Class CodeData

java.lang.Object

org.openjdk.asmtools.jdis.Indenter

org.openjdk.asmtools.jdis.MemberData<MethodData>

org.openjdk.asmtools.jdis.CodeData

All Implemented Interfaces:

Printable

public class CodeData
extends MemberData<MethodData>

Code data for a code attribute in method members in a class of the Java Disassembler

Nested Class Summary

Nested classes/interfaces inherited from class MemberData

MemberData.AnnotationElementState

Nested classes/interfaces inherited from class Indenter

Indenter.NotImplementedException

Field Summary

Fields

Modifier and Type	Field	Description
private int	attributeOffset
protected ArrayList<AttrData>	attrs
protected byte[]	code
private boolean	firstStackEntry
private final HashMap<Integer, InstructionAttr>	instructionAttrs	reversed bytecode index hash, associates labels with ByteCode indexes
private int	instructionOffset
private ArrayList<TypeAnnotationData<MethodData>>	invisibleTypeAnnotations
private Container<LineNumberData, CodeData>	lineNumberTable
private Container<LocalVariableData, CodeData>	localVariableTable
private Container<LocalVariableTypeData, CodeData>	localVariableTypeTable
protected int	max_locals
protected int	max_stack
private StackMapTable	stackMapTable
private ArrayList<TrapData>	trap_table
private ArrayList<TypeAnnotationData<MethodData>>	visibleTypeAnnotations

Fields inherited from class MemberData

access, attributes, data, DEFAULT_VALUE_PREFIX, environment, invisibleAnnotations, isDeprecated, isSynthetic, memberType, owner, pool, signature, visibleAnnotations

Fields inherited from class Indenter

ARGUMENT_DELIMITER, bestEffort, BootstrapArgumentsBreakPositions, BootstrapMethodBreakPositions, CIRCULAR_COMMENT_OFFSET, COMMENT_PADDING, commentOffset, detailedOutput, dropCharacterRange, dropClasses, dropSignatures, dropSourceFile, extraDetailedOutput, hasSize, INDENT_CHAR, INDENT_OFFSET, INDENT_STEP, INDENT_STRING, INITIAL_COMMENT_OFFSET, INSTR_PREFIX_LENGTH, InvokeDynamicBreakPositions, LdwBreakPositions, LINE_SPLITTER, maxSize, maxSizeCalculated, NO_BSM_ARGUMENTS, NO_BSM_ARGUMENTS_REGEX, OPERAND_PLACEHOLDER_LENGTH, printable, printConstantPool, printCPIndex, printHEX, printLabelAsIdentifiers, printLineNumber, printLineTable, printLineTableLines, printLineTableNumbers, printLocalVariables, printLocalVariableTypes, printProgramCounter, printSourceLines, PROGRAM_COUNTER_PLACEHOLDER_LENGTH, REPLACEMENT_NO_BSM_ARGUMENTS, skipComments, STACKMAP_TYPE_PLACEHOLDER_LENGTH, sysInfo, TABLE_PADDING, tableFormat, tableToken, toolOutput, UNDEFINED

Constructor Summary

Constructors

Constructor	Description
CodeData(MethodData data)

Method Summary

Modifier and Type	Method	Description
private static int	align(int n)
private boolean	calculateFirstPosition(int index)	Calculates whether a StackMapTable[index] entry is the first in the table, ignoring wrappers
private List<Byte>	checkCodeBounds(int ind, int count)	Checks whether the bytes corresponding to the instruction's parameters belong to the code attribute.
private int	checkForLabelRef(int pc)
private int	getByte(int pc)
Environment	getEnvironment()
protected InstructionAttr	getFirstInstruction()
protected InstructionAttr	getInstructionAttribute(int pc)
private int	getInt(int pc)
protected InstructionAttr	getLastInstruction()
private Pair<Integer,Integer>[]	getLookupswitchPairs(int pad, int count)
private int	getShort(int pc)
private int	getUByte(int pc)
private int	getUShort(int pc)
private void	loadLabelTable()
private void	loadLineNumTable()
private void	loadLocalVariableTable()
private void	loadLocalVariableTypeTable()
private void	loadStackMap()
private void	loadTrapTable()
void	print()	Prints the code data to the current output stream if code exists (method isn't abstract)
protected <T extends AnnotationData> void	printAnnotations(List<T>... annotationLists)	Prints ClassData annotations
private void	printBytes(byte opcode, List<Byte> bytes, int shift)
private int	printInstrLn(int pc, int shift)
void	read(DataInputStream in, int codeAttrLength)	Read and resolve the code attribute data called from MethodData.
private Container<LineNumberData, CodeData>	readLineNumberTable(DataInputStream in, boolean ignoreMemorization)
private Container<LocalVariableData, CodeData>	readLocalVariableTable(DataInputStream in, boolean ignoreMemorization)
private Container<LocalVariableTypeData, CodeData>	readLocalVariableTypeTable(DataInputStream in, boolean ignoreMemorization)
private void	readStackMapEntity(EAttribute attribute, DataInputStream in)
private void	readTrapTable(DataInputStream in)
private void	readTypeAnnotations(DataInputStream in, boolean isInvisible)
MemberData<MethodData>	setSignature(SignatureData signatureData)

Methods inherited from class MemberData

calculateInlinedTitleShift, getAnnotationElementState, getAnnotationsCount, getConstantPool, getListOf, getPseudoFlagsAsString, handleAttributes, handleUnrecognizedAttributes, init, printAttributes, printSysInfo, printVar, readAttributes, setElementState, setOwner

