Package com.saxonica.ee.bytecode
Class SimpleStepExpressionCompiler
- java.lang.Object
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- com.saxonica.ee.bytecode.ExpressionCompiler
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- com.saxonica.ee.bytecode.ToIteratorCompiler
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- com.saxonica.ee.bytecode.SimpleStepExpressionCompiler
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public class SimpleStepExpressionCompiler extends ToIteratorCompiler
Generate bytecode for a call to the SimpleStepExpression, which is a SlashExpression in which the lhs operand is known to return a singleton and the rhs operand is known to be an AxisExpression
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Constructor Summary
Constructors Constructor Description SimpleStepExpressionCompiler()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
compileToIterator(CompilerService compiler, Expression expression)
Generate bytecode to evaluate the expression as aSequenceIterator
Precondition: none.-
Methods inherited from class com.saxonica.ee.bytecode.ToIteratorCompiler
compileToBoolean, compileToItem, compileToPush
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Methods inherited from class com.saxonica.ee.bytecode.ExpressionCompiler
allocateStatic, compileItemFromInt, compileToPrimitive, generateMethod, handleEmptyStringResult, printStackTop, verify, visitAnnotation, visitLineNumber
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Method Detail
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compileToIterator
public void compileToIterator(CompilerService compiler, Expression expression) throws CannotCompileException
Description copied from class:ExpressionCompiler
Generate bytecode to evaluate the expression as aSequenceIterator
Precondition: none. Postcondition: at execution time, the stack contains a SequenceIterator representing the result of the expression- Specified by:
compileToIterator
in classExpressionCompiler
- Parameters:
compiler
- the compiler serviceexpression
- the expression to be compiled- Throws:
CannotCompileException
- if the expression cannot be compiled to bytecode
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