Class ByteCodeParser

java.lang.Object

org.jd.core.v1.service.converter.classfiletojavasyntax.util.ByteCodeParser

public class ByteCodeParser
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ByteCodeParser.JsrReturnAddressExpression
private static class	ByteCodeParser.LambdaParameterNamesVisitor
private static class	ByteCodeParser.MemberVisitor

Field Summary

Fields

Modifier and Type	Field	Description
private AttributeBootstrapMethods	attributeBootstrapMethods
private ClassFileBodyDeclaration	bodyDeclaration
private String	internalTypeName
private static final ByteCodeParser.JsrReturnAddressExpression	JSR_RETURN_ADDRESS_EXPRESSION
private LocalVariableMaker	localVariableMaker
private ByteCodeParser.MemberVisitor	memberVisitor
private Type	returnedType
private SearchFirstLineNumberVisitor	searchFirstLineNumberVisitor
private Map<String,BaseType>	typeBounds
private TypeMaker	typeMaker
private TypeParametersToTypeArgumentsBinder	typeParametersToTypeArgumentsBinder

Constructor Summary

Constructors

Constructor	Description
ByteCodeParser(TypeMaker typeMaker, LocalVariableMaker localVariableMaker, ClassFile classFile, ClassFileBodyDeclaration bodyDeclaration, ClassFileConstructorOrMethodDeclaration comd)

Method Summary

Modifier and Type	Method	Description
private static Expression	checkIfLastStatementIsAMultiAssignment(Statements statements, Expression parameter)
private static void	checkStack(DefaultStack<Expression> stack, byte[] code, int offset)
private static int	countMethodParameters(String descriptor)
private static Expression	createAssignment(BinaryOperatorExpression boe, String operator)
private void	createAssignment(Statements statements, DefaultStack<Expression> stack, int lineNumber, Expression leftExpression, Expression rightExpression)
static int	evalStackDepth(ConstantPool constants, byte[] code, BasicBlock bb)
static int	evalStackDepth(BasicBlock bb)
private BaseExpression	extractParametersFromStack(Statements statements, DefaultStack<Expression> stack, BaseType parameterTypes)
static int	getExceptionLocalVariableIndex(BasicBlock basicBlock)
private Expression	getFieldInstanceReference(Expression expression, ObjectType ot, String name)
static int	getLastOpcode(BasicBlock basicBlock)
private static Expression	getLastRightExpression(BinaryOperatorExpression boe)
private AbstractLocalVariable	getLocalVariableInAssignment(int index, int offset, Expression value)
private Expression	getMethodInstanceReference(Expression expression, ObjectType ot, String name, String descriptor)
static boolean	isAssertCondition(String internalTypeName, BasicBlock basicBlock)
private static boolean	isNegativeOne(Expression expression)
private static boolean	isPositiveOne(Expression expression)
private Expression	newIntegerBinaryOperatorExpression(int lineNumber, Expression leftExpression, String operator, Expression rightExpression, int priority)
private Expression	newIntegerComparisonOperatorExpression(int lineNumber, Expression leftExpression, String operator, Expression rightExpression, int priority)
private Expression	newIntegerOrBooleanBinaryOperatorExpression(int lineNumber, Expression leftExpression, String operator, Expression rightExpression, int priority)
private Expression	newIntegerOrBooleanComparisonOperatorExpression(int lineNumber, Expression leftExpression, String operator, Expression rightExpression, int priority)
private Expression	newNewExpression(int lineNumber, String internalTypeName)
private Expression	newPostArithmeticOperatorExpression(int lineNumber, Expression expression, String operator)
private Expression	newPreArithmeticOperatorExpression(int lineNumber, String operator, Expression expression)
void	parse(BasicBlock basicBlock, Statements statements, DefaultStack<Expression> stack)
private void	parseASTORE(Statements statements, DefaultStack<Expression> stack, int lineNumber, AbstractLocalVariable localVariable, Expression valueRef)
private void	parseGetField(DefaultStack<Expression> stack, ConstantPool constants, int lineNumber, int index)
private void	parseGetStatic(DefaultStack<Expression> stack, ConstantPool constants, int lineNumber, int index)
private void	parseIF(DefaultStack<Expression> stack, int lineNumber, BasicBlock basicBlock, String operator1, String operator2, int priority)
private void	parseIINC(Statements statements, DefaultStack<Expression> stack, int lineNumber, AbstractLocalVariable localVariable, int count)
private static void	parseILOAD(Statements statements, DefaultStack<Expression> stack, int lineNumber, AbstractLocalVariable localVariable)
private void	parseInvokeDynamic(Statements statements, DefaultStack<Expression> stack, ConstantPool constants, int lineNumber, int index)
private void	parseLDC(DefaultStack<Expression> stack, ConstantPool constants, int lineNumber, Constant constant)
private void	parsePUT(Statements statements, DefaultStack<Expression> stack, int lineNumber, FieldReferenceExpression fr, Expression valueRef)
private void	parsePutField(Statements statements, DefaultStack<Expression> stack, ConstantPool constants, int lineNumber, int index)
private void	parsePutStatic(Statements statements, DefaultStack<Expression> stack, ConstantPool constants, int lineNumber, int index)
private void	parseSTORE(Statements statements, DefaultStack<Expression> stack, int lineNumber, AbstractLocalVariable localVariable, Expression valueRef)
private void	parseXRETURN(Statements statements, DefaultStack<Expression> stack, int lineNumber)
private static List<String>	prepareLambdaParameters(BaseFormalParameter formalParameters, int parameterCount)
private static BaseStatement	prepareLambdaStatements(BaseStatement baseStatement)
private void	reduceIntegerLocalVariableType(Expression expression)
static int	searchNextOpcode(BasicBlock basicBlock, int maxOffset)
private static boolean	stackContainsFieldReference(DefaultStack<Expression> stack, FieldReferenceExpression fr)
private static boolean	stackContainsLocalVariableReference(DefaultStack<Expression> stack, AbstractLocalVariable localVariable)

