net.sf.saxon.expr
public class UserFunctionCall extends FunctionCall implements InstructionInfoProvider
Nested Class Summary | |
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class | UserFunctionCall.FunctionCallPackage
Inner class used to wrap up the set of actual arguments to a tail-recursive call of
the containing function. |
Constructor Summary | |
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UserFunctionCall() |
Method Summary | |
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void | checkArguments(StaticContext env)
Method called during the type checking phase |
void | checkFunctionCall(UserFunction compiledFunction, StaticContext env)
Check the function call against the declared function signature |
int | computeCardinality()
Determine the cardinality of the result |
void | display(int level, NamePool pool, PrintStream out) |
ValueRepresentation | dynamicCall(ValueRepresentation[] suppliedArguments, XPathContext context)
Call the function dynamically. |
Item | evaluateItem(XPathContext c)
Call the function, returning the value as an item. |
Expression[] | getArguments()
Get the arguments (the expressions supplied in the function call) |
UserFunction | getFunction()
Get the function that is being called by this function call |
InstructionInfo | getInstructionInfo()
Get diagnostic information about this expression |
int | getIntrinsicDependencies() |
ItemType | getItemType(TypeHierarchy th)
Determine the data type of the expression, if possible |
boolean | isConfirmed()
Determine whether this function call is confirmed |
SequenceIterator | iterate(XPathContext c)
Call the function, returning an iterator over the results. |
boolean | markTailFunctionCalls()
Mark tail-recursive calls on stylesheet functions. |
Expression | preEvaluate(StaticContext env)
Pre-evaluate a function at compile time. |
void | setConfirmed(boolean conf)
Set this function as confirmed (the function being called is known to exist) or not |
void | setFunction(UserFunction compiledFunction, StaticContext env)
Create the reference to the function to be called, and validate for consistency |
void | setStaticType(SequenceType type)
Set the static type |
Expression | simplify(StaticContext env)
Simplify the function call |
Parameters: th
Returns: Type.ITEM (meaning not known in advance)