FirstItemExpressionCompiler

java.lang.Object
- com.saxonica.ee.bytecode.ExpressionCompiler
- - com.saxonica.ee.bytecode.ToItemCompiler
  - - com.saxonica.ee.bytecode.FirstItemExpressionCompiler

public class FirstItemExpressionCompiler
extends ToItemCompiler

Generate code for the FirstItemExpression

Constructor Summary

Constructors
Constructor Description

FirstItemExpressionCompiler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`compileToItem(CompilerService compiler, Expression expression)`	Generate bytecode to evaluate the expression as a Item Precondition: none.

Methods inherited from class com.saxonica.ee.bytecode.ToItemCompiler
compileToBoolean, compileToIterator, compileToPush, returnZeroLengthStringIfNull

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
  - FirstItemExpressionCompiler
```
public FirstItemExpressionCompiler()
```
- Method Detail
  - compileToItem
```
public void compileToItem(CompilerService compiler,
                          Expression expression)
                   throws CannotCompileException
```
    Generate bytecode to evaluate the expression as a Item Precondition: none. Postcondition: the stack contains a Item representing the result of the expression
    
    Specified by:
    
    compileToItem in class ExpressionCompiler
    
    Parameters:
    
    compiler - the compiler service
    
    expression - the expression to be compiled
    
    Throws:
    
    CannotCompileException - if the expression cannot be compiled to bytecode