[endb] nim --debugger:endb: eval 1+2 doesn't do anything

[timotheecour]

• neither these work in endb:
  eval 1+2
  o /tmp/z01.txt 1+2

nim c --nimcache:/tmp/nim//nimcache/ -o:/tmp/nim//app -r --debugger:endb -d:case1 tests/nim/inim/t03_debugger.nim
Hint: operation successful (13045 lines compiled; 0.194 sec total; 20.199MiB peakmem; Debug Build) [SuccessX]
*** endb| t03_debugger.nim(1) t03_debugger ***
*** endb| >>r
@[1, 2, 3]
t03_debugger.nim(11)     t03_debugger
t03_debugger.nim(8)      fun
lib/system.nim(2807)     sysFatal
Error: unhandled exception: index out of bounds [IndexError]
*** endb| lib/system.nim(2807) sysFatal ***
*** endb| >>eval 1+2
*** endb| >>o /tmp/z01.txt 1+2

probably doesn't matter but here's my test file:
tests/nim/inim/t03_debugger.nim:

var g0 = 1234

proc fun()=
  var a = 10
  var b = @[1, 2, 3]
  echo b
  when defined(case1):
    echo b[3]
  echo "end_fun"

fun()
echo "end"

• --debugger:gdb doesn't seem to work
  also tried --debugger:gdb but that's even worse:
  nim c --nimcache:/tmp/nim//nimcache/ -o:/tmp/nim//app -r --debugger:gdb -d:case1 tests/nim/inim/t03_debugger.nim
  CC: timn_t03_debugger
  CC: stdlib_system
  Hint: operation successful (12180 lines compiled; 0.785 sec total; 16.254MiB peakmem; Debug Build) [SuccessX]
  @[1, 2, 3]
  /Users/timothee/git_clone/nim/timn/tests/nim/inim/t03_debugger.nim(11) t03_debugger
  /Users/timothee/git_clone/nim/timn/tests/nim/inim/t03_debugger.nim(8) fun
  /Users/timothee/git_clone/nim/Nim/lib/system.nim(2807) sysFatal
  Error: unhandled exception: index out of bounds [IndexError]
  Error: execution of an external program failed: '/tmp/nim//app '

[Araq]

We could map sysFatal to something GDB understands.

[timotheecour]

@Araq I don't think sysFatal is related; if I put a breakpoint before the line that causes sysFatal (echo b[3]), and press r, eval 1+2 still doesn't do anything

[timotheecour]

closing since ENDB will die in favor of gdb/lldb => see #8596 for lldb issues