Examples of org.mvel2.optimizers.AbstractOptimizer

org.mvel2.asm.Label
@author Christopher Brock

        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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        String actualType = BuildUtils.isPrimitive( type ) ? BuildUtils.box( type ) : type;


        mv.visitVarInsn( ASTORE, 1 );
        mv.visitVarInsn( ALOAD, 1 );
        Label l0 = new Label();
        mv.visitJumpInsn( IFNULL, l0 );
        mv.visitVarInsn( ALOAD, 1 );
        mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( Triple.class ), "getValue", "()" + Type.getDescriptor( Object.class ) );
        mv.visitVarInsn( ASTORE, 2 );
        mv.visitVarInsn( ALOAD, 2 );
        mv.visitTypeInsn( INSTANCEOF, BuildUtils.getInternalType( actualType ) );
        Label l1 = new Label();
        mv.visitJumpInsn( IFEQ, l1 );
        mv.visitVarInsn( ALOAD, 2 );
        mv.visitTypeInsn( CHECKCAST, BuildUtils.getInternalType( actualType ) );


        if ( BuildUtils.isPrimitive( type ) ) {

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        mv = cw.visitMethod( ACC_PUBLIC, "equals", "(" + Type.getDescriptor( Object.class ) + ")Z", null, null );
        mv.visitCode();


        mv.visitVarInsn( ALOAD, 0 );
        mv.visitVarInsn( ALOAD, 1 );
        Label l0 = new Label();
        mv.visitJumpInsn( IF_ACMPNE, l0 );
        mv.visitInsn( ICONST_1 );
        mv.visitInsn( IRETURN );


        mv.visitLabel( l0 );
        mv.visitVarInsn( ALOAD, 1 );
        Label l1 = new Label();
        mv.visitJumpInsn( IFNULL, l1 );
        mv.visitVarInsn( ALOAD, 0 );
        mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( Object.class ), "getClass", "()" + Type.getDescriptor( Class.class ) );
        mv.visitVarInsn( ALOAD, 1 );
        mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( Object.class ), "getClass", "()" + Type.getDescriptor( Class.class ) );
        Label l2 = new Label();
        mv.visitJumpInsn( IF_ACMPEQ, l2 );
        mv.visitLabel( l1 );
        mv.visitInsn( ICONST_0 );
        mv.visitInsn( IRETURN );
        mv.visitLabel( l2 );




        mv.visitVarInsn( ALOAD, 1 );
        mv.visitTypeInsn( CHECKCAST, proxyType );
        mv.visitVarInsn( ASTORE, 2 );


        int x = 2;


        int count = 0;


        for ( FieldDefinition field : classDef.getFieldsDefinitions() ) {
            if ( field.isKey() ) {
                count++;




                if ( ! BuildUtils.isPrimitive( field.getTypeName() ) ) {


                    mv.visitVarInsn( ALOAD, 0 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    Label l11 = new Label();
                    mv.visitJumpInsn( IFNULL, l11 );
                    mv.visitVarInsn( ALOAD, 0 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitVarInsn( ALOAD, 2 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( field.getTypeName() ), "equals", 
                                        "(" + Type.getDescriptor( Object.class ) + ")Z" );
                    Label l12 = new Label();
                    mv.visitJumpInsn( IFNE, l12 );
                    Label l13 = new Label();
                    mv.visitJumpInsn( GOTO, l13 );
                    mv.visitLabel( l11 );
                    mv.visitVarInsn( ALOAD, 2 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitJumpInsn( IFNULL, l12 );
                    mv.visitLabel( l13 );
                    mv.visitInsn( ICONST_0 );
                    mv.visitInsn( IRETURN );
                    mv.visitLabel( l12 );


                } else if ( "double".equals( field.getTypeName() ) ) {


                    mv.visitVarInsn( ALOAD, 2 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitVarInsn( ALOAD, 0 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitMethodInsn( INVOKESTATIC, Type.getInternalName( Double.class ), "compare", "(DD)I" );
                    Label l5 = new Label();
                    mv.visitJumpInsn( IFEQ, l5 );
                    mv.visitInsn( ICONST_0 );
                    mv.visitInsn( IRETURN );
                    mv.visitLabel( l5 );


                    x = Math.max( x, 4 );


