polyglot.ast
Class ArrayInit_c

java.lang.Object
  polyglot.ast.Node_c
      polyglot.ast.Term_c
          polyglot.ast.Expr_c
              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