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

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

All Implemented Interfaces:

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

Direct Known Subclasses:

BreakStatement, ContinueStatement, Label, Scope, SwitchStatement

public class Jump
extends AstNode

Used for code generation. During codegen, the AST is transformed into an Intermediate Representation (IR) in which loops, ifs, switches and other control-flow statements are rewritten as labeled jumps. If the parser is set to IDE-mode, the resulting AST will not contain any instances of this class.

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

Node

target

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

Jump()

Jump(int nodeType)

Jump(int type, int lineno)

Jump(int type, Node child)

Jump(int type, Node child, int lineno)

Method Summary

Node	getContinue()
Node	getDefault()
Node	getFinally()
Jump	getJumpStatement()
Jump	getLoop()
void	setContinue(Node continueTarget)
void	setDefault(Node defaultTarget)
void	setFinally(Node finallyTarget)
void	setJumpStatement(Jump jumpStatement)
void	setLoop(Jump loop)
java.lang.String	toSource(int depth) Emits source code for this node.
void	visit(NodeVisitor visitor) Jumps are only used directly during code generation, and do not support this interface.

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

Field Detail

target

public Node target

Constructor Detail

Jump

public Jump()

Jump

public Jump(int nodeType)

Jump

public Jump(int type,
            int lineno)

Jump

public Jump(int type,
            Node child)

Jump

public Jump(int type,
            Node child,
            int lineno)

Method Detail

getJumpStatement

public Jump getJumpStatement()

setJumpStatement

public void setJumpStatement(Jump jumpStatement)

getDefault

public Node getDefault()

setDefault

public void setDefault(Node defaultTarget)

getFinally

public Node getFinally()

setFinally

public void setFinally(Node finallyTarget)

getLoop

public Jump getLoop()

setLoop

public void setLoop(Jump loop)

getContinue

public Node getContinue()

setContinue

public void setContinue(Node continueTarget)

visit

public void visit(NodeVisitor visitor)

Jumps are only used directly during code generation, and do not support this interface.

Specified by:

visit in class AstNode

Parameters:

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

Throws:

java.lang.UnsupportedOperationException

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.