1 (* Test whether the keyword XXXX may be used as an identifier for:

     2  * Program identifier

     3  *

     4  * The XXXX names in the following code are merely a placeholder.

     5  * They will be replaced by several identifiers before actual testing

     6  * of the compiler.

     7  *)

     8 

     9 (* The identifiers that will replace the XXXX

    10  * must be placed on a line starting with #

    11  * All identifiers preceded by # are ignored!

    12  * The identifier list must be placed inside an IEC 61131-3 comment.

    13  *)

    14 (* This file is specific for identifiers identical to IL operators.

    15  *  See the note following the identifier list

    16  *)

    17 (*

    18 #IL_operators ANDN CAL CALC CALCN CD CLK CU IN JMP JMPC JMPCN LD LDN ORN PT PV R R1 RET RETC RETCN S S1 ST STN XORN

    19 #SFC_qualifiers D DS L N P #R #S SD SL

    20      NOTE: R and S are identical to IL operators!!

    21 #Task_initialisers PRIORITY SINGLE INTERVAL

    22 *)

    23 

    24 (* NOTE: The identifier as a variable test has some special cases.

    25  *       Namely, when using IL operators as variable names.

    26  *       Even though the syntax of the IL language would not result

    27  *       in ambiguities in the above case, our parser does not currently

    28  *       allow the use of variables (with names identical to IL

    29  *       operators) within IL code.

    30  *

    31  *       The following test code must therefore consider two possibilities:

    32  *        - if the identifier under test is an IL operator

    33  *        - if the identifier under test is not an IL operator

    34  *)

    35 

    36 

    37 

    38 

    39 

    40 

    41 PROGRAM XXXX

    42 VAR_INPUT

    43   a_1 : BOOL;

    44 END_VAR

    45   LD a_1

    46 END_PROGRAM

    47 

    48 

    49 

    50 

    51 

    52 CONFIGURATION config1

    53  TASK fast(PRIORITY := 4);

    54  PROGRAM P1 WITH fast:

    55        XXXX(a_1 := TRUE);

    56 END_CONFIGURATION

    57 

    58 

    59 

    60 

    61 (* Checking whether the use of XXXX will confuse any other

    62  * normal and correct IL or ST code.

    63  *)

    64 {#include "basic_code.test" }

    65 

    66