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

Example 16 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project evosuite by EvoSuite.

the class CastClassAnalyzer method handleMethodNode.

/**
 * Add all possible calls for a given method
 *
 * @param mn
 */
@SuppressWarnings("unchecked")
public void handleMethodNode(ClassNode cn, MethodNode mn, int depth) {
    if (mn.signature != null) {
        logger.debug("Visiting signature: " + mn.signature);
        CollectParameterTypesVisitor visitor = new CollectParameterTypesVisitor(cn.name);
        new SignatureReader(mn.signature).accept(visitor);
        for (Type castType : visitor.getClasses()) {
            if (!castClassMap.containsKey(castType)) {
                logger.debug("Adding new cast class from signature visitor: " + castType);
                castClassMap.put(castType, depth + 1);
            }
        }
    }
    InsnList instructions = mn.instructions;
    Iterator<AbstractInsnNode> iterator = instructions.iterator();
    // TODO: This really shouldn't be here but in its own class
    while (iterator.hasNext()) {
        AbstractInsnNode insn = iterator.next();
        if (insn.getOpcode() == Opcodes.CHECKCAST) {
            TypeInsnNode typeNode = (TypeInsnNode) insn;
            Type castType = Type.getObjectType(typeNode.desc);
            while (castType.getSort() == Type.ARRAY) {
                castType = castType.getElementType();
            }
            logger.debug("Adding new cast class from cast: " + castType);
            if (!castClassMap.containsKey(castType))
                castClassMap.put(castType, depth + 1);
        } else if (insn.getOpcode() == Opcodes.INSTANCEOF) {
            TypeInsnNode typeNode = (TypeInsnNode) insn;
            Type castType = Type.getObjectType(typeNode.desc);
            while (castType.getSort() == Type.ARRAY) {
                castType = castType.getElementType();
            }
            logger.debug("Adding new cast class from instanceof: " + castType);
            if (!castClassMap.containsKey(castType))
                castClassMap.put(castType, depth + 1);
        } else if (insn.getOpcode() == Opcodes.LDC) {
            LdcInsnNode ldcNode = (LdcInsnNode) insn;
            if (ldcNode.cst instanceof Type) {
                Type type = (Type) ldcNode.cst;
                while (type.getSort() == Type.ARRAY) {
                    type = type.getElementType();
                }
                if (!castClassMap.containsKey(type))
                    castClassMap.put(type, depth + 1);
            }
        }
    }
}

Example 17 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project Random-Things by lumien231.

the class ClassTransformer method patchEntityLivingBase.