                } else if ( "float".equals( field.getTypeName() ) ) {


                    mv.visitVarInsn( ALOAD, 2 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitVarInsn( ALOAD, 0 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitMethodInsn( INVOKESTATIC, Type.getInternalName( Float.class ), "compare", "(FF)I" );
                    Label l6 = new Label();
                    mv.visitJumpInsn( IFEQ, l6 );
                    mv.visitInsn( ICONST_0 );
                    mv.visitInsn( IRETURN );
                    mv.visitLabel( l6 );




                }  else if ( "long".equals( field.getTypeName() ) ) {


                    mv.visitVarInsn( ALOAD, 0 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitVarInsn( ALOAD, 2 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitInsn( LCMP );
                    Label l8 = new Label();
                    mv.visitJumpInsn( IFEQ, l8 );
                    mv.visitInsn( ICONST_0 );
                    mv.visitInsn( IRETURN );
                    mv.visitLabel( l8 );


                    x = Math.max( x, 4 );


                } else {


                    mv.visitVarInsn( ALOAD, 0 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    mv.visitVarInsn( ALOAD, 2 );
                    mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                        "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                    Label l4 = new Label();
                    mv.visitJumpInsn( IF_ICMPEQ, l4 );
                    mv.visitInsn( ICONST_0 );
                    mv.visitInsn( IRETURN );
                    mv.visitLabel( l4 );

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                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        Label l8 = new Label();
                        mv.visitJumpInsn( IFNULL, l8 );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        mv.visitMethodInsn( INVOKEVIRTUAL, BuildUtils.getInternalType( field.getTypeName() ), "hashCode", "()I" );
                        Label l9 = new Label();
                        mv.visitJumpInsn( GOTO, l9 );
                        mv.visitLabel( l8 );
                        mv.visitInsn( ICONST_0 );
                        mv.visitLabel( l9 );
                        mv.visitInsn( IADD );
                        mv.visitVarInsn( ISTORE, 1 );


                    } else if ( "double".equals( field.getTypeName() ) ) {


                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        mv.visitInsn( DCONST_0 );
                        mv.visitInsn( DCMPL );
                        Label l2 = new Label();
                        mv.visitJumpInsn( IFEQ, l2 );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        mv.visitMethodInsn( INVOKESTATIC, Type.getInternalName( Double.class ), "doubleToLongBits", "(D)J" );
                        Label l3 = new Label();
                        mv.visitJumpInsn( GOTO, l3 );
                        mv.visitLabel( l2 );
                        mv.visitInsn( LCONST_0 );
                        mv.visitLabel( l3 );
                        mv.visitVarInsn( LSTORE, 2 );
                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( LLOAD, 2 );
                        mv.visitVarInsn( LLOAD, 2 );
                        mv.visitIntInsn( BIPUSH, 32 );
                        mv.visitInsn( LUSHR );
                        mv.visitInsn( LXOR );
                        mv.visitInsn( L2I );
                        mv.visitInsn( IADD);
                        mv.visitVarInsn( ISTORE, 1 );


                        x = Math.max( 6, x );
                        y = Math.max( 4, y );


                    } else if ( "boolean".equals( field.getTypeName() ) ) {


                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        Label l4 = new Label();
                        mv.visitJumpInsn( IFEQ, l4 );
                        mv.visitInsn( ICONST_1 );
                        Label l5 = new Label();
                        mv.visitJumpInsn( GOTO, l5 );
                        mv.visitLabel( l4 );
                        mv.visitInsn( ICONST_0 );
                        mv.visitLabel( l5 );
                        mv.visitInsn( IADD );
                        mv.visitVarInsn( ISTORE, 1 );


                    } else if ( "float".equals( field.getTypeName() ) ) {


                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        mv.visitInsn( FCONST_0 );
                        mv.visitInsn( FCMPL );
                        Label l6 = new Label();
                        mv.visitJumpInsn( IFEQ, l6 );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );
                        mv.visitMethodInsn( INVOKESTATIC, Type.getInternalName( Float.class ), "floatToIntBits", "(F)I" );
                        Label l7 = new Label();
                        mv.visitJumpInsn( GOTO, l7 );
                        mv.visitLabel( l6 );
                        mv.visitInsn( ICONST_0 );
                        mv.visitLabel( l7 );
                        mv.visitInsn( IADD );

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