[Issue 14439] aa's keys, values, byKey, byValue not usable in @safe context

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14439

Brad Roberts <braddr at puremagic.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|aa's are essentially        |aa's keys, values, byKey,
                   |unusable in @safe contexts  |byValue not usable in @safe
                   |                            |context

--- Comment #1 from Brad Roberts <braddr at puremagic.com> ---
module safeaa;

void main() @safe
{
    string[string] saa = [ "a" : "1", "b" : "2" ];

    string s = saa["a"];

    saa["c"] = "3";

    if ("c" in saa) {}

    size_t l = saa.length;

    foreach(k; saa.keys) {}

    foreach(k; saa.byKey) {}

    foreach(v; saa.values) {}

    foreach(v; saa.byValue) {}

}

safeaa.d(15): Error: safe function 'D main' cannot call system function
'object.keys!(string[string], string, string).keys'
safeaa.d(17): Error: safe function 'D main' cannot call system function
'object.byKey!(string[string], string, string).byKey'
safeaa.d(17): Error: safe function 'D main' cannot call system function
'object.byKey!(string[string], string, string).byKey.Result.empty'
safeaa.d(17): Error: safe function 'D main' cannot call system function
'object.byKey!(string[string], string, string).byKey.Result.popFront'
safeaa.d(17): Error: safe function 'D main' cannot call system function
'object.byKey!(string[string], string, string).byKey.Result.front'
safeaa.d(19): Error: safe function 'D main' cannot call system function
'object.values!(string[string], string, string).values'
safeaa.d(21): Error: safe function 'D main' cannot call system function
'object.byValue!(string[string], string, string).byValue'
safeaa.d(21): Error: safe function 'D main' cannot call system function
'object.byValue!(string[string], string, string).byValue.Result.empty'
safeaa.d(21): Error: safe function 'D main' cannot call system function
'object.byValue!(string[string], string, string).byValue.Result.popFront'
safeaa.d(21): Error: safe function 'D main' cannot call system function
'object.byValue!(string[string], string, string).byValue.Result.front'

I'm not sure why saa.length builds since _aaLen isn't marked @safe.  Probably
the compiler making assumptions that the code doesn't declare.

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