com.saxonica.codegen
Class TupleExpressionCompiler

java.lang.Object
  com.saxonica.codegen.ExpressionCompiler
      com.saxonica.codegen.SingletonExpressionCompiler
          com.saxonica.codegen.TupleExpressionCompiler

public class TupleExpressionCompiler
extends SingletonExpressionCompiler

Compiler for tuple expressions. The result of a tuple expression is an ObjectValue containing an array of Value objects

Constructor Summary

TupleExpressionCompiler()

Method Summary

String

compileToItem(CompilerService compiler, Expression expr) Generate Java code to evaluate the expression as an Item

Methods inherited from class com.saxonica.codegen.SingletonExpressionCompiler

compilePush, compileToCharSequence, compileToEffectiveBooleanValue, compileToIterator

Methods inherited from class com.saxonica.codegen.ExpressionCompiler

compileAsLoop, compileToValueRepresentation

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleExpressionCompiler

public TupleExpressionCompiler()

Method Detail

compileToItem

public String compileToItem(CompilerService compiler,
                            Expression expr)

Description copied from class: ExpressionCompiler

Generate Java code to evaluate the expression as an Item

Specified by:

compileToItem in class ExpressionCompiler

Parameters:

compiler - the compiler service

expr - the expression to be compiled

Returns:

a simple Java expression (usually the name of a variable that has been declared) which will be of class Item, and which will hold the value of the expression at run-time (or hold null, representing an empty sequence).