Class ASMCodeGenerator

java.lang.Object

com.googlecode.aviator.code.BaseEvalCodeGenerator

com.googlecode.aviator.code.asm.ASMCodeGenerator

All Implemented Interfaces:

CodeGenerator, EvalCodeGenerator

public class ASMCodeGenerator
extends BaseEvalCodeGenerator

Code generator using asm

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ASMCodeGenerator.MethodMetaData

Field Summary

Fields

Modifier and Type	Field	Description
private static final AtomicLong	CLASS_COUNTER
private final String	className
private final ClassWriter	classWriter
private Map<Token<?>,String>	constantPool
private static final String	CONSTRUCTOR_METHOD_NAME
private Label	currentLabel
private static final String	FIELD_PREFIX
private int	fieldCounter
static final String	FUNC_ARGS_INNER_VAR
private Map<String,String>	innerMethodMap
private Map<String,String>	innerVars
private static final String	JAVA_TYPE_OWNER
private final Stack<Label>	l0stack	Label stack for ternary operator
private final Stack<Label>	l1stack
private final Map<Label, Map<String,Integer>>	labelNameIndexMap
private int	maxLocals
private int	maxStacks
private MethodVisitor	mv
private static final String	OBJECT_DESC
private static final String	OBJECT_OWNER
private int	operandsCount	Operands count to check stack frames
private static final String	RUNTIME_UTILS
private static final Label	START_LABEL

Fields inherited from class BaseEvalCodeGenerator

classLoader, compileEnv, funcsArgs, instance, lambdaBootstraps, lambdaGenerator, methodMetaDataStack, methodTokens, parentCodeGenerator, parser, sourceFile, symbolTable, variables

Constructor Summary

Constructors

Constructor	Description
ASMCodeGenerator(AviatorEvaluatorInstance instance, String sourceFile, AviatorClassLoader classLoader, OutputStream traceOut)

Method Summary

Modifier and Type	Method	Description
private void	checkExecutionTimeout()
private void	createAviatorFunctionObject(String methodName)
private void	doCompareAndJump(Token<?> lookhead, int ints, OperatorType opType)
private void	end(boolean unboxObject)
private void	endVisitClass()
private void	endVisitMethodCode(boolean unboxObject)
private void	genCustomSerializeMethod()
void	genNewLambdaCode(LambdaFunctionBootstrap bootstrap)
private void	genReadObject()
private void	genWriteObject()
private String	getInnerName(String varName)
private static String	getInvokeMethodDesc(int paramCount)
(package private) LambdaGenerator	getLambdaGenerator()
int	getLocalIndex()
Expression	getResult(boolean unboxObject)
void	initConstants(Set<Token<?>> constants)	Initial constant pool.
void	initMethods(Map<String,Integer> methods)
void	initVariables(Map<String, VariableMeta> vars)
private boolean	isEqNe(int ints)
private void	loadAviatorFunction(String outterMethodName, String innerMethodName)
private boolean	loadConstant(Token<?> lookhead, boolean inConstructor)
private void	loadEnv()
private void	loadOpType(OperatorType opType)
private void	makeConstructor()	Make a default constructor
private Label	makeLabel()	Make a label
void	onAdd(Token<?> lookhead)
void	onAndLeft(Token<?> lookhead)	Do logic operation "invalid input: '&'invalid input: '&'" left operand
void	onAndRight(Token<?> lookhead)	Do logic operation "invalid input: '&'invalid input: '&'" right operand
void	onArray(Token<?> lookhead)
void	onArrayIndexEnd(Token<?> lookhead)
void	onArrayIndexStart(Token<?> token)
void	onAssignment(Token<?> lookhead)
void	onBitAnd(Token<?> lookhead)
void	onBitNot(Token<?> lookhead)	Bit operation '~'
void	onBitOr(Token<?> lookhead)
void	onBitXor(Token<?> lookhead)
void	onConstant(Token<?> lookhead)
private void	onConstant0(Token<?> lookhead, boolean inConstructor)
void	onDiv(Token<?> lookhead)
void	onEq(Token<?> lookhead)
void	onExponent(Token<?> lookhead)
void	onGe(Token<?> lookhead)
void	onGt(Token<?> lookhead)
void	onJoinLeft(Token<?> lookhead)	Do logic operation "||" left operand
void	onJoinRight(Token<?> lookhead)	Do logic operation "||" right operand
void	onLambdaArgument(Token<?> lookhead, FunctionParam param)
void	onLambdaBodyEnd(Token<?> lookhead)
void	onLambdaBodyStart(Token<?> lookhead)
void	onLambdaDefineStart(Token<?> lookhead)
void	onLe(Token<?> lookhead)
void	onLt(Token<?> lookhead)
void	onMatch(Token<?> lookhead)
void	onMethodInvoke(Token<?> lookhead)
void	onMethodName(Token<?> lookhead)
void	onMethodParameter(Token<?> lookhead)
void	onMod(Token<?> lookhead)
void	onMult(Token<?> lookhead)
void	onNeg(Token<?> lookhead)
void	onNeq(Token<?> lookhead)
void	onNot(Token<?> lookhead)	Logic operation '!'
void	onShiftLeft(Token<?> lookhead)
void	onShiftRight(Token<?> lookhead)
void	onSub(Token<?> lookhead)
void	onTernaryBoolean(Token<?> lookhead)
void	onTernaryEnd(Token<?> lookhead)
void	onTernaryLeft(Token<?> lookhead)
void	onTernaryRight(Token<?> lookhead)
void	onUnsignedShiftRight(Token<?> lookhead)
private Label	peekLabel0()
private Label	peekLabel1()
private Label	popLabel0()
private Label	popLabel1()
private void	popOperand()	Pop a operand from stack
private void	popOperand(int n)	Pop a operand from stack
private void	pushLabel0(Label l0)
private void	pushLabel1(Label l1)
private void	pushOperand()
private void	pushOperand(int delta)
private void	setMaxStacks(int newMaxStacks)
void	start()
private void	startVisitMethodCode()
private void	visitBinOperator(Token<?> token, OperatorType opType, String methodName)
private void	visitBoolean()
private void	visitClass()
private void	visitCompare(int ints, OperatorType opType)
private void	visitLabel(Label label)
private void	visitLeftBranch(Token<?> lookhead, int ints, OperatorType opType)
private void	visitLineNumber(Token<?> token)
private void	visitRightBranch(Token<?> lookhead, int ints, OperatorType opType)
private void	visitUnaryOperator(Token<?> lookhead, OperatorType opType, String methodName)

