This comment was originally written by @mhausner

Using the command line tool ddbg.dart, The VM breaks at the expected place if I set a breakpoint on the statement c.x = 3;

cc @mhausner.

This comment was originally written by Pete...@gmail.com

To clarify: I did not set any breakpoints. The debugger breaks, because an exception is thrown in that line (as expected). There is an option in the dart-editor to enable pause on uncaught exceptions.

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Will return to repro.

cc @scheglov.

VM returns such stack trace, and Editor just shows it.

And ddbg does the same.

epi all
r
Isolate 827625030 paused on exception
(obj, id 0) object of type NoSuchMethodError
bt
#­0 Object.noSuchMethod at file: object_patch.dart lib: 0 token: 239
  this = (obj, id 1) object of type C
  invocation = (obj, id 2) object of type _InvocationMirror
#­1 main at file: test2.dart lib: 13 token: 24
  c = (obj, id 1) object of type C
#­2 _startIsolate@709387912 at file: isolate_patch.dart lib: 1 token: 1247
  parentPort = (obj, id 3) null
  entryPoint = (closure main() => void file: test2.dart lib: 13 token: 7)
  args = (list, id 5, len 0) []
  message = (obj, id 3) null
  isSpawnUri = true
  controlPort = (obj, id 3) null
  capabilities = (obj, id 3) null
#­3 <anonymous closure> at file: isolate_patch.dart lib: 1 token: 988
  port = (obj, id 7) object of type RawReceivePortImpl
  entryPoint = (closure main() => void file: test2.dart lib: 13 token: 7)
  args = (list, id 5, len 0) []
  @709387912 = (obj, id 3) null
#­4 _RawReceivePortImpl@709387912._handleMessage@709387912 at file: isolate_patch.dart lib: 1 token: 649
  handler = (closure _startMainIsolate.<anonymous closure>(dynamic) => dynamic file: isolate_patch.dart lib: 1 token: 971)
  message = (obj, id 3) null

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cc @devoncarew.
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