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

org.mvel2.asm.MethodVisitor.visitTypeInsn()
Visits a type instruction. A type instruction is an instruction that takes the internal name of a class as parameter. @param opcode the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF. @param type the operand of the instruction to be visited. This operand must be the internal name of an object or array class (see {@link Type#getInternalName() getInternalName}).


            // final <classname> other = (<classname>) obj;
            mv.visitLabel( l3 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             1 );
            mv.visitTypeInsn( Opcodes.CHECKCAST,
                              getInternalType( classDef.getClassName() ) );
            mv.visitVarInsn( Opcodes.ASTORE,
                             2 );


            // for each key field

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        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 ),

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            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 );

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            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,

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            // final <classname> other = (<classname>) obj;
            mv.visitLabel( l3 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             1 );
            mv.visitTypeInsn( Opcodes.CHECKCAST,
                              getInternalType( classDef.getClassName() ) );
            mv.visitVarInsn( Opcodes.ASTORE,
                             2 );


            // for each key field

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                l0 = new Label();
                mv.visitLabel( l0 );
            }


            // StringBuffer buf = new StringBuffer();
            mv.visitTypeInsn( Opcodes.NEW,
                              Type.getInternalName( StringBuffer.class ) );
            mv.visitInsn( Opcodes.DUP );
            mv.visitMethodInsn( Opcodes.INVOKESPECIAL,
                                Type.getInternalName( StringBuffer.class ),
                                "<init>",

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                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" );

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                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 );

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        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 );

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                        "(" + 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 );

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