Package org.mvel2.ast

Examples of org.mvel2.ast.LiteralNode

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        mv.visitVarInsn( ALOAD, 1 );
        mv.visitMethodInsn( INVOKEVIRTUAL,
                            Type.getInternalName( String.class ),
                            "equals",
                            "(" + Type.getDescriptor( Object.class ) + ")Z" );
        Label l0 = new Label();
        mv.visitJumpInsn( IFEQ, l0 );
        mv.visitInsn( ICONST_1 );
        mv.visitInsn( IRETURN );
        mv.visitLabel( l0 );
    }
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    protected void invokeGet( MethodVisitor mv, String wrapperName, ClassDefinition core, String fieldName, FieldDefinition field) {
        mv.visitLdcInsn( fieldName );
        mv.visitVarInsn( ALOAD, 1);
        mv.visitMethodInsn( INVOKEVIRTUAL, "java/lang/String", "equals", "(" + Type.getDescriptor( Object.class ) + ")Z" );
        Label l0 = new Label();
        mv.visitJumpInsn( IFEQ, l0 );

        TraitFactory.invokeExtractor( mv, wrapperName, trait, core, field );

        if ( BuildUtils.isPrimitive( field.getTypeName() ) ) {
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    protected void invokePut( MethodVisitor mv, String wrapperName, ClassDefinition core, String fieldName, FieldDefinition field ) {
        mv.visitLdcInsn( fieldName );
        mv.visitVarInsn( ALOAD, 1 );
        mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( String.class ), "equals", "(" + Type.getDescriptor( Object.class ) + ")Z" );
        Label l1 = new Label();
        mv.visitJumpInsn( IFEQ, l1 );
       
        mv.visitVarInsn( ALOAD, 2 );
        if ( BuildUtils.isPrimitive( field.getTypeName() ) ) {
            TraitFactory.primitiveValue( mv, field.getTypeName() );
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        mv.visitFieldInsn( PUTFIELD, internalProxy, "fields", Type.getDescriptor( Map.class ) );


        mv.visitVarInsn( ALOAD, 1 );
        mv.visitMethodInsn( INVOKEVIRTUAL, internalCore, "_getDynamicProperties", "()" + Type.getDescriptor( Map.class ) );
        Label l0 = new Label();
        mv.visitJumpInsn( IFNONNULL, l0 );

        mv.visitVarInsn( ALOAD, 1 );
        mv.visitTypeInsn( NEW, Type.getInternalName( TripleBasedBean.class ) );
        mv.visitInsn( DUP );
        mv.visitVarInsn( ALOAD, 1 );
        mv.visitVarInsn( ALOAD, 2 );
        mv.visitVarInsn( ALOAD, 3 );
        mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TripleBasedBean.class ), "<init>",
                            "(" + Type.getDescriptor( Object.class ) + Type.getDescriptor( TripleStore.class ) + Type.getDescriptor( TripleFactory.class ) + ")V" );
        mv.visitMethodInsn( INVOKEVIRTUAL, internalCore, "_setDynamicProperties", "(" + Type.getDescriptor( Map.class ) + ")V" );

        mv.visitLabel( l0 );



        mv.visitVarInsn( ALOAD, 1 );
        mv.visitMethodInsn( INVOKEVIRTUAL, internalCore, "_getTraitMap", "()" + Type.getDescriptor( Map.class ) );
        Label l1 = new Label();
        mv.visitJumpInsn( IFNONNULL, l1 );

        mv.visitVarInsn( ALOAD, 1 );
        mv.visitTypeInsn( NEW, Type.getInternalName( TraitTypeMap.class ) );
        mv.visitInsn( DUP );
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        mv.visitVarInsn( ASTORE, 1 );
        mv.visitVarInsn( ALOAD, 1 );

        if ( BuildUtils.isPrimitive( fieldType ) ) {

            Label l0 = new Label();
            mv.visitJumpInsn( IFNULL, l0 );
            mv.visitVarInsn( ALOAD, 1 );
            Label l1 = new Label();
            mv.visitJumpInsn( GOTO, l1 );
            mv.visitLabel( l0 );
            mv.visitInsn( BuildUtils.zero( fieldType ) );
            mv.visitMethodInsn( Opcodes.INVOKESTATIC,
                                BuildUtils.getInternalType( BuildUtils.box( fieldType ) ),
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        mv.visitVarInsn( ASTORE, 1 );
        mv.visitVarInsn( ALOAD, 1 );

