ENUM

Declare an enumeration

WSupported on Windows

USupported on Unix

VSupported on OpenVMS

NSupported in Synergy .NET

[access] ENUM name
  member_def [, value]
  .
  .
  .
ENDENUM

Arguments

access

(optional) One of the following access modifiers:

PUBLIC

Access is not restricted. This is the most accessible option. (default for Synergy .NET)

PROTECTED

Access is limited to the containing class or types derived from the containing class. (traditional Synergy only)

PRIVATE

Access is limited to the containing type. This is the least accessible option. (default) (traditional Synergy only)

INTERNAL

Access is limited to the current assembly. (Synergy .NET only)

name

The name of the enumeration to define.

member_def

The name of the member. You can specify as many member definitions as you want, although you must specify at least one.

value

(optional) The value of the member.

Discussion

The ENUM statement enables you to declare one or more enumerations globally or within a class or namespace. You can declare one or more enumeration values within an enumeration by declaring a unique identifier for each value. If the identifier is not unique within the enumeration, a “Symbol already uniquely defined” error (TOKUDF) is generated.

If the starting enumeration value does not have an explicit integer value, the compiler assumes the integer value to be 0. For any subsequent field without an explicit integer value, the compiler assumes its integer value to be one more than the previous enumeration value’s integer value.

For example:

enum myenum
    f0          ;Assumed to be 0
    f1          ;Assumed to be 1
    f2          ,7
    f3          ;Assumed to be 8
    f4          ;Assumed to be 9
    f5          ,3
    f6          ;Assumed to be 4
endenum

Specifying duplicate integer values within an enumeration is valid. For example, the following is allowed:

enum SystemState
    off         ,0
    down        ,0

If an enumeration inside a namespace or class hides a global enumeration, a level 4 “Enum_name enumeration hides global enumeration of same name” warning is generated, where enum_name is the name of the enumeration.

If member_def is one of the following reserved keywords, a comma is required after member_def whether value is specified or not: end, endclass, endenum, endexternal, endfunc, endfunction, endglobal, endliteral, endmain, endname, endnamespace, endparams, endrecord, endsub, endsubroutine, global, main, proc, start, record, common, literal. For example:

enum myenum
    value1      ,10
    main        ,
    start       ,10
    record      ,
endenum

See also

enumeration data type

Examples

import System.Collections
enum SearchMode
        All, 1
        Selected, 2
endenum

main EnumTest
        record 
                Results, @ArrayList
        endrecord
proc
        SearchForSomething(SearchMode.All,,Results)
        stop
endmain
1

2


subroutine SearchForSomething
        required in SearchType          ,SearchMode
        optional in Filter              ,a
        required out Results            ,@ArrayList
        endparams
proc
        using SearchType select
        (SearchMode.All),
                . ;Code to return ALL in Results goes here
                .
                .
                nop
        (SearchMode.Selected),
                . ;Code to return SELECTED in Results goes here
                .
                .
                nop
        endusing
        xreturn
endsubroutine