com.saxonica.bytecode
Class ContextItemCompiler

java.lang.Object
  com.saxonica.bytecode.ExpressionCompiler
      com.saxonica.bytecode.ToItemCompiler
          com.saxonica.bytecode.ContextItemCompiler

public class ContextItemCompiler
extends ToItemCompiler

Generate code for a context item expression (that is, "."), and also for an XSLT CurrentItemExpression (current()), which differs only in the error code it returns

Constructor Summary

ContextItemCompiler()

Method Summary

void	compileToItem(CompilerService compiler, Expression expression) Generate bytecode to evaluate the expression as an Item Precondition: none.

Methods inherited from class com.saxonica.bytecode.ToItemCompiler

compileToBoolean, compileToIterator, compileToPush, returnZeroLengthStringIfNull

Methods inherited from class com.saxonica.bytecode.ExpressionCompiler

allocateStatic, compileItemFromInt, compileItemFromString, compileToLoop, compileToPrimitive, generateMethod, getConfiguration, handleEmptyStringResult, setConfiguration, throwXPathException, throwXPathException, unboxItem, verify, visitAnnotation, visitLineNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

ContextItemCompiler

public ContextItemCompiler()

Method Detail

compileToItem

public void compileToItem(CompilerService compiler,
                          Expression expression)

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).

Specified by:

compileToItem in class ExpressionCompiler

Parameters:

compiler - the compiler service

expression - the expression to be compiled