        if ( BuildUtils.isPrimitive( fieldType ) ) {
            Label l0 = new Label();
            mv.visitJumpInsn( IFNULL, l0 );
            mv.visitVarInsn( ALOAD, 1 );
            Label l1 = new Label();
            mv.visitJumpInsn( GOTO, l1 );
            mv.visitLabel( l0 );
            mv.visitInsn( BuildUtils.zero( fieldType ) );
            mv.visitMethodInsn( Opcodes.INVOKESTATIC,
                                BuildUtils.getInternalType( BuildUtils.box( fieldType ) ),
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            FieldDefinition hardField = core.getFieldByAlias( field.resolveAlias() );
            if ( ! field.getType().isPrimitive() && ! field.getTypeName().equals( hardField.getTypeName() ) ) {
                boolean isCoreTrait = hardField.getType().getAnnotation( Trait.class ) != null;
                boolean isTraitTrait = field.getType().getAnnotation( Trait.class ) != null;

                Label l0 = new Label();
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitJumpInsn( IFNULL, l0 );
                if ( isCoreTrait && ! isTraitTrait ) {
                    mv.visitVarInsn( ALOAD, 1 );
                    mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitableBean.class ) );
                    mv.visitLdcInsn( hardField.getTypeName() );
                    mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( TraitableBean.class ), "getTrait", Type.getMethodDescriptor( Type.getType( Thing.class ), new Type[] { Type.getType( String.class ) } ) );
                    mv.visitVarInsn( ASTORE, 1 );
                } else if ( ! isCoreTrait && isTraitTrait ) {
                    mv.visitVarInsn( ALOAD, 1 );
                    mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitProxy.class ) );
                    mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( TraitProxy.class ), "getObject", Type.getMethodDescriptor( Type.getType( TraitableBean.class ), new Type[]{ } ) );
                    mv.visitVarInsn( ASTORE, 1 );
                } else if ( isCoreTrait && isTraitTrait ) {
                    mv.visitVarInsn( ALOAD, 1 );
                    mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitProxy.class ) );
                    mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( TraitProxy.class ), "getObject", Type.getMethodDescriptor( Type.getType( TraitableBean.class ), new Type[] {} ) );
                    mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitableBean.class ) );
                    mv.visitLdcInsn( hardField.getTypeName() );
                    mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( TraitableBean.class ), "getTrait", Type.getMethodDescriptor( Type.getType( Thing.class ), new Type[] { Type.getType( String.class ) } ) );
                    mv.visitVarInsn( ASTORE, 1 );
                } else {
                    // handled by normal inheritance, exceptions should have been thrown
                    if ( ! hardField.getType().isAssignableFrom( field.getType() ) ) {
                        mv.visitInsn( RETURN );
                    }
                }
                Label l1 = new Label();
                mv.visitJumpInsn(GOTO, l1);

                mv.visitLabel( l0 );
                mv.visitInsn( ACONST_NULL );
                mv.visitVarInsn( ASTORE, 1 );
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    protected void buildCommonMethods( ClassWriter cw, String proxy ) {
        MethodVisitor mv;
        {
            mv = cw.visitMethod( ACC_PUBLIC, "toString", "()" + Type.getDescriptor( String.class ), null, null );
            mv.visitCode();
            mv.visitTypeInsn( NEW, Type.getInternalName( StringBuilder.class ) );
            mv.visitInsn( DUP );
            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( StringBuilder.class ), "<init>", "()V" );
            mv.visitLdcInsn( "(@" + proxy + ") : " );
            mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( StringBuilder.class ), "append", "(" + Type.getDescriptor( String.class ) + ")" + Type.getDescriptor( StringBuilder.class ) );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( proxy ), "getFields", "()" + Type.getDescriptor( Map.class ) );
            mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( Map.class ) , "entrySet", "()" + Type.getDescriptor( Set.class ) );
            mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( Object.class ), "toString", "()" + Type.getDescriptor( String.class ));
            mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( StringBuilder.class ), "append", "(" + Type.getDescriptor( String.class ) + ")" + Type.getDescriptor( StringBuilder.class ) );
            mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( StringBuilder.class ), "toString", "()" + Type.getDescriptor( String.class ));
            mv.visitInsn( ARETURN );
//            mv.visitMaxs( 2, 1 );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();

