package merlin-lib

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Merlin's libraries

Install 

dune-project
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github.com Readme Changelog Edit opam file Versions (18)

Authors

  1. T
    The Merlin team

Maintainers

  1. D
    defree@gmail.com

Sources

merlin-5.8-505.tbz
sha256=5642cde8486a84aad98fa5c590b70e8dcc6074d7fbdb3b9b8c46b2c5b42f653b
sha512=1d7a7751157e393d3ae248ef5ae24a6b4e81430666c61cc51a3d0ec35804523317036f3d7a3c7f18a7554337f4e5f5989fb677865b261ece3fd2b317903570ba

doc/merlin-lib.ocaml_utils/Ocaml_utils/Diffing_with_keys/index.html

Module Ocaml_utils.Diffing_with_keysSource

When diffing lists where each element has a distinct key, we can refine the diffing patch by introducing two composite edit moves: swaps and moves.

Swaps exchange the position of two elements. Swap cost is set to 2 * change - epsilon. Moves change the position of one element. Move cost is set to delete + addition - epsilon.

When the cost delete + addition is greater than change and with those specific weights, the optimal patch with Swaps and Moves can be computed directly and cheaply from the original optimal patch.

Sourcetype 'a with_pos = {
  1. pos : int;
  2. data : 'a;
}
Sourceval with_pos : 'a list -> 'a with_pos list
Sourcetype ('l, 'r, 'diff) mismatch =
  1. | Name of {
    1. pos : int;
    2. got : string;
    3. expected : string;
    4. types_match : bool;
    }
  2. | Type of {
    1. pos : int;
    2. got : 'l;
    3. expected : 'r;
    4. reason : 'diff;
    }
Sourcetype ('l, 'r, 'diff) change =
  1. | Change of ('l, 'r, 'diff) mismatch
  2. | Swap of {
    1. pos : int * int;
    2. first : string;
    3. last : string;
    }
  3. | Move of {
    1. name : string;
    2. got : int;
    3. expected : int;
    }
  4. | Insert of {
    1. pos : int;
    2. insert : 'r;
    }
  5. | Delete of {
    1. pos : int;
    2. delete : 'l;
    }

This specialized version of changes introduces two composite changes: Move and Swap

Sourceval prefix : ('l, 'r, 'diff) change Format_doc.printer
Sourcemodule Define (D : Diffing.Defs with type eq := unit) : sig ... end