DtIfStmt Class Reference

8 bytes total More...

Inheritance diagram for DtIfStmt:

Public Member Functions
	DtIfStmt (DtReaderWriterRegistry *parentRegistry=NULL)
	default constructor DtIfStmt();
	DtIfStmt (const DtIfStmt &orig, DtReaderWriterRegistry *parentRegistry=NULL)
	copy constructor
virtual	~DtIfStmt ()
	destructor
DtIfStmt &	operator= (const DtIfStmt &orig)
	assignment operator
virtual DtSimStatement *	clone (DtReaderWriterRegistry *parentRegistry=NULL) const
	virtual copy constructor
virtual int	type () const
	Returns DtIfStatementType (defined in simStmtTypes.h)
virtual void	execute (DtPlan &planContext)
	Execute the current statement and make any changes to the Plan state as appropriate.
virtual void	step (DtPlan &planContext)
	Steps to the next statement by setting the plan context’s current statement, based on the result of the test.
virtual int	subBlockCount () const
	Get the number of blocks nested inside this statement.
virtual DtSimBlock *	subBlock (int index)
	Get the a pointer to each particular block nested inside this statement.
virtual DtString	stringRep (int subBlockIndex=DtSR_STMT) const
	Get a readable string representation of this If statement.
virtual void	exitFromIf (DtPlan &planContext)
	The exitFromIf function is called when one of the the "If" blocks is complete, it just steps to the next statement after the If.
virtual const DtSimCondExpr *	condExpr () const
	Get/set the conditional expression.
virtual void	setCondExpr (DtSimCondExpr *arg)
virtual DtIfBlock *	thenBlock () const
	Get/set the then block.
virtual void	setThenBlock (DtIfBlock *arg)
virtual DtIfBlock *	elseBlock () const
	Get/set the else block.
virtual void	setElseBlock (DtIfBlock *arg)
virtual int	netRepSize () const
	Returns the size of the full network representation padded to an 8-byte boundary.
virtual bool	setFromNet (const char *contentBuffer, unsigned contentSize)
	Fills in the request from the network buffer.
virtual bool	setToNet ()
	Fills in the network buffer (created by base class sim statement) with the if statement contents.
Public Member Functions inherited from DtSimStatement
	DtSimStatement ()
	Default constructor.
	DtSimStatement (const DtString &name, DtReaderWriterRegistry *parentRegistry=NULL)
	Usual constructor NOTE: "name" should be the statement type string.
	DtSimStatement (const DtSimStatement &orig, DtReaderWriterRegistry *parentRegistry=NULL)
	Copy constructor.
virtual	~DtSimStatement ()
	Destructor.
virtual bool	init ()
	Base class init does nothing, but this will be called by create, in case any other deriving class needs to do virtual allocation.
DtSimStatement &	operator= (const DtSimStatement &orig)
	Assignment operator (protected because this is an abstract base class).
virtual bool	validate ()
	Checks the statement for validity, and potentially fixes the statement to be valid.
virtual bool	translateIndex (DtStmtIndex &index)
	Translate an old statement index pointer to point to a statement in the current Plan.
virtual void	translateIndices (const DtList &indices)
	Same as translateIndex, except it operates on a DtList of DtStmtIndex's, and doesn't return a value.
DtSimStatement *	nextStmt () const
	Return next (previous) statements in the block, or NULL if hit the end (beginning) of the list.
DtSimStatement *	prevStmt () const
virtual DtStmtIdType	statementId () const
	Statement Id accessors.
virtual void	setStatementId (DtStmtIdType arg)
virtual DtSimBlock *	parentBlock () const
	The parent statement Block.
virtual void	setParentBlock (DtSimBlock *arg)
virtual DtRecursiveSimStatementIterator *	spawnRecursiveIterator () const
	Spawns an iterator that iterates over the subblocks in this statement, and all their children, sub children, etc.
virtual DtSimStatement *	lookupStatement (DtStmtIdType statementId)
	If statementId matches our statement, returns a pointer to us.
virtual char *	netRep ()
virtual bool	isSameStatement (DtSimStatement *)
	Returns true if statements are equivalent. Will not check statementId.
Public Member Functions inherited from DtRwListedObj
	DtRwListedObj ()
	Default constructor.