        }

    }
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        buildSynchFields( cw, TraitFactory.getProxyName( trait, core ), trait, core, mask );
    }

    protected void buildSynchFields( ClassWriter cw, String proxyName, ClassDefinition trait, ClassDefinition core, BitSet mask ) {
        {
            MethodVisitor mv = cw.visitMethod( ACC_PRIVATE, "synchFields", Type.getMethodDescriptor( Type.VOID_TYPE, new Type[] { Type.BOOLEAN_TYPE } ), null, null );
            mv.visitCode();

            if ( core.isFullTraiting() ) {
                Iterator<FieldDefinition> iter = trait.getFieldsDefinitions().iterator();
                for ( int j = 0; j < trait.getFieldsDefinitions().size(); j++ ) {
                    FieldDefinition fld = iter.next();
                    boolean hardField = ! TraitRegistry.isSoftField( fld, j, mask );
                    synchFieldLogical( mv, fld, proxyName, trait, core, hardField, j + 3 );
                }
            } else {
                for ( FieldDefinition fld : trait.getFieldsDefinitions() ) {
                    if ( fld.getInitExpr() != null ) {
                        synchField( mv, fld, proxyName );
                    }
                }
            }

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


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

        // get the method bitmask
        BitSet mask = traitRegistry.getFieldMask(trait.getName(), core.getDefinedClass().getName());

        String name = TraitFactory.getPropertyWrapperName( trait, core );
        String masterName = TraitFactory.getProxyName(trait, core);


        String internalWrapper  = BuildUtils.getInternalType( name );
        String descrCore        = Type.getDescriptor( core.getDefinedClass() );
        String internalCore     = Type.getInternalName( core.getDefinedClass() );


        cw.visit( ClassGenerator.JAVA_VERSION, ACC_PUBLIC + ACC_SUPER,
                internalWrapper,
                null,
                Type.getInternalName( TripleBasedStruct.class ),
                new String[] { Type.getInternalName( Serializable.class ) } );

        cw.visitInnerClass( Type.getInternalName( Map.Entry.class ),
                            Type.getInternalName( Map.class ),
                            "Entry",
                            ACC_PUBLIC + ACC_STATIC + ACC_ABSTRACT + ACC_INTERFACE );


        {
            fv = cw.visitField(0, "object", descrCore, null, null);
            fv.visitEnd();
        }


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

            mv.visitCode();
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitMethodInsn( INVOKESPECIAL,
                                Type.getInternalName( TripleBasedStruct.class ),
                                "<init>",
                                "()V" );
//            mv.visitVarInsn(ALOAD, 0);
//            mv.visitMethodInsn(INVOKESPECIAL, internalWrapper, "initSoftFields", "()V");
            mv.visitInsn( RETURN );
//            mv.visitMaxs( 1, 1 );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();


        }


        {
            mv = cw.visitMethod(ACC_PUBLIC,
                    "<init>",
                    "(" +
                            descrCore +
                            Type.getDescriptor( TripleStore.class ) +
                            Type.getDescriptor( TripleFactory.class ) +
                    ")V",
                    null,
                    null);


            mv.visitCode();
            mv.visitVarInsn( ALOAD, 0 );

            mv.visitMethodInsn( INVOKESPECIAL,
                                Type.getInternalName( TripleBasedStruct.class ),
                                "<init>",
                                "()V" );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitFieldInsn( PUTFIELD, internalWrapper, "object", descrCore );
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 2 );
            mv.visitFieldInsn( PUTFIELD, internalWrapper, "store", Type.getDescriptor( TripleStore.class ) );

            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 3 );
            mv.visitMethodInsn( INVOKEVIRTUAL,
                    Type.getInternalName( TripleBasedStruct.class ),
                    "setTripleFactory",
                    "(" + Type.getDescriptor( TripleFactory.class ) + ")V" );
           

            mv.visitVarInsn( ALOAD, 0 );
            mv.visitVarInsn( ALOAD, 2 );
            mv.visitMethodInsn( INVOKEVIRTUAL,
                                Type.getInternalName( TripleStore.class ),
                                "getId",
                                "()" + Type.getDescriptor( String.class ) );
            mv.visitFieldInsn( PUTFIELD,
                               internalWrapper,
                               "storeId",
                               Type.getDescriptor( String.class ) );

            mv.visitVarInsn( ALOAD, 0 );
            mv.visitMethodInsn( INVOKESPECIAL, internalWrapper, "initSoftFields", "()V" );
            mv.visitInsn( RETURN );
//            mv.visitMaxs( 2, 4 );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();


        }

        buildInitSoftFields( cw, internalWrapper, trait, core, mask );
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