Code navigation doesn't work

[mw108]

I installed the Pascal extension in my VScode (Windows) and followed the installation instructions.

• I downloaded and installed (unzipped) GNU Global to c:\Apps\gnu\glo6612wb
• I downloaded and installed (unzipped) Exuberant Tags to c:\Apps\gnu\ctags58\
• I updated my %PATH% environment variable
• I created the two required system environment variables and populated them with the required path and value
• I installed Python 2.7.18
• I added the Python path to %PATH% environment variable
• I installed Pygments via pip install Pygments
• I restarted Windows

Everything went fine and VScode doesn't complain or throws any errors. However, when I open a Delphi project and a .pas file, for instance Unit1.pas code navigation is not working.

unit Unit1;

uses ...;

interface

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  public
  end;

implementation

{$R *.dfm}

procedure DoSomething(const AIndex: Integer);
begin
  // ...
end;

procedure TForm1.FormCreate(Sender: TObject);
var
  i: Integer;
begin
  for i := 0 to 99 do
    DoSomething(i);
end;

end.

When I try to Ctrl + Left Click on i or DoSomething nothing is happening. Also right click to open the context menu and selecting Go to Definition (F12) is simply showing No definition found for 'i' or No definition found for 'DoSomething'.

What is the problem here and how can I fix it?

[alefragnani]

Hi @mw108 ,

You have two approaches.

First, let's see if gtags and global are working. To this,

1. Open Command Prompt
2. Navigate to the same folder you opened in VS Code
3. Run gtags
4. The output should be nothing or something like below, which I'm not sure when this warning started

C:\Apps\glo6612wb\bin\../share/gtags/script/pygments_parser.py:92: SyntaxWarning: invalid escape sequence '\s'
  tag = re.sub('\s+', '', tag)    # remove newline and spaces
C:\Apps\glo6612wb\bin\../share/gtags/script/pygments_parser.py:161: SyntaxWarning: invalid escape sequence '\s'
  match = re.search(r'(\S+)\s+(\d+)\s+' + re.escape(path) + '\s+(.*)$', line)

5. Run `global -f .\pathto\Unit1.pas
6. The output should be each method within the file in a format of MethodName lineNumber pathToUnit1.pas MethodDeclaration, like:

DoSomething 24 .\src\Unit1.pas procedure DoSomething(const AIndex: Integer);
...

If steps 3 of 5 does not produce the outputs in steps 4 or 6, then global or gtags are not working.

If everything is working in Command Prompt, then try to run the same steps in the Terminal of VS Code. If it does not work, then VS Code may not be recognizing the PATH environment variables you created.

Hope this helps

[mw108]

Sorry for the late response!

I followed your steps: Running gtags in console window produced an error that Python was not found, even though it was correctly added to the PATH environment. Running python from console window just opened the Microsoft Store with a recommendation to install Python 3. I disabled the App Alias in the Apps & Features setting and was then able to run both python and gtags from console.

gtags did not produce any output.
global -f .\pathto\Unit.pas produced the output you described, a list of MethodName, lineNumber, unitName.pas, methodDeclaration(with: Parameters);

However, even after restarting Windows and VScode, the code navigation still does not work. I also tried restarting the Pascal extension and it produces an Uncaught Errors (1) message:

Runtime Status
Activation
Activated by onStartupFinished event: 1ms

Uncaught Errors (1)
Cannot read properties of undefined (reading 'document')

Running gtags and globals command from VScode terminal produces the same output as described above.

Any ideas?