Package com.saxonica.ee.bytecode
Class VariableReferenceCompiler
- 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.VariableReferenceCompiler
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public class VariableReferenceCompiler extends ToIteratorCompiler
Generate bytecode for evaluation of a VariableReference
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Constructor Summary
Constructors Constructor Description VariableReferenceCompiler()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description voidcompileToBoolean(CompilerService compiler, Expression expression)Generate bytecode to evaluate the expression as a boolean Precondition: none.voidcompileToItem(CompilerService compiler, Expression expression)Generate bytecode to evaluate a VariableReference as an Item Precondition: none.voidcompileToIterator(CompilerService compiler, Expression expression)Generate bytecode to evaluate a VariableReference as an Iterator Precondition: none.voidcompileToPush(CompilerService compiler, Expression expression)Generate bytecode to evaluate a VariableReference in push mode Precondition: none.static voidcompileToSequence(CompilerService compiler, VariableReference expression)Generate bytecode to evaluate a VariableReference as an Sequence Precondition: none.static voidgenEvaluateVariable(CompilerService compiler, Generator ga, VariableReference expression)-
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
Generate bytecode to evaluate a VariableReference as an Iterator Precondition: none. Postcondition: the stack contains an Iterator representing the evaluated variable- Specified by:
compileToIteratorin 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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compileToSequence
public static void compileToSequence(CompilerService compiler, VariableReference expression) throws CannotCompileException
Generate bytecode to evaluate a VariableReference as an Sequence Precondition: none. Postcondition: the stack contains a Sequence representing the evaluated variable- Parameters:
compiler- the compiler serviceexpression- the expression to be compiled- Throws:
CannotCompileException- if the expression cannot be compiled to bytecode
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genEvaluateVariable
public static void genEvaluateVariable(CompilerService compiler, Generator ga, VariableReference expression)
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compileToItem
public void compileToItem(CompilerService compiler, Expression expression) throws CannotCompileException
Generate bytecode to evaluate a VariableReference as an Item Precondition: none. Postcondition: the stack contains an Item representing the evaluated variable- Overrides:
compileToItemin classToIteratorCompiler- Parameters:
compiler- the compiler serviceexpression- the expression to be compiled- Throws:
CannotCompileException- if the expression cannot be compiled to bytecode
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compileToPush
public void compileToPush(CompilerService compiler, Expression expression) throws CannotCompileException
Generate bytecode to evaluate a VariableReference in push mode Precondition: none. Postcondition: the stack is unchanged- Overrides:
compileToPushin classToIteratorCompiler- Parameters:
compiler- the compiler serviceexpression- the expression to be compiled- Throws:
CannotCompileException- if the expression cannot be compiled to bytecode
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compileToBoolean
public void compileToBoolean(CompilerService compiler, Expression expression) throws CannotCompileException
Description copied from class:ExpressionCompilerGenerate bytecode to evaluate the expression as a boolean Precondition: none. Postcondition: at execution time, the stack contains an integer (0=false, 1=true) representing the result of the expression- Overrides:
compileToBooleanin classToIteratorCompiler- Parameters:
compiler- the compiler serviceexpression- the expression to be compiled- Throws:
CannotCompileException- if the expression cannot be compiled to bytecode
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