From: Francis De Brabandere <francisdb@gmail.com> Verify that VBScript's And/Or/Xor/Eqv/Imp/Not operators propagate the oleaut32 VarAnd/VarOr/... results correctly through the interpreter for a few representative Null combinations. --- dlls/vbscript/tests/lang.vbs | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) diff --git a/dlls/vbscript/tests/lang.vbs b/dlls/vbscript/tests/lang.vbs index bec0fd456a5..0788bb6d1fe 100644 --- a/dlls/vbscript/tests/lang.vbs +++ b/dlls/vbscript/tests/lang.vbs @@ -231,10 +231,31 @@ call ok(false imp false, "false does not imp false?") call ok(not (true imp false), "true imp false?") call ok(false imp null, "false imp null is false?") -' For VT_UI1 Imp VT_NULL, native VBScript keeps UI1 width and returns -' the bitwise complement of the left operand, rather than applying -' VarImp's three-valued all-ones rule. interp_imp has a narrow special -' case to match this native behavior. +' Smoke check that VBScript's `And` operator reaches VarAnd correctly and +' propagates the result payload. The full VarAnd+Null conformance table +' lives in dlls/oleaut32/tests/vartest.c. +Call ok((False And Null) = False, "False And Null is not False") +Call ok(isNull(True And Null), "True And Null is not Null") +Call ok(isNull(Null And Null), "Null And Null is not Null") +Call ok((CInt(0) And Null) = 0, "CInt(0) And Null is not 0") +Call ok(getVT(CInt(0) And Null) = "VT_I2", "getVT(CInt(0) And Null) = " & getVT(CInt(0) And Null)) +Call ok(isNull(CInt(5) And Null), "CInt(5) And Null is not Null") + +' Smoke checks that VBScript's sibling logical operators reach Var* +' correctly and propagate the result payload. The full conformance tables +' live in dlls/oleaut32/tests/vartest.c. +Call ok((True Or Null) = True, "True Or Null is not True") +Call ok(isNull(False Or Null), "False Or Null is not Null") +Call ok(isNull(CInt(5) Xor Null), "CInt(5) Xor Null is not Null") +Call ok(isNull(CInt(5) Eqv Null), "CInt(5) Eqv Null is not Null") +Call ok(isNull(CDate(-1) Imp Null), "CDate(-1) Imp Null is not Null") +Call ok((Not CLng(0)) = -1, "Not CLng(0) is not -1") + +' VBScript-specific: for VT_UI1 Imp VT_NULL, native VBScript keeps UI1 +' width and returns the bitwise complement of the left operand, rather +' than applying VarImp's three-valued "all-ones Imp unknown = unknown" +' rule (which returns VT_NULL at the C level for UI1 0xFF). interp_imp +' has a narrow special case to match this native behavior. Call ok((CByte(0) Imp Null) = 255, "CByte(0) Imp Null is not 255") Call ok(getVT(CByte(0) Imp Null) = "VT_UI1", "getVT(CByte(0) Imp Null) = " & getVT(CByte(0) Imp Null)) Call ok((CByte(170) Imp Null) = 85, "CByte(170) Imp Null is not 85") -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/10673