	DtRwListedObj (const DtString &name, DtReaderWriterRegistry *parentRegistry=NULL)
	Real constructor.
	DtRwListedObj (const DtSymbolString &name, DtReaderWriterRegistry *parentRegistry=NULL)
	DtRwListedObj (const DtRwListedObj &orig)
	Copy constructor.
virtual	~DtRwListedObj ()
	Destructor.
DtRwListedObj &	operator= (const DtRwListedObj &orig)
	Assignment operator.
DtRwListedObj *	next () const
	Return next (previous) elements on the list, or NULL if hit the end (beginning) of the list.
DtRwListedObj *	prev () const
DtRwListedObj *	wrapNext () const
	Return next (previous) elements on the list, but wrap to the beginning (end) of the list when you hit the end (beginning).
DtRwListedObj *	wrapPrev () const
virtual const char *	readerWriterType () const
	Used to supply a string type that this reader writer type is.
Public Member Functions inherited from DtReaderWriter
	DtReaderWriter ()
	default constructor
	DtReaderWriter (const DtString &name, DtReaderWriterRegistry *parentRegistry=NULL, bool readonly=false)
	real constructor Setting the readonly flag prevents object from writing itself to the stream.
	DtReaderWriter (const DtSymbolString &name, DtReaderWriterRegistry *parentRegistry=NULL, bool readonly=false)
	DtReaderWriter (const DtString &name, const DtReaderWriter &orig, DtReaderWriterRegistry *parentRegistry=NULL)
	copy constructor
	DtReaderWriter (const DtSymbolString &name, const DtReaderWriter &orig, DtReaderWriterRegistry *parentRegistry=NULL)
const DtReaderWriter &	operator= (const DtReaderWriter &orig)
	assignment operator
virtual	~DtReaderWriter ()
	destructor
virtual void	putSelf (FILE *fp, int indentLevel=0, bool writeUnspecified=false, const DtFilename &path=DtFilename::nullFilename())
	Top level call to write itself to file.
virtual void	getSelf (DtlObjPtr args, const DtFilename &searchPath=DtFilename::nullFilename(), const DtVariableBindingsList &variableBindings=nullVariableReference())
	Top level to read itself from an input stream.
virtual void	writeSelf (FILE *fp, int indentLevel=0, bool writeUnspecified=false, const DtFilename &path=DtFilename::nullFilename())
	Called from putSelf, calls myRegistry.putSelf which in turn calls putSelf on each reader/writer in the registry.
virtual DtSymbolString	name () const
	Accessor for name of this readable/writable object.
virtual void	addAlias (const DtSymbolString &alias)
	Add an alias as an alternative name for this object.
virtual bool	hasAlias (const DtSymbolString &alias)
virtual const aliasContainer &	aliases () const
virtual void	setReadonly (bool flag)
	Set read-only flag.
virtual bool	isReadonly () const
virtual bool	variableIsBound () const
virtual void	unbindVariable ()
	Sets the myVariableIsBound flag to false.
virtual void	setName (const DtString &)
	Set the name of the object.
virtual DtString	prettyPrint () const
	Routine to return a human readable form of the reader/writer variable.
virtual void	bindVariables (DtVariableBindingsList variableBindings)
	Runs a variable binding pass on this reader writer and any of its children.
virtual std::list < DtVariableNameType >	unboundVariables () const
bool	invalid () const
virtual bool	hasChild (const DtReaderWriter *p) const
	Returns true if this variable has a child p in it's chain.
virtual void	setValueSpecified (bool specified, bool recurse=false)
	The specified flags are used for optional values.
virtual bool	valueSpecified () const
	The specified flags are used for optional values.
virtual bool	isVariableReference () const
	Specifies whether or not this reader writer is really a variable that is specified elsewhere.
virtual void	setIsVariableReference (bool value)
virtual DtSymbolString	variableName () const
	The variable name, if this object is a variable reference.
virtual void	setVariableName (const DtSymbolString variableName)
	The variable name, if this object is a variable reference.
const DtReaderWriterRegistry &	registry () const
	Collection of child DtReaderWriter nodes owned by this object.
DtReaderWriterRegistry &	registry ()
	Collection of child DtReaderWriter nodes owned by this object.

