Article: Increasing the D Compiler Speed by Over 75%

[Vladimir Panteleev]

On Thursday, 25 July 2013 at 21:25:17 UTC, Walter Bright wrote:
> Also, computing the hash is done exactly once, in the lexer. 
> Thereafter, all identifiers are known only by their handles, 
> which are (not coincidentally) the pointer to the identifier, 
> and by its very nature is unique.

Like string interning?