polyglot.ext.coffer.ast
Class Free_c

java.lang.Object
  extended by polyglot.ext.jl.ast.Node_c
      extended by polyglot.ext.jl.ast.Term_c
          extended by polyglot.ext.jl.ast.Stmt_c
              extended by polyglot.ext.coffer.ast.Free_c
All Implemented Interfaces:
java.lang.Cloneable, JL, Node, NodeOps, Stmt, Term, Free, Copy

public class Free_c
extends Stmt_c
implements Free

This statement revokes the key associated with a tracked expression. The expression cannot be evaluated after this statement executes.


Field Summary
protected  Expr expr
           
 
Fields inherited from class polyglot.ext.jl.ast.Term_c
exceptions, reachable
 
Fields inherited from class polyglot.ext.jl.ast.Node_c
del, ext, position
 
Constructor Summary
Free_c(Position pos, Expr expr)
           
 
Method Summary
 java.util.List acceptCFG(CFGBuilder v, java.util.List succs)
          Visit this term in evaluation order.
 Term entry()
          Return the first (sub)term performed when evaluating this term.
 Expr expr()
           
 Free expr(Expr expr)
           
 void prettyPrint(CodeWriter w, PrettyPrinter tr)
          Pretty-print the AST using the given CodeWriter.
 Free_c reconstruct(Expr expr)
           
 java.lang.String toString()
           
 void translate(CodeWriter w, Translator tr)
          Translate the AST using the given CodeWriter.
 Node typeCheck(TypeChecker tc)
          Type check the AST.
 Node visitChildren(NodeVisitor v)
          Visit the children of the node.
 
Methods inherited from class polyglot.ext.jl.ast.Term_c
exceptionCheck, exceptions, exceptions, listEntry, reachable, reachable
 
Methods inherited from class polyglot.ext.jl.ast.Node_c
addDecls, addMembers, addMembersEnter, addMembersOverride, buildTypes, buildTypesEnter, buildTypesOverride, childExpectedType, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, dump, enterScope, enterScope, exceptionCheckEnter, exceptionCheckOverride, ext, ext, ext, ext, init, node, position, position, print, printBlock, printSubStmt, throwTypes, typeCheckEnter, typeCheckOverride, visit, visitChild, visitEdge, visitList
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface polyglot.ast.Term
exceptions, exceptions, reachable, reachable
 
Methods inherited from interface polyglot.ast.Node
childExpectedType, del, del, dump, ext, ext, ext, ext, position, position, visit, visitChild, visitEdge, visitList
 
Methods inherited from interface polyglot.ast.JL
init, node
 
Methods inherited from interface polyglot.ast.NodeOps
addDecls, addMembers, addMembersEnter, buildTypes, buildTypesEnter, disambiguate, disambiguateEnter, enterScope, enterScope, exceptionCheck, exceptionCheckEnter, throwTypes, typeCheckEnter
 
Methods inherited from interface polyglot.util.Copy
copy
 

Field Detail

expr

protected Expr expr
Constructor Detail

Free_c

public Free_c(Position pos,
              Expr expr)
Method Detail

expr

public Expr expr()
Specified by:
expr in interface Free

expr

public Free expr(Expr expr)
Specified by:
expr in interface Free

reconstruct

public Free_c reconstruct(Expr expr)

visitChildren

public Node visitChildren(NodeVisitor v)
Description copied from interface: NodeOps
Visit the children of the node.

Specified by:
visitChildren in interface NodeOps
Overrides:
visitChildren in class Node_c
Parameters:
v - The visitor that will traverse/rewrite the AST.
Returns:
A new AST if a change was made, or this.

typeCheck

public Node typeCheck(TypeChecker tc)
               throws SemanticException
Description copied from interface: NodeOps
Type check the AST. This method is called by the leave() method of the visitor. The method should perform work that should be done after visiting the children of the node. The method may return this or a new copy of the node which will be installed as a child of the node's parent.

Specified by:
typeCheck in interface NodeOps
Overrides:
typeCheck in class Node_c
Parameters:
tc - The type checking visitor.
Throws:
SemanticException

prettyPrint

public void prettyPrint(CodeWriter w,
                        PrettyPrinter tr)
Description copied from class: Node_c
Pretty-print the AST using the given CodeWriter.

Specified by:
prettyPrint in interface NodeOps
Overrides:
prettyPrint in class Node_c
Parameters:
w - The code writer to which to write.
tr - The pretty printer. This is not a visitor.

translate

public void translate(CodeWriter w,
                      Translator tr)
Description copied from class: Node_c
Translate the AST using the given CodeWriter.

Specified by:
translate in interface NodeOps
Overrides:
translate in class Node_c
Parameters:
w - The code writer to which to write.
tr - The translation pass. This is not a visitor.

toString

public java.lang.String toString()
Overrides:
toString in class Node_c

entry

public Term entry()
Description copied from class: Term_c
Return the first (sub)term performed when evaluating this term.

Specified by:
entry in interface Term
Specified by:
entry in class Term_c

acceptCFG

public java.util.List acceptCFG(CFGBuilder v,
                                java.util.List succs)
Description copied from class: Term_c
Visit this term in evaluation order.

Specified by:
acceptCFG in interface Term
Specified by:
acceptCFG in class Term_c