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test suite for bitwise operators

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brief NEWS blurb
allow for "counter" operands (does anyone still use these?) for one (but not both) of the bitwise operands
This commit is contained in:
Vern Paxson 2018-04-26 13:25:04 -07:00
parent 1658931af1
commit 58ffd61dcc
4 changed files with 33 additions and 4 deletions
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4
NEWS
View file

@ -146,6 +146,10 @@ New Functionality
- Added new SMB events: smb1_transaction_secondary_request,
smb1_transaction2_secondary_request, smb1_transaction_response
- Added support for bitwise operations on "count" values. '&', '|' and
'^' are binary "and", "or" and "xor" operators, and '~' is a unary
ones-complement operator.
Changed Functionality
---------------------

11
src/Expr.cc
View file

@ -1874,12 +1874,15 @@ BitExpr::BitExpr(BroExprTag arg_tag, Expr* arg_op1, Expr* arg_op2)
if ( IsVector(bt2) )
bt2 = op2->Type()->AsVectorType()->YieldType()->Tag();
if ( bt1 == TYPE_COUNT && bt2 == bt1 )
if ( (bt1 == TYPE_COUNT || bt1 == TYPE_COUNTER) &&
(bt2 == TYPE_COUNT || bt2 == TYPE_COUNTER) )
{
if ( is_vector(op1) || is_vector(op2) )
SetType(new VectorType(base_type(bt1)));
if ( bt1 == TYPE_COUNTER && bt2 == TYPE_COUNTER )
ExprError("cannot apply a bitwise operator to two \"counter\" operands");
else if ( is_vector(op1) || is_vector(op2) )
SetType(new VectorType(base_type(TYPE_COUNT)));
else
SetType(base_type(bt1));
SetType(base_type(TYPE_COUNT));
}
else

11
testing/btest/Baseline/language.count/out
View file

@ -14,5 +14,16 @@ modulus operator (PASS)
division operator (PASS)
assignment operator (PASS)
assignment operator (PASS)
bitwise and (PASS)
bitwise and (PASS)
bitwise and (PASS)
bitwise or (PASS)
bitwise or (PASS)
bitwise or (PASS)
bitwise xor (PASS)
bitwise xor (PASS)
bitwise xor (PASS)
bitwise complement (PASS)
bitwise complement (PASS)
max count value = 18446744073709551615 (PASS)
max count value = 18446744073709551615 (PASS)

11
testing/btest/language/count.bro
View file

@ -47,6 +47,17 @@ event bro_init()
test_case( "assignment operator", c2 == 8 );
c2 -= 2;
test_case( "assignment operator", c2 == 6 );
test_case( "bitwise and", c2 & 0x4 == 0x4 );
test_case( "bitwise and", c4 & 0x4 == 0x4 );
test_case( "bitwise and", c8 & 0x4 == 0x0 );
test_case( "bitwise or", c2 | 0x4 == c2 );
test_case( "bitwise or", c4 | 0x4 == c4 );
test_case( "bitwise or", c8 | 0x4 == c7 );
test_case( "bitwise xor", c7 ^ 0x4 == c8 );
test_case( "bitwise xor", c4 ^ 0x4 == 251 );
test_case( "bitwise xor", c8 ^ 0x4 == c7 );
test_case( "bitwise complement", ~c6 == 0 );
test_case( "bitwise complement", ~~c4 == c4 );
# Max. value tests