com.saxonica.bytecode
Class TryCatchExpressionCompiler

java.lang.Object
  extended by com.saxonica.bytecode.ExpressionCompiler
      extended by com.saxonica.bytecode.ToIteratorCompiler
          extended by com.saxonica.bytecode.TryCatchExpressionCompiler

public class TryCatchExpressionCompiler
extends ToIteratorCompiler

Generate bytecode for a call to a TryCatch Expression


Constructor Summary
TryCatchExpressionCompiler()
           
 
Method Summary
 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.
 
Methods inherited from class com.saxonica.bytecode.ToIteratorCompiler
compileToBoolean, compileToPush
 
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

TryCatchExpressionCompiler

public TryCatchExpressionCompiler()
Method Detail

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

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


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