[Issue 8977] New: Ability to break typesystem with static struct initializer (e.g. modify immutable)

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8977

           Summary: Ability to break typesystem with static struct
                    initializer (e.g. modify immutable)
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: accepts-invalid
          Severity: critical
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: verylonglogin.reg at gmail.com


--- Comment #0 from Denis Shelomovskij <verylonglogin.reg at gmail.com> 2012-11-08 16:07:36 MSK ---
The problem is `S s = <qualifier> S(<args>);` always allowed even if
`<qualifier> S` isn't implicitly convertible to `S`:
---
struct S
{ int* p; }

void main()
{
    immutable int* p;
    S s = immutable S(p);
    assert(s.p is p);
    *s.p = 1;
}
---

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