[Issue 4027] Closures in CTFE generate wrong code

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4027


Don <clugdbug at yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
                 CC|                            |clugdbug at yahoo.com.au
            Summary|Nested function's bug in    |Closures in CTFE generate
                   |CTFE                        |wrong code


--- Comment #1 from Don <clugdbug at yahoo.com.au> 2010-03-30 11:42:35 PDT ---
The workaround does NOT work. It only looks as though it does. See this, for
example:
===
string delegate() bug4027(string s1) {
  string s = s1;
  return { return s; };
}

int food() {
 auto a = bug4027("aaa");
 auto b = bug4027("bbb");
 assert(a() == "aaa");  // fails -- a() is "bbb" !!!
 return 1;
}

static assert(food()==1);
----
The root cause is that closures are not yet supported in CTFE. They should
generate an error message at compile time.

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