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refactor(sign): move legacy signs to extmarks

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Problem:  The legacy signlist data structures and associated functions are
          redundant since the introduction of extmark signs.
Solution: Store signs defined through the legacy commands in a hashmap, placed
          signs in the extmark tree. Replace signlist associated functions.

Usage of the legacy sign commands should yield no change in behavior with the
exception of:
  - "orphaned signs" are now always removed when the line it is placed on is
    deleted. This used to depend on the value of 'signcolumn'.
  - It is no longer possible to place multiple signs with the same identifier
    in a single group on multiple lines. This will now move the sign instead.

Moreover, both signs placed through the legacy sign commands and through
|nvim_buf_set_extmark()|:
  - Will show up in both |sign-place| and |nvim_buf_get_extmarks()|.
  - Are displayed by increasing sign identifier, left to right.
    Extmark signs used to be ordered decreasingly as opposed to legacy signs.
This commit is contained in:
Luuk van Baal
2023-11-11 00:52:50 +01:00
parent ba58c6f8a4
commit c4afb9788c
33 changed files with 768 additions and 1899 deletions
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2
src/nvim/decoration_provider.c
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@@ -25,7 +25,7 @@ static kvec_t(DecorProvider) decor_providers = KV_INITIAL_VALUE;
static void decor_provider_error(DecorProvider *provider, const char *name, const char *msg)
{
const char *ns_name = describe_ns(provider->ns_id);
const char *ns_name = describe_ns(provider->ns_id, "(UNKNOWN PLUGIN)");
ELOG("error in provider %s.%s: %s", ns_name, name, msg);
msg_schedule_semsg_multiline("Error in decoration provider %s.%s:\n%s", ns_name, name, msg);
}