Package com.saxonica.ee.bytecode

Class UserFunctionCallCompiler

java.lang.Object

com.saxonica.ee.bytecode.ExpressionCompiler

com.saxonica.ee.bytecode.ToIteratorCompiler

com.saxonica.ee.bytecode.UserFunctionCallCompiler

public class UserFunctionCallCompiler
extends ToIteratorCompiler

Generate bytecode for evaluation of an UserFunctionCall

Constructor Summary

Constructors

Constructor	Description
UserFunctionCallCompiler()

Method Summary

Modifier and Type	Method	Description
void	compileFunctionCall(CompilerService compiler, Expression expression, boolean pull)
void	compileToItem(CompilerService compiler, Expression expression)	Generate bytecode to evaluate the expression as an Item Precondition: none.
void	compileToIterator(CompilerService compiler, Expression expression)	Generate bytecode to evaluate the expression as a SequenceIterator Precondition: none.
void	compileToPush(CompilerService compiler, Expression expression)	Generate bytecode to evaluate the expression in push mode Precondition: none.

Methods inherited from class com.saxonica.ee.bytecode.ToIteratorCompiler

compileToBoolean

Methods inherited from class com.saxonica.ee.bytecode.ExpressionCompiler

allocateStatic, compileItemFromInt, compileToPrimitive, generateMethod, handleEmptyStringResult, printStackTop, verify, visitAnnotation, visitLineNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

UserFunctionCallCompiler

public UserFunctionCallCompiler()

Method Detail

compileToIterator

public void compileToIterator(CompilerService compiler,
                              Expression expression)
                       throws CannotCompileException

Description copied from class: ExpressionCompiler

Generate bytecode to evaluate the expression as a SequenceIterator Precondition: none. Postcondition: at execution time, the stack contains a SequenceIterator representing the result of the expression

Specified by:

compileToIterator in class ExpressionCompiler

Parameters:

compiler - the compiler service

expression - the expression to be compiled

Throws:

CannotCompileException - if the expression cannot be compiled to bytecode

compileToItem

public void compileToItem(CompilerService compiler,
                          Expression expression)
                   throws CannotCompileException

Description copied from class: ExpressionCompiler

Generate bytecode to evaluate the expression as an Item Precondition: none. Postcondition: at execution time, the stack contains either an item (the result of the expression), or null (representing an empty sequence).

Overrides:

compileToItem in class ToIteratorCompiler

Parameters:

compiler - the compiler service

expression - the expression to be compiled

Throws:

CannotCompileException - if the expression cannot be compiled to bytecode

compileToPush

public void compileToPush(CompilerService compiler,
                          Expression expression)
                   throws CannotCompileException

Description copied from class: ExpressionCompiler

Generate bytecode to evaluate the expression in push mode Precondition: none. Postcondition: at execution time, the stack is unchanged, and the value of the expression has been written to the current receiver

Overrides:

compileToPush in class ToIteratorCompiler

Parameters:

compiler - the compiler service

expression - the expression to be compiled

Throws:

CannotCompileException - if the expression cannot be compiled to bytecode

compileFunctionCall

public void compileFunctionCall(CompilerService compiler,
                                Expression expression,
                                boolean pull)
                         throws CannotCompileException

Throws:

CannotCompileException