Methods inherited from class BaseEvalCodeGenerator

getClassLoader, getFuncsArgs, getNextFuncInvocationId, setLambdaBootstraps, setParser

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

RUNTIME_UTILS

private static final String RUNTIME_UTILS

See Also:

• Constant Field Values

OBJECT_DESC

private static final String OBJECT_DESC

See Also:

• Constant Field Values

JAVA_TYPE_OWNER

private static final String JAVA_TYPE_OWNER

See Also:

• Constant Field Values

CONSTRUCTOR_METHOD_NAME

private static final String CONSTRUCTOR_METHOD_NAME

See Also:

• Constant Field Values

OBJECT_OWNER

private static final String OBJECT_OWNER

See Also:

• Constant Field Values

FUNC_ARGS_INNER_VAR

public static final String FUNC_ARGS_INNER_VAR

See Also:

• Constant Field Values

FIELD_PREFIX

private static final String FIELD_PREFIX

See Also:

• Constant Field Values

classWriter

private final ClassWriter classWriter

mv

private MethodVisitor mv

className

private final String className

CLASS_COUNTER

private static final AtomicLong CLASS_COUNTER

operandsCount

private int operandsCount

Operands count to check stack frames

maxStacks

private int maxStacks

maxLocals

private int maxLocals

fieldCounter

private int fieldCounter

innerVars

private Map<String,String> innerVars

innerMethodMap

private Map<String,String> innerMethodMap

constantPool

private Map<Token<?>,String> constantPool

labelNameIndexMap

private final Map<Label, Map<String,Integer>> labelNameIndexMap

START_LABEL

private static final Label START_LABEL

currentLabel

private Label currentLabel

l0stack

private final Stack<Label> l0stack

Label stack for ternary operator

l1stack

private final Stack<Label> l1stack

Constructor Details

ASMCodeGenerator

public ASMCodeGenerator(AviatorEvaluatorInstance instance,
 String sourceFile,
 AviatorClassLoader classLoader,
 OutputStream traceOut)

Method Details

setMaxStacks

private void setMaxStacks(int newMaxStacks)

getLambdaGenerator

LambdaGenerator getLambdaGenerator()

start

public void start()

startVisitMethodCode

private void startVisitMethodCode()

endVisitMethodCode

private void endVisitMethodCode(boolean unboxObject)

endVisitClass

private void endVisitClass()

makeConstructor

private void makeConstructor()

Make a default constructor

visitClass

private void visitClass()

makeLabel

private Label makeLabel()

Make a label

Returns:

onAdd

public void onAdd(Token<?> lookhead)

loadOpType

private void loadOpType(OperatorType opType)

popOperand

private void popOperand()

Pop a operand from stack

popOperand

private void popOperand(int n)

Pop a operand from stack

onSub

public void onSub(Token<?> lookhead)

onMult

public void onMult(Token<?> lookhead)

onExponent

public void onExponent(Token<?> lookhead)

onAssignment

public void onAssignment(Token<?> lookhead)

onDiv

public void onDiv(Token<?> lookhead)

onMod

public void onMod(Token<?> lookhead)

onAndLeft

public void onAndLeft(Token<?> lookhead)

Do logic operation "invalid input: '&'invalid input: '&'" left operand

visitBoolean

private void visitBoolean()

pushLabel0

private void pushLabel0(Label l0)

onAndRight

public void onAndRight(Token<?> lookhead)

