Example usage for org.objectweb.asm MethodVisitor visitIntInsn

List of usage examples for org.objectweb.asm MethodVisitor visitIntInsn

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitIntInsn.

Prototype

public void visitIntInsn(final int opcode, final int operand)

Source Link

Document

Visits an instruction with a single int operand.

Usage

From source file:com.sun.fortress.runtimeSystem.InstantiatingClassloader.java

License:Open Source License

private byte[] instantiateConcreteTuple(String dename, List<String> parameters) {
    /*//from  w  ww. j a v  a  2s. c om
     * extends AnyConcreteTuple[\ N \]
     * 
     * implements Tuple[\ parameters \]
     * 
     * defines f1 ... fN
     * defines e1 ... eN
     * defines o1 ... oN
     */

    ManglingClassWriter cw = new ManglingClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);

    final int n = parameters.size();
    final String any_tuple_n = ANY_TUPLE + Naming.LEFT_OXFORD + n + Naming.RIGHT_OXFORD;
    final String any_concrete_tuple_n = ANY_CONCRETE_TUPLE + Naming.LEFT_OXFORD + n + Naming.RIGHT_OXFORD;
    final String tuple_params = stringListToTuple(parameters);

    String[] superInterfaces = { tuple_params };

    cw.visit(JVM_BYTECODE_VERSION, ACC_PUBLIC + ACC_SUPER, dename, null, any_concrete_tuple_n, superInterfaces);

    /* Outline of what must be generated:
            
    // fields
            
    // init method
            
    // factory method
              
    // getRTTI method
            
    // is instance method -- takes an Object
            
    // is instance method
              
    // cast method
            
    // typed getters
            
    // untyped getters
             
    */

    // fields
    {
        for (int i = 0; i < n; i++) {
            String f = TUPLE_FIELD_PFX + (i + Naming.TUPLE_ORIGIN);
            String sig = Naming.internalToDesc(parameters.get(i));
            cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL, f, sig, null /* for non-generic */,
                    null /* instance has no value */);
        }
    }
    // init method
    {
        String init_sig = tupleParamsToJvmInitSig(parameters);
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", init_sig, null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, any_concrete_tuple_n, "<init>", Naming.voidToVoid);

        for (int i = 0; i < n; i++) {
            String f = TUPLE_FIELD_PFX + (i + Naming.TUPLE_ORIGIN);
            String sig = Naming.internalToDesc(parameters.get(i));

            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitVarInsn(Opcodes.ALOAD, i + 1);
            mv.visitFieldInsn(Opcodes.PUTFIELD, dename, f, sig);
        }
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
        mv.visitEnd();
    }

    // factory method -- same args as init, returns a new one.
    {
        String init_sig = tupleParamsToJvmInitSig(parameters);
        String make_sig = toJvmSig(parameters, Naming.javaDescForTaggedFortressType(tuple_params));
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "make", make_sig, null,
                null);

        mv.visitCode();
        // eep(mv, "before new");
        mv.visitTypeInsn(NEW, dename);
        mv.visitInsn(DUP);
        // push params for init
        for (int i = 0; i < n; i++) {
            mv.visitVarInsn(Opcodes.ALOAD, i);
        }
        // eep(mv, "before init");
        mv.visitMethodInsn(INVOKESPECIAL, dename, "<init>", init_sig);

        mv.visitInsn(Opcodes.ARETURN);
        mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
        mv.visitEnd();
    }

    // getRTTI method/field and static initialization
    {
        final String classname = dename;
        MethodVisitor mv = cw.visitNoMangleMethod(Opcodes.ACC_PUBLIC, // acccess
                Naming.RTTI_GETTER, // name
                Naming.STATIC_PARAMETER_GETTER_SIG, // sig
                null, // generics sig?
                null); // exceptions
        mv.visitCode();
        mv.visitFieldInsn(GETSTATIC, classname, Naming.RTTI_FIELD, Naming.RTTI_CONTAINER_DESC);

        areturnEpilogue(mv);

        MethodVisitor imv = cw.visitMethod(ACC_STATIC, "<clinit>", Naming.voidToVoid, null, null);
        //taken from codegen.emitRttiField   
        InitializedStaticField isf = new InitializedStaticField.StaticForRttiFieldOfTuple(classname, this);
        isf.forClinit(imv);
        cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, isf.asmName(), isf.asmSignature(),
                null /* for non-generic */, null /* instance has no value */);

        imv.visitInsn(RETURN);
        imv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
        imv.visitEnd();

    }

    // is instance method -- takes an Object
    {
        String sig = "(Ljava/lang/Object;)Z";
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, IS_A, sig, null, null);

        Label fail = new Label();

        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitTypeInsn(Opcodes.INSTANCEOF, any_tuple_n);
        mv.visitJumpInsn(Opcodes.IFEQ, fail);

        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitTypeInsn(Opcodes.CHECKCAST, any_tuple_n);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, dename, IS_A, "(" + Naming.internalToDesc(any_tuple_n) + ")Z");
        mv.visitInsn(Opcodes.IRETURN);

        mv.visitLabel(fail);
        mv.visitIntInsn(BIPUSH, 0);
        mv.visitInsn(Opcodes.IRETURN);

        mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
        mv.visitEnd();
    }

    // is instance method -- takes an AnyTuple[\N\]
    {
        String sig = "(" + Naming.internalToDesc(any_tuple_n) + ")Z";
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, IS_A, sig, null, null);

