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

Example 61 with MethodNode

use of org.objectweb.asm.tree.MethodNode in project Galacticraft by micdoodle8.

the class TweakTransformer method load.

public static void load() {
    CodeChickenCoreModContainer.loadConfig();
    tweaks = CodeChickenCoreModContainer.config.getTag("tweaks").setComment("Various tweaks that can be applied to game mechanics.").useBraces();
    tweaks.removeTag("persistantLava");
    if (tweaks.getTag("environmentallyFriendlyCreepers").setComment("If set to true, creepers will not destroy landscape. (A version of mobGriefing setting just for creepers)").getBooleanValue(false)) {
        transformer.add(new MethodReplacer(new ObfMapping("net/minecraft/entity/monster/EntityCreeper", "func_146077_cc", "()V"), blocks.get("d_environmentallyFriendlyCreepers"), blocks.get("environmentallyFriendlyCreepers")));
    }
    if (tweaks.getTag("finiteWater").setComment("If set to true two adjacent water source blocks will not generate a third.").getBooleanValue(false)) {
        transformer.add(new MethodTransformer(new ObfMapping("net/minecraft/block/BlockDynamicLiquid", "func_149674_a", "(Lnet/minecraft/world/World;IIILjava/util/Random;)V")) {

            @Override
            public void transform(MethodNode mv) {
                InsnListSection key = findOnce(mv.instructions, blocks.get("finiteWater").list);
                key.setLast(((JumpInsnNode) key.getLast()).label);
                key.remove();
            }
        });
    }
}

Example 62 with MethodNode

use of org.objectweb.asm.tree.MethodNode in project openj9 by eclipse.

the class ClassFileCompare method isValidInvokeVirtualConversion.

private boolean isValidInvokeVirtualConversion(ClassNode clazz, MethodNode method, AbstractInsnNode insn1, AbstractInsnNode insn2) {
    if (Opcodes.INVOKEVIRTUAL == insn1.getOpcode() && Opcodes.INVOKESPECIAL == insn2.getOpcode()) {
        MethodInsnNode methodInsn1 = (MethodInsnNode) insn1;
        MethodInsnNode methodInsn2 = (MethodInsnNode) insn2;
        /*
			 * The class name as well as the method name involved are checked by
			 * comparing their method owner name(the internal name of the
			 * method's class) and name (the method's name)
			 */
        if (methodInsn1.owner.equals(methodInsn2.owner) && methodInsn1.name.equals(methodInsn2.name) && methodInsn1.desc.equals(methodInsn2.desc)) {
            /*
				 * Both methods should be compared further in terms of their
				 * access flag(has to be private) if they are not the 6 final
				 * methods of Object listed as follows: 
				 * name     descriptor 
				 * wait      ()V
				 * wait      (J)V 
				 * wait      (JI)V 
				 * notify    ()V 
				 * notifyAll ()V 
				 * getClass  ()Ljava/lang/Class;
				 */
            if (methodInsn1.owner.equals("java/lang/Object") && specialObjectMethods.contains(methodInsn1.name + methodInsn1.desc)) {
                return true;
            }
            @SuppressWarnings("unchecked") List<MethodNode> methodNodes1 = new ArrayList<>(clazz.methods);
            for (MethodNode mn : methodNodes1) {
                if (mn.name.equals(methodInsn1.name) && mn.desc.equals(methodInsn1.desc)) {
                    return Opcodes.ACC_PRIVATE == mn.access;
                }
            }
        }
    }
    return false;
}

Example 63 with MethodNode

use of org.objectweb.asm.tree.MethodNode in project phosphor by gmu-swe.

the class CallGraphBuildingClassVisitor method visitMethod.

