package merlin-lib

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Merlin's libraries

Install

Dune Dependency

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Authors

T

The Merlin team

Maintainers

D

defree@gmail.com

Sources

merlin-4.19-414.tbz

sha256=60a630f59203a9ce7047a5f04d0f239945960dac6f38102922e328b6d2657384

sha512=19f8ec152356873e29c05b971a529146bb7079929037c2b35a5c0afb0b3adf662341ee8527282c5fdd16de391d01c2c469fc8629af9e0ae443fa9f42472b70bb

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

Module `Ocaml_utils.Diffing_with_keys`Source

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 = {

pos : int;
data : 'a;

}

Sourceval with_pos : 'a list -> 'a with_pos list

Sourcetype ('l, 'r, 'diff) mismatch =

| Name of {
1. pos : int;
2. got : string;
3. expected : string;
4. types_match : bool;
}
| Type of {
1. pos : int;
2. got : 'l;
3. expected : 'r;
4. reason : 'diff;
}

Sourcetype ('l, 'r, 'diff) change =

| Change of ('l, 'r, 'diff) mismatch
| Swap of {
1. pos : int * int;
2. first : string;
3. last : string;
}
| Move of {
1. name : string;
2. got : int;
3. expected : int;
}
| Insert of {
1. pos : int;
2. insert : 'r;
}
| Delete of {
1. pos : int;
2. delete : 'l;
}

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

Sourceval prefix : Format.formatter -> ('l, 'r, 'diff) change -> unit

Sourcemodule Define (D : Diffing.Defs with type eq := unit) : sig ... end