Package jadx.core.dex.visitors.regions

Class TernaryMod

java.lang.Object

jadx.core.dex.visitors.regions.AbstractRegionVisitor

jadx.core.dex.visitors.regions.TernaryMod

All Implemented Interfaces:

IRegionIterativeVisitor, IRegionVisitor

public class TernaryMod
extends AbstractRegionVisitor
implements IRegionIterativeVisitor

Convert 'if' to ternary operation

Field Summary

Fields

Modifier and Type	Field	Description
private static final TernaryMod	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TernaryMod()

Method Summary

Modifier and Type	Method	Description
private static boolean	checkLineStats(InsnNode t, InsnNode e)	Return 'true' if there are several args with same source lines
private static void	clearConditionBlocks(List<BlockNode> conditionBlocks, BlockNode header)
private static boolean	containsTernary(InsnNode insn)
boolean	enterRegion(MethodNode mth, IRegion region)
private static BlockNode	getTernaryInsnBlock(IContainer thenRegion)
private static boolean	makeTernaryInsn(MethodNode mth, IfRegion ifRegion)
static void	process(MethodNode mth)
private static boolean	processOneBranchTernary(MethodNode mth, IfRegion ifRegion)	Convert one variable change with only 'then' branch: 'if (c) {r = a;}' to 'r = c ? a : r' Convert if 'r' used only once
private static boolean	processRegion(MethodNode mth, IRegion region)
private static void	replaceWithTernary(MethodNode mth, IfRegion ifRegion, BlockNode block, InsnNode insn)
private static boolean	verifyLineHints(MethodNode mth, InsnNode thenInsn, InsnNode elseInsn)
boolean	visitRegion(MethodNode mth, IRegion region)	If return 'true' traversal will be restarted.

Methods inherited from class jadx.core.dex.visitors.regions.AbstractRegionVisitor

leaveRegion, processBlock

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

private static final TernaryMod INSTANCE

Constructor Details

TernaryMod

private TernaryMod()

Method Details

process

public static void process(MethodNode mth)

enterRegion

public boolean enterRegion(MethodNode mth,
 IRegion region)

Specified by:

enterRegion in interface IRegionVisitor

Overrides:

enterRegion in class AbstractRegionVisitor

Returns:

true for traverse sub-blocks, false otherwise.

visitRegion

public boolean visitRegion(MethodNode mth,
 IRegion region)

Description copied from interface: IRegionIterativeVisitor

If return 'true' traversal will be restarted.

Specified by:

visitRegion in interface IRegionIterativeVisitor

processRegion

private static boolean processRegion(MethodNode mth,
 IRegion region)

makeTernaryInsn

private static boolean makeTernaryInsn(MethodNode mth,
 IfRegion ifRegion)

verifyLineHints

private static boolean verifyLineHints(MethodNode mth,
 InsnNode thenInsn,
 InsnNode elseInsn)

clearConditionBlocks

private static void clearConditionBlocks(List<BlockNode> conditionBlocks,
 BlockNode header)

getTernaryInsnBlock

private static BlockNode getTernaryInsnBlock(IContainer thenRegion)

containsTernary

private static boolean containsTernary(InsnNode insn)

checkLineStats

private static boolean checkLineStats(InsnNode t,
 InsnNode e)

Return 'true' if there are several args with same source lines

processOneBranchTernary

private static boolean processOneBranchTernary(MethodNode mth,
 IfRegion ifRegion)

Convert one variable change with only 'then' branch: 'if (c) {r = a;}' to 'r = c ? a : r' Convert if 'r' used only once

replaceWithTernary

private static void replaceWithTernary(MethodNode mth,
 IfRegion ifRegion,
 BlockNode block,
 InsnNode insn)