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digitalmars.D - Step into in debugging.

reply ANtlord <antlord92 gmail.com> writes:
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.
Feb 20 2017
next sibling parent ANtlord <antlord92 gmail.com> writes:
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?
Feb 20 2017
prev sibling parent reply ANtlord <antlord92 gmail.com> writes:
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
Feb 22 2017
parent reply ANtlord <antlord92 gmail.com> writes:
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`.
Feb 22 2017
parent reply drug <drug2004 bk.ru> writes:
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!
Feb 22 2017
parent reply ANtlord <antlord92 gmail.com> writes:
On Wednesday, 22 February 2017 at 14:35:14 UTC, drug wrote:


 Thank you for sharing this!


Sarcasm?
Feb 24 2017
parent reply digitalmars <drug2004 bk.ru> writes:
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.
Feb 25 2017
parent drug <drug2004 bk.ru> writes:
hmm.. I didn't change my nickname. It was my answer.
Feb 25 2017