On Thursday, 6 February 2014 at 18:52:21 UTC, fra wrote:
Hey, wait a second. How do you throw without allocating?
Throw pre-allocated thread-local exception. And make a deep copy for it if it is going to be put into exception chain to avoid modifying one already in chain.
I have been told in that PR that some of language features assume exception instances are always unique and rely on it. It sounds like major language design flaw that will block usage of Phobos in memory-caring code even if other issues are taken care of. Probably language spec should be relaxed to fix this.