Methods inherited from class Object

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

Field Details

JSR_RETURN_ADDRESS_EXPRESSION

private static final ByteCodeParser.JsrReturnAddressExpression JSR_RETURN_ADDRESS_EXPRESSION

memberVisitor

private ByteCodeParser.MemberVisitor memberVisitor

searchFirstLineNumberVisitor

private SearchFirstLineNumberVisitor searchFirstLineNumberVisitor

typeMaker

private TypeMaker typeMaker

localVariableMaker

private LocalVariableMaker localVariableMaker

internalTypeName

private String internalTypeName

typeParametersToTypeArgumentsBinder

private TypeParametersToTypeArgumentsBinder typeParametersToTypeArgumentsBinder

attributeBootstrapMethods

private AttributeBootstrapMethods attributeBootstrapMethods

bodyDeclaration

private ClassFileBodyDeclaration bodyDeclaration

typeBounds

private Map<String,BaseType> typeBounds

returnedType

private Type returnedType

Constructor Details

ByteCodeParser

public ByteCodeParser(TypeMaker typeMaker,
 LocalVariableMaker localVariableMaker,
 ClassFile classFile,
 ClassFileBodyDeclaration bodyDeclaration,
 ClassFileConstructorOrMethodDeclaration comd)

Method Details

parse

public void parse(BasicBlock basicBlock,
 Statements statements,
 DefaultStack<Expression> stack)

extractParametersFromStack

private BaseExpression extractParametersFromStack(Statements statements,
 DefaultStack<Expression> stack,
 BaseType parameterTypes)

checkIfLastStatementIsAMultiAssignment

private static Expression checkIfLastStatementIsAMultiAssignment(Statements statements,
 Expression parameter)

getLocalVariableInAssignment

private AbstractLocalVariable getLocalVariableInAssignment(int index,
 int offset,
 Expression value)

parseLDC

private void parseLDC(DefaultStack<Expression> stack,
 ConstantPool constants,
 int lineNumber,
 Constant constant)

parseILOAD

private static void parseILOAD(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber,
 AbstractLocalVariable localVariable)

parseSTORE

private void parseSTORE(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber,
 AbstractLocalVariable localVariable,
 Expression valueRef)

stackContainsLocalVariableReference

private static boolean stackContainsLocalVariableReference(DefaultStack<Expression> stack,
 AbstractLocalVariable localVariable)

parsePUT

private void parsePUT(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber,
 FieldReferenceExpression fr,
 Expression valueRef)

parseInvokeDynamic

private void parseInvokeDynamic(Statements statements,
 DefaultStack<Expression> stack,
 ConstantPool constants,
 int lineNumber,
 int index)

