[Issue 3924] New: nothrow ignored in some situations

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3924

           Summary: nothrow ignored in some situations
           Product: D
           Version: 2.041
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: bearophile_hugs at eml.cc


--- Comment #0 from bearophile_hugs at eml.cc 2010-03-10 06:53:26 PST ---
The following programs compile and raise exceptions even if the
functions/delegates are marked as nothrow:

------------------

void main() {
    nothrow void delegate() c = { throw new Exception(""); };
    c();
}

------------------

nothrow auto foo() {
    throw new Exception("");
}
void main() {
    foo();
}

------------------

nothrow auto foo() {
    auto c = { throw new Exception(""); };
    c();
}
void main() {
    foo();
}

---------------------------------


While this code that looks correct doesn't compile:


pure void foo(pure nothrow void delegate(int) callable) {
    callable(5);
}
void main() {
    pure nothrow void bar(int x) {}
    foo(&bar);
}


With the first error:
test1.d(1): basic type expected, not pure

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