On 2/24/2020 11:45 AM, Adam D. Ruppe wrote:
On Monday, 24 February 2020 at 19:35:16 UTC, Walter Bright wrote:
Having the compiler lower string interpolation to some hidden template is -
AST macros. We're not doing AST macros.
This is untrue.
Hidden user-defined semantics are not for D.
We are NOT calling for this.
https://digitalmars.com/d/archives/digitalmars/D/DIP_1027--String_Interpolation--Final_Review_Discussion_Thread_335065.html#N335132
> * put the format literal in a wrapper type.
> i"$foo %"
> is translated to the tuple:
> __d_format_literal!("%s %%"), foo
and also you wrote:
> if we can
> all agree to amend it to put in the template thing we can fix
> everything. Even with just the one string arg, we can do a lot
> with it...
and proposed a lowering to:
> i"your hex data is ${%02x}someByte"
>
> (_d_interpolated_string!("your hex data is ",
> _d_interpolated_format_spec("%02x"))(), someByte)
and proposed:
> i"$foo %"
> is translated to the tuple:
> __d_format_literal!("%s %%"), foo
> struct __d_format_literal(string fmt) {
> enum f = fmt;
> alias f this;
> }
