Package com.saxonica.ee.bytecode

Class ToPushCompiler

java.lang.Object

com.saxonica.ee.bytecode.ExpressionCompiler

com.saxonica.ee.bytecode.ToIteratorCompiler

com.saxonica.ee.bytecode.ToPushCompiler

Direct Known Subclasses:

ApplyImportsCompiler, ApplyTemplatesCompiler, BreakInstrCompiler, CallTemplateCompiler, ComputedAttributeCompiler, CopyCompiler, DocumentInstrCompiler, ElementCreatorCompiler, FixedAttributeCompiler, ForEachGroupCompiler, IterateInstrCompiler, LocalParamBlockCompiler, LocalParamCompiler, NextIterationCompiler, NextMatchCompiler, ResultDocumentCompiler, SimpleNodeConstructorCompiler, UseAttributeSetCompiler

public class ToPushCompiler
extends ToIteratorCompiler

Constructor Summary

Constructors

Constructor	Description
ToPushCompiler()

Method Summary

Modifier and Type	Method	Description
static Generator	compilePushToSequenceCollector(CompilerService compiler, Expression expression)
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.ee.bytecode.ToIteratorCompiler

compileToBoolean, compileToPush

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

ToPushCompiler

public ToPushCompiler()

Method Detail

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 - if the expression cannot be compiled to bytecode

compilePushToSequenceCollector

public static Generator compilePushToSequenceCollector(CompilerService compiler,
                                                       Expression expression)
                                                throws CannotCompileException

Throws:

CannotCompileException

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 - if the expression cannot be compiled to bytecode