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perf(events): use hashy for event name lookup (#32802)

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This commit is contained in:
zeertzjq
2025-03-10 06:56:02 +08:00
committed by GitHub
parent 37786ccfcf
commit 15f2da55a8
3 changed files with 32 additions and 19 deletions
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27
src/gen/gen_events.lua
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@ -1,6 +1,7 @@
local fileio_enum_file = arg[1]
local names_file = arg[2]
local hashy = require('gen.hashy')
local auevents = require('nvim.auevents')
local events = auevents.events
local aliases = auevents.aliases
@ -41,9 +42,27 @@ for i, name in ipairs(names) do
end
enum_tgt:write(('\n NUM_EVENTS = %u,'):format(#names))
names_tgt:write('\n [NUM_EVENTS] = {0, NULL, (event_T)0},\n};\n')
names_tgt:write('\nstatic AutoCmdVec autocmds[NUM_EVENTS] = { 0 };\n')
names_tgt:close()
enum_tgt:write('\n} event_T;\n')
enum_tgt:close()
names_tgt:write('\n [NUM_EVENTS] = {0, NULL, (event_T)0},\n};\n')
names_tgt:write('\nstatic AutoCmdVec autocmds[NUM_EVENTS] = { 0 };\n')
local hashorder = vim.tbl_map(string.lower, names)
table.sort(hashorder)
local hashfun
hashorder, hashfun = hashy.hashy_hash('event_name2nr', hashorder, function(idx)
return 'event_names[event_hash[' .. idx .. ']].name'
end, true)
names_tgt:write([[
static const event_T event_hash[] = {]])
for _, lower_name in ipairs(hashorder) do
names_tgt:write(('\n EVENT_%s,'):format(lower_name:upper()))
end
names_tgt:write('\n};\n\n')
names_tgt:write('static ' .. hashfun)
names_tgt:close()

2
src/nvim/CMakeLists.txt
View File

@ -677,7 +677,7 @@ add_custom_command(OUTPUT ${GENERATED_FUNCS} ${FUNCS_DATA}
add_custom_command(OUTPUT ${GENERATED_EVENTS_ENUM} ${GENERATED_EVENTS_NAMES_MAP}
COMMAND ${LUA_GEN} ${EVENTS_GENERATOR} ${GENERATED_EVENTS_ENUM} ${GENERATED_EVENTS_NAMES_MAP}
DEPENDS ${LUA_GEN_DEPS} ${EVENTS_GENERATOR} ${CMAKE_CURRENT_LIST_DIR}/auevents.lua
DEPENDS ${LUA_GEN_DEPS} ${EVENTS_GENERATOR} ${GENERATOR_HASHY} ${CMAKE_CURRENT_LIST_DIR}/auevents.lua
)
add_custom_command(OUTPUT ${GENERATED_KEYCODE_NAMES}

22
src/nvim/autocmd.c
View File

@ -618,36 +618,30 @@ bool is_aucmd_win(win_T *win)
event_T event_name2nr(const char *start, char **end)
{
const char *p;
int i;
// the event name ends with end of line, '|', a blank or a comma
for (p = start; *p && !ascii_iswhite(*p) && *p != ',' && *p != '|'; p++) {}
for (i = 0; event_names[i].name != NULL; i++) {
int len = (int)event_names[i].len;
if (len == p - start && STRNICMP(event_names[i].name, start, len) == 0) {
break;
}
}
int hash_idx = event_name2nr_hash(start, (size_t)(p - start));
if (*p == ',') {
p++;
}
*end = (char *)p;
if (event_names[i].name == NULL) {
if (hash_idx < 0) {
return NUM_EVENTS;
}
return (event_T)abs(event_names[i].event);
return (event_T)abs(event_names[event_hash[hash_idx]].event);
}
/// Return the event number for event name "str".
/// Return NUM_EVENTS if the event name was not found.
event_T event_name2nr_str(String str)
{
for (int i = 0; event_names[i].name != NULL; i++) {
if (str.size == event_names[i].len && STRNICMP(str.data, event_names[i].name, str.size) == 0) {
return (event_T)abs(event_names[i].event);
}
int hash_idx = event_name2nr_hash(str.data, str.size);
if (hash_idx < 0) {
return NUM_EVENTS;
}
return NUM_EVENTS;
return (event_T)abs(event_names[event_hash[hash_idx]].event);
}
/// Return the name for event