Static Public Member Functions
static DtSimStatement *	creator (DtReaderWriterRegistry *parentRegistry=NULL)
Static Public Member Functions inherited from DtSimStatement
static DtStmtIdType	generateNewStmtId ()
static DtSimStatement *	createStatement (DtlObjPtr mtlStream, DtReaderWriterRegistry *parentRegistry=NULL)
	Static functions.
static DtSimStatement *	createStatement (int statementType, DtReaderWriterRegistry *parentRegistry=NULL)
static void	addStatementCreatorFcn (const DtString &type, int intType, DtStatementCreatorFcn fcn)
	Decodes a legacy stealth statement (VRF 3.9 and previous) and returns the proper statement for the current version.
static void	setFactory (DtStatementFactory *factory)
static DtStatementFactory *	factory ()
static bool	getStatementNameFromStatementType (int statementType, DtString &statementName)
static bool	getStatementTypeFromStatementName (const DtString &statementName, int &statementType)
static bool	addStatementTypeMapping (const DtString &statementName, int taskType)
static bool	removeStatementTypeMapping (const DtString &statementName, int statementType)

Protected Member Functions
virtual bool	compare (DtSimStatement *rhs)
	Called from isSameStatement.
Protected Member Functions inherited from DtSimStatement
virtual char *	createNetworkBuffer ()

Protected Attributes
DtRwCondExpr	myCondExpr
bool	myResult
	myResult temporarily holds the results of an evaluation of myCondExpr between the "execute" call and the "step" call.
DtIfBlock *	myThenBlock
DtIfBlock *	myElseBlock
Protected Attributes inherited from DtSimStatement
DtStmtIdType	myStatementId
	A semi-unique Id value that helps trace the original identity of this statement if/when it gets copied.
DtSimBlock *	myParentBlock
	The containing DtSimBlock object (if any).
char *	myNetRep
Protected Attributes inherited from DtRwListedObj
DtList *	myList
DtListItem *	myItem
Protected Attributes inherited from DtReaderWriter
const DtSymbolString	myName
DtReaderWriterRegistry	myRegistry
bool	myValueSpecified
bool	myReadOnlyFlag
bool	myIsVariableReference
DtSymbolString	myVariableName
bool	myVariableIsBound
aliasContainer	myAliases
	Container for the aliases which represent alternative names for the object.
bool	myInvalid
	Set to true if there is a problem reading this item.

Additional Inherited Members
Public Types inherited from DtReaderWriter
typedef std::vector < DtSymbolString >	aliasContainer
typedef std::vector < DtSymbolString >::iterator	aliasIter
typedef std::vector < DtSymbolString > ::const_iterator	aliasConstIter
typedef std::pair < DtSymbolString, DtString >	DtVariableNameType
Static Public Attributes inherited from DtSimStatement
static const int	DtSR_STMT = -1
	A constant for use as the subBlockIndex argument to stringRep().
Static Protected Attributes inherited from DtSimStatement
static DtStatementFactory *	myFactory
	Factory for this class.
static DtStringIntMapper	theStatementNameMapper

Detailed Description

8 bytes total

class DtIfStmt:

Instances of DtIfStmt represent a conditional ("If" statement). Currently, they can only have one condition, and one or two sub-Blocks ("Then" and "Else"), but in the future they might be extended to support multiple "ElseIf" conditions and sub-blocks as well.

Constructor & Destructor Documentation

DtIfStmt::DtIfStmt

(

DtReaderWriterRegistry *

parentRegistry = NULL

)

default constructor DtIfStmt();

Usual constructor

DtIfStmt::DtIfStmt	(	const DtIfStmt &	orig,
		DtReaderWriterRegistry *	parentRegistry = NULL
	)

copy constructor

virtual DtIfStmt::~DtIfStmt ( )

virtual

destructor

Member Function Documentation

DtIfStmt& DtIfStmt::operator=

(

const DtIfStmt &

orig

)

assignment operator

virtual DtSimStatement* DtIfStmt::clone ( DtReaderWriterRegistry *  parentRegistry = NULL ) const

virtual

virtual copy constructor

Implements DtSimStatement.

virtual int DtIfStmt::type ( ) const

virtual

Returns DtIfStatementType (defined in simStmtTypes.h)

Implements DtSimStatement.

virtual void DtIfStmt::execute ( DtPlan &  planContext )

virtual

Execute the current statement and make any changes to the Plan state as appropriate.

