On 29/04/2016 15:50, Dicebot wrote:
On 04/29/2016 05:32 PM, Bruno Medeiros wrote:
Imagine you have a module "main.d" with the line `import xxx.foo;`, and
you have a file "foo.d" with the module declaration `module xxx.foo;`.
Now imagine the files are laid out like this:
src/main.d
src/foo.d
Is this valid, should these files compile? Currently DMD will fail if
each file is compiled individually (because it expects `xxx.foo` to be
in "src/xxx/foo.d", *but* it will succeed if all files are supplied to
DMD in the same command-line.
AFAIK yes, this is valid and shall compile (and there are quite some
projects relying on it). There is simply a missing feature for separate
compilation case to allow supplying import module paths manually.
"supplying import module paths manually" ? How would that even work?
Suppose you want to compile main.d separately. You'd need to supply to
the compiler an option for each module with non-standard path, such as
`xxx.foo=foo.d;xxx.bar=bar.d`, etc..
Sounds like a terrible idea. The tool invoking dmd would have to keep a
cache of these mappings. More complexity and for what benefit? That
there are projects relying on it says nothing of whether is a good idea.
The DDT semantic engine does not support this kind of layout. I wonder
if DCD or Mono-D support this (I don't have them handy to try it out).
--
Bruno Medeiros
https://twitter.com/brunodomedeiros