        Label fail = new Label();

        for (int i = 0; i < n; i++) {
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(INVOKEINTERFACE, any_tuple_n, TUPLE_OBJECT_ELT_PFX + (Naming.TUPLE_ORIGIN + i),
                    UNTYPED_GETTER_SIG);

            String cast_to = parameters.get(i);

            generalizedInstanceOf(mv, cast_to);

            mv.visitJumpInsn(Opcodes.IFEQ, fail);

        }

        mv.visitIntInsn(BIPUSH, 1);
        mv.visitInsn(Opcodes.IRETURN);

        mv.visitLabel(fail);
        mv.visitIntInsn(BIPUSH, 0);
        mv.visitInsn(Opcodes.IRETURN);
        mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
        mv.visitEnd();
    }

    // cast method
    {
        String sig = "(" + Naming.internalToDesc(any_tuple_n) + ")" + Naming.internalToDesc(tuple_params);
        String make_sig = toJvmSig(parameters, Naming.javaDescForTaggedFortressType(tuple_params));

        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, CAST_TO, sig, null, null);

        // Get the parameters to make, and cast them.
        for (int i = 0; i < n; i++) {
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(INVOKEINTERFACE, any_tuple_n, TUPLE_OBJECT_ELT_PFX + (Naming.TUPLE_ORIGIN + i),
                    UNTYPED_GETTER_SIG);
            String cast_to = parameters.get(i);
            generalizedCastTo(mv, cast_to);
        }

        mv.visitMethodInsn(INVOKESTATIC, dename, "make", make_sig);

        mv.visitInsn(Opcodes.ARETURN);
        mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
        mv.visitEnd();
    }

    // typed getters
    // untyped getters
    for (int i = 0; i < n; i++) {
        String untyped = TUPLE_OBJECT_ELT_PFX + (Naming.TUPLE_ORIGIN + i);
        String typed = TUPLE_TYPED_ELT_PFX + (Naming.TUPLE_ORIGIN + i);
        String field = TUPLE_FIELD_PFX + (Naming.TUPLE_ORIGIN + i);
        String param_type = parameters.get(i);
        String param_desc = Naming.internalToDesc(param_type);
        {
            MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, untyped, UNTYPED_GETTER_SIG, null, null);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, dename, field, param_desc);
            mv.visitInsn(Opcodes.ARETURN);
            mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
            mv.visitEnd();
        }
        {
            MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, typed, "()" + param_desc, null, null);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, dename, field, param_desc);
            mv.visitInsn(Opcodes.ARETURN);
            mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
            mv.visitEnd();
        }
    }

    cw.visitEnd();

    return cw.toByteArray();
}

From source file:com.toolazydogs.maiden.agent.asm.AsmUtils.java

License:Apache License

/**
 * Generates the instruction to push the given value on the stack.
 *
 * @param methodVisitor the visitor to which to send the instruction
 * @param value         the value to be pushed on the stack.
 *///w  ww .  j a va 2 s.  c  om
public static void push(MethodVisitor methodVisitor, int value) {
    if (value >= -1 && value <= 5) {
        methodVisitor.visitInsn(Opcodes.ICONST_0 + value);
    } else if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) {
        methodVisitor.visitIntInsn(Opcodes.BIPUSH, value);
    } else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) {
        methodVisitor.visitIntInsn(Opcodes.SIPUSH, value);
    } else {
        methodVisitor.visitLdcInsn(value);
    }
}

From source file:com.weibo.lodil.mmap.impl.GenerateHugeArrays.java

License:Apache License

public static byte[] dumpArrayList(final TypeModel tm) {
    final ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;//from  w w  w .j a v a 2 s  .  c o  m
    MethodVisitor mv;

    final Class interfaceClass = tm.type();
    final String name = interfaceClass.getName().replace('.', '/');

    cw.visit(
            V1_5, ACC_PUBLIC + ACC_SUPER, name + "ArrayList", "L" + collections + "impl/AbstractHugeArrayList<L"
                    + name + ";L" + name + "Allocation;L" + name + "Element;>;",
            collections + "impl/AbstractHugeArrayList", null);

    cw.visitSource(tm.type().getSimpleName() + "ArrayList.java", null);

    for (final FieldModel fm : tm.fields()) {
        if (fm instanceof Enum8FieldModel) {
            fv = cw.visitField(ACC_FINAL, fm.fieldName() + "FieldModel",
                    "L" + collections + "model/Enum8FieldModel;",
                    "L" + collections + "model/Enum8FieldModel<Ljava/lang/annotation/ElementType;>;", null);
            fv.visitEnd();
        } else if (fm instanceof Enumerated16FieldModel) {
            fv = cw.visitField(ACC_FINAL, fm.fieldName() + "FieldModel",
                    "L" + collections + "model/Enumerated16FieldModel;",
                    "L" + collections + "model/Enumerated16FieldModel<Ljava/lang/String;>;", null);
            fv.visitEnd();
        }
    }
    final List<FieldModel> fields = new ArrayList<FieldModel>();
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(L" + collections + "HugeArrayBuilder;)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(35, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, collections + "impl/AbstractHugeArrayList", "<init>",
                "(L" + collections + "HugeArrayBuilder;)V");
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(29, l1);

        for (final FieldModel fm : tm.fields()) {
            if (fm instanceof Enum8FieldModel) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitTypeInsn(NEW, fm.bcModelType());
                mv.visitInsn(DUP);
                mv.visitLdcInsn(fm.fieldName());
                mv.visitIntInsn(BIPUSH, fm.fieldNumber());
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitMethodInsn(INVOKESTATIC, fm.bcFieldType(), "values", "()[" + fm.bcLFieldType());
                mv.visitMethodInsn(INVOKESPECIAL, fm.bcModelType(), "<init>",
                        "(Ljava/lang/String;ILjava/lang/Class;[Ljava/lang/Enum;)V");
                mv.visitFieldInsn(PUTFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEVIRTUAL, collections + "HugeArrayBuilder", "baseDirectory",
                        "()Ljava/lang/String;");
                mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "baseDirectory", "(Ljava/lang/String;)V");
                fields.add(fm);

