Example usage for org.objectweb.asm Type getArgumentTypes

List of usage examples for org.objectweb.asm Type getArgumentTypes

Introduction

In this page you can find the example usage for org.objectweb.asm Type getArgumentTypes.

Prototype

public static Type[] getArgumentTypes(final Method method) 

Source Link

Document

Returns the Type values corresponding to the argument types of the given method.

Usage

From source file:analysis.ReferenceGenerator.java

License:Open Source License

private void refMethodDesc(String desc) {
    Type[] args = Type.getArgumentTypes(desc);
    for (Type arg : args) {
        addTypeClassRef(arg);//w w  w  .  j a va  2 s  .co m
    }

    Type retType = Type.getReturnType(desc);
    addTypeClassRef(retType);
}

From source file:apb.processors.NotNullClassInstrumenter.java

License:Apache License

public MethodVisitor visitMethod(final int access, final String name, String desc, String signature,
        String[] exceptions) {/*from  www.  ja v  a  2  s.  c om*/
    final Type[] args = Type.getArgumentTypes(desc);
    final Type returnType = Type.getReturnType(desc);

    MethodVisitor v = cv.visitMethod(access, name, desc, signature, exceptions);
    return new MethodAdapter(v) {
        @Override
        public AnnotationVisitor visitParameterAnnotation(int parameter, String anno, boolean visible) {
            final AnnotationVisitor result = mv.visitParameterAnnotation(parameter, anno, visible);

            if (NotNullClassInstrumenter.isReferenceType(args[parameter])
                    && anno.equals(NOT_NULL_ANNOATATION_SIGNATURE)) {
                notNullParams.add(parameter);
            }

            return result;
        }

        @Override
        public AnnotationVisitor visitAnnotation(String anno, boolean isRuntime) {
            final AnnotationVisitor av = mv.visitAnnotation(anno, isRuntime);

            if (isReferenceType(returnType) && anno.equals(NOT_NULL_ANNOATATION_SIGNATURE)) {
                isResultNotNull = true;
            }

            return av;
        }

        @Override
        public void visitCode() {
            if (isResultNotNull || !notNullParams.isEmpty()) {
                startGeneratedCodeLabel = new Label();
                mv.visitLabel(startGeneratedCodeLabel);
            }

            for (int nullParam : notNullParams) {
                int var = (access & 8) != 0 ? 0 : 1;

                for (int i = 0; i < nullParam; i++) {
                    var += args[i].getSize();
                }

                mv.visitVarInsn(Opcodes.ALOAD, var);
                Label end = new Label();
                mv.visitJumpInsn(Opcodes.IFNONNULL, end);
                generateThrow(
                        ILLEGAL_STATE_EXCEPTION_SIGNATURE, "Argument " + nullParam
                                + " for @NotNull parameter of " + className + "." + name + " must not be null",
                        end);
            }

            if (isResultNotNull) {
                final Label codeStart = new Label();
                mv.visitJumpInsn(Opcodes.GOTO, codeStart);
                throwLabel = new Label();
                mv.visitLabel(throwLabel);
                generateThrow(ILLEGAL_STATE_EXCEPTION_SIGNATURE,
                        "@NotNull method " + className + "." + name + " must not return null", codeStart);
            }
        }

        @Override
        public void visitLocalVariable(String name, String desc, String signature, Label start, Label end,
                int index) {
            boolean isStatic = (access & 8) != 0;
            boolean isParameter = isStatic ? index < args.length : index <= args.length;
            mv.visitLocalVariable(name, desc, signature,
                    !isParameter || startGeneratedCodeLabel == null ? start : startGeneratedCodeLabel, end,
                    index);
        }

        public void visitInsn(int opcode) {
            if (opcode == Opcodes.ARETURN && isResultNotNull) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitJumpInsn(Opcodes.IFNULL, throwLabel);
            }

            mv.visitInsn(opcode);
        }

        private void generateThrow(String exceptionClass, String descr, Label end) {
            mv.visitTypeInsn(Opcodes.NEW, exceptionClass);
            mv.visitInsn(Opcodes.DUP);
            mv.visitLdcInsn(descr);

            final String exceptionParamClass = "(Ljava/lang/String;)V";
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, exceptionClass, "<init>", exceptionParamClass);
            mv.visitInsn(Opcodes.ATHROW);
            mv.visitLabel(end);
            isModified = true;
        }

        private final List<Integer> notNullParams = new ArrayList<Integer>();
        private boolean isResultNotNull = false;
        public Label throwLabel;
        private Label startGeneratedCodeLabel;
    };
}

