Class SwitchReplacer

java.lang.Object

org.benf.cfr.reader.bytecode.analysis.opgraph.op3rewriters.SwitchReplacer

public class SwitchReplacer
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SwitchReplacer.NodeReachable
private static class	SwitchReplacer.NodesReachedUntil

Constructor Summary

Constructors

Constructor	Description
SwitchReplacer()

Method Summary

Modifier and Type	Method	Description
private static boolean	blockIsContiguous(List<Op03SimpleStatement> in, Op03SimpleStatement start, Set<Op03SimpleStatement> blockContent)
private static void	buildSwitchCases(Op03SimpleStatement swatch, List<Op03SimpleStatement> targets, BlockIdentifier switchBlockIdentifier, List<Op03SimpleStatement> in, boolean forcedOrder)
private static int	checkPreSwitchJump(List<Op03SimpleStatement> statements, Op03SimpleStatement switchStm, int idxLastStart, int idxLastEnd)
private static Op03SimpleStatement	examineSwitchContiguity(Op03SimpleStatement switchStatement, List<Op03SimpleStatement> statements, boolean pullCodeIntoCase, boolean allowMalformedSwitch, DecompilerComments comments, BytecodeMeta bytecodeMeta)
private static int	getDefault(DecodedSwitch decodedSwitch)
private static void	moveInternalJumpsToTerminal(Op03SimpleStatement switchStatement, List<Op03SimpleStatement> statements, Op03SimpleStatement lastTgt, Op03SimpleStatement following, List<Op03SimpleStatement> forwardJumpSources)
private static void	moveJumpsToCaseStatements(Op03SimpleStatement switchStatement)
private static void	moveJumpsToTerminalIfEmpty(Op03SimpleStatement switchStatement, List<Op03SimpleStatement> statements)
private static Op03SimpleStatement	moveSwitch(Op03SimpleStatement switchStatement, List<Op03SimpleStatement> statements, Op03SimpleStatement firstCase, int idxFirstCase, List<Op03SimpleStatement> targets)
static void	rebuildSwitches(List<Op03SimpleStatement> statements, Options options, DecompilerComments comments, BytecodeMeta bytecodeMeta)
private static Op03SimpleStatement	replaceRawSwitch(Method method, Op03SimpleStatement swatch, List<Op03SimpleStatement> in, BlockIdentifierFactory blockIdentifierFactory, Options options)
static void	replaceRawSwitches(Method method, List<Op03SimpleStatement> in, BlockIdentifierFactory blockIdentifierFactory, Options options, DecompilerComments comments, BytecodeMeta bytecodeMeta)
static List<Op03SimpleStatement>	rewriteDuff(List<Op03SimpleStatement> statements, VariableFactory vf, DecompilerComments decompilerComments, Options options)
private static boolean	rewriteDuff(Op03SimpleStatement switchStatement, List<Op03SimpleStatement> statements, VariableFactory vf, DecompilerComments decompilerComments)
private static void	tightenJumpsToTerminal(List<Op03SimpleStatement> statements, BlockIdentifier switchBlock, Op03SimpleStatement following, Op03SimpleStatement followingTrans)
private static void	tryInlineRawSwitchContent(Op03SimpleStatement switchStatement, List<Op03SimpleStatement> statements)

Methods inherited from class Object

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

Constructor Details

SwitchReplacer

public SwitchReplacer()

Method Details

replaceRawSwitches

public static void replaceRawSwitches(Method method,
 List<Op03SimpleStatement> in,
 BlockIdentifierFactory blockIdentifierFactory,
 Options options,
 DecompilerComments comments,
 BytecodeMeta bytecodeMeta)

rewriteDuff

public static List<Op03SimpleStatement> rewriteDuff(List<Op03SimpleStatement> statements,
 VariableFactory vf,
 DecompilerComments decompilerComments,
 Options options)

replaceRawSwitch

private static Op03SimpleStatement replaceRawSwitch(Method method,
 Op03SimpleStatement swatch,
 List<Op03SimpleStatement> in,
 BlockIdentifierFactory blockIdentifierFactory,
 Options options)

buildSwitchCases

private static void buildSwitchCases(Op03SimpleStatement swatch,
 List<Op03SimpleStatement> targets,
 BlockIdentifier switchBlockIdentifier,
 List<Op03SimpleStatement> in,
 boolean forcedOrder)

rebuildSwitches

public static void rebuildSwitches(List<Op03SimpleStatement> statements,
 Options options,
 DecompilerComments comments,
 BytecodeMeta bytecodeMeta)

blockIsContiguous

private static boolean blockIsContiguous(List<Op03SimpleStatement> in,
 Op03SimpleStatement start,
 Set<Op03SimpleStatement> blockContent)

examineSwitchContiguity

private static Op03SimpleStatement examineSwitchContiguity(Op03SimpleStatement switchStatement,
 List<Op03SimpleStatement> statements,
 boolean pullCodeIntoCase,
 boolean allowMalformedSwitch,
 DecompilerComments comments,
 BytecodeMeta bytecodeMeta)

checkPreSwitchJump

private static int checkPreSwitchJump(List<Op03SimpleStatement> statements,
 Op03SimpleStatement switchStm,
 int idxLastStart,
 int idxLastEnd)

moveSwitch

private static Op03SimpleStatement moveSwitch(Op03SimpleStatement switchStatement,
 List<Op03SimpleStatement> statements,
 Op03SimpleStatement firstCase,
 int idxFirstCase,
 List<Op03SimpleStatement> targets)

moveJumpsToCaseStatements

private static void moveJumpsToCaseStatements(Op03SimpleStatement switchStatement)

moveJumpsToTerminalIfEmpty

private static void moveJumpsToTerminalIfEmpty(Op03SimpleStatement switchStatement,
 List<Op03SimpleStatement> statements)

tightenJumpsToTerminal

private static void tightenJumpsToTerminal(List<Op03SimpleStatement> statements,
 BlockIdentifier switchBlock,
 Op03SimpleStatement following,
 Op03SimpleStatement followingTrans)

moveInternalJumpsToTerminal

private static void moveInternalJumpsToTerminal(Op03SimpleStatement switchStatement,
 List<Op03SimpleStatement> statements,
 Op03SimpleStatement lastTgt,
 Op03SimpleStatement following,
 List<Op03SimpleStatement> forwardJumpSources)

getDefault

private static int getDefault(DecodedSwitch decodedSwitch)

tryInlineRawSwitchContent

private static void tryInlineRawSwitchContent(Op03SimpleStatement switchStatement,
 List<Op03SimpleStatement> statements)

rewriteDuff

private static boolean rewriteDuff(Op03SimpleStatement switchStatement,
 List<Op03SimpleStatement> statements,
 VariableFactory vf,
 DecompilerComments decompilerComments)