            } else if (fm instanceof Enumerated16FieldModel) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitTypeInsn(NEW, fm.bcModelType());
                mv.visitInsn(DUP);
                mv.visitLdcInsn(fm.fieldName());
                mv.visitIntInsn(BIPUSH, fm.fieldNumber());
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitMethodInsn(INVOKESPECIAL, fm.bcModelType(), "<init>",
                        "(Ljava/lang/String;ILjava/lang/Class;)V");
                mv.visitFieldInsn(PUTFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEVIRTUAL, collections + "HugeArrayBuilder", "baseDirectory",
                        "()Ljava/lang/String;");
                mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "baseDirectory", "(Ljava/lang/String;)V");
                fields.add(fm);
            }
        }

        mv.visitInsn(RETURN);
        final Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l4, 0);
        mv.visitLocalVariable("hab", "L" + collections + "HugeArrayBuilder;", null, l0, l4, 1);
        mv.visitMaxs(7, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "createAllocation",
                "(L" + collections + "impl/MappedFileChannel;)L" + name + "Allocation;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(43, l0);
        mv.visitTypeInsn(NEW, name + "Allocation");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name + "ArrayList", "allocationSize", "I");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, name + "Allocation", "<init>",
                "(IL" + collections + "impl/MappedFileChannel;)V");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("mfc", "L" + collections + "impl/MappedFileChannel;", null, l0, l1, 1);
        mv.visitMaxs(4, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "createElement", "(J)L" + name + "Element;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(48, l0);
        mv.visitTypeInsn(NEW, name + "Element");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, name + "Element", "<init>",
                "(L" + collections + "impl/AbstractHugeArrayList;J)V");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("n", "J", null, l0, l1, 1);
        mv.visitMaxs(5, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "createImpl", "()L" + name + ";", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(53, l0);
        mv.visitTypeInsn(NEW, name + "Impl");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, name + "Impl", "<init>", "()V");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "compactStart", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(57, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactStart", "()V");
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(58, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "compactOnAllocation", "(L" + name + "Allocation;J)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(65, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_string", fm.bcLStoreType());
            mv.visitVarInsn(LLOAD, 2);
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactScan", "(" + fm.bcLStoreType() + "J)V");
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(66, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0);
        mv.visitLocalVariable("allocation", "L" + name + "Allocation;", null, l0, l2, 1);
        mv.visitLocalVariable("thisSize", "J", null, l0, l2, 2);
        mv.visitMaxs(4, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "compactEnd", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(69, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactEnd", "()V");
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(70, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(74, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "clear", "()V");
        }
        final Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLineNumber(77, l3);
        mv.visitInsn(RETURN);
        final Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l4, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createImpl", "()Ljava/lang/Object;",
                null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createImpl", "()L" + name + ";");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createElement",
                "(J)L" + collections + "impl/AbstractHugeElement;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createElement", "(J)L" + name + "Element;");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "J", null, l0, l1, 1);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "compactOnAllocation",
                "(L" + collections + "api/HugeAllocation;J)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, name + "Allocation");
        mv.visitVarInsn(LLOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "compactOnAllocation",
                "(L" + name + "Allocation;J)V");
        mv.visitInsn(RETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "L" + collections + "api/HugeAllocation;", null, l0, l1, 1);
        mv.visitLocalVariable("x1", "J", null, l0, l1, 2);
        mv.visitMaxs(4, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createAllocation",
                "(L" + collections + "impl/MappedFileChannel;)L" + collections + "api/HugeAllocation;", null,
                null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createAllocation",
                "(L" + collections + "impl/MappedFileChannel;)L" + name + "Allocation;");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "L" + collections + "impl/MappedFileChannel;", null, l0, l1, 1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();
    final byte[] bytes = cw.toByteArray();
    // ClassReader cr = new ClassReader(bytes);
    // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0);
    return bytes;
}

From source file:com.weibo.lodil.mmap.impl.GenerateHugeArrays.java

License:Apache License

private static void appendToStringHashCodeEqualsCopyOf(final TypeModel tm, final ClassWriter cw,
        final String name2, final boolean hasListField) {
    final String name = tm.bcType();
    MethodVisitor mv;
    {//from ww  w.j a  va 2 s .  c  o m
        mv = cw.visitMethod(ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(176, l0);
        mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V");
        mv.visitLdcInsn(tm.type().getSimpleName() + "{");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;");

