toString refactor in druntime

[Walter Bright via Digitalmars-d]

On 10/30/2014 8:30 AM, Steven Schveighoffer wrote:
> This is a typical mechanism that Tango used -- pass in a ref to a dynamic array
> referencing a stack buffer. If it needed to grow, just update the length, and it
> moves to the heap. In most cases, the stack buffer is enough. But the idea is to
> try and minimize the GC allocations, which are performance killers on the
> current platforms.

We keep solving the same problem over and over. std.internal.scopebuffer does 
this handily. It's what it was designed for - it works, it's fast, and it 
virtually eliminates the need for heap allocations. Best of all, it's an Output 
Range, meaning it fits in with the range design of Phobos.