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Bug 9575 – __traits(compiles, mixin()) incorrectly returns false

Status: RESOLVED
Resolution: INVALID
Severity: normal
Priority: P2
Component: dmd
Product: D
Version: D2
Platform: All
OS: All
Creation time: 2013-02-22T13:44:00Z
Last change time: 2013-02-22T14:04:03Z
Assigned to: nobody
Creator: callumenator

Comments

Comment #0 by callumenator — 2013-02-22T13:44:47Z

DMD 2.062 void main() { enum test = "auto v = new int;"; pragma(msg, __traits(compiles, mixin(test))); // 'false' mixin(test); // compiles } A workaround is to wrap the test code in braces: enum test = "{auto v = new int;}"; // __traits(compiles) == true

Comment #1 by andrej.mitrovich — 2013-02-22T14:04:03Z

See the traits documentation: http://dlang.org/traits.html#compiles "The arguments cannot be statements or declarations."