        String sep = "";
        for (final FieldModel fm : tm.fields()) {
            final boolean text = CharSequence.class.isAssignableFrom(tm.type());

            mv.visitLdcInsn(sep + fm.fieldName() + "=" + (text ? "'" : ""));
            mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                    "(Ljava/lang/String;)Ljava/lang/StringBuilder;");
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType());
            String appendType = "Ljava/lang/Object;";
            final Class fmType = fm.type();
            if (fmType.isPrimitive()) {
                if ((fmType == byte.class) || (fmType == short.class)) {
                    appendType = "I";
                } else {
                    appendType = fm.bcLFieldType();
                }
            }
            mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                    "(" + appendType + ")Ljava/lang/StringBuilder;");
            sep = text ? "', " : ", ";
        }
        if (sep.startsWith("'")) {
            mv.visitIntInsn(BIPUSH, 39);
            mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                    "(C)Ljava/lang/StringBuilder;");
        }
        mv.visitIntInsn(BIPUSH, 125);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l1, 0);
        mv.visitMaxs(3, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "equals", "(Ljava/lang/Object;)Z", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(194, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        final Label l1 = new Label();
        mv.visitJumpInsn(IF_ACMPNE, l1);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l1);
        mv.visitLineNumber(195, l1);
        mv.visitVarInsn(ALOAD, 1);
        final Label l2 = new Label();
        mv.visitJumpInsn(IFNULL, l2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
        final Label l3 = new Label();
        mv.visitJumpInsn(IF_ACMPEQ, l3);
        mv.visitLabel(l2);
        mv.visitInsn(ICONST_0);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l3);
        mv.visitLineNumber(197, l3);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, name2);
        mv.visitVarInsn(ASTORE, 2);
        final Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitLineNumber(199, l4);
        final FieldModel[] fieldModels = tm.fields().clone();
        Arrays.sort(fieldModels, new Comparator<FieldModel>() {
            // reverse sort the preferences to optimise the
            public int compare(final FieldModel o1, final FieldModel o2) {
                return o2.equalsPreference() - o1.equalsPreference();
            }
        });
        for (final FieldModel fm : fieldModels) {
            // System.out.println(fm.fieldName());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType());
            mv.visitVarInsn(ALOAD, 2);
            mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType());
            final Label l5 = new Label();
            if (fm.isCallsNotEquals()) {
                mv.visitMethodInsn(INVOKESTATIC, fm.bcLModelType(), "notEquals",
                        "(" + fm.bcLSetType() + fm.bcLSetType() + ")Z");
                mv.visitJumpInsn(IFEQ, l5);
            } else {
                mv.visitJumpInsn(IF_ICMPEQ, l5);
            }
            mv.visitInsn(ICONST_0);
            mv.visitInsn(IRETURN);
            mv.visitLabel(l5);
        }

        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        final Label l17 = new Label();
        mv.visitLabel(l17);
        mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l17, 0);
        mv.visitLocalVariable("o", "Ljava/lang/Object;", null, l0, l17, 1);
        mv.visitLocalVariable("that", "L" + name2 + ";", null, l4, l17, 2);
        mv.visitMaxs(4, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "hashCode", "()I", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        int count = 0;
        for (final FieldModel fm : tm.fields()) {
            // if (count > 5) break;
            // System.out.println(fm.fieldName());
            if (count > 0) {
                mv.visitIntInsn(BIPUSH, 31);
                mv.visitInsn(IMUL);
            }
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType());
            if (fm.isCallsHashCode()) {
                mv.visitMethodInsn(INVOKESTATIC, fm.bcLModelType(), "hashCode", "(" + fm.bcLSetType() + ")I");
            }

            if (count > 0) {
                mv.visitInsn(IADD);
            }
            count++;
        }
        mv.visitInsn(IRETURN);
        final Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l3, 0);
        mv.visitMaxs(6, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "copyOf", "(L" + name + ";)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(240, l0);

