Examples of org.mvel2.asm.MethodVisitor

org.mvel2.asm.MethodVisitor
A visitor to visit a Java method. The methods of this class must be called in the following order: ( visitParameter )* [ visitAnnotationDefault ] ( visitAnnotation | visitTypeAnnotation | visitAttribute )* [ visitCode ( visitFrame | visitXInsn | visitLabel | visitInsnAnnotation | visitTryCatchBlock | visitTryCatchBlockAnnotation | visitLocalVariable | visitLocalVariableAnnotation | visitLineNumber )* visitMaxs ] visitEnd. In addition, the visitXInsn and visitLabel methods must be called in the sequential order of the bytecode instructions of the visited code, visitInsnAnnotation must be called after the annotated instruction, visitTryCatchBlock must be called before the labels passed as arguments have been visited, visitTryCatchBlockAnnotation must be called after the corresponding try catch block has been visited, and the visitLocalVariable, visitLocalVariableAnnotation and visitLineNumber methods must be called after the labels passed as arguments have been visited. @author Eric Bruneton

            this.exceptions = exceptions;
            this.body = body;
        }


        public void write(ClassGenerator cg, ClassWriter cw) {
            MethodVisitor mv = cw.visitMethod(access, name, desc, signature, exceptions);
            mv.visitCode();


            try {
                body.writeBody(cg, mv);
                mv.visitMaxs(0, 0);
            } catch (Exception e) {
                throw new RuntimeException("Error writing method " + name, e);
            }


            mv.visitEnd();
        }

View Full Code Here

    private static class StaticInitializerDescr implements ClassPartDescr {


        private final List<MethodBody> initializerBodies = new ArrayList<MethodBody>();


        public void write(ClassGenerator cg, ClassWriter cw) {
            MethodVisitor mv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
            mv.visitCode();


            try {
                for (MethodBody initializerBody : initializerBodies) {
                    initializerBody.writeBody(cg, mv);
                }
            } catch (Exception e) {
                throw new RuntimeException("Error writing method static class initializer", e);
            }


            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }

View Full Code Here

     * @param cw
     */
    private void build3ArgConstructor(final Class< ? > superClazz,
                                      final String className,
                                      final ClassWriter cw) {
        MethodVisitor mv;
        {
            mv = cw.visitMethod( Opcodes.ACC_PUBLIC,
                                 "<init>",
                                 Type.getMethodDescriptor( Type.VOID_TYPE,
                                                           new Type[]{Type.getType( int.class ), Type.getType( Class.class ), Type.getType( ValueType.class )} ),
                                 null,
                                 null );
            mv.visitCode();
            final Label l0 = new Label();
            mv.visitLabel( l0 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            mv.visitVarInsn( Opcodes.ILOAD,
                             1 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             2 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             3 );
            mv.visitMethodInsn( Opcodes.INVOKESPECIAL,
                                Type.getInternalName( superClazz ),
                                "<init>",
                                Type.getMethodDescriptor( Type.VOID_TYPE,
                                                          new Type[]{Type.getType( int.class ), Type.getType( Class.class ), Type.getType( ValueType.class )} ) );
            final Label l1 = new Label();
            mv.visitLabel( l1 );
            mv.visitInsn( Opcodes.RETURN );
            final Label l2 = new Label();
            mv.visitLabel( l2 );
            mv.visitLocalVariable( "this",
                                   "L" + className + ";",
                                   null,
                                   l0,
                                   l2,
                                   0 );
            mv.visitLocalVariable( "index",
                                   Type.getDescriptor( int.class ),
                                   null,
                                   l0,
                                   l2,
                                   1 );
            mv.visitLocalVariable( "fieldType",
                                   Type.getDescriptor( Class.class ),
                                   null,
                                   l0,
                                   l2,
                                   2 );
            mv.visitLocalVariable( "valueType",
                                   Type.getDescriptor( ValueType.class ),
                                   null,
                                   l0,
                                   l2,
                                   3 );
            mv.visitMaxs( 0,
                          0 );
            mv.visitEnd();
        }
    }