From source file:autostack.Transformer.java

License:Open Source License

public byte[] transform(ClassLoader loader, final String className, Class<?> classBeingRedefined,
        ProtectionDomain protectionDomain, byte[] classfileBuffer) {
    try {/*from   w  w  w  .  j a va  2  s. com*/
        if (className == null || className.startsWith("java/") || className.startsWith("sun/")
                || className.startsWith("jdk/internal/") || className.startsWith("org/lwjgl/"))
            return null;
        for (String pack : packages)
            if (!className.startsWith(pack))
                return null;
        ClassReader cr = new ClassReader(classfileBuffer);
        final Map<String, Integer> stackMethods = new HashMap<String, Integer>();
        // Scan all methods that need auto-stack
        if (debugTransform)
            System.out.println("[autostack] scanning methods in class: " + className.replace('/', '.'));
        cr.accept(new ClassVisitor(ASM5) {
            public MethodVisitor visitMethod(final int access, final String methodName, final String methodDesc,
                    String signature, String[] exceptions) {
                if ((access & (ACC_NATIVE | ACC_ABSTRACT)) != 0) {
                    // Don't try to analyze native or abstract methods.
                    return null;
                }
                MethodVisitor mv = new MethodVisitor(ASM5) {
                    boolean mark, catches, notransform, nostackparam, forcestack;

                    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                        if ("Lautostack/NoTransform;".equals(desc))
                            notransform = true;
                        else if ("Lautostack/NoStackParam;".equals(desc))
                            nostackparam = true;
                        else if ("Lautostack/UseNewStack;".equals(desc))
                            forcestack = true;
                        return null;
                    }

                    public void visitMethodInsn(int opcode, String owner, String name, String desc,
                            boolean itf) {
                        if (opcode == INVOKESTATIC && !itf && (owner.startsWith("org/lwjgl/")
                                && (name.equals("mallocStack") || name.equals("callocStack"))
                                || owner.equals(MEMORYSTACK) && (name.equals("stackGet")
                                        || name.equals("stackPop") || name.equals("stackPush")
                                        || name.startsWith("stackMalloc") || name.startsWith("stackCalloc")
                                        || name.equals("stackUTF8") || name.equals("stackASCII")
                                        || name.equals("stackUTF16") || name.equals("stackFloats")
                                        || name.equals("stackInts") || name.equals("stackBytes")
                                        || name.equals("stackShorts") || name.equals("stackPointers")
                                        || name.equals("stackLongs")))) {
                            mark = true;
                        }
                    }

                    public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
                        catches = true;
                    }

                    public void visitEnd() {
                        int flag = (access & ACC_PRIVATE) != 0 ? 8 : 0;
                        flag |= nostackparam ? 16 : 0;
                        if (mark || notransform || forcestack || nostackparam) {
                            if (notransform) {
                                flag |= 2;
                                if (debugTransform)
                                    System.out.println("[autostack]   will not transform method: "
                                            + className.replace('/', '.') + "." + methodName);
                            } else {
                                if (checkStack)
                                    flag |= 4;
                                flag |= catches ? 1 : 0;
                                if (debugTransform)
                                    System.out.println("[autostack]   will transform method: "
                                            + className.replace('/', '.') + "." + methodName);
                            }
                            stackMethods.put(methodName + methodDesc, Integer.valueOf(flag));
                        }
                    }
                };
                return mv;
            }
        }, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
        if (stackMethods.isEmpty())
            return null;

        // Now, transform all such methods
        if (debugTransform)
            System.out.println("[autostack] transforming methods in class: " + className.replace('/', '.'));
        ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
        cr.accept(new ClassVisitor(ASM5, cw) {
            boolean classDefaultNewStack = defaultNewStack;
            boolean classNoTransform;

            @Override
            public void visit(int version, int access, String name, String signature, String superName,
                    String[] interfaces) {
                cv.visit(version, access, name, signature, superName, interfaces);
                if (!checkStack) {
                    return;
                }
                /* Generate simple synthetic "compare stack pointers and throw if not equal" method */
                MethodVisitor mv = cv.visitMethod(ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, "$checkStack$",
                        "(II)V", null, new String[] { "java/lang/AssertionError" });
                {
                    mv.visitCode();
                    mv.visitVarInsn(ILOAD, 0);
                    mv.visitVarInsn(ILOAD, 1);
                    Label l0 = new Label();
                    mv.visitJumpInsn(IF_ICMPEQ, l0);
                    mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
                    mv.visitInsn(DUP);
                    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
                    mv.visitInsn(DUP);
                    mv.visitLdcInsn("Stack pointers differ: ");
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>",
                            "(Ljava/lang/String;)V", false);
                    mv.visitVarInsn(ILOAD, 0);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitLdcInsn(" != ");
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
                    mv.visitVarInsn(ILOAD, 1);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString",
                            "()Ljava/lang/String;", false);
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
                            "(Ljava/lang/String;)V", false);
                    mv.visitInsn(ATHROW);
                    mv.visitLabel(l0);
                    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                    mv.visitInsn(RETURN);
                    mv.visitMaxs(5, 2);
                    mv.visitEnd();
                }

