polyglot.ext.jl.ast
Class For_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.jl.ast.Loop_c
                  extended by polyglot.ext.jl.ast.For_c
All Implemented Interfaces:
java.lang.Cloneable, CompoundStmt, For, JL, Loop, Node, NodeOps, Stmt, Term, Copy

public class For_c
extends Loop_c
implements For

An immutable representation of a Java language for statement. Contains a statement to be executed and an expression to be tested indicating whether to reexecute the statement.


Field Summary
protected  Stmt body
           
protected  Expr cond
           
protected  java.util.List inits
           
protected  java.util.List iters
           
 
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
For_c(Position pos, java.util.List inits, Expr cond, java.util.List iters, Stmt body)
           
 
Method Summary
 java.util.List acceptCFG(CFGBuilder v, java.util.List succs)
          Visit this term in evaluation order.
 Stmt body()
          Loop body
 For body(Stmt body)
          Set the body of the statement.
 Type childExpectedType(Expr child, AscriptionVisitor av)
          Get the expected type of a child expression of this.
 Expr cond()
          Loop condition
 For cond(Expr cond)
          Set the conditional of the statement.
 Term continueTarget()
          Target of a continue statement in the loop body.
 Context enterScope(Context c)
          Push a new scope upon entering this node, and add any declarations to the context that should be in scope when visiting children of this node.
 Term entry()
          Return the first (sub)term performed when evaluating this term.
 java.util.List inits()
          List of initialization statements
 For inits(java.util.List inits)
          Set the inits of the statement.
 java.util.List iters()
          List of iterator expressions.
 For iters(java.util.List iters)
          Set the iterator expressions of the statement.
 void prettyPrint(CodeWriter w, PrettyPrinter tr)
          Write the statement to an output file.
protected  For_c reconstruct(java.util.List inits, Expr cond, java.util.List iters, Stmt body)
          Reconstruct the statement.
 java.lang.String toString()
           
 Node typeCheck(TypeChecker tc)
          Type check the statement.
 Node visitChildren(NodeVisitor v)
          Visit the children of the statement.
 
Methods inherited from class polyglot.ext.jl.ast.Loop_c
condIsConstant, condIsConstantTrue
 
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, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, dump, enterScope, exceptionCheckEnter, exceptionCheckOverride, ext, ext, ext, ext, init, node, position, position, print, printBlock, printSubStmt, throwTypes, translate, 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.Loop
condIsConstant, condIsConstantTrue
 
Methods inherited from interface polyglot.ast.Term
exceptions, exceptions, reachable, reachable
 
Methods inherited from interface polyglot.ast.Node
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, exceptionCheck, exceptionCheckEnter, throwTypes, translate, typeCheckEnter
 
Methods inherited from interface polyglot.util.Copy
copy
 

Field Detail

inits

protected java.util.List inits

cond

protected Expr cond

iters

protected java.util.List iters

body

protected Stmt body
Constructor Detail

For_c

public For_c(Position pos,
             java.util.List inits,
             Expr cond,
             java.util.List iters,
             Stmt body)
Method Detail

inits

public java.util.List inits()
List of initialization statements

Specified by:
inits in interface For
Returns:
A list of ForInit.

inits

public For inits(java.util.List inits)
Set the inits of the statement.

Specified by:
inits in interface For
Parameters:
inits - A list of ForInit.

cond

public Expr cond()
Loop condition

Specified by:
cond in interface Loop

cond

public For cond(Expr cond)
Set the conditional of the statement.

Specified by:
cond in interface For

iters

public java.util.List iters()
List of iterator expressions.

Specified by:
iters in interface For
Returns:
A list of ForUpdate.

iters

public For iters(java.util.List iters)
Set the iterator expressions of the statement.

Specified by:
iters in interface For
Parameters:
iters - A list of ForUpdate.

body

public Stmt body()
Loop body

Specified by:
body in interface Loop

body

public For body(Stmt body)
Set the body of the statement.

Specified by:
body in interface For

reconstruct

protected For_c reconstruct(java.util.List inits,
                            Expr cond,
                            java.util.List iters,
                            Stmt body)
Reconstruct the statement.


visitChildren

public Node visitChildren(NodeVisitor v)
Visit the children of the statement.

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.

enterScope

public Context enterScope(Context c)
Description copied from class: Node_c
Push a new scope upon entering this node, and add any declarations to the context that should be in scope when visiting children of this node.

Specified by:
enterScope in interface NodeOps
Overrides:
enterScope in class Node_c
Parameters:
c - the current Context
Returns:
the Context to be used for visiting this node.

typeCheck

public Node typeCheck(TypeChecker tc)
               throws SemanticException
Type check the statement.

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

childExpectedType

public Type childExpectedType(Expr child,
                              AscriptionVisitor av)
Description copied from interface: Node
Get the expected type of a child expression of this. The expected type is determined by the context in that the child occurs (e.g., for x = e, the expected type of e is the declared type of x. The expected type should impose the least constraints on the child's type that are allowed by the parent node.

Specified by:
childExpectedType in interface Node
Overrides:
childExpectedType in class Node_c
Parameters:
child - A child expression of this node.
av - An ascription visitor.
Returns:
The expected type of child.

prettyPrint

public void prettyPrint(CodeWriter w,
                        PrettyPrinter tr)
Write the statement to an output file.

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.

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

continueTarget

public Term continueTarget()
Description copied from interface: Loop
Target of a continue statement in the loop body.

Specified by:
continueTarget in interface Loop