Examples with BlockNode jadx.core.dex.nodes.BlockNode used on opensource projects

Example 21 with BlockNode

use of jadx.core.dex.nodes.BlockNode in project jadx by skylot.

the class BlockSplitter method insertBlockBetween.

static BlockNode insertBlockBetween(MethodNode mth, BlockNode source, BlockNode target) {
    BlockNode newBlock = startNewBlock(mth, target.getStartOffset());
    newBlock.add(AFlag.SYNTHETIC);
    removeConnection(source, target);
    connect(source, newBlock);
    connect(newBlock, target);
    return newBlock;
}

Example 22 with BlockNode

use of jadx.core.dex.nodes.BlockNode in project jadx by skylot.

the class DebugInfoVisitor method visit.

@Override
public void visit(MethodNode mth) throws JadxException {
    int debugOffset = mth.getDebugInfoOffset();
    if (debugOffset > 0) {
        InsnNode[] insnArr = mth.getInstructions();
        DebugInfoParser debugInfoParser = new DebugInfoParser(mth, debugOffset, insnArr);
        debugInfoParser.process();
        // set method source line from first instruction
        if (insnArr.length != 0) {
            for (InsnNode insn : insnArr) {
                if (insn != null) {
                    int line = insn.getSourceLine();
                    if (line != 0) {
                        mth.setSourceLine(line - 1);
                    }
                    break;
                }
            }
        }
        if (!mth.getReturnType().equals(ArgType.VOID)) {
            // fix debug info for splitter 'return' instructions
            for (BlockNode exit : mth.getExitBlocks()) {
                InsnNode ret = BlockUtils.getLastInsn(exit);
                if (ret == null) {
                    continue;
                }
                InsnNode oldRet = insnArr[ret.getOffset()];
                if (oldRet == ret) {
                    continue;
                }
                RegisterArg oldArg = (RegisterArg) oldRet.getArg(0);
                RegisterArg newArg = (RegisterArg) ret.getArg(0);
                newArg.mergeDebugInfo(oldArg.getType(), oldArg.getName());
                ret.setSourceLine(oldRet.getSourceLine());
            }
        }
    }
    mth.unloadInsnArr();
}

Example 23 with BlockNode

use of jadx.core.dex.nodes.BlockNode in project jadx by skylot.

the class DependencyCollector method processMethod.

private static void processMethod(DexNode dex, Set<ClassNode> depList, MethodNode methodNode) {
    addDep(dex, depList, methodNode.getParentClass());
    addDep(dex, depList, methodNode.getReturnType());
    for (ArgType arg : methodNode.getMethodInfo().getArgumentsTypes()) {
        addDep(dex, depList, arg);
    }
    for (BlockNode block : methodNode.getBasicBlocks()) {
        for (InsnNode insnNode : block.getInstructions()) {
            processInsn(dex, depList, insnNode);
        }
    }
}

Example 24 with BlockNode

use of jadx.core.dex.nodes.BlockNode in project jadx by skylot.

the class BlockSplitter method connectExceptionHandlers.

private static void connectExceptionHandlers(Map<Integer, BlockNode> blocksMap, BlockNode block, InsnNode insn) {
    CatchAttr catches = insn.get(AType.CATCH_BLOCK);
    SplitterBlockAttr spl = block.get(AType.SPLITTER_BLOCK);
    if (catches == null || spl == null) {
        return;
    }
    BlockNode splitterBlock = spl.getBlock();
    boolean tryEnd = insn.contains(AFlag.TRY_LEAVE);
    for (ExceptionHandler h : catches.getTryBlock().getHandlers()) {
        BlockNode handlerBlock = getBlock(h.getHandleOffset(), blocksMap);
        // skip self loop in handler
        if (splitterBlock != handlerBlock) {
            if (!handlerBlock.contains(AType.SPLITTER_BLOCK)) {
                handlerBlock.addAttr(spl);
            }
            connect(splitterBlock, handlerBlock);
        }
        if (tryEnd) {
            connect(block, handlerBlock);
        }
    }
}

Example 25 with BlockNode

use of jadx.core.dex.nodes.BlockNode in project jadx by skylot.

the class RegionMaker method processHandlersOutBlocks.

/**
	 * Search handlers successor blocks not included in any region.
	 */
protected IRegion processHandlersOutBlocks(MethodNode mth, Set<TryCatchBlock> tcs) {
    Set<IBlock> allRegionBlocks = new HashSet<IBlock>();
    RegionUtils.getAllRegionBlocks(mth.getRegion(), allRegionBlocks);
    Set<IBlock> succBlocks = new HashSet<IBlock>();
    for (TryCatchBlock tc : tcs) {
        for (ExceptionHandler handler : tc.getHandlers()) {
            IContainer region = handler.getHandlerRegion();
            if (region != null) {
                IBlock lastBlock = RegionUtils.getLastBlock(region);
                if (lastBlock instanceof BlockNode) {
                    succBlocks.addAll(((BlockNode) lastBlock).getSuccessors());
                }
                RegionUtils.getAllRegionBlocks(region, allRegionBlocks);
            }
        }
    }
    succBlocks.removeAll(allRegionBlocks);
    if (succBlocks.isEmpty()) {
        return null;
    }
    Region excOutRegion = new Region(mth.getRegion());
    for (IBlock block : succBlocks) {
        if (block instanceof BlockNode) {
            excOutRegion.add(makeRegion((BlockNode) block, new RegionStack(mth)));
        }
    }
    return excOutRegion;
}