                mv = cv.visitMethod(ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, "$checkStackWithThrowable$",
                        "(Ljava/lang/Throwable;II)Ljava/lang/Throwable;", null, null);
                {
                    mv.visitCode();
                    mv.visitVarInsn(ILOAD, 1);
                    mv.visitVarInsn(ILOAD, 2);
                    Label l0 = new Label();
                    mv.visitJumpInsn(IF_ICMPEQ, l0);
                    mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
                    mv.visitInsn(DUP);
                    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
                    mv.visitInsn(DUP);
                    mv.visitLdcInsn("Stack pointers differ: ");
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>",
                            "(Ljava/lang/String;)V", false);
                    mv.visitVarInsn(ILOAD, 1);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitLdcInsn(" != ");
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
                    mv.visitVarInsn(ILOAD, 2);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                            "(I)Ljava/lang/StringBuilder;", false);
                    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString",
                            "()Ljava/lang/String;", false);
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>",
                            "(Ljava/lang/String;Ljava/lang/Throwable;)V", false);
                    mv.visitInsn(ARETURN);
                    mv.visitLabel(l0);
                    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(5, 3);
                    mv.visitEnd();
                }
            }

            public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                if ("Lautostack/UseCallerStack;".equals(desc)) {
                    if (debugTransform)
                        System.out.println(
                                "[autostack]   class declares to use caller stack for all methods, unless overridden by method");
                    classDefaultNewStack = false;
                    return null;
                } else if ("Lautostack/UseNewStack;".equals(desc)) {
                    if (debugTransform)
                        System.out.println(
                                "[autostack]   class declares to use new stack for all methods, unless overridden by method");
                    classDefaultNewStack = true;
                    return null;
                } else if ("Lautostack/NoTransform;".equals(desc)) {
                    if (debugTransform)
                        System.out.println("[autostack]   class declares to not transform any methods");
                    classNoTransform = true;
                    return null;
                }
                return cv.visitAnnotation(desc, visible);
            }

            public MethodVisitor visitMethod(final int access, final String name, final String desc,
                    String signature, String[] exceptions) {
                Integer info = stackMethods.get(name + desc);
                if (info == null)
                    return super.visitMethod(access, name, desc, signature, exceptions);
                boolean catches = (info.intValue() & 1) == 1;
                final boolean notransform = classNoTransform || (info.intValue() & 2) == 2;
                if (debugTransform && !notransform)
                    System.out.println(
                            "[autostack]   transform method: " + className.replace('/', '.') + "." + name);
                final boolean memoryStackParam = stackAsParameter && (access & ACC_PRIVATE) != 0
                        && (info.intValue() & 16) == 0;
                MethodVisitor mv;
                final Type[] paramTypes = Type.getArgumentTypes(desc);
                final boolean isStatic = (access & ACC_STATIC) != 0;
                final boolean isConstructor = "<init>".equals(name);
                if (memoryStackParam) {
                    if (debugTransform)
                        System.out.println(
                                "[autostack]     changing signature of method to add additional MemoryStack parameter");

                    // Add additional MemoryStack parameter to the method signature index of the local stays the same
                    int paramEndIndex = desc.indexOf(')');
                    String beforeDesc = desc.substring(0, paramEndIndex);
                    String afterDesc = desc.substring(paramEndIndex);
                    mv = super.visitMethod(access | ACC_SYNTHETIC, name,
                            beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, signature, exceptions);

                    // Re-introduce the original method which just delegates
                    if (debugTransform)
                        System.out.println("[autostack]     adding delegate method with original signature");
                    MethodVisitor omv = super.visitMethod(access, name, desc, signature, exceptions);
                    omv.visitCode();
                    int param = 0;
                    if (!isStatic) {
                        omv.visitVarInsn(ALOAD, 0);
                        param++;
                    }
                    for (int i = 0; i < paramTypes.length; i++) {
                        omv.visitVarInsn(paramTypes[i].getOpcode(ILOAD), param);
                        param += paramTypes[i].getSize();
                    }
                    omv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, "stackGet", "()L" + MEMORYSTACK + ";",
                            false);
                    boolean isPrivate = (access & ACC_PRIVATE) != 0;
                    int opcode = isStatic ? INVOKESTATIC : isPrivate ? INVOKESPECIAL : INVOKEVIRTUAL;
                    omv.visitMethodInsn(opcode, className, name,
                            beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, false);
                    Type retType = Type.getReturnType(desc);
                    omv.visitInsn(retType.getOpcode(IRETURN));
                    omv.visitMaxs(-1, -1);
                    omv.visitEnd();
                } else {
                    mv = super.visitMethod(access, name, desc, signature, exceptions);
                }
                if (catches)
                    mv = new TryCatchBlockSorter(mv, access, name, desc, signature, exceptions);
                mv = new MethodVisitor(ASM5, mv) {
                    Label tryLabel = new Label();
                    Label finallyLabel = new Label();
                    int lastLine = 0;
                    boolean newStack = classDefaultNewStack;
                    int stackVarIndex;
                    int stackPointerVarIndex;
                    int firstAdditionalLocal;
                    int additionalLocals;
                    Object[] replacedLocals;

