visit(LookBehindAssertion assertion)
protected void	visit(PositionAssertion assertion)
protected void	visit(Sequence sequence)

Methods inherited from class com.oracle.truffle.regex.tregex.parser.ast.visitors.DepthFirstTraversalRegexASTVisitor

init, isForward, isReverse, run, runReverse

Methods inherited from class com.oracle.truffle.regex.tregex.parser.ast.visitors.RegexASTVisitor

doLeave, doVisit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CopyVisitor

public CopyVisitor(RegexAST ast)

Method Detail

copy

public Term copy(Term term)

visit

protected void visit(BackReference backReference)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor

visit

protected void visit(Group group)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor

leave

protected void leave(Group group)

Overrides:

leave in class DepthFirstTraversalRegexASTVisitor

visit

protected void visit(Sequence sequence)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor

leave

protected void leave(Sequence sequence)

Overrides:

leave in class DepthFirstTraversalRegexASTVisitor

visit

protected void visit(PositionAssertion assertion)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor

visit

protected void visit(LookBehindAssertion assertion)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor

leave

protected void leave(LookBehindAssertion assertion)

Overrides:

leave in class DepthFirstTraversalRegexASTVisitor

visit

protected void visit(LookAheadAssertion assertion)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor

leave

protected void leave(LookAheadAssertion assertion)

Overrides:

leave in class DepthFirstTraversalRegexASTVisitor

visit

protected void visit(CharacterClass characterClass)

Overrides:

visit in class DepthFirstTraversalRegexASTVisitor