Package net.sf.saxon.instruct
Class WithParam
java.lang.Object
net.sf.saxon.expr.ComputedExpression
net.sf.saxon.instruct.Instruction
net.sf.saxon.instruct.GeneralVariable
net.sf.saxon.instruct.WithParam
- All Implemented Interfaces:
Serializable
,SourceLocator
,Binding
,Container
,Expression
,TailCallReturner
,InstructionInfoProvider
An instruction derived from a xsl:with-param element in the stylesheet.
- See Also:
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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
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionevaluateVariable
(XPathContext context) Evaluate the variable (method exists only to satisfy the interface)int
Get the namecode of the instruction for use in diagnosticsstatic void
getXPathExpressions
(WithParam[] params, List list) Get the XPath expressions used in an array of WithParam parameters (add them to the supplied list)static void
optimize
(Optimizer opt, WithParam[] params, StaticContext env, ItemType contextItemType) processLeavingTail
(XPathContext context) ProcessLeavingTail: called to do the real work of this instruction.static void
promoteParams
(WithParam[] params, PromotionOffer offer) Promote the expressions in a set of with-param elements.static boolean
replaceXPathExpression
(WithParam[] params, Expression original, Expression replacement) Replace a subexpressionstatic void
simplify
(WithParam[] params, StaticContext env) static void
typeCheck
(WithParam[] params, StaticContext env, ItemType contextItemType) Methods inherited from class net.sf.saxon.instruct.GeneralVariable
display, evaluateItem, getCardinality, 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
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Constructor Details
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WithParam
public WithParam()
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Method Details
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getInstructionNameCode
public int getInstructionNameCode()Description copied from class:Instruction
Get the namecode of the instruction for use in diagnostics- Overrides:
getInstructionNameCode
in classGeneralVariable
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processLeavingTail
Description copied from class:Instruction
ProcessLeavingTail: called to do the real work of this instruction. This method must be implemented in each subclass. The results of the instruction are written to the current Receiver, which can be obtained via the Controller.- 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
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simplify
- Throws:
XPathException
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typeCheck
public static void typeCheck(WithParam[] params, StaticContext env, ItemType contextItemType) throws XPathException - Throws:
XPathException
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optimize
public static void optimize(Optimizer opt, WithParam[] params, StaticContext env, ItemType contextItemType) throws XPathException - Throws:
XPathException
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promoteParams
Promote the expressions in a set of with-param elements. This is a convenience method for use by subclasses.- Throws:
XPathException
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getXPathExpressions
Get the XPath expressions used in an array of WithParam parameters (add them to the supplied list) -
replaceXPathExpression
public static boolean replaceXPathExpression(WithParam[] params, Expression original, Expression replacement) Replace a subexpression -
evaluateVariable
Evaluate the variable (method exists only to satisfy the interface)- Throws:
XPathException
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