                    public void visitInsn(int opcode) {
                        if (notransform) {
                            mv.visitInsn(opcode);
                            return;
                        }
                        if (opcode >= IRETURN && opcode <= RETURN && (newStack || checkStack)) {
                            if (debugRuntime && newStack && !checkStack) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] restore stack pointer because of return at "
                                        + className.replace('/', '.') + "." + name + ":" + lastLine);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            if (newStack && !checkStack) {
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "setPointer", "(I)V", false);
                            } else if (checkStack) {
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                                mv.visitMethodInsn(INVOKESTATIC, className, "$checkStack$", "(II)V", false);
                            }
                        }
                        mv.visitInsn(opcode);
                    }

                    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                        if ("Lautostack/UseCallerStack;".equals(desc)) {
                            if (!notransform) {
                                if (debugTransform)
                                    System.out.println("[autostack]     method declares to use caller stack");
                                newStack = false;
                            }
                            return null;
                        } else if ("Lautostack/UseNewStack;".equals(desc)) {
                            if (!notransform) {
                                if (debugTransform)
                                    System.out.println("[autostack]     method declares to use new stack");
                                newStack = true;
                            }
                            return null;
                        } else if ("Lautostack/NoTransform;".equals(desc)) {
                            return null;
                        } else if ("Lautostack/NoStackParam;".equals(desc)) {
                            return null;
                        }
                        return mv.visitAnnotation(desc, visible);
                    }

                    public void visitVarInsn(int opcode, int var) {
                        if (notransform) {
                            mv.visitVarInsn(opcode, var);
                            return;
                        }
                        if (var >= firstAdditionalLocal)
                            var += additionalLocals;
                        mv.visitVarInsn(opcode, var);
                    }

                    public void visitIincInsn(int var, int increment) {
                        if (notransform) {
                            mv.visitIincInsn(var, increment);
                            return;
                        }
                        if (var >= firstAdditionalLocal)
                            var += additionalLocals;
                        mv.visitIincInsn(var, increment);
                    }

                    public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
                        if (notransform) {
                            mv.visitFrame(type, nLocal, local, nStack, stack);
                            return;
                        }
                        if (type == F_FULL) {
                            int noThis = isStatic ? 0 : 1;
                            Object[] locals = new Object[local.length + additionalLocals];
                            if (!isStatic)
                                locals[0] = local[0];
                            int replacementLength = replacedLocals.length;
                            System.arraycopy(replacedLocals, noThis, locals, noThis,
                                    replacementLength - noThis);
                            int len = locals.length - replacementLength;
                            System.arraycopy(local, replacementLength - additionalLocals, locals,
                                    replacementLength, len);
                            mv.visitFrame(type, nLocal + additionalLocals, locals, nStack, stack);
                        } else
                            mv.visitFrame(type, nLocal, local, nStack, stack);
                    }

                    public void visitLocalVariable(String name, String desc, String signature, Label start,
                            Label end, int index) {
                        if (notransform) {
                            mv.visitLocalVariable(className, desc, signature, start, end, index);
                            return;
                        }
                        if (index >= firstAdditionalLocal)
                            index += additionalLocals;
                        mv.visitLocalVariable(name, desc, signature, start, end, index);
                    }

                    private boolean doesNotTakeStackItself(String desc) {
                        return desc.lastIndexOf("L" + MEMORYSTACK + ";)") == -1;
                    }

