gdb/python/lib/gdb/dap/evaluate.py

   1 # Copyright 2022, 2023 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 import gdb
  17
  18 from .frames import frame_for_id
  19 from .server import request
  20 from .startup import send_gdb_with_response, in_gdb_thread
  21
  22
  23 # Helper function to evaluate an expression in a certain frame.
  24 @in_gdb_thread
  25 def _evaluate(expr, frame_id):
  26     if frame_id is not None:
  27         frame = frame_for_id(frame_id)
  28         frame.select()
  29     return str(gdb.parse_and_eval(expr))
  30
  31
  32 # FIXME 'format' & hex
  33 # FIXME return a structured response using pretty-printers / varobj
  34 # FIXME supportsVariableType handling
  35 @request("evaluate")
  36 def eval_request(*, expression, frameId=None, **args):
  37     result = send_gdb_with_response(lambda: _evaluate(expression, frameId))
  38     return {
  39         "result": result,
  40         # FIXME
  41         "variablesReference": -1,
  42     }