View Full Code Here

                                                     new Class[]{InternalWorkingMemory.class, Object.class} );
        } catch ( final Exception e ) {
            throw new RuntimeDroolsException( "This is a bug. Please report back to JBoss Rules team.",
                                              e );
        }
        final MethodVisitor mv = cw.visitMethod( Opcodes.ACC_PUBLIC,
                                                 overridingMethod.getName(),
                                                 Type.getMethodDescriptor( overridingMethod ),
                                                 null,
                                                 null );


        mv.visitCode();


        final Label l0 = new Label();
        mv.visitLabel( l0 );
        mv.visitVarInsn( Opcodes.ALOAD,
                         2 );
        mv.visitTypeInsn( Opcodes.CHECKCAST,
                          Type.getInternalName( originalClass ) );


        if ( originalClass.isInterface() ) {
            mv.visitMethodInsn( Opcodes.INVOKEINTERFACE,
                                Type.getInternalName( originalClass ),
                                getterMethod.getName(),
                                Type.getMethodDescriptor( getterMethod ) );
        } else {
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( originalClass ),
                                getterMethod.getName(),
                                Type.getMethodDescriptor( getterMethod ) );
        }
        mv.visitInsn( Type.getType( fieldType ).getOpcode( Opcodes.IRETURN ) );
        final Label l1 = new Label();
        mv.visitLabel( l1 );
        mv.visitLocalVariable( "this",
                               "L" + className + ";",
                               null,
                               l0,
                               l1,
                               0 );
        mv.visitLocalVariable( "workingMemory",
                               Type.getDescriptor( InternalWorkingMemory.class ),
                               null,
                               l0,
                               l1,
                               1 );
        mv.visitLocalVariable( "object",
                               Type.getDescriptor( Object.class ),
                               null,
                               l0,
                               l1,
                               2 );
        mv.visitMaxs( 0,
                      0 );
        mv.visitEnd();
    }

View Full Code Here

                                  final String className,
                                  final Class< ? > superClass,
                                  final Method setterMethod,
                                  final Class< ? > fieldType,
                                  final ClassWriter cw) {
        MethodVisitor mv;
        // set method
        {
            Method overridingMethod;
            try {
                overridingMethod = superClass.getMethod( getOverridingSetMethodName( fieldType ),
                                                         new Class[]{Object.class, fieldType.isPrimitive() ? fieldType : Object.class} );
            } catch ( final Exception e ) {
                throw new RuntimeDroolsException( "This is a bug. Please report back to JBoss Rules team.",
                                                  e );
            }


            mv = cw.visitMethod( Opcodes.ACC_PUBLIC,
                                 overridingMethod.getName(),
                                 Type.getMethodDescriptor( overridingMethod ),
                                 null,
                                 null );


            mv.visitCode();
            final Label l0 = new Label();
            mv.visitLabel( l0 );


            mv.visitVarInsn( Opcodes.ALOAD,
                             1 );
            mv.visitTypeInsn( Opcodes.CHECKCAST,
                              Type.getInternalName( originalClass ) );


            mv.visitVarInsn( Type.getType( fieldType ).getOpcode( Opcodes.ILOAD ),
                             2 );


            if ( !fieldType.isPrimitive() ) {
                mv.visitTypeInsn( Opcodes.CHECKCAST,
                                  Type.getInternalName( fieldType ) );
            }


            if ( originalClass.isInterface() ) {
                mv.visitMethodInsn( Opcodes.INVOKEINTERFACE,
                                    Type.getInternalName( originalClass ),
                                    setterMethod.getName(),
                                    Type.getMethodDescriptor( setterMethod ) );
            } else {
                mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                    Type.getInternalName( originalClass ),
                                    setterMethod.getName(),
                                    Type.getMethodDescriptor( setterMethod ) );
            }


            mv.visitInsn( Opcodes.RETURN );


            final Label l1 = new Label();
            mv.visitLabel( l1 );
            mv.visitLocalVariable( "this",
                                   "L" + className + ";",
                                   null,
                                   l0,
                                   l1,
                                   0 );
            mv.visitLocalVariable( "bean",
                                   Type.getDescriptor( Object.class ),
                                   null,
                                   l0,
                                   l1,
                                   1 );
            mv.visitLocalVariable( "value",
                                   Type.getDescriptor( fieldType ),
                                   null,
                                   l0,
                                   l1,
                                   2 );
            mv.visitMaxs( 0,
                          0 );
            mv.visitEnd();


