escjava.ast
Class AnOverview

java.lang.Object
  javafe.ast.ASTNode
      escjava.ast.AnOverview

All Implemented Interfaces:

java.lang.Cloneable

public abstract class AnOverview

extends ASTNode

The files in this package extend the AST classes defined in javafe.ast. The following diagram shows how the new classes related to the old classes in the class hierarchy:

 - ASTNode
    - VarInit ()
       - Expr ()
         + GCExpr
           + LabelExpr (Identifier label, Expr expr)
           + NaryExpr (int op, Identifier methodName, Expr* exprs)
           + QuantifiedExpr (GenericVarDecl* vars, Expr rangeExpr, Expr expr)
           + GeneralizedQuantifiedExpr (GenericVarDecl* vars, Expr expr)
                // Sum, Product, Max, Min
           + NumericalQuantifiedExpr (GenericVarDecl* vars, Expr expr)
                // NumOf
           + SubstExpr (GenericVarDecl var, Expr val, Expr target)
           + TypeExpr (Type type)
         + EverythingExpr ()
         + LockSetExpr ()
         + NotSpecifiedExpr ()
         + NothingExpr ()
         + StoreRefExpr(Expr,Expr)
         + NotModifiedExpr(Expr)
         + ResExpr ()
	   + SetCompExpr(Type type, Type typeBound, Identifier id, Expr e)
         + WildRefExpr (Expr expr)
         + GuardExpr (Expr expr)
         + DefPredLetExpr (DefPred* preds, Expr body)
         + DefPredApplExpr (Identifier predId, Expr* args)
	   + ArrayRangeRefExpr(Expr, Expr, Expr)
    - Type ()
      - PrimitiveType (tag)
        + EscPrimitiveType ()
    + GuardedCmd
      + SimpleCmd (int cmd) // Skip, Raise
      + ExprCmd (int cmd, Expr pred) // Assert, Assume
      + AssignCmd (VariableAccess v, Expr rhs)
        + GetsCmd ()
        + SubGetsCmd (Expr index)
        + SubSubGetsCmd (Expr index1, Expr index2)
        + RestoreFromCmd ()
      + VarInCmd (GenericVarDecl v*, GuardedCmd g)
      + DynInstCmd (String s, GuardedCmd g)
      + SeqCmd (GuardedCmd cmds*)
      + LoopCmd (Condition invariants*, DecreasesInfo decreases*,
                 LocalVarDecl skolemConstants*, Expr predicates*,
                 GenericVarDecl tempVars*, GuardedCmd guard, GuardedCmd body)
      + CmdCmdCmd (int cmd, GuardedCmd g1, GuardedCmd g2)// Try, Choose
      + Call (RoutineDecl rd, Expr* args, TypeDecl scope)
    - TypeDeclElem ()
       - TypeDeclElemPragma ()
         + ExprDeclPragma (Expr expr) // Axiom, ObjectInvariant
	   + GhostDeclPragma (GhostFieldDecl decl)
	   + ModelDeclPragma (ModelFieldDecl decl)
         + ModelTypePragma (TypeDecl decl)
         + NamedExprDeclPragma (Expr target, Expr expr)
         + IdExprDeclPragma (Id target, Expr expr)
         + ModelMethodDeclPragma (MethodDecl decl)
         + ModelConstructorPragma (ConstructorDecl decl)
         + StillDeferredDeclPragma (Identifier var)
         + DependsPragma (Expr* exprs) // Depends clause
    - Stmt ()
       - StmtPragma ()
         + SimpleStmtPragma () // Unreachable
         + ExprStmtPragma (Expr expr, Expr label) 
             // Assume, Assert, LoopInvariant, LoopPredicate
         + SetStmtPragma (Expr target, Expr value) 
         + SkolemConstantPragma (LocalVarDecl* decl)
    - ModifierPragma ()
         + SimpleModifierPragma () 
                   // Uninitialized, Monitored, NonNull, WritableDeferred,
                   // Helper, \Peer, \ReadOnly, \Rep,
                   // may_be_null, nullable_by_default, non_null_by_default, 
                   // obs_pure,
                   // code_java_math, code_safe_math, code_bigint_math,
                   // spec_java_math, spec_safe_math, spec_bigint_math
	   + NestedModifierPragma (ArrayList list)
         + ExprModifierPragma (Expr expr) 
                   // DefinedIf, Writable, Requires, Pre, Ensures, Post,
                   // AlsoEnsures, MonitoredBy, Constraint, InvariantFor, Space, 
                   // \Duration, \WorkingSpace,
                   // \java_math, \safe_math, \bigint_math
         + IdentifierModifierPramga (Identifier id)
                   // IsInitialized
         + ReachModifierPragma (Expr expr, Identifier id, StoreRefExpr)
                   // \Reach
	   + CondExprModifierPragma (Expr expr, Expr cond) 
                   // Modifies, AlsoModifiers, Assignable, Modifiable
         + ModifiesGroupPragma
                   // Group of Modifies, etc., pragmas from one spec case
         + MapsExprModifierPragma (Identifier id, Expr mapsexpr, Expr expr) 
		     // maps
         + VarExprModifierPragma (GenericVarDecl arg, Expr expr)
                   // Exsures, AlsoExsures, Signals, AlsoSignals
         + ModelProgramModifierPragma()
	   + VarDeclModifierPragma (LocalVarDecl decl)
    - LexicalPragma ()
      + NowarnPragma (Identifier* checks)
      + ImportPragma (ImportDecl decl)
      + RefinePragma (String filename)
    + Spec (MethodDecl md, Expr* targets, Hashtable preVarMap, 
            Condition* pre, Condition* post)
    + Condition (int label, Expr pred)
    + DefPred (Identifier predId, GenericVarDecl* args, Expr body)
    + DecreasesInfo (Expr f, VariableAccess fOld)
 

