Many external ASN.1 modules that we have imported over time define types
like this:
Foo ::= SEQUENCE { bar Bar }
Bar ::= SEQUENCE { aMember INTEGER }
and before this change one had to re-order the definitions so that the
one for `Bar` came first. No more.
We can now have out of order definitions in ASN.1 modules and the
compiler will topologically sort output C type declarations so that one
no longer has to manually sort types in ASN.1 modules when importing
them.
Besides that, it is now possible to create circular data types using
OPTIONAL since we generate such fields as pointers (which can then be
pointers to incomplete struct declarations):
Circular ::= SEQUENCE {
name UTF8String,
next Circular OPTIONAL
}
Circular types aren't necessarily useful, but they have been used in the
past. E.g., the rpc.mountd protocol uses a circular type as a linked
list -- it should just have used an array, of course, as that's
semantically equivalent but more space efficient in its encoding, but
the point is that such types exist out there.
237 lines
5.8 KiB
Groff
237 lines
5.8 KiB
Groff
-- $Id$ --
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TEST DEFINITIONS ::=
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BEGIN
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IMPORTS heim_any FROM heim;
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-- Check that we handle out of order definitions.
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-- The compiler should emit the definition of TESTOutOfOrderBar before that of
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-- TESTOutOfOrderFoo.
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TESTOutOfOrderFoo ::= SEQUENCE {
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bar TESTOutOfOrderBar
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}
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TESTOutOfOrderBar ::= SEQUENCE {
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aMember INTEGER
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}
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-- Check that we can handle rpc.mountd style "lists". This is unnecessarily
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-- inefficient in its encoding, and there's no point to using this over
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-- SEQUENCE OF (arrays), but it's neat that we can do this now that we can do
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-- out of order definitions.
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--
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-- This could be useful if we ever extend asn1_compile to also handle XDR,
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-- which we well might since XDR's syntax is a dual of a strict subset of
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-- ASN.1, and since XDR the encoding is fairly straightforward.
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--
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-- Note that the `next' member has to be OPTIONAL or DEFAULTed for this to
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-- work.
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TESTCircular ::= SEQUENCE {
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name UTF8String,
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next TESTCircular OPTIONAL
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}
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TESTuint32 ::= INTEGER (0..4294967295)
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TESTuint64 ::= INTEGER(0..9223372036854775807)
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TESTint64 ::= INTEGER(-9223372036854775808..9223372036854775807)
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TESTLargeTag ::= SEQUENCE {
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foo[127] INTEGER (-2147483648..2147483647),
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bar[128] INTEGER (-2147483648..2147483647)
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}
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TESTSeq ::= SEQUENCE {
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tag0[0] INTEGER (-2147483648..2147483647),
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tag1[1] TESTLargeTag,
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tagless INTEGER (-2147483648..2147483647),
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tag3[2] INTEGER (-2147483648..2147483647)
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}
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TESTChoice1 ::= CHOICE {
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i1[1] INTEGER (-2147483648..2147483647),
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i2[2] INTEGER (-2147483648..2147483647),
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...
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}
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TESTChoice2 ::= CHOICE {
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i1[1] INTEGER (-2147483648..2147483647),
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...
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}
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TESTInteger ::= INTEGER (-2147483648..2147483647)
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TESTInteger2 ::= [4] IMPLICIT TESTInteger
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TESTInteger3 ::= [5] IMPLICIT TESTInteger2
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TESTImplicit ::= SEQUENCE {
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ti1[0] IMPLICIT INTEGER (-2147483648..2147483647),
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ti2[1] IMPLICIT SEQUENCE {
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foo[127] INTEGER (-2147483648..2147483647)
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},
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ti3[2] IMPLICIT [5] IMPLICIT [4] IMPLICIT INTEGER (-2147483648..2147483647)
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}
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TESTImplicit2 ::= SEQUENCE {
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ti1[0] IMPLICIT TESTInteger,
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-- ti2[1] IMPLICIT TESTLargeTag, this is disabled since the IMPLICT encoder does't get the types right when stepping inside an structure --
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ti3[2] IMPLICIT TESTInteger3
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}
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TESTAllocInner ::= SEQUENCE {
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ai[0] TESTInteger
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}
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TESTAlloc ::= SEQUENCE {
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tagless TESTAllocInner OPTIONAL,
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three [1] INTEGER (-2147483648..2147483647),
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tagless2 heim_any OPTIONAL
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}
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TESTOptional ::= SEQUENCE {
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zero [0] INTEGER (-2147483648..2147483647) OPTIONAL,
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one [1] INTEGER (-2147483648..2147483647) OPTIONAL
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}
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TESTCONTAINING ::= OCTET STRING ( CONTAINING INTEGER )
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TESTENCODEDBY ::= OCTET STRING ( ENCODED BY
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{ joint-iso-itu-t(2) asn(1) ber-derived(2) distinguished-encoding(1) }
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)
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TESTDer OBJECT IDENTIFIER ::= {
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joint-iso-itu-t(2) asn(1) ber-derived(2) distinguished-encoding(1)
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}