        }
    }

View Full Code Here

        String coreName = coreKlazz.getName();
        String wrapperName = coreName + "Wrapper";


        ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_MAXS );
        FieldVisitor fv;
        MethodVisitor mv;


        cw.visit( ClassGenerator.JAVA_VERSION, ACC_PUBLIC + ACC_SUPER,
                BuildUtils.getInternalType( wrapperName ),
                BuildUtils.getTypeDescriptor( coreName ) +
                        "Lorg/drools/factmodel/traits/CoreWrapper<" + BuildUtils.getTypeDescriptor( coreName ) + ">;",
                BuildUtils.getInternalType( coreName ),
                new String[] { Type.getInternalName( CoreWrapper.class ), Type.getInternalName( Externalizable.class ) } );


        {
            AnnotationVisitor av0 = cw.visitAnnotation( Type.getDescriptor( Traitable.class ), true );
            av0.visit( "logical", core.isFullTraiting() );
        }


        {
            fv = cw.visitField( ACC_PRIVATE, "core", BuildUtils.getTypeDescriptor( coreName ), null, null);
            fv.visitEnd();
        }
        {
            fv = cw.visitField( ACC_PRIVATE, TraitableBean.MAP_FIELD_NAME, Type.getDescriptor( Map.class ), "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null );
            fv.visitEnd();
        }
        {
            fv = cw.visitField( ACC_PRIVATE, TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ), "Ljava/util/Map<Ljava/lang/String;Lorg/drools/factmodel/traits/Thing;>;", null );
            fv.visitEnd();
        }
        {
            fv = cw.visitField( ACC_PRIVATE, TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor( TraitFieldTMS.class ), null, null );
            fv.visitEnd();
        }


        {
            mv = cw.visitMethod( ACC_PUBLIC, "<init>", "()V", null, null );
            mv.visitCode();


            try {
                coreKlazz.getConstructor();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn( INVOKESPECIAL, BuildUtils.getInternalType( coreName ), "<init>", "()V" );
            } catch ( NoSuchMethodException nsme ) {
                Constructor con = coreKlazz.getConstructors()[ 0 ];
                Class[] params = con.getParameterTypes();


                mv.visitVarInsn( ALOAD, 0 );
                for ( Class param : params ) {
                    mv.visitInsn( BuildUtils.zero( param.getName() ) );
                }
                mv.visitMethodInsn( INVOKESPECIAL,
                                    BuildUtils.getInternalType( coreName ),
                                    "<init>",
                                    Type.getConstructorDescriptor( con ) );
            }




//            mv.visitVarInsn( ALOAD, 0 );
//            mv.visitTypeInsn( NEW, Type.getInternalName( HashMap.class ) );
//            mv.visitInsn( DUP );
//            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
//            mv.visitFieldInsn( PUTFIELD,
//                    BuildUtils.getInternalType( wrapperName ),
//                    TraitableBean.MAP_FIELD_NAME,
//                    Type.getDescriptor( Map.class ) );


//            mv.visitVarInsn( ALOAD, 0 );
//            mv.visitTypeInsn( NEW, Type.getInternalName( VetoableTypedMap.class ) );
//            mv.visitInsn( DUP );
//            mv.visitTypeInsn( NEW, Type.getInternalName( HashMap.class ) );
//            mv.visitInsn( DUP );
//            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
//            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( VetoableTypedMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
//            mv.visitFieldInsn( PUTFIELD,
//                    BuildUtils.getInternalType( wrapperName ),
//                    TraitableBean.TRAITSET_FIELD_NAME,
//                    Type.getDescriptor( Map.class ) );


            mv.visitInsn( RETURN );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "getCore" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "getCore", "()" + Type.getDescriptor( Object.class ), "()"+BuildUtils.getTypeDescriptor( coreName ), null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD,
                        BuildUtils.getInternalType( wrapperName ),
                        "core",
                        BuildUtils.getTypeDescriptor( coreName ));
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "_getDynamicProperties" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "_getDynamicProperties", "()" + Type.getDescriptor( Map.class ), "()Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null);
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD,
                        BuildUtils.getInternalType( wrapperName ),
                        TraitableBean.MAP_FIELD_NAME,
                        Type.getDescriptor( Map.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();


