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

org.mvel2.asm.MethodVisitor.visitLabel()
Visits a label. A label designates the instruction that will be visited just after it. @param label a {@link Label Label} object.

            mv.visitTypeInsn( NEW, Type.getInternalName( ExternalizableLinkedHashMap.class ) );
            mv.visitInsn( DUP );
            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( ExternalizableLinkedHashMap.class ), "<init>", "()V" );
            mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TraitTypeMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
            mv.visitMethodInsn( INVOKEVIRTUAL, internalCore, "_setTraitMap", "(" + Type.getDescriptor( Map.class ) + ")V" );
            mv.visitLabel( l2 );


            // core._setBottomTypeCode()
            mv.visitVarInsn( ALOAD, 1 );
            mv.visitVarInsn( ALOAD, 4 );
            mv.visitMethodInsn( INVOKEVIRTUAL, internalCore, "_setBottomTypeCode", Type.getMethodDescriptor( Type.VOID_TYPE, new Type[] { Type.getType( BitSet.class ) } ) );

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                TraitFactory.invokeExtractor( mv, wrapperName, trait, core, field );
                Label l1 = new Label();
                mv.visitJumpInsn( IFNONNULL, l1 );
                mv.visitInsn( ICONST_1 );
                mv.visitInsn( IRETURN );
                mv.visitLabel( l1 );
            }
        }


        mv.visitVarInsn( ALOAD, 0 );
        mv.visitFieldInsn( GETFIELD, internalWrapper, "map", Type.getDescriptor( Map.class ) );

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        mv.visitVarInsn( ALOAD, 0 );
        mv.visitFieldInsn( GETFIELD, internalWrapper, "map", Type.getDescriptor( Map.class ) );
        mv.visitInsn( ACONST_NULL );
        mv.visitMethodInsn( INVOKEINTERFACE, Type.getInternalName( Map.class ), "containsValue", "(" + Type.getDescriptor( Object.class ) + ")Z" );
        mv.visitInsn( IRETURN );
        mv.visitLabel( l99 );


        // non-null values check
        for ( FieldDefinition field : core.getFieldsDefinitions() )   {


            mv.visitVarInsn( ALOAD, 1 );

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            Label l0 = new Label();
            mv.visitJumpInsn( IFEQ, l0 );
            mv.visitInsn( ICONST_1 );
            mv.visitInsn( IRETURN );
            mv.visitLabel( l0 );


        }


        mv.visitVarInsn( ALOAD, 0 );
        mv.visitFieldInsn( GETFIELD, internalWrapper, "map", Type.getDescriptor( Map.class ) );

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                                   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,

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                                                           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,

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                                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 + ";",

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                                                          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,

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                                                 null );


        mv.visitCode();


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

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                                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,

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