        boolean copySimpleValues = false;
        for (final FieldModel fm : tm.fields()) {
            if (!fm.copySimpleValue() || !hasListField) {
                // if (true) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEINTERFACE, name, "get" + fm.titleFieldName(),
                        "()" + fm.bcLFieldType());
                mv.visitMethodInsn(INVOKEVIRTUAL, name2, "set" + fm.titleFieldName(),
                        "(" + fm.bcLFieldType() + ")V");
            } else {
                copySimpleValues = true;
            }
        }
        final Label l4 = new Label();
        final Label l6 = new Label();
        if (copySimpleValues) {
            final Label l3 = new Label();
            mv.visitLabel(l3);
            mv.visitLineNumber(243, l3);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitTypeInsn(INSTANCEOF, name2);
            mv.visitJumpInsn(IFEQ, l4);
            final Label l5 = new Label();
            mv.visitLabel(l5);
            mv.visitLineNumber(238, l5);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitTypeInsn(CHECKCAST, name2);
            mv.visitVarInsn(ASTORE, 2);
            mv.visitLabel(l6);
            mv.visitLineNumber(239, l6);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitFieldInsn(GETFIELD, name2, "container", "L" + collections + "impl/AbstractHugeContainer;");
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name2, "container", "L" + collections + "impl/AbstractHugeContainer;");
            mv.visitJumpInsn(IF_ACMPNE, l4);
            for (final FieldModel fm : tm.fields()) {
                if (fm.copySimpleValue()) {
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitFieldInsn(GETFIELD, name2, "allocation", "L" + name + "Allocation;");
                    mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType());
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitFieldInsn(GETFIELD, name2, "offset", "I");
                    mv.visitVarInsn(ALOAD, 2);
                    mv.visitFieldInsn(GETFIELD, name2, "allocation", "L" + name + "Allocation;");
                    mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType());
                    mv.visitVarInsn(ALOAD, 2);
                    mv.visitFieldInsn(GETFIELD, name2, "offset", "I");
                    mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcStoreType(), "get", "(I)" + fm.bcLStoredType());
                    mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcStoreType(), "put",
                            "(I" + fm.bcLStoredType() + ")" + fm.bcLStoreType());
                    mv.visitInsn(POP);
                }
            }
        }
        final Label l16 = new Label();
        mv.visitLabel(l16);
        mv.visitLineNumber(238, l16);
        final Label l17 = new Label();
        mv.visitJumpInsn(GOTO, l17);
        mv.visitLabel(l4);
        mv.visitLineNumber(241, l4);
        for (final FieldModel fm : tm.fields()) {
            if (fm.copySimpleValue()) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEINTERFACE, name, "get" + fm.titleFieldName(),
                        "()" + fm.bcLFieldType());
                mv.visitMethodInsn(INVOKEVIRTUAL, name2, "set" + fm.titleFieldName(),
                        "(" + fm.bcLFieldType() + ")V");
            }
        }
        mv.visitLabel(l17);
        mv.visitLineNumber(251, l17);
        mv.visitInsn(RETURN);
        final Label l27 = new Label();
        mv.visitLabel(l27);
        mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l27, 0);
        mv.visitLocalVariable("t", "L" + name + ";", null, l0, l27, 1);
        if (copySimpleValues) {
            mv.visitLocalVariable("mte", "L" + name + "Element;", null, l6, l4, 2);
        }
        mv.visitMaxs(4, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "copyOf", "(Ljava/lang/Object;)V", null,
                null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(275, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, name);
        mv.visitMethodInsn(INVOKEVIRTUAL, name2, "copyOf", "(L" + name + ";)V");
        mv.visitInsn(RETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "Ljava/lang/Object;", null, l0, l1, 1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "writeExternal", "(Ljava/io/ObjectOutput;)V", null,
                new String[] { "java/io/IOException" });
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(185, l0);
        for (final FieldModel fm : tm.fields()) {
            mv.visitVarInsn(ALOAD, 1);
            if (fm.bcLSetType().equals(fm.bcLFieldType())) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType());
                mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "write",
                        "(Ljava/io/ObjectOutput;" + fm.bcLSetType() + ")V");
            } else {
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitVarInsn(ALOAD, 0);
                mv.visitMethodInsn(INVOKEVIRTUAL, name2, "get" + fm.titleFieldName(), "()" + fm.bcLFieldType());
                mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "write",
                        "(Ljava/io/ObjectOutput;Ljava/lang/Class;" + fm.bcLSetType() + ")V");
            }
        }
        final Label l13 = new Label();
        mv.visitLabel(l13);
        mv.visitLineNumber(288, l13);
        mv.visitInsn(RETURN);
        final Label l14 = new Label();
        mv.visitLabel(l14);
        mv.visitLocalVariable("this", "L" + name2 + ';', null, l0, l14, 0);
        mv.visitLocalVariable("out", "Ljava/io/ObjectOutput;", null, l0, l14, 1);
        mv.visitMaxs(4, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "readExternal", "(Ljava/io/ObjectInput;)V", null,
                new String[] { "java/io/IOException", "java/lang/ClassNotFoundException" });
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(287, l0);
        for (final FieldModel fm : tm.fields()) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 1);
            if (fm.bcLSetType().equals(fm.bcLFieldType())) {
                mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "read",
                        "(Ljava/io/ObjectInput;)" + fm.bcLSetType());
            } else {
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "read",
                        "(Ljava/io/ObjectInput;Ljava/lang/Class;)" + fm.bcLSetType());
                mv.visitTypeInsn(CHECKCAST, fm.bcFieldType());
            }
            mv.visitMethodInsn(INVOKEVIRTUAL, name2, "set" + fm.titleFieldName(),
                    "(" + fm.bcLFieldType() + ")V");
        }
        final Label l13 = new Label();
        mv.visitLabel(l13);
        mv.visitLineNumber(305, l13);
        mv.visitInsn(RETURN);
        final Label l14 = new Label();
        mv.visitLabel(l14);
        mv.visitLocalVariable("this", "L" + name2 + ";", null, l0, l14, 0);
        mv.visitLocalVariable("in", "Ljava/io/ObjectInput;", null, l0, l14, 1);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
}

From source file:com.yahoo.yqlplus.engine.internal.compiler.CodeEmitter.java

public void emitNewArray(TypeWidget elementType, BytecodeExpression e) {
    MethodVisitor mv = getMethodVisitor();
    exec(e);/*from w ww.  j a v a  2 s.  c  o  m*/
    cast(BaseTypeAdapter.INT32, e.getType());
    switch (elementType.getJVMType().getSort()) {
    case Type.BYTE:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_BYTE);
        break;
    case Type.BOOLEAN:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_BOOLEAN);
        break;
    case Type.SHORT:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_SHORT);
        break;
    case Type.INT:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_INT);
        break;
    case Type.CHAR:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_CHAR);
        break;
    case Type.FLOAT:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_FLOAT);
        break;
    case Type.LONG:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_LONG);
        break;
    case Type.DOUBLE:
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_DOUBLE);
        break;
    case Type.OBJECT:
        mv.visitTypeInsn(Opcodes.ANEWARRAY, elementType.getJVMType().getInternalName());
        break;
    default:
        throw new UnsupportedOperationException("unknown sort for newArray" + elementType.getJVMType());
    }