                mv = cw.visitMethod( ACC_PUBLIC,
                        "_setDynamicProperties",
                        "(" + Type.getDescriptor( Map.class ) + ")V",
                        "(Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)V",
                        null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( RETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "_getTraitMap" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "_getTraitMap", "()" + Type.getDescriptor( Map.class ),
                        "()Ljava/util/Map<Ljava/lang/String;Lorg/drools/factmodel/traits/Thing;>;", null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                Label l0 = new Label();
                mv.visitJumpInsn( IFNULL, l0 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitFieldInsn( GETSTATIC, Type.getInternalName( Collections.class ), "EMPTY_MAP", Type.getDescriptor( Map.class ) );
                Label l1 = new Label();
                mv.visitJumpInsn( IF_ACMPNE, l1 );
                mv.visitLabel( l0 );


                mv.visitVarInsn( ALOAD, 0 );
                mv.visitTypeInsn( NEW, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitInsn( DUP );
                mv.visitTypeInsn( NEW, Type.getInternalName( HashMap.class ) );
                mv.visitInsn( DUP );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TraitTypeMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitLabel( l1 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "setTraitMap", Map.class ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "setTraitMap", "(Ljava/util/Map;)V", null, null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitTypeInsn( NEW, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitInsn( DUP );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TraitTypeMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( RETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "addTrait", String.class, Thing.class ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "addTrait",
                        "(" + Type.getDescriptor( String.class ) + Type.getDescriptor( Thing.class ) + ")V",
                        "(" + Type.getDescriptor( String.class ) + Type.getDescriptor( Thing.class ) + ")V",
                        null);
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( wrapperName ), "_getTraitMap", "()" + Type.getDescriptor( Map.class ) );
                mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitVarInsn( ALOAD, 2 );
                mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( TraitTypeMap.class ), "putSafe",
                        "(" + Type.getDescriptor( String.class ) + Type.getDescriptor( Thing.class ) + ")" + Type.getDescriptor( Thing.class ) );
                mv.visitInsn( POP );
                mv.visitInsn( RETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "getTrait", String.class ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "getTrait",
                        "(" + Type.getDescriptor( String.class ) + ")" + Type.getDescriptor( Thing.class ),
                        "(" + Type.getDescriptor( String.class ) + ")" + Type.getDescriptor( Thing.class ),
                        null );
                mv.visitCode();
                mv.visitVarInsn(ALOAD, 0);
                mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "get",
                        "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class));
                mv.visitTypeInsn(CHECKCAST, Type.getInternalName(Thing.class));
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "hasTraits" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC,
                                     "hasTraits",
                                     Type.getMethodDescriptor( Type.getType( boolean.class ), new Type[] {} ),
                                     null,
                                     null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
                Label l5 = new Label();
                mv.visitJumpInsn( IFNULL, l5 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
                mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( Map.class ), "isEmpty", Type.getMethodDescriptor( Type.BOOLEAN_TYPE, new Type[] {} ) );
                mv.visitJumpInsn( IFNE, l5 );
                mv.visitInsn( ICONST_1 );
                Label l4 = new Label();
                mv.visitJumpInsn( GOTO, l4 );
                mv.visitLabel( l5 );
                mv.visitInsn( ICONST_0 );
                mv.visitLabel( l4 );
                mv.visitInsn( IRETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "hasTrait", String.class ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "hasTrait", "(" + Type.getDescriptor( String.class )+ ")Z", null, null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( wrapperName ), "_getTraitMap", "()" + Type.getDescriptor( Map.class ) );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( Map.class ), "containsKey", "(" + Type.getDescriptor( Object.class ) + ")Z" );
                mv.visitInsn( IRETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "removeTrait", String.class ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "removeTrait",
                        Type.getMethodDescriptor( Type.getType( Collection.class ), new Type[] { Type.getType( String.class ) } ),
                        Type.getMethodDescriptor( Type.getType( Collection.class ), new Type[] { Type.getType( String.class ) } ),
                        null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( wrapperName ), "_getTraitMap", Type.getMethodDescriptor( Type.getType( Map.class ), new Type[] {} ) );
                mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( TraitTypeMap.class ), "removeCascade",
                        Type.getMethodDescriptor( Type.getType( Collection.class ), new Type[] { Type.getType( String.class )} ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();