                    public void visitMethodInsn(int opcode, String owner, String name, String desc,
                            boolean itf) {
                        String completeName = name + desc;
                        Integer info = stackMethods.get(completeName);
                        if (opcode != INVOKESTATIC || notransform) {
                            mv.visitMethodInsn(opcode, owner, name, desc, itf);
                            return;
                        }
                        if (stackAsParameter && info != null && (info.intValue() & 8) != 0
                                && (info.intValue() & 16) == 0) {
                            /* Rewrite invocation to have additional MemoryStack parameter */
                            if (debugTransform)
                                System.out.println(
                                        "[autostack]     rewrite invocation of " + owner.replace('/', '.') + "."
                                                + name + " at line " + lastLine + " --> "
                                                + owner.replace('/', '.') + "." + name + "(..., MemoryStack)");
                            int paramEndIndex = desc.indexOf(')');
                            String beforeDesc = desc.substring(0, paramEndIndex);
                            String afterDesc = desc.substring(paramEndIndex);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            mv.visitMethodInsn(opcode, owner, name,
                                    beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, itf);
                            return;
                        }
                        if (owner.startsWith("org/lwjgl/")
                                && (name.equals("mallocStack") || name.equals("callocStack"))
                                && doesNotTakeStackItself(desc)) {
                            if (debugTransform)
                                System.out.println(
                                        "[autostack]     rewrite invocation of " + owner.replace('/', '.') + "."
                                                + name + " at line " + lastLine + " --> aload " + stackVarIndex
                                                + "; invokestatic " + owner.replace('/', '.') + "." + name);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            int paramEndIndex = desc.indexOf(')');
                            String beforeDesc = desc.substring(0, paramEndIndex);
                            String afterDesc = desc.substring(paramEndIndex);
                            mv.visitMethodInsn(opcode, owner, name,
                                    beforeDesc + "L" + MEMORYSTACK + ";" + afterDesc, false);
                        } else if (owner.equals(MEMORYSTACK) && name.equals("stackGet")) {
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.equals("stackPush") || name.equals("stackPop"))) {
                            String newName = "p" + name.substring(6);
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.startsWith("stackMalloc") || name.startsWith("stackCalloc"))) {
                            String newName = name.substring(5, 6).toLowerCase() + name.substring(6);
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            mv.visitInsn(SWAP);
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK) && (name.equals("stackASCII")
                                || name.equals("stackUTF8") || name.equals("stackUTF16"))) {
                            String newName = name.substring(5);
                            boolean withBoolean = desc.startsWith("(Ljava/lang/CharSequence;Z");
                            if (debugTransform)
                                System.out.println("[autostack]     rewrite invocation of "
                                        + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                        + " --> aload " + stackVarIndex + "; invokevirtual "
                                        + MEMORYSTACK.replace('/', '.') + "." + newName);
                            mv.visitVarInsn(ALOAD, stackVarIndex);
                            if (withBoolean) {
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                            } else {
                                mv.visitInsn(SWAP);
                            }
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                        } else if (owner.equals(MEMORYSTACK)
                                && (name.equals("stackFloats") || name.equals("stackInts")
                                        || name.equals("stackBytes") || name.equals("stackShorts")
                                        || name.equals("stackPointers")
                                                && (desc.startsWith("([Lorg/lwjgl/system/Pointer;")
                                                        || desc.startsWith("(Lorg/lwjgl/system/Pointer;")))) {
                            String newName = name.substring(5, 6).toLowerCase() + name.substring(6);
                            Type[] argTypes = Type.getArgumentTypes(desc);
                            if (argTypes.length == 1 && argTypes[0].getSort() == Type.ARRAY) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 1) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 2) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 3) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(DUP2_X2);
                                mv.visitInsn(POP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                                mv.visitInsn(SWAP);
                                mv.visitInsn(POP);
                            } else {
                                if (debugTransform)
                                    System.out.println("[autostack]     failed to rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + ". Not yet implemented.");
                                /* Give up. Not possible without an additional local */
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, name, desc, itf);
                            }
                        } else if (owner.equals(MEMORYSTACK) && name.equals("stackLongs")) {
                            String newName = name.substring(5, 6).toLowerCase() + name.substring(6);
                            Type[] argTypes = Type.getArgumentTypes(desc);
                            if (argTypes.length == 1 && argTypes[0].getSort() == Type.ARRAY) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else if (argTypes.length == 1) {
                                if (debugTransform)
                                    System.out.println("[autostack]     rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + " --> aload " + stackVarIndex + "; invokevirtual "
                                            + MEMORYSTACK.replace('/', '.') + "." + newName);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitInsn(DUP_X2);
                                mv.visitInsn(POP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, newName, desc, itf);
                            } else {
                                if (debugTransform)
                                    System.out.println("[autostack]     failed to rewrite invocation of "
                                            + owner.replace('/', '.') + "." + name + " at line " + lastLine
                                            + ". Not yet implemented.");
                                /* Give up. Not possible without an additional local */
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, name, desc, itf);
                            }
                        } else {
                            mv.visitMethodInsn(opcode, owner, name, desc, itf);
                        }
                    }

                    public void visitLineNumber(int line, Label start) {
                        mv.visitLineNumber(line, start);
                        lastLine = line;
                    }