}

From source file:de.kandid.model.Emitter.java

License:Apache License

/**
 * Assembles a class that implements the given interface by generating the byte code.
 * @param interfaze the interface to implement
 * @return the class/*from w ww.j  a v a2  s  .c o m*/
 */
private static Class<? extends Emitter<?>> makeClass(Class<?> interfaze) {
    String nameClass = _nameEmitter + '$' + interfaze.getName().replace('.', '$');
    String nameInterface = Type.getInternalName(interfaze);
    // ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    ClassWriter cw = new ClassWriter(0);
    cw.visit(V1_4, ACC_PUBLIC + ACC_SUPER, nameClass, null, _nameEmitter, new String[] { name(interfaze) });

    // Generate default construcotor
    MethodVisitor cv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    cv.visitVarInsn(ALOAD, 0);
    cv.visitMethodInsn(INVOKESPECIAL, _nameEmitter, "<init>", "()V");
    cv.visitInsn(RETURN);
    cv.visitMaxs(1, 1);

    // Generate methods
    Method[] methods = interfaze.getMethods();
    for (int i = 0; i < methods.length; ++i) {
        final Method m = methods[i];
        if (m.getReturnType() != void.class)
            throw new IllegalArgumentException("Method " + m.toGenericString() + " must not return a value");
        final String descMethod = Type.getMethodDescriptor(m);
        final MethodVisitor mw = cw.visitMethod(ACC_PUBLIC + ACC_SYNCHRONIZED, m.getName(), descMethod, null,
                null);
        final Type[] argTypes = Type.getArgumentTypes(m);

        // for (int i = 0; i < _end; i += 2)
        //    ((Listener) _listeners[i]).send(...);

        int localStart = 1; // give one for "this"
        for (Type at : argTypes)
            localStart += at.getSize();
        Label entry = new Label();
        Label exit = new Label();
        mw.visitLabel(entry);

        // _isFiring = true;
        mw.visitVarInsn(ALOAD, 0);
        mw.visitInsn(Opcodes.ICONST_1);
        mw.visitFieldInsn(Opcodes.PUTFIELD, nameClass, "_isFiring", Type.BOOLEAN_TYPE.getDescriptor());

        // setup local variables: i, _listeners, _end
        mw.visitLocalVariable("i", Type.INT_TYPE.getDescriptor(), null, entry, exit, localStart);
        mw.visitInsn(Opcodes.ICONST_0);
        mw.visitIntInsn(Opcodes.ISTORE, localStart);

        mw.visitLocalVariable("listeners", _descObjectArray, null, entry, exit, localStart + 1);
        mw.visitVarInsn(ALOAD, 0);
        mw.visitFieldInsn(GETFIELD, nameClass, "_listeners", _descObjectArray);
        mw.visitIntInsn(Opcodes.ASTORE, localStart + 1);

        mw.visitLocalVariable("end", Type.INT_TYPE.getDescriptor(), null, entry, exit, localStart + 2);
        mw.visitVarInsn(ALOAD, 0);
        mw.visitFieldInsn(GETFIELD, nameClass, "_end", Type.INT_TYPE.getDescriptor());
        mw.visitIntInsn(Opcodes.ISTORE, localStart + 2);

        final Label condition = new Label();
        mw.visitJumpInsn(GOTO, condition);

        final Label loop = new Label();
        mw.visitLabel(loop);

        //((Listener) _listeners[i]).doSomething()
        mw.visitIntInsn(Opcodes.ALOAD, localStart + 1);
        mw.visitIntInsn(Opcodes.ILOAD, localStart);
        mw.visitInsn(Opcodes.AALOAD);
        mw.visitTypeInsn(CHECKCAST, nameInterface);
        int offs = 1; // give one for "this"
        for (Type at : argTypes) {
            mw.visitVarInsn(at.getOpcode(ILOAD), offs);
            offs += at.getSize();
        }
        mw.visitMethodInsn(INVOKEINTERFACE, nameInterface, m.getName(), descMethod);

        // i += 2
        mw.visitIincInsn(localStart, 2);

        // if (i < end) goto loop
        mw.visitLabel(condition);
        mw.visitIntInsn(Opcodes.ILOAD, localStart);
        mw.visitIntInsn(Opcodes.ILOAD, localStart + 2);
        mw.visitJumpInsn(Opcodes.IF_ICMPLT, loop);

        // _isFiring = false;
        mw.visitVarInsn(ALOAD, 0);
        mw.visitInsn(Opcodes.ICONST_0);
        mw.visitFieldInsn(Opcodes.PUTFIELD, nameClass, "_isFiring", Type.BOOLEAN_TYPE.getDescriptor());

        mw.visitLabel(exit);
        mw.visitInsn(RETURN);
        mw.visitMaxs(localStart + 2, localStart + 3);
        mw.visitEnd();
    }
    cw.visitEnd();
    return _loader.loadClass(cw, nameClass.replace('/', '.'));
}