                mv = cw.visitMethod( ACC_PUBLIC, "removeTrait",
                        Type.getMethodDescriptor( Type.getType( Collection.class ), new Type[] { Type.getType( BitSet.class ) } ),
                        Type.getMethodDescriptor( Type.getType( Collection.class ), new Type[] { Type.getType( BitSet.class ) } ),
                        null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( wrapperName ), "_getTraitMap", Type.getMethodDescriptor( Type.getType( Map.class ), new Type[] {} ) );
                mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( TraitTypeMap.class ), "removeCascade",
                        Type.getMethodDescriptor( Type.getType( Collection.class ), new Type[] { Type.getType( BitSet.class )} ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();


            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "getTraits" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "getTraits", "()" + Type.getDescriptor( Collection.class ), "()Ljava/util/Collection<Ljava/lang/String;>;", null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( wrapperName ), "_getTraitMap", "()" + Type.getDescriptor( Map.class ) );
                mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( Map.class ), "keySet", "()" + Type.getDescriptor( Set.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }
        if ( coreKlazz == null || needsMethod( coreKlazz, "_setBottomTypeCode" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "_setBottomTypeCode", "(" + Type.getDescriptor( BitSet.class )+ ")V", null, null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME , Type.getDescriptor( Map.class ) );
                mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( TraitTypeMap.class ), "setBottomCode", "(" + Type.getDescriptor( BitSet.class ) + ")V");
                mv.visitInsn( RETURN );
                mv.visitMaxs( 0,0 );
                mv.visitEnd();
            }
        }


        if ( coreKlazz == null || needsMethod( coreKlazz, "getCurrentTypeCode" ) ) {


            {
                mv = cw.visitMethod( ACC_PUBLIC, "getCurrentTypeCode", "()" + Type.getDescriptor( BitSet.class ), null, null );
                mv.visitCode();


                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD,
                                   BuildUtils.getInternalType( wrapperName ),
                                   TraitableBean.TRAITSET_FIELD_NAME,
                                   Type.getDescriptor( Map.class ) );
                Label l3 = new Label();
                mv.visitJumpInsn( IFNONNULL, l3 );
                mv.visitInsn( ACONST_NULL );
                mv.visitInsn( ARETURN );
                mv.visitLabel( l3 );


                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD,
                        BuildUtils.getInternalType( wrapperName ),
                        TraitableBean.TRAITSET_FIELD_NAME,
                        Type.getDescriptor( Map.class ) );
                mv.visitTypeInsn( CHECKCAST,
                        Type.getInternalName( TraitTypeMap.class ) );
                mv.visitMethodInsn( INVOKEVIRTUAL,
                        Type.getInternalName( TraitTypeMap.class ),
                        "getCurrentTypeCode",
                        "()" + Type.getDescriptor( BitSet.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }


        if ( coreKlazz == null || needsMethod( coreKlazz, "getMostSpecificTraits" ) ) {


            {
                mv = cw.visitMethod( ACC_PUBLIC,
                        "getMostSpecificTraits",
                        "()" + Type.getDescriptor( Collection.class ),
                        "()Ljava/util/Collection<Lorg/drools/factmodel/traits/Thing;>;",
                        null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ),
                        TraitableBean.TRAITSET_FIELD_NAME ,
                        Type.getDescriptor( Map.class ) );
                mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitMethodInsn( INVOKEVIRTUAL,
                        Type.getInternalName( TraitTypeMap.class ),
                        "getMostSpecificTraits",
                        "()" + Type.getDescriptor( Collection.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();


            }
        }




        if ( coreKlazz == null || needsMethod( coreKlazz, "_getFieldTMS", TraitFieldTMS.class ) ) {
            {
                mv = cw.visitMethod( Opcodes.ACC_PUBLIC,
                                     "_getFieldTMS",
                                     Type.getMethodDescriptor( Type.getType( TraitFieldTMS.class ), new Type[] {} ),
                                     null,
                                     null);
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor( TraitFieldTMS.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();