Do logic operation "invalid input: '&'invalid input: '&'" right operand

visitRightBranch

private void visitRightBranch(Token<?> lookhead,
 int ints,
 OperatorType opType)

onTernaryBoolean

public void onTernaryBoolean(Token<?> lookhead)

pushLabel1

private void pushLabel1(Label l1)

onTernaryLeft

public void onTernaryLeft(Token<?> lookhead)

peekLabel1

private Label peekLabel1()

onTernaryRight

public void onTernaryRight(Token<?> lookhead)

onTernaryEnd

public void onTernaryEnd(Token<?> lookhead)

popLabel1

private Label popLabel1()

onJoinRight

public void onJoinRight(Token<?> lookhead)

Do logic operation "||" right operand

visitLabel

private void visitLabel(Label label)

peekLabel0

private Label peekLabel0()

popLabel0

private Label popLabel0()

onJoinLeft

public void onJoinLeft(Token<?> lookhead)

Do logic operation "||" left operand

visitLeftBranch

private void visitLeftBranch(Token<?> lookhead,
 int ints,
 OperatorType opType)

onEq

public void onEq(Token<?> lookhead)

onMatch

public void onMatch(Token<?> lookhead)

onNeq

public void onNeq(Token<?> lookhead)

doCompareAndJump

private void doCompareAndJump(Token<?> lookhead,
 int ints,
 OperatorType opType)

isEqNe

private boolean isEqNe(int ints)

visitCompare

private void visitCompare(int ints,
 OperatorType opType)

onGe

public void onGe(Token<?> lookhead)

onGt

public void onGt(Token<?> lookhead)

onLe

public void onLe(Token<?> lookhead)

onLt

public void onLt(Token<?> lookhead)

pushOperand

private void pushOperand(int delta)

onNot

public void onNot(Token<?> lookhead)

Logic operation '!'

visitBinOperator

private void visitBinOperator(Token<?> token,
 OperatorType opType,
 String methodName)

visitLineNumber

private void visitLineNumber(Token<?> token)

visitUnaryOperator

private void visitUnaryOperator(Token<?> lookhead,
 OperatorType opType,
 String methodName)

onBitNot

public void onBitNot(Token<?> lookhead)

Bit operation '~'

onNeg

public void onNeg(Token<?> lookhead)

getResult

public Expression getResult(boolean unboxObject)

genReadObject

private void genReadObject()

genCustomSerializeMethod

private void genCustomSerializeMethod()

genWriteObject

private void genWriteObject()

end

private void end(boolean unboxObject)

onConstant

public void onConstant(Token<?> lookhead)

onConstant0

private void onConstant0(Token<?> lookhead,
 boolean inConstructor)

loadConstant

private boolean loadConstant(Token<?> lookhead,
 boolean inConstructor)

initVariables

public void initVariables(Map<String, VariableMeta> vars)

initConstants

public void initConstants(Set<Token<?>> constants)

Initial constant pool.

Parameters:

constants -

initMethods

public void initMethods(Map<String,Integer> methods)

Specified by:

initMethods in interface EvalCodeGenerator

Overrides:

initMethods in class BaseEvalCodeGenerator

getInnerName

private String getInnerName(String varName)

getInvokeMethodDesc

private static String getInvokeMethodDesc(int paramCount)

onMethodInvoke

public void onMethodInvoke(Token<?> lookhead)

onMethodParameter

public void onMethodParameter(Token<?> lookhead)

pushOperand

private void pushOperand()

onArray

public void onArray(Token<?> lookhead)

onArrayIndexStart

public void onArrayIndexStart(Token<?> token)

onArrayIndexEnd

public void onArrayIndexEnd(Token<?> lookhead)

getLocalIndex

public int getLocalIndex()

onLambdaDefineStart

public void onLambdaDefineStart(Token<?> lookhead)

onLambdaArgument

public void onLambdaArgument(Token<?> lookhead,
 FunctionParam param)

onLambdaBodyStart

public void onLambdaBodyStart(Token<?> lookhead)

onLambdaBodyEnd

public void onLambdaBodyEnd(Token<?> lookhead)

genNewLambdaCode

public void genNewLambdaCode(LambdaFunctionBootstrap bootstrap)

onMethodName

public void onMethodName(Token<?> lookhead)

checkExecutionTimeout

private void checkExecutionTimeout()

loadAviatorFunction

private void loadAviatorFunction(String outterMethodName,
 String innerMethodName)

loadEnv

private void loadEnv()

createAviatorFunctionObject

private void createAviatorFunctionObject(String methodName)

onBitAnd

public void onBitAnd(Token<?> lookhead)

onBitOr

public void onBitOr(Token<?> lookhead)

onBitXor

public void onBitXor(Token<?> lookhead)

onShiftLeft

public void onShiftLeft(Token<?> lookhead)

onShiftRight

public void onShiftRight(Token<?> lookhead)

onUnsignedShiftRight

public void onUnsignedShiftRight(Token<?> lookhead)