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TESTCONTAININGENCODEDBY ::= OCTET STRING ( CONTAINING INTEGER ENCODED BY
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{ joint-iso-itu-t(2) asn(1) ber-derived(2) distinguished-encoding(1) }
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)
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TESTCONTAININGENCODEDBY2 ::= OCTET STRING (
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CONTAINING INTEGER ENCODED BY TESTDer
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)
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TESTValue1 INTEGER ::= 1
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TESTUSERCONSTRAINED ::= OCTET STRING (CONSTRAINED BY { -- meh -- })
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-- TESTUSERCONSTRAINED2 ::= OCTET STRING (CONSTRAINED BY { TESTInteger })
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-- TESTUSERCONSTRAINED3 ::= OCTET STRING (CONSTRAINED BY { INTEGER })
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-- TESTUSERCONSTRAINED4 ::= OCTET STRING (CONSTRAINED BY { INTEGER : 1 })
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TESTSeqOf ::= SEQUENCE OF TESTInteger
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TESTSeqSizeOf1 ::= SEQUENCE SIZE (2) OF TESTInteger
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TESTSeqSizeOf2 ::= SEQUENCE SIZE (1..2) OF TESTInteger
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TESTSeqSizeOf3 ::= SEQUENCE SIZE (1..MAX) OF TESTInteger
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TESTSeqSizeOf4 ::= SEQUENCE SIZE (0..2) OF TESTInteger
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TESTOSSize1 ::= OCTET STRING SIZE (1..2)
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TESTSeqOfSeq ::= SEQUENCE OF SEQUENCE {
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zero [0] TESTInteger
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}
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TESTSeqOfSeq2 ::= SEQUENCE OF SEQUENCE {
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string [0] GeneralString
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}
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TESTSeqOfSeq3 ::= SEQUENCE OF SEQUENCE {
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zero [0] TESTInteger,
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string [0] GeneralString
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}
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TESTSeqOf2 ::= SEQUENCE {
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strings SEQUENCE OF GeneralString
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}
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TESTSeqOf3 ::= SEQUENCE {
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strings SEQUENCE OF GeneralString OPTIONAL
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}
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-- Larger/more complex to increase odds of out-of-bounds
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-- read/writes if miscoded
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TESTSeqOf4 ::= SEQUENCE {
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b1 [0] SEQUENCE OF SEQUENCE {
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s1 OCTET STRING,
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s2 OCTET STRING,
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u1 TESTuint64,
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u2 TESTuint64
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} OPTIONAL,
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b2 [1] IMPLICIT SEQUENCE OF SEQUENCE {
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u1 TESTuint64,
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u2 TESTuint64,
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u3 TESTuint64,
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s1 OCTET STRING,
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s2 OCTET STRING,
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s3 OCTET STRING
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} OPTIONAL,
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b3 [2] IMPLICIT SEQUENCE OF SEQUENCE {
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s1 OCTET STRING,
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u1 TESTuint64,
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s2 OCTET STRING,
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u2 TESTuint64,
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s3 OCTET STRING,
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u3 TESTuint64,
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s4 OCTET STRING,
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u4 TESTuint64
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} OPTIONAL
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}
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TESTSeqOf5 ::= SEQUENCE {
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outer SEQUENCE {
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inner SEQUENCE {
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u0 TESTuint64,
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s0 OCTET STRING,
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u1 TESTuint64,
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s1 OCTET STRING,
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u2 TESTuint64,
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s2 OCTET STRING,
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u3 TESTuint64,
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s3 OCTET STRING,
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u4 TESTuint64,
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s4 OCTET STRING,
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u5 TESTuint64,
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s5 OCTET STRING,
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u6 TESTuint64,
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s6 OCTET STRING,
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u7 TESTuint64,
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s7 OCTET STRING
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}
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}
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OPTIONAL
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}
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TESTPreserve ::= SEQUENCE {
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zero [0] TESTInteger,
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one [1] TESTInteger
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}
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TESTBitString ::= BIT STRING {
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zero(0),
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eight(8),
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thirtyone(31)
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}
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TESTBitString64 ::= BIT STRING {
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zero(0),
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eight(8),
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thirtyone(31),
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thirtytwo(32),
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sixtythree(63)
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}
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TESTLargeBitString ::= BIT STRING {
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zero(0),
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eight(8),
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thirtyone(31),
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onehundredtwenty(120)
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}
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TESTMechType::= OBJECT IDENTIFIER
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TESTMechTypeList ::= SEQUENCE OF TESTMechType
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END
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