Methods inherited from class Indenter

decIndent, decIndent, enlargedIndent, enlargedIndent, formatOperandLine, getCommentOffset, getIndentSize, getIndentStep, getIndentString, getLabelPrefix, getOffset, getPrintAttributeCommentPadding, getPrintAttributeKeyPadding, getTitle, incIndent, incIndent, Indent, IndentPadLeft, IndentPadRight, initIndent, isTableOutput, jasmPrint, jasmPrint, nCopies, padLeft, PadLeft, padRight, PadRight, print, print, print, printIndent, printIndent, printIndent, printIndentLn, printIndentLn, printIndentLn, printIndentPadLeft, printIndentPadRight, println, println, println, println, printPadLeft, printPadRight, setCommentOffset, setHasSize, setOffset, setTheSame, tableFormatSupported, tablePrint, tablePrint

Methods inherited from class Object

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

Methods inherited from interface Printable

isPrintable

Field Details

instructionAttrs

private final HashMap<Integer, InstructionAttr> instructionAttrs

reversed bytecode index hash, associates labels with ByteCode indexes

code

protected byte[] code

max_stack

protected int max_stack

max_locals

protected int max_locals

attrs

protected ArrayList<AttrData> attrs

trap_table

private ArrayList<TrapData> trap_table

lineNumberTable

private Container<LineNumberData, CodeData> lineNumberTable

localVariableTable

private Container<LocalVariableData, CodeData> localVariableTable

localVariableTypeTable

private Container<LocalVariableTypeData, CodeData> localVariableTypeTable

stackMapTable

private StackMapTable stackMapTable

firstStackEntry

private boolean firstStackEntry

visibleTypeAnnotations

private ArrayList<TypeAnnotationData<MethodData>> visibleTypeAnnotations

invisibleTypeAnnotations

private ArrayList<TypeAnnotationData<MethodData>> invisibleTypeAnnotations

instructionOffset

private int instructionOffset

attributeOffset

private int attributeOffset

Constructor Details

CodeData

public CodeData(MethodData data)

Method Details

align

private static int align(int n)

getByte

private int getByte(int pc)
             throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

getUByte

private int getUByte(int pc)
              throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

getShort

private int getShort(int pc)
              throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

getUShort

private int getUShort(int pc)
               throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

getInt

private int getInt(int pc)
            throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

getInstructionAttribute

protected InstructionAttr getInstructionAttribute(int pc)

getLastInstruction

protected InstructionAttr getLastInstruction()

getFirstInstruction

protected InstructionAttr getFirstInstruction()

readLineNumberTable

private Container<LineNumberData, CodeData> readLineNumberTable(DataInputStream in,
 boolean ignoreMemorization)
                                                         throws IOException

Throws:

IOException

readLocalVariableTable

private Container<LocalVariableData, CodeData> readLocalVariableTable(DataInputStream in,
 boolean ignoreMemorization)
                                                               throws IOException

Throws:

IOException

readLocalVariableTypeTable

private Container<LocalVariableTypeData, CodeData> readLocalVariableTypeTable(DataInputStream in,
 boolean ignoreMemorization)
                                                                       throws IOException

Throws:

IOException

readTrapTable

private void readTrapTable(DataInputStream in)
                    throws IOException

Throws:

IOException

readStackMapEntity

private void readStackMapEntity(EAttribute attribute,
 DataInputStream in)
                         throws IOException

Throws:

IOException

calculateFirstPosition

private boolean calculateFirstPosition(int index)

Calculates whether a StackMapTable[index] entry is the first in the table, ignoring wrappers

Parameters:

index - index of the entry in the StackMapTable

Returns:

true if index refers to the first entry that isn't wrapper.

readTypeAnnotations

private void readTypeAnnotations(DataInputStream in,
 boolean isInvisible)
                          throws IOException

Throws:

IOException

read

public void read(DataInputStream in,
 int codeAttrLength)
          throws IOException

Read and resolve the code attribute data called from MethodData. precondition: NumFields has already been read from the stream.

Throws:

IOException

checkForLabelRef

private int checkForLabelRef(int pc)

loadLabelTable

private void loadLabelTable()

loadLineNumTable

private void loadLineNumTable()

loadStackMap

private void loadStackMap()

loadLocalVariableTable

private void loadLocalVariableTable()

loadLocalVariableTypeTable

private void loadLocalVariableTypeTable()

loadTrapTable

private void loadTrapTable()

printInstrLn

private int printInstrLn(int pc,
 int shift)

printBytes

private void printBytes(byte opcode,
 List<Byte> bytes,
 int shift)

Parameters:

opcode - byte encoding of an instruction

bytes - bytes corresponding to the instruction's parameters

shift - printing indentation for output bytes

checkCodeBounds

private List<Byte> checkCodeBounds(int ind,
 int count)

Checks whether the bytes corresponding to the instruction's parameters belong to the code attribute.

Parameters:

ind - code index of the instruction

count - number of bytes corresponding to the instruction's parameters

Returns:

The list of bytes corresponds to the instruction's parameters that belong to the code attribute. If the count does not match the list size, it indicates that the instruction is truncated.

getLookupswitchPairs

private Pair<Integer,Integer>[] getLookupswitchPairs(int pad,
 int count)

print

public void print()
           throws IOException

Prints the code data to the current output stream if code exists (method isn't abstract)

Specified by:

print in interface Printable

Overrides:

print in class Indenter

Throws:

IOException

setSignature

public MemberData<MethodData> setSignature(SignatureData signatureData)

Overrides:

setSignature in class MemberData<MethodData>

getEnvironment

public Environment getEnvironment()

printAnnotations

protected <T extends AnnotationData> void printAnnotations(List<T>... annotationLists)
                                                    throws IOException

Prints ClassData annotations

Overrides:

printAnnotations in class MemberData<MethodData>

Throws:

IOException - signals that an exception of some sort has occurred