Package net.sf.saxon.instruct
Class LocalVariable
java.lang.Object
net.sf.saxon.expr.ComputedExpression
net.sf.saxon.instruct.Instruction
net.sf.saxon.instruct.GeneralVariable
net.sf.saxon.instruct.LocalVariable
- All Implemented Interfaces:
Serializable
,SourceLocator
,Binding
,Container
,Expression
,TailCallReturner
,InstructionInfoProvider
Handler for local xsl:variable elements in stylesheet. Not used in XQuery. In fact, the class is used
only transiently in XSLT: local variables are compiled first to a LocalVariable object, and subsequently
to a LetExpression.
- See Also:
-
Field Summary
Fields inherited from class net.sf.saxon.instruct.GeneralVariable
evaluationMode, nameCode, referenceCount, requiredType, select, slotNumber
Fields inherited from class net.sf.saxon.expr.ComputedExpression
locationId, staticProperties
Fields inherited from interface net.sf.saxon.expr.Expression
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionEvaluate the variableprocessLeavingTail
(XPathContext context) Process the local variable declarationMethods inherited from class net.sf.saxon.instruct.GeneralVariable
display, evaluateItem, getCardinality, getInstructionNameCode, getItemType, getLocalSlotNumber, getNameCode, getRequiredType, getSelectExpression, getSelectValue, getSlotNumber, getVariableFingerprint, getVariableName, init, isAssignable, isGlobal, isImplicitlyRequiredParam, isRequiredParam, isTunnelParam, iterate, iterateSubExpressions, optimize, promoteInst, replaceSubExpression, setAssignable, setImplicitlyRequiredParam, setNameCode, setReferenceCount, setRequiredParam, setRequiredType, setSelectExpression, setSlotNumber, setTunnel, setVariableName, simplify, typeCheck
Methods inherited from class net.sf.saxon.instruct.Instruction
appendItem, assembleParams, assembleTunnelParams, computeCardinality, computeSpecialProperties, createsNewNodes, dynamicError, evaluateAsString, getImplementationMethod, getInstructionInfo, getSourceLocator, isXSLT, process, promote
Methods inherited from class net.sf.saxon.expr.ComputedExpression
adoptChildExpression, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getIntrinsicDependencies, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, markTailFunctionCalls, resetStaticProperties, setLocationId, setParentExpression, setParentExpression, suppressValidation, typeError
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface javax.xml.transform.SourceLocator
getColumnNumber, getLineNumber, getPublicId, getSystemId
-
Constructor Details
-
LocalVariable
public LocalVariable()
-
-
Method Details
-
processLeavingTail
Process the local variable declaration- Specified by:
processLeavingTail
in interfaceTailCallReturner
- Specified by:
processLeavingTail
in classInstruction
- Parameters:
context
- The dynamic context of the transformation, giving access to the current node, the current variables, etc.- Returns:
- null if the instruction has completed execution; or a TailCall indicating a function call or template call that is delegated to the caller, to be made after the stack has been unwound so as to save stack space.
- Throws:
XPathException
-
evaluateVariable
Evaluate the variable- Throws:
XPathException
-