                    public void visitCode() {
                        if (notransform) {
                            mv.visitCode();
                            return;
                        }
                        additionalLocals = newStack || checkStack ? 2 : 1;
                        replacedLocals = new Object[paramTypes.length + additionalLocals + (isStatic ? 0 : 1)];
                        if (!newStack && !checkStack) {
                            replacedLocals[replacedLocals.length - 1] = MEMORYSTACK;
                        } else {
                            replacedLocals[replacedLocals.length - 2] = MEMORYSTACK;
                            replacedLocals[replacedLocals.length - 1] = INTEGER;
                        }
                        if (!isStatic)
                            replacedLocals[0] = isConstructor ? TOP : className;
                        int var = isStatic ? 0 : 1;
                        for (int t = 0, i = var; t < paramTypes.length; t++, i++) {
                            Type type = paramTypes[t];
                            var += type.getSize();
                            switch (type.getSort()) {
                            case Type.INT:
                            case Type.BYTE:
                            case Type.BOOLEAN:
                            case Type.SHORT:
                            case Type.CHAR:
                                replacedLocals[i] = INTEGER;
                                break;
                            case Type.LONG:
                                replacedLocals[i] = LONG;
                                break;
                            case Type.FLOAT:
                                replacedLocals[i] = FLOAT;
                                break;
                            case Type.DOUBLE:
                                replacedLocals[i] = DOUBLE;
                                break;
                            case Type.OBJECT:
                            case Type.ARRAY:
                                replacedLocals[i] = type.getInternalName();
                                break;
                            default:
                                throw new AssertionError("Unhandled parameter type: " + type);
                            }
                        }
                        firstAdditionalLocal = var;
                        stackVarIndex = var;
                        stackPointerVarIndex = var + 1;
                        mv.visitCode();
                        if (newStack && !checkStack || checkStack) {
                            if (!memoryStackParam) {
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, "stackGet",
                                        "()L" + MEMORYSTACK + ";", false);
                                mv.visitInsn(DUP);
                                mv.visitVarInsn(ASTORE, stackVarIndex);
                            } else {
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                            }
                            mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                            mv.visitVarInsn(ISTORE, stackPointerVarIndex);
                            if (debugRuntime && newStack && !checkStack) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] save stack pointer [");
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "toString",
                                        "(I)Ljava/lang/String;", false);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("] at begin of " + className.replace('/', '.') + "." + name);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            mv.visitLabel(tryLabel);
                            if (!memoryStackParam)
                                mv.visitFrame(F_APPEND, 2, new Object[] { MEMORYSTACK, INTEGER }, 0, null);
                            else
                                mv.visitFrame(F_APPEND, 1, new Object[] { INTEGER }, 0, null);
                        } else if (!newStack && !checkStack) {
                            if (!memoryStackParam) {
                                mv.visitMethodInsn(INVOKESTATIC, MEMORYSTACK, "stackGet",
                                        "()L" + MEMORYSTACK + ";", false);
                                mv.visitVarInsn(ASTORE, stackVarIndex);
                            }
                            if (debugRuntime) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] current stack pointer is [");
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                                mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "toString",
                                        "(I)Ljava/lang/String;", false);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("] at begin of " + className.replace('/', '.') + "." + name);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            mv.visitLabel(tryLabel);
                            if (!memoryStackParam)
                                mv.visitFrame(F_APPEND, 1, new Object[] { MEMORYSTACK }, 0, null);
                        }
                    }

                    public void visitMaxs(int maxStack, int maxLocals) {
                        if (notransform) {
                            mv.visitMaxs(maxStack, maxLocals);
                            return;
                        }
                        if (newStack && !checkStack || checkStack) {
                            mv.visitLabel(finallyLabel);
                            mv.visitFrame(F_FULL, replacedLocals.length, replacedLocals, 1,
                                    new Object[] { "java/lang/Throwable" });
                            mv.visitTryCatchBlock(tryLabel, finallyLabel, finallyLabel, null);
                            if (debugRuntime && newStack && !checkStack) {
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn("[autostack] restore stack pointer because of throw [");
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitInsn(DUP);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitInsn(SWAP);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "toString",
                                        "()Ljava/lang/String;", false);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print",
                                        "(Ljava/lang/String;)V", false);
                                mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out",
                                        "Ljava/io/PrintStream;");
                                mv.visitLdcInsn(
                                        "] at " + className.replace('/', '.') + "." + name + ":" + lastLine);
                                mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println",
                                        "(Ljava/lang/String;)V", false);
                            }
                            if (newStack && !checkStack) {
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "setPointer", "(I)V", false);
                            }
                            if (checkStack) {
                                mv.visitVarInsn(ILOAD, stackPointerVarIndex);
                                mv.visitVarInsn(ALOAD, stackVarIndex);
                                mv.visitMethodInsn(INVOKEVIRTUAL, MEMORYSTACK, "getPointer", "()I", false);
                                mv.visitMethodInsn(INVOKESTATIC, className, "$checkStackWithThrowable$",
                                        "(Ljava/lang/Throwable;II)Ljava/lang/Throwable;", false);
                            }
                            mv.visitInsn(ATHROW);
                        }
                        mv.visitMaxs(-1, maxLocals + additionalLocals);
                    }
                };
                return mv;
            }
        }, 0);
        byte[] arr = cw.toByteArray();
        if (trace) {
            cr = new ClassReader(arr);
            cr.accept(new TraceClassVisitor(new PrintWriter(System.out)), 0);
        }
        return arr;
    } catch (Throwable t) {
        t.printStackTrace();
        throw new RuntimeException(t);
    }
}

