Examples of org.mvel2.asm.MethodVisitor.visitFieldInsn()

org.mvel2.asm.MethodVisitor.visitFieldInsn()
Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object. @param opcode the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. @param owner the internal name of the field's owner class (see {@link Type#getInternalName() getInternalName}). @param name the field's name. @param desc the field's descriptor (see {@link Type Type}).


        {
            MethodVisitor mv = cw.visitMethod( ACC_PUBLIC, "hashCode", "()I", null, null );
            mv.visitCode();
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapper ), "map", Type.getDescriptor( Map.class ) );
            mv.visitMethodInsn( INVOKEVIRTUAL, Type.getInternalName( Object.class ), "hashCode", "()I" );
            mv.visitInsn( IRETURN );
//            mv.visitMaxs( 1, 1 );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();

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        {
            MethodVisitor mv = cw.visitMethod( ACC_PUBLIC, "getInnerMap", "()" + 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( wrapper ), "map", Type.getDescriptor( Map.class ) );
            mv.visitInsn( ARETURN );
//            mv.visitMaxs( 1, 1 );
            mv.visitMaxs( 0, 0 );
            mv.visitEnd();
        }

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            mv = cw.visitMethod( ACC_STATIC, "<clinit>", "()V", null, null );
            mv.visitCode();
            mv.visitLdcInsn( Type.getType( Type.getDescriptor( trait.getDefinedClass() ) ) );
            mv.visitMethodInsn( INVOKEVIRTUAL,
                    Type.getInternalName( Class.class ), "getName", "()" + Type.getDescriptor( String.class ) );
            mv.visitFieldInsn( PUTSTATIC,
                    internalProxy,
                    TraitType.traitNameField,
                    Type.getDescriptor( String.class ) );
            mv.visitInsn( RETURN );
            mv.visitMaxs( 0, 0 );

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        MethodVisitor mv = cw.visitMethod( ACC_PUBLIC, getter, "()"+ BuildUtils.getTypeDescriptor( fieldType ), null, null );
        mv.visitCode();


        mv.visitVarInsn( ALOAD, 0 );
        mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( proxy ), "object", Type.getDescriptor( core.getDefinedClass() ) );
        mv.visitTypeInsn( CHECKCAST, Type.getInternalName( TraitableBean.class ) );
        mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( TraitableBean.class ), "_getFieldTMS", Type.getMethodDescriptor( Type.getType( TraitFieldTMS.class ), new Type[] {} ) );


        mv.visitLdcInsn( field.resolveAlias() );
        if ( BuildUtils.isPrimitive( fieldType ) ) {

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            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();
        }

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        {
            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 );

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                        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 );

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                        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++ );
                }

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            mv.visitCode();
            mv.visitVarInsn( ALOAD, 0 );
            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( Object.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, "map", Type.getDescriptor( Map.class ) );


            mv.visitVarInsn( ALOAD, 1 );

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            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, "map", Type.getDescriptor( Map.class ) );


            mv.visitVarInsn( ALOAD, 1 );
            mv.visitVarInsn( ALOAD, 2 );
            mv.visitMethodInsn( INVOKEVIRTUAL, internalCore, "_setDynamicProperties", "(" + Type.getDescriptor( Map.class ) + ")V" );

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