            }
        }


        if ( coreKlazz == null || needsMethod( coreKlazz, "_setFieldTMS", TraitFieldTMS.class ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC,
                                     "_setFieldTMS",
                                     Type.getMethodDescriptor( Type.VOID_TYPE, new Type[] { Type.getType( TraitFieldTMS.class ) } ),
                                     null,
                                     null);
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitFieldInsn ( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor( TraitFieldTMS.class ) );
                mv.visitInsn( RETURN) ;
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }






        {
            mv = cw.visitMethod( ACC_PUBLIC, "writeExternal", "(" + Type.getDescriptor( ObjectOutput.class ) + ")V", null, new String[] { Type.getInternalName( IOException.class ) } );
            mv.visitCode();


            mv.visitVarInsn( ALOAD, 1 );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( wrapperName ), "getCore", "()" + Type.getDescriptor( Object.class ) );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectOutput.class ), "writeObject", "(" + Type.getDescriptor( Object.class ) + ")V" );




            mv.visitVarInsn( ALOAD, 1 );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor( Map.class ) );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectOutput.class ), "writeObject", "(" + Type.getDescriptor( Object.class ) + ")V" );


            mv.visitVarInsn( ALOAD, 1 );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectOutput.class ), "writeObject", "(" + Type.getDescriptor( Object.class ) + ")V" );


            mv.visitVarInsn( ALOAD, 1 );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor( Map.class ) );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectOutput.class ), "writeObject", "(" + Type.getDescriptor( Object.class ) + ")V" );


            mv.visitInsn( RETURN );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod( ACC_PUBLIC, "readExternal", "(" + Type.getDescriptor( ObjectInput.class ) + ")V", null,
                    new String[] { Type.getInternalName( IOException.class ), Type.getInternalName( ClassNotFoundException.class ) } );
            mv.visitCode();


            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectInput.class ), "readObject", "()" + Type.getDescriptor( Object.class ) );
            mv.visitTypeInsn( CHECKCAST, BuildUtils.getInternalType( coreName ) );
            mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), "core", BuildUtils.getTypeDescriptor( coreName ) );


            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectInput.class ), "readObject", "()" + Type.getDescriptor( Object.class ) );
            mv.visitTypeInsn( CHECKCAST, Type.getInternalName( Map.class ) );
            mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor( Map.class ) );


            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectInput.class ), "readObject", "()" + Type.getDescriptor( Object.class ) );
            mv.visitTypeInsn( CHECKCAST, Type.getInternalName( Map.class ) );
            mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );


            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( ObjectInput.class ), "readObject", "()" + Type.getDescriptor( Object.class ) );
            mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitFieldTMS.class ) );
            mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor( TraitFieldTMS.class ) );


            mv.visitInsn( RETURN );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();
        }


        {
            mv = cw.visitMethod( ACC_PUBLIC, "init", "("+ BuildUtils.getTypeDescriptor( coreName ) +")V", null, null );
            mv.visitCode();
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitFieldInsn( PUTFIELD,
                    BuildUtils.getInternalType( wrapperName ),
                    "core",
                    BuildUtils.getTypeDescriptor( coreName ) );


            initializeDynamicTypeStructures( mv, wrapperName, core );


            mv.visitInsn( RETURN );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();
        }




        Method[] ms = coreKlazz.getMethods();
        for ( Method method : ms ) {
            if ( Modifier.isFinal( method.getModifiers() ) ) {
                continue;
            }


            String signature = TraitFactory.buildSignature( method );
            {
                mv = cw.visitMethod( ACC_PUBLIC,
                        method.getName(),
                        signature,
                        null,
                        null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), "core", BuildUtils.getTypeDescriptor( coreName ) );


                Label l0 = new Label();
                    mv.visitJumpInsn( IFNONNULL, l0 );
                    if ( method.getReturnType() == void.class ) {
                        mv.visitInsn( RETURN );
                    } else {
                        mv.visitInsn( BuildUtils.zero( method.getReturnType().getName() ) );
                        mv.visitInsn( BuildUtils.returnType( method.getReturnType().getName() ) );
                    }
                mv.visitLabel( l0 );