From source file:bluejelly.runtime.ModuleReader.java

License:BSD License

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {

    Type[] paramTypes = Type.getArgumentTypes(desc);
    Type returnType = Type.getReturnType(desc);
    this.m = new Method(name, returnType, paramTypes);

    return super.visitMethod(access, name, desc, signature, exceptions);
}

From source file:boilerplate.processor.adapters.EqualsAdapter.java

License:Open Source License

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
    boolean zeroArgs = true;
    boolean objectArgument = false;
    if (desc != null) {
        Type[] types = Type.getArgumentTypes(desc);
        if (types != null) {
            if (types.length > 0) {
                zeroArgs = false;//from ww  w  .  ja va2s .  co m
            }
            if (types.length == 1) {
                Type objectType = Type.getType(Object.class);
                if (types[0].equals(objectType)) {
                    objectArgument = true;
                }
            }
        }
    }

    if ("hashCode".equals(name) && zeroArgs) {
        typeInfo.hasHashCodeMethod = true;
    } else if ("equals".equals(name) && objectArgument) {
        typeInfo.hasEqualsMethod = true;
    }

    return super.visitMethod(access, name, desc, signature, exceptions);
}

From source file:boilerplate.processor.adapters.ToStringAdapter.java

License:Open Source License

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
    boolean zeroArgs = true;
    if (desc != null) {
        Type[] types = Type.getArgumentTypes(desc);
        if (types != null && types.length > 0) {
            zeroArgs = false;/*from w ww . jav  a  2s  .co m*/
        }
    }

    if ("toString".equals(name) && zeroArgs) {
        typeInfo.hasToStringMethod = true;
    }

    return super.visitMethod(access, name, desc, signature, exceptions);
}

From source file:ca.weblite.netbeans.mirah.lexer.ClassQuery.java

/**
* Returns a list containing one parameter name for each argument accepted
* by the given constructor. If the class was compiled with debugging
* symbols, the parameter names will match those provided in the Java source
* code. Otherwise, a generic "arg" parameter name is generated ("arg0" for
* the first argument, "arg1" for the second...).
* 
* This method relies on the constructor's class loader to locate the
* bytecode resource that defined its class.
* 
* @param constructor//  w w  w.j  av  a 2s .com
* @return 
* @throws IOException
*/
public List<String> getParameterNames(Constructor<?> constructor) throws IOException {
    //Class<?> declaringClass = constructor.getDeclaringClass();
    Class declaringClass = cls;
    ClassLoader declaringClassLoader = declaringClass.getClassLoader();

    Type declaringType = Type.getType(declaringClass);
    String constructorDescriptor = Type.getConstructorDescriptor(constructor);
    String url = declaringType.getInternalName() + ".class";

    InputStream classFileInputStream = declaringClassLoader.getResourceAsStream(url);
    if (classFileInputStream == null) {
        throw new IllegalArgumentException(
                "The constructor's class loader cannot find the bytecode that defined the constructor's class (URL: "
                        + url + ")");
    }

    ClassNode classNode;
    try {
        classNode = new ClassNode();
        ClassReader classReader = new ClassReader(classFileInputStream);
        classReader.accept(classNode, 0);
    } finally {
        classFileInputStream.close();
    }

    @SuppressWarnings("unchecked")
    List<MethodNode> methods = classNode.methods;
    for (MethodNode method : methods) {
        if (method.name.equals("<init>") && method.desc.equals(constructorDescriptor)) {
            Type[] argumentTypes = Type.getArgumentTypes(method.desc);
            List<String> parameterNames = new ArrayList<String>(argumentTypes.length);

            @SuppressWarnings("unchecked")
            List<LocalVariableNode> localVariables = method.localVariables;
            for (int i = 0; i < argumentTypes.length; i++) {
                // The first local variable actually represents the "this" object
                parameterNames.add(localVariables.get(i + 1).name);
            }

            return parameterNames;
        }
    }

    return null;
}

From source file:ca.weblite.netbeans.mirah.lexer.ClassQuery.java

public static List<String> getParameterNames(Class cls, Method constructor, FileObject fo) throws IOException {
    //Class<?> declaringClass = constructor.getDeclaringClass();
    Class declaringClass = cls;//from  w  ww  .j a v a2  s.  co m
    ClassLoader declaringClassLoader = declaringClass.getClassLoader();
    if (declaringClassLoader == null) {
        cls = findClass(cls.getName(), fo);
        declaringClassLoader = cls.getClassLoader();

    }
    if (declaringClassLoader == null) {
        return null;
    }
    Type declaringType = Type.getType(declaringClass);
    String constructorDescriptor = Type.getMethodDescriptor(constructor);
    String url = declaringType.getInternalName() + ".class";

    InputStream classFileInputStream = declaringClassLoader.getResourceAsStream(url);
    if (classFileInputStream == null) {
        throw new IllegalArgumentException(
                "The constructor's class loader cannot find the bytecode that defined the constructor's class (URL: "
                        + url + ")");
    }

