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Catch errors escaping from Typemod.initial_env for 4.08, 4.09 and 4.10 #1130

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merged 2 commits into from
Apr 14, 2020

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@let-def let-def commented Apr 14, 2020

Running Merlin in an invalid environment (containing interfaces from older version of OCaml, or corrupted ones) would let a top-level failure escape. It is now caught and handled like a normal typing error.
This behavior is also tested to prevent future regressions.

Note: I discovered that Location.none has changed in recent versions of OCaml (default line used to be -1, it is now taken from Lexing.dummy_pos which defines it as 0). That might lead to surprising behaviors in ppx that rely on omp for instant. Too hard to regularize tests, I rely on jq to filter discrepancies.

@trefis trefis merged commit a9fc339 into master Apr 14, 2020
@trefis trefis deleted the initial-escape branch April 14, 2020 11:44
let-def added a commit to let-def/opam-repository that referenced this pull request Apr 15, 2020
CHANGES:

Tue Apr 14 15:25:05 CEST 2020

  + backend
    - full support from OCaml 4.02 to OCaml 4.10 (ocaml/merlin#1117, ocaml/merlin#1127)
    - fix desynchronized cache (ocaml/merlin#1120)
    - short path for OCaml 4.09 and OCaml 4.10 (ocaml/merlin#1082, ocaml/merlin#1117)
    - catch and test environment initialization errors (ocaml/merlin#1083, ocaml/merlin#1130)
    - restore type levels after recovery (ocaml/merlin#1092)
  + frontend
    - fix syntax errors in 4.08 and 4.09 (ocaml/merlin#1081)
    - complete-prefix command accepts -kind option to filter results (ocaml/merlin#1071)
    - code cleanup (ocaml/merlin#1093, ocaml/merlin#1079, ocaml/merlin#1112)
    - better handling of expression and pattern extra nodes during browse tree
      traversal (ocaml/merlin#1091, ocaml/merlin#1121)
    - improve context detection (e.g. appropriate namespace for lookup) for
      various queries (ocaml/merlin#1104, ocaml/merlin#1110)
    - add stdlib to locate source path (ocaml/merlin#1085)
  + editor modes
    - vim: tweak heuristic to select python version (ocaml/merlin#1111)
    - emacs: marlin/call
    - lsp: move server to its own repository (ocaml/merlin#1069),
      https://github.com/ocaml/ocaml-lsp
  + testsuite
    - dune rules for the testsuite are now generated, deterministic and
      can be run individually (ocaml/merlin#1068, ocaml/merlin#1070, ocaml/merlin#1072)
    - fix incorrect command-line arguments in tests (ocaml/merlin#1073)
    - better coverage of frontend features (ocaml/merlin#1075, ocaml/merlin#1078, ocaml/merlin#1088, ocaml/merlin#1089, ocaml/merlin#1126)

Build no longer relies on implicit transitive_deps (ocaml/merlin#1065).
let-def added a commit to let-def/opam-repository that referenced this pull request Apr 15, 2020
CHANGES:

Tue Apr 14 15:25:05 CEST 2020

  + ocaml support
    - full support from OCaml 4.02 to OCaml 4.10 (ocaml/merlin#1117, ocaml/merlin#1127)
    - fix desynchronized cache (ocaml/merlin#1120)
    - short path for OCaml 4.09 and OCaml 4.10 (ocaml/merlin#1082, ocaml/merlin#1117)
    - catch and test environment initialization errors (ocaml/merlin#1083, ocaml/merlin#1130)
    - restore type levels after recovery (ocaml/merlin#1092)
  + merlin binary
    - fix syntax errors in 4.08 and 4.09 (ocaml/merlin#1081)
    - complete-prefix command accepts -kind option to filter results (ocaml/merlin#1071)
    - code cleanup (ocaml/merlin#1093, ocaml/merlin#1079, ocaml/merlin#1112)
    - better handling of expression and pattern extra nodes during browse tree
      traversal (ocaml/merlin#1091, ocaml/merlin#1121)
    - improve context detection (e.g. appropriate namespace for lookup) for
      various queries (ocaml/merlin#1104, ocaml/merlin#1110)
    - add stdlib to locate source path (ocaml/merlin#1085)
  + editor modes
    - vim: tweak heuristic to select python version (ocaml/merlin#1111)
    - emacs: marlin/call
    - lsp: move server to its own repository (ocaml/merlin#1069),
      https://github.com/ocaml/ocaml-lsp
  + test suite
    - dune rules for the test suite are now generated, deterministic and
      can be run individually (ocaml/merlin#1068, ocaml/merlin#1070, ocaml/merlin#1072)
    - fix incorrect command-line arguments in tests (ocaml/merlin#1073)
    - better coverage of frontend features (ocaml/merlin#1075, ocaml/merlin#1078, ocaml/merlin#1088, ocaml/merlin#1089, ocaml/merlin#1126)

Build no longer relies on implicit transitive_deps (ocaml/merlin#1065).
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2 participants