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## jif.visit
Class ConstChecker

    java.lang.Object
      polyglot.visit.NodeVisitor
          jif.visit.ConstChecker

All Implemented Interfaces:
  java.lang.Cloneable, polyglot.util.Copy

    public class ConstChecker

extends polyglot.visit.NodeVisitor

Visitor which traverses an expression AST, and determines if the expression is a constant expression. This visitor should only be used for checking the initialization expressions of static fields; it is not checking for compile-time constants. In general, we prevent static initializers from containing any references, as such a refernce may cause a class to be loaded, and thus leak information about when a class is first mentioned. However, we allow literals (e.g. String literals) and array initializers (although if an element of the array initalizer is not constant, it will be ruled out.)

Constructor Summary
`ConstChecker()`

Method Summary
`boolean` | `isConst()`
`polyglot.ast.Node` | `leave(polyglot.ast.Node old, polyglot.ast.Node n, polyglot.visit.NodeVisitor v)`
`polyglot.ast.Node` | `override(polyglot.ast.Node n)`

Methods inherited from class polyglot.visit.NodeVisitor
`begin, copy, enter, enter, finish, finish, leave, override, toString, visitEdge, visitEdgeNoOverride`

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

Constructor Detail

### ConstChecker

    public ConstChecker()

Method Detail

### isConst

    public boolean isConst()

### override

    public polyglot.ast.Node override(polyglot.ast.Node n)

  Overrides:
    `override` in class `polyglot.visit.NodeVisitor`

### leave

    public polyglot.ast.Node leave(polyglot.ast.Node old,
                                   polyglot.ast.Node n,
                                   polyglot.visit.NodeVisitor v)

  Overrides:
    `leave` in class `polyglot.visit.NodeVisitor`

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