From source file:dijkstra.gen.DijkstraCodeGenerator.java

License:Open Source License

public byte[] visit(ArrayDeclarationNode decl) {
    if (!mvStack.isEmpty() && !processingClassFields) {
        final MethodVisitor mv = mvStack.peek();
        for (IDNode id : decl.getIdList()) {
            decl.arrayLength.accept(this);
            if (decl.arrayLength.type == DijkstraType.INT) {
                mv.visitInsn(L2I);/*w w  w.  ja  v a 2 s. c  om*/
            } else {
                mv.visitInsn(D2I);
            }
            ArraySymbol symbol = ((ArraySymbol) id.symbol);
            if (id.symbol.isGlobal()) {
                if (symbol.getArrayType() == DijkstraType.INT) {
                    mv.visitIntInsn(NEWARRAY, T_LONG);
                    mv.visitFieldInsn(PUTSTATIC, fullPath, id.getName(), "[J");
                } else if (symbol.getArrayType() == DijkstraType.FLOAT) {
                    mv.visitIntInsn(NEWARRAY, T_DOUBLE);
                    mv.visitFieldInsn(PUTSTATIC, fullPath, id.getName(), "[D");
                } else if (symbol.getArrayType() == DijkstraType.BOOLEAN) {
                    mv.visitIntInsn(NEWARRAY, T_BOOLEAN);
                    mv.visitFieldInsn(PUTSTATIC, fullPath, id.getName(), "[Z");
                }
            } else {
                if (symbol.getArrayType() == DijkstraType.INT) {
                    mv.visitIntInsn(NEWARRAY, T_LONG);
                    mv.visitVarInsn(ASTORE, id.getAddress());
                } else if (symbol.getArrayType() == DijkstraType.FLOAT) {
                    mv.visitIntInsn(NEWARRAY, T_DOUBLE);
                    mv.visitVarInsn(ASTORE, id.getAddress());
                } else if (symbol.getArrayType() == DijkstraType.BOOLEAN) {
                    // boolean
                    mv.visitIntInsn(NEWARRAY, T_BOOLEAN);
                    mv.visitVarInsn(ASTORE, id.getAddress());
                }
            }
        }
    } else if (processingClassFields) {
        final MethodVisitor mv = mvStack.peek();
        for (IDNode id : decl.getIdList()) {
            mv.visitVarInsn(ALOAD, 0);
            decl.arrayLength.accept(this);
            if (decl.arrayLength.type == DijkstraType.INT) {
                mv.visitInsn(L2I);
            } else {
                mv.visitInsn(D2I);
            }
            ArraySymbol symbol = ((ArraySymbol) id.symbol);
            if (symbol.getArrayType() == DijkstraType.INT) {
                mv.visitIntInsn(NEWARRAY, T_LONG);
                mv.visitFieldInsn(PUTFIELD, fullPath, id.getName(), "[J");
            } else if (symbol.getArrayType() == DijkstraType.FLOAT) {
                mv.visitIntInsn(NEWARRAY, T_DOUBLE);
                mv.visitFieldInsn(PUTFIELD, fullPath, id.getName(), "[D");
            } else if (symbol.getArrayType() == DijkstraType.BOOLEAN) {
                mv.visitIntInsn(NEWARRAY, T_BOOLEAN);
                mv.visitFieldInsn(PUTFIELD, fullPath, id.getName(), "[Z");
            }
        }
    }
    return null;
}

From source file:dijkstra.gen.DijkstraCodeGenerator.java

License:Open Source License

public byte[] visit(AlternativeNode alternative) {
    final MethodVisitor mv = mvStack.peek();
    final Label endLabel = new Label();
    guardLabelStack.push(endLabel);//from  w  ww.  j  a v a  2s  .  co m
    visitChildren(alternative);
    guardLabelStack.pop();
    mv.visitIntInsn(BIPUSH, alternative.getLineNumber());
    mv.visitMethodInsn(INVOKESTATIC, "dijkstra/runtime/DijkstraRuntime", "abortNoAlternative", "(I)V", false);
    mv.visitLabel(endLabel);
    return null;
}

From source file:dijkstra.gen.DijkstraCodeGenerator.java

License:Open Source License

public byte[] visit(MethodCallNode node) {
    final MethodVisitor mv = mvStack.peek();
    final String objectType = ((ObjectSymbol) node.getObjectId().symbol).getObjectType();
    final StringBuilder sig = new StringBuilder();
    sig.append('(');
    List<Symbol> propertySymbols;
    if (node.getId().symbol.getType() == DijkstraType.PROCEDURE) {
        propertySymbols = ((ProcedureSymbol) node.getId().symbol).getParamSymbols();
    } else {/* w  w w .j av a 2s.com*/
        propertySymbols = ((FunctionSymbol) node.getId().symbol).getParamSymbols();
    }
    for (Symbol property : propertySymbols) {
        if (property.getType() == DijkstraType.INT) {
            sig.append('J');
        } else if (property.getType() == DijkstraType.FLOAT) {
            sig.append('D');
        } else {
            sig.append('Z');
        }
    }
    if (node.getId().symbol.getType() == FUNCTION) {
        sig.append(")[Ljava/lang/Object;");
    } else {
        sig.append(")V");
    }

