coins.ir.hir
Class HirIteratorImpl

java.lang.Object
  coins.ir.hir.HirIteratorImpl

All Implemented Interfaces:

HirIterator

public class HirIteratorImpl

extends java.lang.Object

implements HirIterator

HirIteratorImpl class Traverse HIR node in depth first order.

Field Summary

protected int	fDbgLevel
protected int	fDebLevel
protected int	fNodeCount
protected java.util.ArrayList	fNodeList
protected java.util.Iterator	fNodeListIterator
protected int	fStmtCount
protected java.util.ArrayList	fStmtList
protected java.util.Iterator	fStmtListIterator
HirRoot	hirRoot
IoRoot	ioRoot

Constructor Summary

HirIteratorImpl(HirRoot pHirRoot, IR pSubtree, boolean pGoUpward)
HirIteratorImpl Create an itrerator that traverses nodes of HIR subtree.

Method Summary

HIR	getNextExecutableNode() next Get the node that refer/set data or change control flow directly.
Stmt	getNextStmt()
boolean	hasNext()
boolean	hasNextStmt()
HIR	next() next Get the next node and advance current point for iteration.
Stmt	nextStmt() nextStmt Get the next statement skipping other nodes that are not Stmt.
protected void	recordNodes(HIR pHir)

Methods inherited from class java.lang.Object

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

Field Detail

hirRoot

public final HirRoot hirRoot

ioRoot

public final IoRoot ioRoot

fDbgLevel

protected int fDbgLevel

fNodeList

protected java.util.ArrayList fNodeList

fStmtList

protected java.util.ArrayList fStmtList

fNodeCount

protected int fNodeCount

fStmtCount

protected int fStmtCount

fNodeListIterator

protected java.util.Iterator fNodeListIterator

fStmtListIterator

protected java.util.Iterator fStmtListIterator

fDebLevel

protected int fDebLevel

Constructor Detail

HirIteratorImpl

public HirIteratorImpl(HirRoot pHirRoot,
                       IR pSubtree,
                       boolean pGoUpward)

HirIteratorImpl Create an itrerator that traverses nodes of HIR subtree.

Parameters:

pSubtree - Subtree to be traversed.

pGoUpward - true if traverse of nodes positioned higher than the root of pSubtree is permitted. Normally this is false; true is used in BBlockNodeIterator.

Method Detail

next

public HIR next()

Description copied from interface: HirIterator

next Get the next node and advance current point for iteration. If the next node is IrList or HirList or ExpListExp, the elements of the list are traversed.

Specified by:

next in interface HirIterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface HirIterator

hasNextStmt

public boolean hasNextStmt()

Specified by:

hasNextStmt in interface HirIterator

getNextExecutableNode

public HIR getNextExecutableNode()

Description copied from interface: HirIterator

next Get the node that refer/set data or change control flow directly. If the next node is IrList or HirList, the elements of the list are traversed.

Specified by:

getNextExecutableNode in interface HirIterator

nextStmt

public Stmt nextStmt()

Description copied from interface: HirIterator

nextStmt Get the next statement skipping other nodes that are not Stmt. In compound statements, statements contained in the compound statements are get in depth-first order.

Specified by:

nextStmt in interface HirIterator

Returns:

the next statement.

getNextStmt

public Stmt getNextStmt()

Specified by:

getNextStmt in interface HirIterator

recordNodes

protected void recordNodes(HIR pHir)