net.sourceforge.htmlunit.corejs.javascript.ast
Class EmptyExpression

java.lang.Object
  net.sourceforge.htmlunit.corejs.javascript.Node
      net.sourceforge.htmlunit.corejs.javascript.ast.AstNode
          net.sourceforge.htmlunit.corejs.javascript.ast.EmptyExpression

All Implemented Interfaces:

java.lang.Comparable<AstNode>, java.lang.Iterable<Node>

public class EmptyExpression
extends AstNode

AST node for an empty expression. Node type is Token.EMPTY.

To create an empty statement, wrap it with an ExpressionStatement.

Nested Class Summary

Nested classes/interfaces inherited from class net.sourceforge.htmlunit.corejs.javascript.ast.AstNode

AstNode.DebugPrintVisitor, AstNode.PositionComparator

Nested classes/interfaces inherited from class net.sourceforge.htmlunit.corejs.javascript.Node

Node.NodeIterator

Field Summary

Fields inherited from class net.sourceforge.htmlunit.corejs.javascript.ast.AstNode

length, parent, position

Fields inherited from class net.sourceforge.htmlunit.corejs.javascript.Node

ATTRIBUTE_FLAG, BOTH, CASEARRAY_PROP, CATCH_SCOPE_PROP, CONTROL_BLOCK_PROP, DECR_FLAG, DESCENDANTS_FLAG, DESTRUCTURING_ARRAY_LENGTH, DESTRUCTURING_NAMES, DESTRUCTURING_PARAMS, DESTRUCTURING_SHORTHAND, DIRECTCALL_PROP, END_DROPS_OFF, END_RETURNS, END_RETURNS_VALUE, END_UNREACHED, END_YIELDS, EXPRESSION_CLOSURE_PROP, first, FUNCTION_PROP, GENERATOR_END_PROP, INCRDECR_PROP, ISNUMBER_PROP, JSDOC_PROP, LABEL_ID_PROP, last, LAST_PROP, LEFT, lineno, LOCAL_BLOCK_PROP, LOCAL_PROP, MEMBER_TYPE_PROP, NAME_PROP, next, NON_SPECIALCALL, OBJECT_IDS_PROP, PARENTHESIZED_PROP, POST_FLAG, PROPERTY_FLAG, propListHead, REGEXP_PROP, RIGHT, SKIP_INDEXES_PROP, SPECIALCALL_EVAL, SPECIALCALL_PROP, SPECIALCALL_WITH, TARGETBLOCK_PROP, type, VARIABLE_PROP

Constructor Summary

EmptyExpression()

EmptyExpression(int pos)

EmptyExpression(int pos, int len)

Method Summary

java.lang.String	toSource(int depth) Emits source code for this node.
void	visit(NodeVisitor v) Visits this node.

Methods inherited from class net.sourceforge.htmlunit.corejs.javascript.ast.AstNode

addChild, assertNotNull, codeBug, compareTo, debugPrint, depth, getAbsolutePosition, getAstRoot, getEnclosingFunction, getEnclosingScope, getLength, getLineno, getParent, getPosition, hasSideEffects, makeIndent, operatorToString, printList, setBounds, setLength, setParent, setPosition, setRelative, shortName, toSource

Methods inherited from class net.sourceforge.htmlunit.corejs.javascript.Node

addChildAfter, addChildBefore, addChildrenToBack, addChildrenToFront, addChildToBack, addChildToFront, getChildBefore, getDouble, getExistingIntProp, getFirstChild, getIntProp, getJsDoc, getJsDocNode, getLastChild, getLastSibling, getNext, getProp, getScope, getString, getType, hasChildren, hasConsistentReturnUsage, iterator, labelId, labelId, newNumber, newString, newString, newTarget, putIntProp, putProp, removeChild, removeChildren, removeProp, replaceChild, replaceChildAfter, resetTargets, setDouble, setJsDocNode, setLineno, setScope, setString, setType, toString, toStringTree

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyExpression

public EmptyExpression()

EmptyExpression

public EmptyExpression(int pos)

EmptyExpression

public EmptyExpression(int pos,
                       int len)

Method Detail

toSource

public java.lang.String toSource(int depth)

Description copied from class: AstNode

Emits source code for this node. Callee is responsible for calling this function recursively on children, incrementing indent as appropriate.

Note: if the parser was in error-recovery mode, some AST nodes may have null children that are expected to be non-null when no errors are present. In this situation, the behavior of the toSource method is undefined: toSource implementations may assume that the AST node is error-free, since it is intended to be invoked only at runtime after a successful parse.

Specified by:

toSource in class AstNode

Parameters:

depth - the current recursion depth, typically beginning at 0 when called on the root node.

visit

public void visit(NodeVisitor v)

Visits this node. There are no children.

Specified by:

visit in class AstNode

Parameters:

v - the object to call with this node and its children