(Classes with a - next to them are defined in javafe.ast; classes with a + are defined in this package.

(P.S. Ignore the stuff that appears below; the only purpose of this class is to contain the above overview.)

Field Summary

Fields inherited from class javafe.ast.ASTNode

bogusField, dotCounter, dotId

Constructor Summary

protected

AnOverview()

Method Summary

abstract void	accept(Visitor v) Accept a visit from v.
abstract java.lang.Object	accept(VisitorArgResult v, java.lang.Object o)
void	check()
abstract java.lang.Object	childAt(int i) Return the first-but-ith child of a node.
abstract int	childCount() Return the number of children a node has.
abstract int	getTag() Return the tag of a node.
abstract java.lang.String	toString() Return a string representation of this.

Methods inherited from class javafe.ast.ASTNode

clone, clone, getDecorations, getEndLoc, getStartLoc, isInternal, setDecorations

Methods inherited from class java.lang.Object

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

Constructor Detail

AnOverview

protected AnOverview()

Method Detail

childCount

public abstract int childCount()

Return the number of children a node has.

Specified by:

childCount in class ASTNode

childAt

public abstract java.lang.Object childAt(int i)

Return the first-but-ith child of a node.

Specified by:

childAt in class ASTNode

getTag

public abstract int getTag()

Return the tag of a node.

Specified by:

getTag in class ASTNode

toString

public abstract java.lang.String toString()

Return a string representation of this. Meant for debugging use only, not for presentation.

Specified by:

toString in class ASTNode

accept

public abstract void accept(Visitor v)

Accept a visit from v. This method simply calls the method of v corresponding to the allocated type of this, passing this as the argument. See the design patterns book.

Specified by:

accept in class ASTNode

accept

public abstract java.lang.Object accept(VisitorArgResult v,
                                        java.lang.Object o)

Specified by:

accept in class ASTNode

check

public void check()

Overrides:

check in class ASTNode