private byte[] patchEntityLivingBase(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found EntityLivingBase Class: " + classNode.name);
    MethodNode updatePotionEffects = null;
    MethodNode travel = null;
    for (MethodNode mn : classNode.methods) {
        if (mn.name.equals(MCPNames.method("func_70679_bo"))) {
            updatePotionEffects = mn;
        } else if (mn.name.equals(MCPNames.method("func_191986_a"))) {
            travel = mn;
        }
    }
    if (updatePotionEffects != null) {
        logger.log(Level.DEBUG, "- Found updatePotionEffects (1/2)");
        for (int i = 0; i < updatePotionEffects.instructions.size(); i++) {
            AbstractInsnNode ain = updatePotionEffects.instructions.get(i);
            if (ain instanceof FieldInsnNode) {
                FieldInsnNode fin = (FieldInsnNode) ain;
                if (fin.name.equals(MCPNames.field("field_70180_af"))) {
                    AbstractInsnNode aload = updatePotionEffects.instructions.get(i - 1);
                    InsnList toInsert = new InsnList();
                    LabelNode l1 = new LabelNode(new Label());
                    toInsert.add(new VarInsnNode(ALOAD, 0));
                    toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "shouldRenderPotionParticles", "(Lnet/minecraft/entity/EntityLivingBase;)Z", false));
                    toInsert.add(new JumpInsnNode(IFGT, l1));
                    toInsert.add(new InsnNode(RETURN));
                    toInsert.add(l1);
                    updatePotionEffects.instructions.insertBefore(aload, toInsert);
                    break;
                }
            }
        }
    }
    if (travel != null) {
        logger.log(Level.DEBUG, "- Found travel (2/2)");
        for (int i = 0; i < travel.instructions.size(); i++) {
            AbstractInsnNode ain = travel.instructions.get(i);
            if (ain instanceof LdcInsnNode) {
                LdcInsnNode lin = (LdcInsnNode) ain;
                if (lin.cst.equals(new Float("0.91"))) {
                    AbstractInsnNode next = travel.instructions.get(i + 1);
                    if (next.getOpcode() == Opcodes.FMUL) {
                        InsnList toInsert = new InsnList();
                        toInsert.add(new VarInsnNode(ALOAD, 0));
                        toInsert.add(new VarInsnNode(ALOAD, 0));
                        toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraft/entity/EntityLivingBase", MCPNames.field("field_70170_p"), "Lnet/minecraft/world/World;"));
                        toInsert.add(new VarInsnNode(ALOAD, 5));
                        toInsert.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraft/world/World", MCPNames.method("func_180495_p"), "(Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/block/state/IBlockState;", false));
                        toInsert.add(new MethodInsnNode(INVOKEINTERFACE, "net/minecraft/block/state/IBlockState", MCPNames.method("func_177230_c"), "()Lnet/minecraft/block/Block;", true));
                        toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "slipFix", "(FLnet/minecraft/entity/EntityLivingBase;Lnet/minecraft/block/Block;)F", false));
                        travel.instructions.insert(next, toInsert);
                        i += 6;
                    }
                }
            }
        }
    }
    CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 18 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project Random-Things by lumien231.

the class ClassTransformer method patchRenderItem.

