strange behaviour in [array] Calling Address method

Question

I've tested this on Win XP and Windows Server 2008 R2 in Powershell 2.0:

$a = 1,2,3,4 # a simple [object[]] but any other Type is good

if I do:

$a.addres()

the return error is (correctly):

Method invocation failed because [System.Object[]] doesn't contain a method named 'addres'.

But if I do:

$a.address()

the error is:

Cannot find an overload for "Address" and the argument count: "0".

But doing:

$a.address(2)

close powershell console with an 'Problem Event Name: APPCRASH'

starting from that [system.array] has not a method called address how powershell try to call an existing method?

Interesting. On V3 I get this error `PS> $a.address(2) Exception calling "Address" with "1" argument(s): "Operation could destabilize the runtime."` — Keith Hill, Apr 06 '12 at 15:19

score 3 · Accepted Answer · edited May 23 '17 at 11:44

3

[System.Array] has .Get, .Set and .Address methods that are available via the .Net runtime but are not normally used in Powershell code. Have a look at this StackOverflow article:

edited May 23 '17 at 11:44

Community

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answered Apr 06 '12 at 15:20

Darin Strait

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2
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THank you! I didn't found this SO answer! Now all is more clear. – CB. Apr 06 '12 at 18:49

score 1 · Answer 2 · answered Apr 06 '12 at 17:11

I submitted this as a bug a while back. They fixed it in V3 with the exception message Keith posted ( could destabilize the runtime )

https://connect.microsoft.com/PowerShell/feedback/details/561865/powershell-crashes-when-calling-address-method-on-object-array

strange behaviour in [array] Calling Address method

2 Answers2