Hello! I care for project DCD. I've wanted to fix some issue in it very long time ago. But when I get a little bit of free time I encounter one big problem for me.

I can't debug it using GDB. I can't go through call stack because I get a number of issues. Long story short I've decided to solve them one by one and I really need community's help.

First of them. I can't make `step into` staying on this code line https://github.com/ANtlord/DCD/blob/master/src/server/autocomplete.d#L341.
What I do:

1. I compile DCD project using dub with dmd `dub build --compiler=dmd --build=debug --config=server --parallel`
2. I run `gdb <path/to/dcd-server>`. I do it from project root directory always `gdb dcd-server`.
3. Inside gdb. I do `break autocomplete.d:341`
4. Inside gdb. I do `run -p 6767` where `-p 6767` is DCD parameter.
5. I launch dcd-client with parameters for calling desirable code `dcd-client  --port 6767 myfile.d -c 53`. File `myfile.d` consists of `void main(string[] args) { int[] asd = [4,2]; asd[0]. }`. Yes, it has one line.
6. Inside gdb. I stay on desirable line and I do `step`.
7. Inside gdb. I am ended up in `/usr/include/dlang/dmd/std/typecons.d:6097` instead function `generateAutocompleteTrees` called on the line.

I attach this screenshot to be clear https://www.dropbox.com/s/6i2hmbvqwdvopur/Screenshot_20170220_214526.png?dl=0

Thanks.

On Monday, 20 February 2017 at 13:55:57 UTC, ANtlord wrote:
> Hello! I care for project DCD. I've wanted to fix some issue in it very long time ago. But when I get a little bit of free time I encounter one big problem for me.
>
> I can't debug it using GDB. I can't go through call stack because I get a number of issues. Long story short I've decided to solve them one by one and I really need community's help.
>
> First of them. I can't make `step into` staying on this code line https://github.com/ANtlord/DCD/blob/master/src/server/autocomplete.d#L341.
> What I do:
>
> 1. I compile DCD project using dub with dmd `dub build --compiler=dmd --build=debug --config=server --parallel`
> 2. I run `gdb <path/to/dcd-server>`. I do it from project root directory always `gdb dcd-server`.
> 3. Inside gdb. I do `break autocomplete.d:341`
> 4. Inside gdb. I do `run -p 6767` where `-p 6767` is DCD parameter.
> 5. I launch dcd-client with parameters for calling desirable code `dcd-client  --port 6767 myfile.d -c 53`. File `myfile.d` consists of `void main(string[] args) { int[] asd = [4,2]; asd[0]. }`. Yes, it has one line.
> 6. Inside gdb. I stay on desirable line and I do `step`.
> 7. Inside gdb. I am ended up in `/usr/include/dlang/dmd/std/typecons.d:6097` instead function `generateAutocompleteTrees` called on the line.
>
> I attach this screenshot to be clear https://www.dropbox.com/s/6i2hmbvqwdvopur/Screenshot_20170220_214526.png?dl=0
>
> Thanks.

My bad. I haven't point version dmd. It is 2.072.0. But I get same issue using 2.073.1, but instead `/usr/include/dlang/dmd/std/typecons.d:6097` I'm ended up in `/usr/include/dlang/dmd/std/typecons.d:6408`.

One more. Am I ended up in typecons because on of arguments of function `generateAutocompleteTrees` is template?

On Monday, 20 February 2017 at 13:55:57 UTC, ANtlord wrote:
> Hello! I care for project DCD. I've wanted to fix some issue in it very long time ago. But when I get a little bit of free time I encounter one big problem for me.
>
> I can't debug it using GDB. I can't go through call stack because I get a number of issues. Long story short I've decided to solve them one by one and I really need community's help.
>
> First of them. I can't make `step into` staying on this code line https://github.com/ANtlord/DCD/blob/master/src/server/autocomplete.d#L341.
> What I do:
>
> 1. I compile DCD project using dub with dmd `dub build --compiler=dmd --build=debug --config=server --parallel`
> 2. I run `gdb <path/to/dcd-server>`. I do it from project root directory always `gdb dcd-server`.
> 3. Inside gdb. I do `break autocomplete.d:341`
> 4. Inside gdb. I do `run -p 6767` where `-p 6767` is DCD parameter.
> 5. I launch dcd-client with parameters for calling desirable code `dcd-client  --port 6767 myfile.d -c 53`. File `myfile.d` consists of `void main(string[] args) { int[] asd = [4,2]; asd[0]. }`. Yes, it has one line.
> 6. Inside gdb. I stay on desirable line and I do `step`.
> 7. Inside gdb. I am ended up in `/usr/include/dlang/dmd/std/typecons.d:6097` instead function `generateAutocompleteTrees` called on the line.
>
> I attach this screenshot to be clear https://www.dropbox.com/s/6i2hmbvqwdvopur/Screenshot_20170220_214526.png?dl=0
>
> Thanks.

My bad again. It appears I have a smaller knowledge that I think. I'm ended up in typecons because `allocator` is made by template `scoped` returns instance of internal static struct `Scoped` and it has alias is asigned to method `Scoped_payload` and this is called on https://github.com/ANtlord/DCD/blob/master/src/server/autocomplete.d#L341.

SOLVED

On Wednesday, 22 February 2017 at 14:23:02 UTC, ANtlord wrote:
>
> My bad again. It appears I have a smaller knowledge that I think. I'm ended up in typecons because `allocator` is made by template `scoped` returns instance of internal static struct `Scoped` and it has alias is asigned to method `Scoped_payload` and this is called on https://github.com/ANtlord/DCD/blob/master/src/server/autocomplete.d#L341.
>
> SOLVED

And one more. Method `Scoped_payload` returns instance of type passed as template argument for template method `scoped`. As long as method `generateAutocompleteTrees` requires second argument must be instance of `IAllocator`, object `allocator` "transforms" to instance of class implements `IAllocator` by alias of `Scoped_payload` assigned to `this`.

22.02.2017 17:32, ANtlord пишет:
> On Wednesday, 22 February 2017 at 14:23:02 UTC, ANtlord wrote:
>>
>> My bad again. It appears I have a smaller knowledge that I think. I'm
>> ended up in typecons because `allocator` is made by template `scoped`
>> returns instance of internal static struct `Scoped` and it has alias
>> is asigned to method `Scoped_payload` and this is called on
>> https://github.com/ANtlord/DCD/blob/master/src/server/autocomplete.d#L341.
>>
>>
>> SOLVED
>
> And one more. Method `Scoped_payload` returns instance of type passed as
> template argument for template method `scoped`. As long as method
> `generateAutocompleteTrees` requires second argument must be instance of
> `IAllocator`, object `allocator` "transforms" to instance of class
> implements `IAllocator` by alias of `Scoped_payload` assigned to `this`.
Thank you for sharing this!

On Wednesday, 22 February 2017 at 14:35:14 UTC, drug wrote:

> Thank you for sharing this!

Sarcasm?

Of course no.

When I have some problem I google a solution and often I find it. I'm sure that sharing your solution may be useful for somebody else. But very often people that have solved theirs problem do not share solution - they think something like who cares and so on. You didn't shy to publish your problem and solution and I appreciated it, sincerely.

hmm.. I didn't change my nickname. It was my answer.