Examples with AbstractInsnNode org.objectweb.asm.tree.AbstractInsnNode used on opensource projects

Example 1 with AbstractInsnNode

use of org.objectweb.asm.tree.AbstractInsnNode in project Valkyrien-Warfare-Revamped by ValkyrienWarfare.

the class SpecificMethodNodeTransformer method instructionsInserter.

public static SpecificMethodNodeTransformer instructionsInserter(String target, int priority, Function<AbstractInsnNode, Pair<InsnList, Boolean>> inserter) {
    return instructionsTransformer(priority, target, instructions -> {
        for (AbstractInsnNode node : instructions.toArray()) {
            Pair<InsnList, Boolean> pair = inserter.apply(node);
            if (pair != null)
                if (pair.getRight())
                    instructions.insertBefore(node, pair.getLeft());
                else
                    instructions.insert(node, pair.getLeft());
        }
    });
}

Example 2 with AbstractInsnNode

use of org.objectweb.asm.tree.AbstractInsnNode in project Minechem by iopleke.

the class MinechemTransformer method injectBytes.

private byte[] injectBytes(Method method, InstructionNode instructionNode, byte[] data) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(data);
    classReader.accept(classNode, ClassReader.EXPAND_FRAMES);
    MethodNode methodNode = getMethodByName(classNode, method);
    AbstractInsnNode pos = findInstructionNode(instructionNode, methodNode);
    if (instructionNode.replace) {
        methodNode.instructions.insertBefore(pos, instructionNode.getInsnList());
        methodNode.instructions.remove(pos);
    } else {
        methodNode.instructions.insertBefore(pos, instructionNode.getInsnList());
    }
    ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 3 with AbstractInsnNode

use of org.objectweb.asm.tree.AbstractInsnNode in project robolectric by robolectric.

the class SandboxClassLoader method box.

public static void box(final Type type, ListIterator<AbstractInsnNode> instructions) {
    if (type.getSort() == Type.OBJECT || type.getSort() == Type.ARRAY) {
        return;
    }
    if (type == Type.VOID_TYPE) {
        instructions.add(new InsnNode(ACONST_NULL));
    } else {
        Type boxed = getBoxedType(type);
        instructions.add(new TypeInsnNode(NEW, boxed.getInternalName()));
        if (type.getSize() == 2) {
            // Pp -> Ppo -> oPpo -> ooPpo -> ooPp -> o
            instructions.add(new InsnNode(DUP_X2));
            instructions.add(new InsnNode(DUP_X2));
            instructions.add(new InsnNode(POP));
        } else {
            // p -> po -> opo -> oop -> o
            instructions.add(new InsnNode(DUP_X1));
            instructions.add(new InsnNode(SWAP));
        }
        instructions.add(new MethodInsnNode(INVOKESPECIAL, boxed.getInternalName(), "<init>", "(" + type.getDescriptor() + ")V"));
    }
}

Example 4 with AbstractInsnNode

use of org.objectweb.asm.tree.AbstractInsnNode in project bytecode-viewer by Konloch.

the class CodeSequenceDiagram method execute.

@Override
public void execute(ArrayList<ClassNode> classNodeList) {
    if (BytecodeViewer.viewer.workPane.getCurrentViewer() == null || !(BytecodeViewer.viewer.workPane.getCurrentViewer() instanceof ClassViewer)) {
        BytecodeViewer.showMessage("First open a class file.");
        return;
    }
    ClassNode c = BytecodeViewer.viewer.workPane.getCurrentViewer().cn;
    if (c == null) {
        BytecodeViewer.showMessage("ClassNode is null for CodeSequenceDiagram. Please report to @Konloch");
        return;
    }
    JFrame frame = null;
    if (c.name != null)
        frame = new JFrame("Code Sequence Diagram - " + c.name);
    else
        frame = new JFrame("Code Sequence Diagram - Unknown Name");
    frame.setIconImages(Resources.iconList);
    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    frame.setSize(400, 320);
    mxGraph graph = new mxGraph();
    graph.setVertexLabelsMovable(false);
    graph.setGridEnabled(true);
    graph.setEnabled(false);
    graph.setCellsEditable(false);
    graph.setCellsSelectable(false);
    graph.setCellsMovable(false);
    graph.setCellsLocked(true);
    Object parent = graph.getDefaultParent();
    Font font = UIManager.getDefaults().getFont("TabbedPane.font");
    AffineTransform affinetransform = new AffineTransform();
    FontRenderContext frc = new FontRenderContext(affinetransform, true, true);
    graph.getModel().beginUpdate();
    try {
        int testX = 10;
        int testY = 0;
        double magicNumber = 5.8;
        for (MethodNode m : (ArrayList<MethodNode>) c.methods) {
            String mIdentifier = c.name + "." + m.name + m.desc;
            Object node = graph.insertVertex(parent, null, mIdentifier, testX, testY, mIdentifier.length() * magicNumber, 30);
            Object attach = node;
            testX += (int) (font.getStringBounds(mIdentifier, frc).getWidth()) + 60;
            for (AbstractInsnNode i : m.instructions.toArray()) {
                if (i instanceof MethodInsnNode) {
                    MethodInsnNode mi = (MethodInsnNode) i;
                    String identifier = mi.owner + "." + mi.name + mi.desc;
                    Object node2 = graph.insertVertex(parent, null, identifier, testX, testY, identifier.length() * 5, 30);
                    testX += (int) (font.getStringBounds(identifier, frc).getWidth()) + 60;
                    graph.insertEdge(parent, null, null, attach, node2);
                    attach = node2;
                }
            }
            testY += 60;
            testX = 10;
        }
    } finally {
        graph.getModel().endUpdate();
    }
    mxGraphComponent graphComponent = new mxGraphComponent(graph);
    frame.getContentPane().add(graphComponent);
    frame.setVisible(true);
}

Example 5 with AbstractInsnNode

use of org.objectweb.asm.tree.AbstractInsnNode in project bytecode-viewer by Konloch.

the class Block method toString.

@Override
public String toString() {
    StringBuilder sb = new StringBuilder(headerString()).append(String.format(" (len=%d)", size()));
    if (PRINT_INSNS && size() > 0) {
        sb.append(System.lineSeparator());
        Iterator<AbstractInsnNode> it = instructions.iterator();
        while (it.hasNext()) {
            AbstractInsnNode ain = it.next();
            if (!(ain instanceof LabelNode)) {
                if (it.hasNext()) {
                    sb.append(String.format("   %s%n", Assembly.toString(ain)));
                } else {
                    sb.append(String.format("   %s", Assembly.toString(ain)));
                }
            }
        }
    }
    sb.append(System.lineSeparator());
    for (Block b : preds) {
        sb.append("   pred: ").append(b.headerString()).append(System.lineSeparator());
    }
    return sb.toString();
}