polyglot.visit
Class AmbiguityRemover
java.lang.Object
polyglot.visit.NodeVisitor
polyglot.visit.HaltingVisitor
polyglot.visit.ErrorHandlingVisitor
polyglot.visit.ContextVisitor
polyglot.visit.DisambiguationDriver
polyglot.visit.AmbiguityRemover
- All Implemented Interfaces:
- java.lang.Cloneable, Copy
- Direct Known Subclasses:
- Disambiguator
public class AmbiguityRemover
- extends DisambiguationDriver
A visitor which traverses the AST and remove ambiguities found in fields,
method signatures and the code itself.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
visitSigs
protected boolean visitSigs
visitBodies
protected boolean visitBodies
AmbiguityRemover
public AmbiguityRemover(Job job,
TypeSystem ts,
NodeFactory nf)
AmbiguityRemover
public AmbiguityRemover(Job job,
TypeSystem ts,
NodeFactory nf,
boolean visitSigs,
boolean visitBodies)
override
public Node override(Node parent,
Node n)
- Description copied from class:
NodeVisitor
- Given a tree rooted at
n
, the visitor has the option of
overriding all traversal of the children of n
. If no
changes were made to n
and the visitor wishes to prevent
further traversal of the tree, then it should return n
. If
changes were made to the subtree, then the visitor should return a
copy of n
with appropriate changes. Finally, if the
visitor does not wish to override traversal of the subtree rooted at
n
, then it should return null
.
The default implementation of this method is to call
override(n)
, as most subclasses do not need to know
the parent of the node n
.
- Overrides:
override
in class HaltingVisitor
- Parameters:
parent
- The parent of n
,
null
if n
has no parent.n
- The root of the subtree to be traversed.
- Returns:
- A node if normal traversal is to stop,
null
if it
is to continue.
enterCall
protected NodeVisitor enterCall(Node n)
throws SemanticException
- Overrides:
enterCall
in class ErrorHandlingVisitor
- Throws:
SemanticException
leaveCall
protected Node leaveCall(Node old,
Node n,
NodeVisitor v)
throws SemanticException
- Overrides:
leaveCall
in class ErrorHandlingVisitor
- Throws:
SemanticException
bypass
public HaltingVisitor bypass(java.util.Collection c)
- Overrides:
bypass
in class HaltingVisitor
bypass
public HaltingVisitor bypass(Node n)
- Overrides:
bypass
in class HaltingVisitor
bypassChildren
public HaltingVisitor bypassChildren(Node n)
- Overrides:
bypassChildren
in class HaltingVisitor
isASTDisambiguated
public boolean isASTDisambiguated(Node n)
astAmbiguityCount
public static int astAmbiguityCount(Node n)