On Monday, 18 July 2016 at 17:35:29 UTC, Stefan Koch wrote:
>
> I did it for function templates just now.
> It will the instantiated bodys to std-out.

Okay here is the frist really hacky draft patch

In dtemplate.d line 6691 right at the end of semantic3 insert the following code :

        if (auto a = toAlias2) {
            scope hgs = HdrGenState();
            scope ob = OutBuffer();
            scope ppv = new PrettyPrintVisitor(&ob, &hgs);

            if (auto fd = a.isFuncDeclaration()) {
                printf("FunctionTemplate: %s\n{", toChars);
                if (auto fb = fd.fbody)
                    fb.accept(ppv);
            }

            printf("%.*s\n}\n", ob.size, cast(char*)ob.data);

        }
    }

Without warranty of any kind of course :)

On Sunday, 17 July 2016 at 05:57:52 UTC, WhatMeWorry wrote:
>
>
> I don't suppose there's a way to "see" source code generated by templates after a compile but before execution?  Or does the compiler generate it to a lower level on the fly; thus losing the source code?
>
> I'm assuming no because if there were a way, I'd of come across it by now :)
>
>


I've just stumbled across this on dmd documentation. Haven't had time to play with it yet.

-allinst

generate code for all template instantiations

On Tuesday, 19 July 2016 at 20:19:53 UTC, WhatMeWorry wrote:
> On Sunday, 17 July 2016 at 05:57:52 UTC, WhatMeWorry wrote:
>>
>>
>> I don't suppose there's a way to "see" source code generated by templates after a compile but before execution?  Or does the compiler generate it to a lower level on the fly; thus losing the source code?
>>
>> I'm assuming no because if there were a way, I'd of come across it by now :)
>>
>>
>
>
> I've just stumbled across this on dmd documentation. Haven't had time to play with it yet.
>
> -allinst
>
> generate code for all template instantiations

This is not what you are looking for. This option makes dmd put seemingly unused code in the binary. It does not output human-readable template instantations. It was meant to help workaround linking errors at the time when the lazy template instantiation mechanism was not so robust as nowadays.