polyglot.ast
Class ArrayInit_c

java.lang.Object
  extended by polyglot.ast.Node_c
      extended by polyglot.ast.Term_c
          extended by polyglot.ast.Expr_c
              extended by polyglot.ast.ArrayInit_c
All Implemented Interfaces:
java.lang.Cloneable, ArrayInit, Expr, JL, Node, NodeOps, Prefix, Receiver, Term, Typed, Copy

public class ArrayInit_c
extends Expr_c
implements ArrayInit

An ArrayInit is an immutable representation of an array initializer, such as { 3, 1, { 4, 1, 5 } }. Note that the elements of these array may be expressions of any type (e.g., Call).


Field Summary
protected  java.util.List elements
           
 
Fields inherited from class polyglot.ast.Expr_c
type
 
Fields inherited from class polyglot.ast.Term_c
exceptions, reachable
 
Fields inherited from class polyglot.ast.Node_c
del, error, ext, position
 
Fields inherited from interface polyglot.ast.Term
ENTRY, EXIT
 
Constructor Summary
ArrayInit_c(Position pos, java.util.List elements)
           
 
Method Summary
 java.util.List acceptCFG(CFGBuilder v, java.util.List succs)
          Visit this term in evaluation order.
 Type childExpectedType(Expr child, AscriptionVisitor av)
          Get the expected type of a child expression of this.
 Node copy(NodeFactory nf)
          Produce a copy of this node using the given NodeFactory.
 java.util.List elements()
          Get the elements of the initializer.
 ArrayInit elements(java.util.List elements)
          Set the elements of the initializer.
 Term firstChild()
          Return the first direct subterm performed when evaluating this term.
 void prettyPrint(CodeWriter w, PrettyPrinter tr)
          Write the initializer to an output file.
protected  ArrayInit_c reconstruct(java.util.List elements)
          Reconstruct the initializer.
 java.lang.String toString()
           
 Node typeCheck(TypeChecker tc)
          Type check the initializer.
 void typeCheckElements(Type lhsType)
          Type check the individual elements of the array initializer against the left-hand-side type.
 Node visitChildren(NodeVisitor v)
          Visit the children of the initializer.
 
Methods inherited from class polyglot.ast.Expr_c
booleanValue, buildTypes, byteValue, charValue, constantValue, constantValueSet, doubleValue, dump, floatValue, intValue, isConstant, isTypeChecked, longValue, precedence, printSubExpr, printSubExpr, shortValue, stringValue, type, type
 
Methods inherited from class polyglot.ast.Term_c
exceptionCheck, exceptions, exceptions, listChild, reachable, reachable
 
Methods inherited from class polyglot.ast.Node_c
addDecls, buildTypesEnter, checkConstants, copy, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, dump, dump, enterChildScope, enterScope, error, error, exceptionCheckEnter, ext, ext, ext, ext, init, isDisambiguated, node, position, position, prettyPrint, prettyPrint, 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.Expr
constantValue, constantValueSet, isConstant, precedence, printSubExpr, printSubExpr, type
 
Methods inherited from interface polyglot.ast.Node
del, del, dump, error, error, ext, ext, ext, ext, isDisambiguated, isTypeChecked, position, position, visit, visitChild, visitEdge, visitList
 
Methods inherited from interface polyglot.ast.JL
init, node
 
Methods inherited from interface polyglot.ast.NodeOps
addDecls, buildTypes, buildTypesEnter, checkConstants, copy, disambiguate, disambiguateEnter, disambiguateOverride, dump, dump, enterChildScope, enterScope, exceptionCheck, exceptionCheckEnter, prettyPrint, prettyPrint, throwTypes, translate, typeCheckEnter, typeCheckOverride
 
Methods inherited from interface polyglot.util.Copy
copy
 
Methods inherited from interface polyglot.ast.Typed
type
 
Methods inherited from interface polyglot.ast.Term
exceptions, exceptions, reachable, reachable
 

Field Detail

elements

protected java.util.List elements
Constructor Detail

ArrayInit_c

public ArrayInit_c(Position pos,
                   java.util.List elements)
Method Detail

elements

public java.util.List elements()
Get the elements of the initializer.

Specified by:
elements in interface ArrayInit
Returns:
A list of Expr.

elements

public ArrayInit elements(java.util.List elements)
Set the elements of the initializer.

Specified by:
elements in interface ArrayInit
Parameters:
elements - A list of Expr.

reconstruct

protected ArrayInit_c reconstruct(java.util.List elements)
Reconstruct the initializer.


visitChildren

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

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
Type check the initializer.

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.

typeCheckElements

public void typeCheckElements(Type lhsType)
                       throws SemanticException
Description copied from interface: ArrayInit
Type check the individual elements of the array initializer against the left-hand-side type. Each element is checked to see if it can be assigned to a variable of type lhsType.

Specified by:
typeCheckElements in interface ArrayInit
Parameters:
lhsType - Type to compare against.
Throws:
SemanticException - if there is a type error.

toString

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

prettyPrint

public void prettyPrint(CodeWriter w,
                        PrettyPrinter tr)
Write the initializer 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.

firstChild

public Term firstChild()
Description copied from interface: Term
Return the first direct subterm performed when evaluating this term. If this term has no subterms, this should return null. This method is similar to the deprecated entry(), but it should *not* recursively drill down to the innermost subterm. The direct child visited first in this term's dataflow should be returned.

Specified by:
firstChild in interface Term

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

copy

public Node copy(NodeFactory nf)
Description copied from interface: NodeOps
Produce a copy of this node using the given NodeFactory.

Specified by:
copy in interface NodeOps
Overrides:
copy in class Node_c