private byte[] patchRenderItem(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found RenderItem Class: " + classNode.name);
    MethodNode renderEffect = null;
    MethodNode renderItem = null;
    MethodNode renderQuads = null;
    for (MethodNode mn : classNode.methods) {
        if (mn.name.equals(MCPNames.method("func_191966_a"))) {
            renderEffect = mn;
        } else if (mn.name.equals(MCPNames.method("func_180454_a")) && mn.desc.equals("(Lnet/minecraft/item/ItemStack;Lnet/minecraft/client/renderer/block/model/IBakedModel;)V")) {
            renderItem = mn;
        } else if (mn.name.equals(MCPNames.method("func_191970_a"))) {
            renderQuads = mn;
        }
    }
    if (renderEffect != null) {
        logger.log(Level.DEBUG, "- Found renderEffect (1/3)");
        renderEffect.instructions.insert(new MethodInsnNode(INVOKESTATIC, asmHandler, "preEnchantment", "()V", false));
        for (int i = 0; i < renderEffect.instructions.size(); i++) {
            AbstractInsnNode ain = renderEffect.instructions.get(i);
            if (ain instanceof LdcInsnNode) {
                LdcInsnNode lin = (LdcInsnNode) ain;
                if (lin.cst.equals(new Integer(-8372020))) {
                    logger.log(Level.DEBUG, "- Found Texture Binding");
                    renderEffect.instructions.insert(lin, new MethodInsnNode(INVOKESTATIC, asmHandler, "enchantmentColorHook", "(I)I", false));
                }
            } else if (ain.getOpcode() == RETURN) {
                renderEffect.instructions.insertBefore(ain, new MethodInsnNode(INVOKESTATIC, asmHandler, "postEnchantment", "()V", false));
                i++;
            }
        }
    }
    if (renderItem != null) {
        boolean found = false;
        logger.log(Level.DEBUG, "- Found renderItem (2/3) (" + renderItem.desc + ")");
        for (int i = 0; i < renderItem.instructions.size(); i++) {
            AbstractInsnNode ain = renderItem.instructions.get(i);
            if (ain instanceof MethodInsnNode) {
                MethodInsnNode min = (MethodInsnNode) ain;
                if (!found) {
                    if (min.name.equals(MCPNames.method("func_191966_a"))) {
                        logger.log(Level.DEBUG, "- Found renderEffect calling");
                        InsnList toInsert = new InsnList();
                        toInsert.add(new VarInsnNode(ALOAD, 1));
                        toInsert.add(new FieldInsnNode(PUTSTATIC, asmHandler, "currentlyRendering", "Lnet/minecraft/item/ItemStack;"));
                        renderItem.instructions.insertBefore(min, toInsert);
                        toInsert = new InsnList();
                        toInsert.add(new InsnNode(ACONST_NULL));
                        toInsert.add(new FieldInsnNode(PUTSTATIC, asmHandler, "currentlyRendering", "Lnet/minecraft/item/ItemStack;"));
                        renderItem.instructions.insert(min, toInsert);
                        found = true;
                    }
                }
                if (min.name.equals(MCPNames.method("func_179022_a"))) {
                    LabelNode l1 = new LabelNode(new Label());
                    LabelNode l2 = new LabelNode(new Label());
                    logger.log(Level.DEBUG, "- Inserting TE Item Renderer");
                    InsnList insertBefore = new InsnList();
                    insertBefore.add(new FieldInsnNode(GETSTATIC, "lumien/randomthings/client/RandomThingsTEItemRenderer", "instance", "Llumien/randomthings/client/RandomThingsTEItemRenderer;"));
                    insertBefore.add(new VarInsnNode(ALOAD, 1));
                    insertBefore.add(new MethodInsnNode(INVOKEVIRTUAL, "lumien/randomthings/client/RandomThingsTEItemRenderer", "renderByItem", "(Lnet/minecraft/item/ItemStack;)Z", false));
                    insertBefore.add(new JumpInsnNode(IFEQ, l2));
                    insertBefore.add(new InsnNode(POP));
                    insertBefore.add(new InsnNode(POP));
                    insertBefore.add(new JumpInsnNode(GOTO, l1));
                    insertBefore.add(l2);
                    InsnList insertAfter = new InsnList();
                    insertAfter.add(l1);
                    renderItem.instructions.insertBefore(min, insertBefore);
                    renderItem.instructions.insert(min, insertAfter);
                    i += 8;
                }
            }
        }
    }
    if (renderQuads != null) {
        logger.log(Level.DEBUG, "- Found renderQuads (3/3) (" + renderQuads.desc + ")");
        String luminousHandler = "lumien/randomthings/handler/LuminousHandler";
        InsnList startInsrt = new InsnList();
        startInsrt.add(new VarInsnNode(ALOAD, 4));
        startInsrt.add(new VarInsnNode(ALOAD, 1));
        startInsrt.add(new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookStart", "(Lnet/minecraft/item/ItemStack;Lnet/minecraft/client/renderer/BufferBuilder;)V", false));
        renderQuads.instructions.insert(startInsrt);
        for (int i = 0; i < renderQuads.instructions.size(); i++) {
            AbstractInsnNode ain = renderQuads.instructions.get(i);
            if (ain instanceof MethodInsnNode) {
                MethodInsnNode min = (MethodInsnNode) ain;
                if (min.name.equals("renderQuadColor")) {
                    InsnList toInsert = new InsnList();
                    toInsert.add(new VarInsnNode(ALOAD, 8));
                    toInsert.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraft/client/renderer/block/model/BakedQuad", MCPNames.method("func_178211_c"), "()I", false));
                    toInsert.add(new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookPre", "(I)V", false));
                    toInsert.add(new InsnNode(POP));
                    toInsert.add(new VarInsnNode(ALOAD, 4));
                    toInsert.add(new VarInsnNode(ILOAD, 9));
                    toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "getColorFromItemStack", "(Lnet/minecraft/item/ItemStack;I)I", false));
                    renderQuads.instructions.insertBefore(min, toInsert);
                    i += 7;
                    renderQuads.instructions.insert(min, new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookPost", "()V", false));
                }
            } else if (ain.getOpcode() == RETURN) {
                renderQuads.instructions.insertBefore(ain, new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookEnd", "()V", false));
                i++;
            }
        }
    }
    CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 19 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project runelite by runelite.

the class InstructionDeserializer method deserialize.