                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), "core", BuildUtils.getTypeDescriptor( coreName ) );


                int j = 1;
                for ( Class arg : method.getParameterTypes() ) {
                    mv.visitVarInsn( BuildUtils.varType( arg.getName() ), j++ );
                }
                mv.visitMethodInsn( INVOKEVIRTUAL,
                        BuildUtils.getInternalType( coreName ),
                        method.getName(),
                        signature );


                mv.visitInsn( BuildUtils.returnType( method.getReturnType().getName() ) );
                int stack = TraitFactory.getStackSize( method );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }


        }


        {
            mv = cw.visitMethod( ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "init", "(" + Type.getDescriptor( Object.class ) + ")V", null, null );
            mv.visitCode();
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitTypeInsn( CHECKCAST, BuildUtils.getInternalType( coreName ) );
            mv.visitMethodInsn( INVOKEVIRTUAL,
                    BuildUtils.getInternalType( wrapperName ),
                    "init",
                    "(" + BuildUtils.getTypeDescriptor( coreName ) + ")V" );
            mv.visitInsn( RETURN );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();
        }


        cw.visitEnd();


        return cw.toByteArray();

View Full Code Here

            this.exceptions = exceptions;
            this.body = body;
        }


        public void write(ClassGenerator cg, ClassWriter cw) {
            MethodVisitor mv = cw.visitMethod(access, name, desc, signature, exceptions);
            mv.visitCode();


            try {
                body.writeBody(cg, mv);
                mv.visitMaxs(0, 0);
            } catch (Exception e) {
                throw new RuntimeException("Error writing method " + name, e);
            }


            mv.visitEnd();
        }

View Full Code Here

    private static class StaticInitializerDescr implements ClassPartDescr {


        private final List<MethodBody> initializerBodies = new ArrayList<MethodBody>();


        public void write(ClassGenerator cg, ClassWriter cw) {
            MethodVisitor mv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
            mv.visitCode();


            try {
                for (MethodBody initializerBody : initializerBodies) {
                    initializerBody.writeBody(cg, mv);
                }
            } catch (Exception e) {
                throw new RuntimeException("Error writing method static class initializer", e);
            }


            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }

View Full Code Here


    }


    protected void buildSetter( ClassWriter cw, FieldDefinition field, String name, String type, String generic ) {


        MethodVisitor mv = cw.visitMethod( ACC_PUBLIC + ACC_ABSTRACT,
                BuildUtils.setterName( name, type ),
                "(" + BuildUtils.getTypeDescriptor( type ) + ")V",
                generic == null ? null :
                        "(" + BuildUtils.getTypeDescriptor( type ).replace( ";", "<" + BuildUtils.getTypeDescriptor( generic ) + ">;") + ")V",
                null );
        mv.visitEnd();


    }

View Full Code Here

    }


    protected void buildGetter( ClassWriter cw, FieldDefinition field, String name, String type, String generic ) {
        
        name = name.substring( 0, 1 ).toUpperCase() + name.substring( 1 );
        MethodVisitor mv = cw.visitMethod( ACC_PUBLIC + ACC_ABSTRACT,
                BuildUtils.getterName( name, type ),
                "()" + BuildUtils.getTypeDescriptor( type ),
                generic == null ? null :
                        "()" + BuildUtils.getTypeDescriptor( type ).replace( ";", "<" + BuildUtils.getTypeDescriptor( generic ) + ">;" ),
                null );
        mv.visitEnd();


    }

View Full Code Here

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loop.AsmMvelPerformanceBenchmark

org.drools.adventures.GameEngine

org.drools.base.ClassFieldAccessorFactory

org.drools.base.extractors.MVELClassFieldReader

org.drools.base.extractors.MVELObjectClassFieldReader

org.drools.base.ModifyInterceptor

org.drools.base.mvel.DroolsMVELFactory

org.drools.base.mvel.DroolsProcessMVELFactory

org.drools.base.mvel.MVELAccumulator

org.drools.base.mvel.MVELAction

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