Overview | Package | Class | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## com.saxonica.bytecode
Class SlashExpressionCompiler

    java.lang.Object
      com.saxonica.bytecode.ExpressionCompiler
          com.saxonica.bytecode.ToIteratorCompiler
              com.saxonica.bytecode.SlashExpressionCompiler

    public class SlashExpressionCompiler

extends ToIteratorCompiler

Generate bytecode for a call to a SlashExpression or an xsl:for-each instruction (These have the same run-time semantics)

Constructor Summary
`SlashExpressionCompiler()`

Method Summary
`void` | `compileToIterator(CompilerService compiler, Expression expression)` Generate bytecode to evaluate the SlashExpression as a ContextMappingIterator Precondition: none.
`void` | `compileToPush(CompilerService compiler, Expression expression)` Generate bytecode to evaluate the expression in push mode Precondition: none.
`static CompiledContextMappingFunction` | `generateMappingFunction(CompilerService compiler, Expression step)` Generate a mapping function for a given step expression

Methods inherited from class com.saxonica.bytecode.ToIteratorCompiler
`compileToBoolean, compileToItem`

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

### SlashExpressionCompiler

    public SlashExpressionCompiler()

Method Detail

### compileToIterator

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

  Generate bytecode to evaluate the SlashExpression as a ContextMappingIterator Precondition: none. Postcondition: the stack contains an iterator 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`

### generateMappingFunction

    public static CompiledContextMappingFunction generateMappingFunction(CompilerService compiler,
                                                                         Expression step)
                                                                  throws CannotCompileException

  Generate a mapping function for a given step expression

  Parameters:
    `compiler` - the CompilerService
    `step` - the step expression to form the body of the mapping action
  Throws:
    `CannotCompileException`

### 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`

Overview | Package | Class | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.