Implements DtSimStatement.

virtual void DtIfStmt::step ( DtPlan &  planContext )

virtual

Steps to the next statement by setting the plan context’s current statement, based on the result of the test.

Reimplemented from DtSimStatement.

virtual int DtIfStmt::subBlockCount ( ) const

virtual

Get the number of blocks nested inside this statement.

Reimplemented from DtSimStatement.

virtual DtSimBlock* DtIfStmt::subBlock ( int  index )

virtual

Get the a pointer to each particular block nested inside this statement.

Reimplemented from DtSimStatement.

virtual DtString DtIfStmt::stringRep ( int  subBlockIndex = DtSR_STMT ) const

virtual

Get a readable string representation of this If statement.

The subBlockIndex argument indicates which stringRep to get as a prefix for a given sub-block. For an If statement, the first (0) sub-block's prefix is the "if (...) then" part, if a second sub-block exists, its prefix is the "else" part, and if a subBlockIndex value of DtSimStatement::DtSR_STMT is given, the "endif" part is returned.

See the documentation for DtSimStatement::stringRep for more information.

Implements DtSimStatement.

virtual void DtIfStmt::exitFromIf ( DtPlan &  planContext )

virtual

The exitFromIf function is called when one of the the "If" blocks is complete, it just steps to the next statement after the If.

virtual const DtSimCondExpr* DtIfStmt::condExpr ( ) const

virtual

Get/set the conditional expression.

virtual void DtIfStmt::setCondExpr ( DtSimCondExpr *  arg )

virtual

virtual DtIfBlock* DtIfStmt::thenBlock ( ) const

virtual

Get/set the then block.

virtual void DtIfStmt::setThenBlock ( DtIfBlock *  arg )

virtual

virtual DtIfBlock* DtIfStmt::elseBlock ( ) const

virtual

Get/set the else block.

virtual void DtIfStmt::setElseBlock ( DtIfBlock *  arg )

virtual

virtual int DtIfStmt::netRepSize ( ) const

virtual

Returns the size of the full network representation padded to an 8-byte boundary.

Size is computed from the following:

sizeof(DtNetSimStatement) + sizeof(DtNetIfStatement) + <myThenBlock->firstStmt()->netRepSize()> . . . <myThenBlock->lastStmt()->netRepSize()> <myElseBlock->firstStmt()->netRepSize()> . . . <myElseBlock->lastStmt()->netRepSize()>

Reimplemented from DtSimStatement.

virtual bool DtIfStmt::setFromNet ( const char *  contentBuffer, unsigned  contentSize  )

virtual

Fills in the request from the network buffer.

Reimplemented from DtSimStatement.

virtual bool DtIfStmt::setToNet ( )

virtual

Fills in the network buffer (created by base class sim statement) with the if statement contents.

Network buffer is filled in as follows:

DtNetSimStatement DtNetIfStatment <myThenBlock->firstStmt()->netRep()> . . . <myThenBlock->lastStmt()->netRep()> <myElseBlock->firstStmt()->netRep()> . . . <myElseBlock->lastStmt()->netRep()>

Reimplemented from DtSimStatement.

static DtSimStatement* DtIfStmt::creator ( DtReaderWriterRegistry *  parentRegistry = NULL )

static

virtual bool DtIfStmt::compare ( DtSimStatement *  )

protectedvirtual

Called from isSameStatement.

Compares net reps to see if they are the same. Override to do different comparrison

Reimplemented from DtSimStatement.

Member Data Documentation

DtRwCondExpr DtIfStmt::myCondExpr

protected

bool DtIfStmt::myResult

protected

myResult temporarily holds the results of an evaluation of myCondExpr between the "execute" call and the "step" call.

DtIfBlock* DtIfStmt::myThenBlock

protected

DtIfBlock* DtIfStmt::myElseBlock

protected

---

The documentation for this class was generated from the following file:

• include/vrfplan/ifStmt.h