https://d.puremagic.com/issues/show_bug.cgi?id=12303
Summary: Different `TypeInfo`-s for array of classes or
interfaces as associative array key
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Keywords: wrong-code
Severity: normal
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Denis Shelomovskij <[email protected]> 2014-03-06
15:42:56 MSK ---
Compiler passes different `TypeInfo`-s in case associative array key
is array of classes or interfaces. Consider the following example:
---
void main()
{
Object[] a;
typeid(Object[]).getHash(&a); // Calls TypeInfo_Array.getHash
int[Object[]] aa = [a : 0];
assert(a in aa); // Calls TypeInfo_AC.getHash
}
---
This code should work fine:
---
alias T = Object[];
extern(C) inout(void)* _aaInX(inout void*, in TypeInfo keyti, in void* pkey)
{
assert(keyti is typeid(T)); // fails
return null;
}
void main()
{
T a;
int[T] aa = [a : 0];
assert(a !in aa);
}
---
And it works if `T` isn't an array of classes or interfaces.
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