[PATCH v1] gdb/DAP - Add completionsRequest

[Lancelot SIX]

> +def _completions(text: str, column: int, line: Optional[int], frameId: Optional[int]):
> +    cmd_output = gdb.execute("complete " + text, to_string=True)
> +    result = []
> +    for line in cmd_output.splitlines():
> +        if "List may be truncated" not in line:

Hi Simon,

Instead of filtering out this message, would it make sense to allow GDB
to list all possible completions without size limit?

This can be done with:

    cmd_output = gdb.execute("with max-completions unlimited -- complete " + text,
                             to_string=True)

I am not very familiar with the DAP protocol, but looking at it I did
not see a mechanism to limit the number of items returned, or a way for
GDB to let the client know that more options are available.  Is there a
way to do this?

Best,
Lancelot.

> +            result.append({"label": line, "type": "function", "length": len(text)})
> +    return {"targets": result}
> +
> +
> +@request("completions")
> +@capability("supportsCompletionsRequest")
> +@capability("completionTriggerCharacters", [" ", "."])
> +def completions(
> +    *,
> +    text: str,
> +    column: int,
> +    line: Optional[int] = None,
> +    frameId: Optional[int] = None,
> +    **extra
> +):
> +
> +    return send_gdb_with_response(lambda: _completions(text, column, line, frameId))
> -- 
> 2.41.0
>