org.jruby.ast

Class Node

java.lang.Object

org.jruby.ast.Node

All Implemented Interfaces:

ISourcePositionHolder

Direct Known Subclasses:

AliasNode, AndNode, ArgAuxillaryNode, ArgsCatNode, ArgsNode, ArgsPushNode, ArgumentNode, AssignableNode, AttrAssignNode, BackRefNode, BeginNode, BignumNode, BlockArg18Node, BlockArgNode, BlockPassNode, BreakNode, CallNode, CaseNode, ClassNode, ClassVarNode, Colon3Node, ConstNode, DefinedNode, DotNode, DVarNode, EncodingNode, EnsureNode, EvStrNode, FalseNode, FCallNode, FixnumNode, FlipNode, FloatNode, GlobalVarNode, HashNode, IfNode, InstVarNode, IterNode, KeywordArgNode, ListNode, LiteralNode, LocalVarNode, Match2Node, Match3Node, MatchNode, MethodDefNode, ModuleNode, NewlineNode, NextNode, NilNode, NotNode, NthRefNode, OpAsgnAndNode, OpAsgnNode, OpAsgnOrNode, OpElementAsgnNode, OptArgNode, OrNode, RedoNode, RegexpNode, RescueBodyNode, RescueNode, RetryNode, ReturnNode, RootNode, SClassNode, SelfNode, SplatNode, StarNode, StrNode, SuperNode, SValueNode, SymbolNode, ToAryNode, TrueNode, UndefNode, UntilNode, VAliasNode, VCallNode, WhenNode, WhileNode, XStrNode, YieldNode, ZArrayNode, ZeroArgNode, ZSuperNode

public abstract class Node
extends Object
implements ISourcePositionHolder

Base class for all Nodes in the AST

Constructor Summary

Constructors

Constructor and Description
Node(ISourcePosition position)

Method Summary

Methods

Modifier and Type	Method and Description
abstract Object	accept(NodeVisitor visitor)
IRubyObject	assign(Ruby runtime, ThreadContext context, IRubyObject self, IRubyObject value, Block block, boolean checkArity)
abstract List<Node>	childNodes()
protected static List<Node>	createList(Node... nodes)
protected static List<Node>	createList(Node node)
protected static List<Node>	createList(Node node1, Node node2)
protected static List<Node>	createList(Node node1, Node node2, Node node3)
RubyString	definition(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock)
protected String	getNodeName()
abstract NodeType	getNodeType()
ISourcePosition	getPosition() Location of this node within the source
IRubyObject	interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock)
boolean	isNil() Whether the node evaluates to nil and has no side effects.
void	setPosition(ISourcePosition position)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Node

public Node(ISourcePosition position)

Method Detail

getPosition

public ISourcePosition getPosition()

Location of this node within the source

Specified by:

getPosition in interface ISourcePositionHolder

setPosition

public void setPosition(ISourcePosition position)

Specified by:

setPosition in interface ISourcePositionHolder

accept

public abstract Object accept(NodeVisitor visitor)

childNodes

public abstract List<Node> childNodes()

createList

protected static List<Node> createList(Node node)

createList

protected static List<Node> createList(Node node1,
                    Node node2)

createList

protected static List<Node> createList(Node node1,
                    Node node2,
                    Node node3)

createList

protected static List<Node> createList(Node... nodes)

toString

public String toString()

Overrides:

toString in class Object

getNodeName

protected String getNodeName()

interpret

public IRubyObject interpret(Ruby runtime,
                    ThreadContext context,
                    IRubyObject self,
                    Block aBlock)

assign

public IRubyObject assign(Ruby runtime,
                 ThreadContext context,
                 IRubyObject self,
                 IRubyObject value,
                 Block block,
                 boolean checkArity)

definition

public RubyString definition(Ruby runtime,
                    ThreadContext context,
                    IRubyObject self,
                    Block aBlock)

getNodeType

public abstract NodeType getNodeType()

Returns:

the nodeId

isNil

public boolean isNil()

Whether the node evaluates to nil and has no side effects.

Returns:

true if nil, false otherwise