com.saxonica.ee.bytecode

Class BlockCompiler

java.lang.Object

com.saxonica.ee.bytecode.ExpressionCompiler

com.saxonica.ee.bytecode.ToIteratorCompiler

com.saxonica.ee.bytecode.BlockCompiler

public class BlockCompiler
extends ToIteratorCompiler

Generate bytecode for a call to a Block expression. A block typically represents either an expression of the form (a, b, c, d), or an XSLT sequence constructor.

Constructor Summary

Constructors

Constructor and Description
BlockCompiler()

Method Summary

Modifier and Type	Method and Description
void	compileToIterator(CompilerService compiler, Expression expression) Generate bytecode to evaluate the BlockExpression as an iterator Precondition: none.
void	compileToPush(CompilerService compiler, Expression expression) Generate bytecode to evaluate the BlockExpression in push mode Precondition: none.

Methods inherited from class com.saxonica.ee.bytecode.ToIteratorCompiler

compileToBoolean, compileToItem

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

BlockCompiler

public BlockCompiler()

Method Detail

compileToPush

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

Generate bytecode to evaluate the BlockExpression in push mode Precondition: none. Postcondition: the stack is empty

Overrides:

compileToPush in class ToIteratorCompiler

Parameters:

compiler - the compiler service

expression - the expression to be compiled

Throws:

CannotCompileException - if the expression cannot be compiled to bytecode

compileToIterator

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

Generate bytecode to evaluate the BlockExpression as an iterator 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 - if the expression cannot be compiled to bytecode