On Wednesday, 20 January 2021 at 19:01:19 UTC, frame wrote:
On Wednesday, 20 January 2021 at 13:11:09 UTC, Paul Backus
Please post an example with enough code to actually produce
the error you're seeing.
I don't know when to stop posting code then :(
You should stop (and ideally start) with a Minimal, Complete,
Verifiable Example:
https://idownvotedbecau.se/nomcve/
Just to illustrate why this matters, let me walk you through the
steps it takes me to try and figure out what your issue is from
just the posts you've made so far.
---
Step 1: go through each of your posts and copy each of the
individual code snippets into a run.dlang.io window.
Result: https://run.dlang.io/is/nidfug
This code compiles--because it's all templates, and you haven't
actually provided any example of the code that *uses* these
templates.
---
Step 2: look at the comments and try to guess what the usage code
must look like.
Result: https://run.dlang.io/is/P7Pcr1
First, we need to define a class with a member named `data` to
pass as an argument to something. And data's type has to be
`foo!bar`, so we need a type named `bar` to use for that.
What kind of type? Well, if we look at how `bar` is used in
`foo`, we can see that it's compared with `null`, so we know it's
a reference type--probably a class.
Now we can finally attempt to instantiate `something`. What
happens when we do?
Error: template instance loadAllMatched!TDobj template
loadAllMatched is not defined
Great, another piece of missing code.
---
Step 3: try to stub out loadAllMatched.
Result: https://run.dlang.io/is/uRj6HW
Error: template instance `isCallable!S` template `isCallable`
is not defined
Siiiiigh.
---
Step 4: add the missing import.
Result: https://run.dlang.io/is/2by7sU
Oh, look, it compiles with no errors. All that effort, and I
*still* couldn't reproduce the issue you described in your
original post. Guess I wasted my time for nothing!