    if (node.getObjectId().symbol.isGlobal() && !inClass) {
        mv.visitFieldInsn(GETSTATIC, fullPath, node.getObjectId().getName(),
                "L" + classPackage + "/" + ((ObjectSymbol) node.getObjectId().symbol).getObjectType() + ";");
    } else if (node.getObjectId().symbol.isGlobal() && inClass) {
        mv.visitFieldInsn(GETFIELD, fullPath, node.getObjectId().getName(),
                "L" + classPackage + "/" + ((ObjectSymbol) node.getObjectId().symbol).getObjectType() + ";");
    } else {
        mv.visitVarInsn(ALOAD, node.getObjectId().getAddress());
    }
    int paramIndex = 0;
    for (ASTNode arg : node.getArgs()) {
        arg.accept(this);
        if (arg.nodeType == FUNCALL) {
            paramIndex += ((FunctionSymbol) ((FunctionCallNode) arg).getId().symbol).getReturnTypes().size()
                    - 1;
        } else if (propertySymbols.get(paramIndex).getType() == DijkstraType.INT
                && arg.getType() == DijkstraType.FLOAT) {
            mv.visitInsn(D2L);
        } else if (propertySymbols.get(paramIndex).getType() == DijkstraType.FLOAT
                && arg.getType() == DijkstraType.INT) {
            mv.visitInsn(L2D);
        }
        paramIndex++;
    }
    //      mv.visitVarInsn(ALOAD, node.getObjectId().getAddress())
    mv.visitMethodInsn(INVOKEVIRTUAL, classPackage + "/" + objectType, node.getId().getName(), sig.toString(),
            false);

    if (node.getId().symbol.getType() == FUNCTION) {
        final FunctionSymbol fSymbol = ((FunctionSymbol) node.getId().symbol);
        returnArrayStack.push(new ArraySymbol(null, UNDEFINED));
        mv.visitVarInsn(ASTORE, JVMInfo.getAddressForSymbol(returnArrayStack.peek()));
        for (int i = 0; i < fSymbol.getReturnTypes().size(); i++) {
            // Load the only element in the array and put it on the stack
            mv.visitVarInsn(ALOAD, JVMInfo.getAddressForSymbol(returnArrayStack.peek()));
            mv.visitIntInsn(SIPUSH, i);
            mv.visitInsn(AALOAD);
            DijkstraType retType = fSymbol.getReturnTypes().get(i);
            if (retType == DijkstraType.INT) {
                mv.visitTypeInsn(CHECKCAST, "java/lang/Long");
                mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Long", "longValue", "()J", false);
            } else if (retType == DijkstraType.FLOAT) {
                mv.visitTypeInsn(CHECKCAST, "java/lang/Double");
                mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Double", "doubleValue", "()D", false);
            } else {
                mv.visitTypeInsn(CHECKCAST, "java/lang/Boolean");
                mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Boolean", "booleanValue", "()Z", false);
            }
        }
        returnArrayStack.pop();
    }
    return null;
}

From source file:dijkstra.gen.DijkstraCodeGenerator.java

License:Open Source License

public byte[] visit(FunctionDeclarationNode funDeclNode) {
    if (processingClassFields) {
        return null;
    }//  ww w .  j  av  a2 s . c  om
    final String methodName = funDeclNode.getIDNode().getName();
    final StringBuilder sig = new StringBuilder();
    sig.append('(');
    for (IDNode param : funDeclNode.getParamList()) {
        if (param.getType() == DijkstraType.INT) {
            sig.append('J');
        } else if (param.getType() == DijkstraType.FLOAT) {
            sig.append('D');
        } else {
            sig.append('Z');
        }
    }
    sig.append(')');
    sig.append("[Ljava/lang/Object;");

    if (inClass) {
        mvStack.push(cw.visitMethod(ACC_PUBLIC, methodName, sig.toString(), null, null));
    } else {
        mvStack.push(cw.visitMethod(ACC_PUBLIC + ACC_STATIC, methodName, sig.toString(), null, null));
    }
    final MethodVisitor mv = mvStack.peek();

    JVMInfo.enterScope(inClass);
    // Load the parameters into the JVMInfo so it knows the proper addresses
    for (IDNode param : funDeclNode.getParamList()) {
        param.getAddress();
    }

    mv.visitIntInsn(SIPUSH, funDeclNode.getReturnTypes().size());
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    returnArrayStack.push(new ArraySymbol(null, UNDEFINED));
    mv.visitVarInsn(ASTORE, JVMInfo.getAddressForSymbol(returnArrayStack.peek()));

    mv.visitInsn(ICONST_0);
    returnIndexStack.push(new Symbol(null, UNDEFINED));
    mv.visitVarInsn(ISTORE, JVMInfo.getAddressForSymbol(returnIndexStack.peek()));

    mv.visitCode();
    final Label startLabel = new Label();
    mv.visitLabel(startLabel);

    funDeclNode.getCompoundNode().accept(this);

    returnIndexStack.pop();
    mv.visitVarInsn(ALOAD, JVMInfo.getAddressForSymbol(returnArrayStack.pop()));
    mv.visitInsn(ARETURN);
    final Label endLabel = new Label();
    mv.visitLabel(endLabel);
    int paramLoc = 0;
    for (IDNode param : funDeclNode.getParamList()) {
        if (param.getType() == DijkstraType.INT) {
            mv.visitLocalVariable(param.getName(), "J", null, startLabel, endLabel, paramLoc);
            paramLoc += 2;
        } else if (param.getType() == DijkstraType.FLOAT) {
            mv.visitLocalVariable(param.getName(), "D", null, startLabel, endLabel, paramLoc);
            paramLoc += 2;
        } else {
            mv.visitLocalVariable(param.getName(), "Z", null, startLabel, endLabel, paramLoc);
            paramLoc += 1;
        }
    }
    mv.visitMaxs(0, 0);
    mv.visitEnd();
    JVMInfo.exitScope();
    mvStack.pop();
    return null;
}