    ClassNode classNode;
    try {
        classNode = new ClassNode();
        ClassReader classReader = new ClassReader(classFileInputStream);
        classReader.accept(classNode, 0);
    } finally {
        classFileInputStream.close();
    }

    @SuppressWarnings("unchecked")
    List<MethodNode> methods = classNode.methods;
    for (MethodNode method : methods) {
        if (method.name.equals(constructor.getName()) && method.desc.equals(constructorDescriptor)) {
            Type[] argumentTypes = Type.getArgumentTypes(method.desc);
            List<String> parameterNames = new ArrayList<String>(argumentTypes.length);
            @SuppressWarnings("unchecked")
            List<LocalVariableNode> localVariables = method.localVariables;
            boolean isStatic = true;
            if (localVariables != null && !localVariables.isEmpty()
                    && localVariables.get(0).name.equals("this")) {
                isStatic = false;
            }
            int offset = isStatic ? 0 : 1;
            for (int i = 0; i < argumentTypes.length; i++) {
                // The first local variable actually represents the "this" object
                try {
                    parameterNames.add(localVariables.get(i + offset).name);
                } catch (NullPointerException npe) {
                    npe.printStackTrace();
                }
            }

            return parameterNames;
        }
    }

    List<String> out = null;
    cls = cls.getSuperclass();
    while (cls != null && out == null) {
        out = getParameterNames(cls, constructor, fo);
        cls = cls.getSuperclass();
    }
    if (out != null) {
        return out;
    }
    return null;
}

From source file:ch.eiafr.cojac.FloatVariablesSorter.java

License:Apache License

public FloatVariablesSorter(int access, String oldDesc, AnalyzerAdapter mv) {
    super(Opcodes.ASM5, mv);
    Type[] args = Type.getArgumentTypes(oldDesc);
    firstFrameMapping = new int[1 + args.length * 2]; // +1 for 'this'
    Arrays.fill(firstFrameMapping, -1); // so that erroneously using unwritten cells will cause problems...
    boolean hasTarget = (Opcodes.ACC_STATIC & access) == 0; // not static -> there is a 'this' param
    int oldVarIndex = 0;
    int newVarIndex = 0;
    int lastIndexSet = -1;
    if (hasTarget) {
        oldVarIndex = newVarIndex = 1;/* w w  w  . ja  va  2s .co m*/
        firstFrameMapping[0] = 0; // 'this' remains 'this' after remapping...
        lastIndexSet = 0;
    }
    for (Type arg : args) {
        firstFrameMapping[oldVarIndex] = newVarIndex;
        lastIndexSet = oldVarIndex;
        oldVarIndex += arg.getSize();
        newVarIndex += arg.getSize();
        if (arg.equals(Type.DOUBLE_TYPE)) {
            newVarIndex--;
        }
        assert !arg.equals(COJAC_DOUBLE_WRAPPER_TYPE); // this would be strange (the descriptor is the old one)
    }
    maxRenumber = lastIndexSet;
}

From source file:ch.eiafr.cojac.instrumenters.FloatProxyMethod.java

License:Apache License

public void nativeCall(MethodVisitor mv, int access, String owner, String name, String desc) {
    boolean isStatic = (access & ACC_STATIC) > 0;
    String newDesc = replaceFloatMethodDescription(desc);
    MethodVisitor newMv = ccv.addProxyMethod(access & ~ACC_NATIVE, name, newDesc, null, null);
    int varIndex = 0;
    int opcode = INVOKESTATIC;
    if (!isStatic) {
        newMv.visitVarInsn(ALOAD, 0);/*from  www .j  a  va  2 s.com*/
        varIndex = 1;
        opcode = INVOKEVIRTUAL;
    }
    ConversionContext cc = new ConversionContext(opcode, owner, name, desc);
    Type args[] = Type.getArgumentTypes(newDesc);
    for (Type type : args) {
        newMv.visitVarInsn(getLoadOpcode(type), varIndex);
        varIndex += type.getSize();
    }
    convertArgumentsToReal(mv, cc);
    // stack >> [target] allParamsArr [target] allParamsArr
    maybeConvertTarget(mv, cc.opcode, cc.owner);
    // stack >> [target] allParamsArr [newTarget] allParamsArr
    explodeOnStack(mv, cc, true);
    // stack >> [target] allParamsArr [newTarget] nprm0 nprm1 nprm2...
    newMv.visitMethodInsn(opcode, owner, name, desc, false);
    // stack >> [target] allParamsArr [possibleResult]
    checkArraysAfterCall(newMv, cc.convertedArrays, desc);
    // stack >> [target] [possibleResult]
    convertReturnType(newMv, desc);
    // stack >> [target] [newPossibleResult]
    newMv.visitInsn(afterFloatReplacement(Type.getReturnType(desc)).getOpcode(IRETURN));
    // stack >> [target]       // left on the stack... not a problem!
    newMv.visitMaxs(0, 0);
}