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

Example 86 with LabelNode

use of org.objectweb.asm.tree.LabelNode in project maple-ir by LLVM-but-worse.

the class JumpInsnNodeSerializer method deserialize.

@Override
public JumpInsnNode deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
    JsonObject jsonObject = (JsonObject) json;
    int opcode = jsonObject.get("opcode").getAsInt();
    LabelNode labelNode = context.deserialize(jsonObject.get("local"), List.class);
    return new JumpInsnNode(opcode, labelNode);
}

Example 87 with LabelNode

use of org.objectweb.asm.tree.LabelNode in project maple-ir by LLVM-but-worse.

the class ControlFlowGraphDumper method verifyRanges.

private void verifyRanges() {
    for (TryCatchBlockNode tc : m.tryCatchBlocks) {
        int start = -1, end = -1, handler = -1;
        for (int i = 0; i < m.instructions.size(); i++) {
            AbstractInsnNode ain = m.instructions.get(i);
            if (!(ain instanceof LabelNode))
                continue;
            Label l = ((LabelNode) ain).getLabel();
            if (l == tc.start.getLabel())
                start = i;
            if (l == tc.end.getLabel()) {
                if (start == -1)
                    throw new IllegalStateException("Try block end before start " + m);
                end = i;
            }
            if (l == tc.handler.getLabel()) {
                handler = i;
            }
        }
        if (start == -1 || end == -1 || handler == -1)
            throw new IllegalStateException("Try/catch endpoints missing: " + start + " " + end + " " + handler + m);
    }
}

Example 88 with LabelNode

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

the class InstructionPrinter method printLookupSwitchInsnNode.

protected String printLookupSwitchInsnNode(LookupSwitchInsnNode lin) {
    StringBuilder line = new StringBuilder(nameOpcode(lin.getOpcode()) + ": \n");
    List<?> keys = lin.keys;
    List<?> labels = lin.labels;
    for (int i = 0; i < keys.size(); i++) {
        int key = (Integer) keys.get(i);
        LabelNode label = (LabelNode) labels.get(i);
        line.append("                val: ").append(key).append(" -> ").append("L").append(resolveLabel(label)).append("\n");
    }
    line.append("                default" + " -> L").append(resolveLabel(lin.dflt));
    return line.toString();
}

Example 89 with LabelNode

use of org.objectweb.asm.tree.LabelNode in project atlas by alibaba.

the class TBIncrementalSupportVisitor method visitMethod.

/**
 * Insert Constructor specific logic({@link ConstructorRedirection} and
 * {@link ConstructorBuilder}) for constructor redirecting or
 * normal method redirecting ({@link MethodRedirection}) for other methods.
 */
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
    access = transformAccessForInstantRun(access);
    MethodVisitor defaultVisitor = super.visitMethod(access, name, desc, signature, exceptions);
    MethodNode method = checkNotNull(getMethodByNameInClass(name, desc, classNode), "Method found by visitor but not in the pre-parsed class node.");
    if (!supportAddCallSuper) {
        method.instructions.accept(new MethodVisitor(api) {

            @Override
            public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
                if (opcode == Opcodes.INVOKESPECIAL && !owner.equals(visitedClassName)) {
                    visitSuperMethods.add(name + "." + desc);
                }
                super.visitMethodInsn(opcode, owner, name, desc, itf);
            }
        });
    }
    if ((access & Opcodes.ACC_SYNTHETIC) != 0) {
        return defaultVisitor;
    }
    boolean hasIncompatibleChange = InstantRunMethodVerifier.verifyMethod(method) != InstantRunVerifierStatus.COMPATIBLE;
    if (hasIncompatibleChange || disableRedirectionForClass || !isAccessCompatibleWithInstantRun(access) || name.equals(ByteCodeUtils.CLASS_INITIALIZER)) {
        return defaultVisitor;
    } else {
        ArrayList<Type> args = new ArrayList<>(Arrays.asList(Type.getArgumentTypes(desc)));
        boolean isStatic = (access & Opcodes.ACC_STATIC) != 0;
        if (!isStatic) {
            args.add(0, Type.getType(Object.class));
        }
        // Install the Jsr/Ret inliner adapter, we have had reports of code still using the
        // Jsr/Ret deprecated byte codes.
        // see https://code.google.com/p/android/issues/detail?id=220019
        JSRInlinerAdapter jsrInlinerAdapter = new JSRInlinerAdapter(defaultVisitor, access, name, desc, signature, exceptions);
        ISMethodVisitor mv = new ISMethodVisitor(jsrInlinerAdapter, access, name, desc);
        if (name.equals(ByteCodeUtils.CONSTRUCTOR)) {
            if (patchInitMethod) {
                Constructor constructor = ConstructorBuilder.build(visitedClassName, method);
                LabelNode start = new LabelNode();
                method.instructions.insert(constructor.loadThis, start);
                if (constructor.lineForLoad != -1) {
                    // Record the line number from the start of LOAD_0 for uninitialized 'this'.
                    // This allows a breakpoint to be set at the line with this(...) or super(...)
                    // call in the constructor.
                    method.instructions.insert(constructor.loadThis, new LineNumberNode(constructor.lineForLoad, start));
                }
                mv.addRedirection(new TBConstructorRedirection(start, constructor, args));
            } else {
                return defaultVisitor;
            }
        } else {
            mv.addRedirection(new TBMethodRedirection(new LabelNode(mv.getStartLabel()), name + "." + desc, args, Type.getReturnType(desc)));
        }
        method.accept(mv);
        return null;
    }
}