prepareLambdaParameters

private static List<String> prepareLambdaParameters(BaseFormalParameter formalParameters,
 int parameterCount)

prepareLambdaStatements

private static BaseStatement prepareLambdaStatements(BaseStatement baseStatement)

stackContainsFieldReference

private static boolean stackContainsFieldReference(DefaultStack<Expression> stack,
 FieldReferenceExpression fr)

createAssignment

private static Expression createAssignment(BinaryOperatorExpression boe,
 String operator)

isPositiveOne

private static boolean isPositiveOne(Expression expression)

isNegativeOne

private static boolean isNegativeOne(Expression expression)

parseASTORE

private void parseASTORE(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber,
 AbstractLocalVariable localVariable,
 Expression valueRef)

createAssignment

private void createAssignment(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber,
 Expression leftExpression,
 Expression rightExpression)

parseIINC

private void parseIINC(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber,
 AbstractLocalVariable localVariable,
 int count)

parseIF

private void parseIF(DefaultStack<Expression> stack,
 int lineNumber,
 BasicBlock basicBlock,
 String operator1,
 String operator2,
 int priority)

parseXRETURN

private void parseXRETURN(Statements statements,
 DefaultStack<Expression> stack,
 int lineNumber)

parseGetStatic

private void parseGetStatic(DefaultStack<Expression> stack,
 ConstantPool constants,
 int lineNumber,
 int index)

parsePutStatic

private void parsePutStatic(Statements statements,
 DefaultStack<Expression> stack,
 ConstantPool constants,
 int lineNumber,
 int index)

parseGetField

private void parseGetField(DefaultStack<Expression> stack,
 ConstantPool constants,
 int lineNumber,
 int index)

parsePutField

private void parsePutField(Statements statements,
 DefaultStack<Expression> stack,
 ConstantPool constants,
 int lineNumber,
 int index)

getLastRightExpression

private static Expression getLastRightExpression(BinaryOperatorExpression boe)

newNewExpression

private Expression newNewExpression(int lineNumber,
 String internalTypeName)

newIntegerBinaryOperatorExpression

private Expression newIntegerBinaryOperatorExpression(int lineNumber,
 Expression leftExpression,
 String operator,
 Expression rightExpression,
 int priority)

newIntegerOrBooleanBinaryOperatorExpression

private Expression newIntegerOrBooleanBinaryOperatorExpression(int lineNumber,
 Expression leftExpression,
 String operator,
 Expression rightExpression,
 int priority)

newIntegerOrBooleanComparisonOperatorExpression

private Expression newIntegerOrBooleanComparisonOperatorExpression(int lineNumber,
 Expression leftExpression,
 String operator,
 Expression rightExpression,
 int priority)

newIntegerComparisonOperatorExpression

private Expression newIntegerComparisonOperatorExpression(int lineNumber,
 Expression leftExpression,
 String operator,
 Expression rightExpression,
 int priority)

newPreArithmeticOperatorExpression

private Expression newPreArithmeticOperatorExpression(int lineNumber,
 String operator,
 Expression expression)

newPostArithmeticOperatorExpression

private Expression newPostArithmeticOperatorExpression(int lineNumber,
 Expression expression,
 String operator)

reduceIntegerLocalVariableType

private void reduceIntegerLocalVariableType(Expression expression)

getFieldInstanceReference

private Expression getFieldInstanceReference(Expression expression,
 ObjectType ot,
 String name)

Returns:

expression, 'this' or 'super'

getMethodInstanceReference

private Expression getMethodInstanceReference(Expression expression,
 ObjectType ot,
 String name,
 String descriptor)

Returns:

expression, 'this' or 'super'

checkStack

private static void checkStack(DefaultStack<Expression> stack,
 byte[] code,
 int offset)

isAssertCondition

public static boolean isAssertCondition(String internalTypeName,
 BasicBlock basicBlock)

getExceptionLocalVariableIndex

public static int getExceptionLocalVariableIndex(BasicBlock basicBlock)

searchNextOpcode

public static int searchNextOpcode(BasicBlock basicBlock,
 int maxOffset)

getLastOpcode

public static int getLastOpcode(BasicBlock basicBlock)

evalStackDepth

public static int evalStackDepth(BasicBlock bb)

evalStackDepth

public static int evalStackDepth(ConstantPool constants,
 byte[] code,
 BasicBlock bb)

countMethodParameters

private static int countMethodParameters(String descriptor)