Get Function Body

[bauss via Digitalmars-d-learn]

On Friday, 30 June 2017 at 16:43:33 UTC, Stefan Koch wrote:
> On Friday, 30 June 2017 at 16:38:45 UTC, bauss wrote:
>> Is there a way to retrieve the body of a function as a string?
>>
>> Scenario.
>>
>> I want to pass a function to a mixin template and just mixin 
>> the body of the function.
>>
>> Ex.
>>
>> mixin template Foo(alias fun) {
>>     void bar() {
>>         mixin(getBodyOfFun(fun));
>>     }
>> }
>>
>> I'm aware that I can pass a string like mixin Foo!"a > b" but 
>> I would really like to avoid that.
>>
>> I also can't just call "fun" as normal, unless it can be 
>> forced to be inline within the mixin template. The reason is 
>> if I mixin two mixin templates with the same function passed 
>> it must exist as two different function bodies executed, even 
>> tho they do the same.
>>
>> Which means the following must have two "different" baz and 
>> not the actual baz.
>>
>> void baz() { ... }
>>
>> mixin Foo!baz;
>> mixin Foo!baz;
>>
>> I don't know if it'll be possible without some sort of 
>> "parsing" the function or even without "string function 
>> bodies".
>
> You need to function body as a string.
> There is no way of retriving a functionBodyString from the 
> compiler.
> And I suspect it would be a bad idea to be able to do so.
> Since the compiler may mutate the body while 
> processing/optimizing.

Well in my case I don't want optimization or anything like that, 
in fact the original function wouldn't matter at all. I guess 
I'll go with the string way then though.

I'm aware this is probably not a scenario day-to-day code will 
need, but in my case I need to make my program as obscure as 
possible.