@Override
public MethodVisitor visitMethod(int access, final String name, final String desc, String signature, String[] exceptions) {
    final MethodInformation thisMIN = graph.getMethodNode(className, name, desc);
    Instrumenter.classes.get(className).methods.add(new MethodNode(access, name, desc, signature, exceptions));
    thisMIN.setVisited(true);
    if ((access & Opcodes.ACC_NATIVE) != 0)
        thisMIN.setPure(false);
    return new MethodVisitor(Opcodes.ASM5, super.visitMethod(access, name, desc, signature, exceptions)) {

        @Override
        public void visitMethodInsn(int opcode, String _owner, String _name, String _desc, boolean intfc) {
            super.visitMethodInsn(opcode, _owner, _name, _desc, intfc);
            if (!(opcode == Opcodes.INVOKESPECIAL && _owner.equals("java/lang/Object")))
                graph.addEdge(className, name, desc, _owner, _name, _desc);
            if (_owner.equals("java/lang/reflect/Method") && name.equals("invoke"))
                thisMIN.setCallsTaintedMethods(true);
            if (opcode == Opcodes.INVOKESTATIC)
                graph.addEdge(className, name, desc, _owner, "<clinit>", "()V");
        }

        @Override
        public void visitFieldInsn(int opcode, String owner, String name, String desc) {
            super.visitFieldInsn(opcode, owner, name, desc);
            thisMIN.setPure(false);
            if (opcode == Opcodes.GETSTATIC || opcode == Opcodes.PUTSTATIC)
                graph.addEdge(className, name, desc, owner, "<clinit>", "()V");
        }

        @Override
        public void visitTypeInsn(int opcode, String type) {
            super.visitTypeInsn(opcode, type);
            if (opcode == Opcodes.NEW)
                graph.addEdge(className, name, desc, type, "<clinit>", "()V");
        }
    };
}

Example 64 with MethodNode

use of org.objectweb.asm.tree.MethodNode in project DynamicSurroundings by OreCruncher.

the class PatchSoundManagerClampVolume method transmorgrify.

@Override
public boolean transmorgrify(final ClassNode cn) {
    final String[] names = { "getClampedVolume", "func_188770_e" };
    final String sig = "(Lnet/minecraft/client/audio/ISound;)F";
    final MethodNode m = findMethod(cn, sig, names);
    if (m != null) {
        logMethod(Transformer.log(), m, "Found!");
        final String owner = "org/blockartistry/DynSurround/client/sound/SoundEngine";
        final String targetName = "getClampedVolume";
        final String sig1 = "(Lnet/minecraft/client/audio/ISound;)F";
        final InsnList list = new InsnList();
        list.add(new VarInsnNode(ALOAD, 1));
        list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, owner, targetName, sig1, false));
        list.add(new InsnNode(Opcodes.FRETURN));
        m.instructions = list;
        return true;
    } else {
        Transformer.log().error("Unable to locate method {}{}", names[0], sig);
    }
    Transformer.log().info("Unable to patch [{}]!", getClassName());
    return false;
}

Example 65 with MethodNode

use of org.objectweb.asm.tree.MethodNode in project DynamicSurroundings by OreCruncher.

the class PatchSoundManager method transmorgrify.

@Override
public boolean transmorgrify(final ClassNode cn) {
    final String[] names = { "getURLForSoundResource", "func_148612_a" };
    final String sig = "(Lnet/minecraft/util/ResourceLocation;)Ljava/net/URL;";
    final MethodNode m = findMethod(cn, sig, names);
    if (m != null) {
        logMethod(Transformer.log(), m, "Found!");
        final InsnList list = new InsnList();
        list.add(new VarInsnNode(ALOAD, 0));
        final String owner = "org/blockartistry/lib/sound/SoundCache";
        final String targetName = "getURLForSoundResource";
        final String sig1 = "(Lnet/minecraft/util/ResourceLocation;)Ljava/net/URL;";
        list.add(new MethodInsnNode(INVOKESTATIC, owner, targetName, sig1, false));
        list.add(new InsnNode(ARETURN));
        m.instructions.insert(m.instructions.getFirst(), list);
        return true;
    } else {
        Transformer.log().error("Unable to locate method {}{}", names[0], sig);
    }
    Transformer.log().info("Unable to patch [{}]!", getClassName());
    return false;
}