@Override
public AbstractInsnNode deserialize(JsonElement var1, Type var2, JsonDeserializationContext var3) {
    JsonObject var4 = (JsonObject) var1;
    int var5 = var4.get("opcode").getAsInt();
    if (var5 != 21 && var5 != 25 && var5 != 58 && var5 != 54 && var5 != 22 && var5 != 55) {
        String var7;
        String var8;
        String var10;
        if (var5 != 184 && var5 != 182 && var5 != 183) {
            if (var5 == 18) {
                try {
                    return new LdcInsnNode(Integer.valueOf(var4.get("cst").getAsInt()));
                } catch (Exception var9) {
                    return new LdcInsnNode(var4.get("cst").getAsString());
                }
            } else if (var5 != 187 && var5 != 189) {
                if (var5 != 16 && var5 != 17) {
                    if (var5 != 179 && var5 != 178 && var5 != 180 && var5 != 181) {
                        return new InsnNode(var5);
                    } else {
                        var10 = var4.get("owner").getAsString();
                        var7 = var4.get("name").getAsString();
                        var8 = var4.get("desc").getAsString();
                        return new FieldInsnNode(var5, var10, var7, var8);
                    }
                } else {
                    return new IntInsnNode(var5, var4.get("operand").getAsInt());
                }
            } else {
                return new TypeInsnNode(var5, var4.get("desc").getAsString());
            }
        } else {
            var10 = var4.get("owner").getAsString();
            var7 = var4.get("name").getAsString();
            var8 = var4.get("desc").getAsString();
            return new MethodInsnNode(var5, var10, var7, var8);
        }
    } else {
        int var6 = var4.get("var").getAsInt();
        return new VarInsnNode(var5, var6);
    }
}

Example 20 with LdcInsnNode

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

the class RegexInsnFinder method getInsString.

private static String getInsString(AbstractInsnNode ain) {
    String insnString = "";
    switch(ain.getType()) {
        case AbstractInsnNode.INT_INSN:
            final IntInsnNode iin = (IntInsnNode) ain;
            insnString += "{" + iin.operand + "}";
            break;
        case AbstractInsnNode.LDC_INSN:
            final LdcInsnNode lin = (LdcInsnNode) ain;
            insnString += "{" + lin.cst.toString().replace("}", "\\}") + "}";
            break;
        case AbstractInsnNode.VAR_INSN:
            final VarInsnNode vin = (VarInsnNode) ain;
            insnString += "_" + vin.var;
            break;
        case AbstractInsnNode.IINC_INSN:
            final IincInsnNode iiin = (IincInsnNode) ain;
            insnString += "{" + iiin.var + "," + iiin.incr + "}";
            break;
        case AbstractInsnNode.FIELD_INSN:
            final FieldInsnNode fin = (FieldInsnNode) ain;
            insnString += "{" + fin.desc + "," + fin.owner + "," + fin.name + "}";
            break;
        case AbstractInsnNode.METHOD_INSN:
            final MethodInsnNode min = (MethodInsnNode) ain;
            insnString += "{" + min.desc + "," + min.owner + "," + min.name + "}";
            break;
        case AbstractInsnNode.TYPE_INSN:
            final TypeInsnNode tin = (TypeInsnNode) ain;
            insnString += "{" + tin.desc + "}";
            break;
        case AbstractInsnNode.MULTIANEWARRAY_INSN:
            final MultiANewArrayInsnNode manain = (MultiANewArrayInsnNode) ain;
            insnString += "{" + manain.dims + "," + manain.desc + "}";
            break;
    }
    return insnString;
}