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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
--- @type string[]
local names = vim.tbl_keys(vim.tbl_extend('error', events, aliases))
table.sort(names, function(a, b)
return a:lower() < b:lower()
end)
local enum_tgt = assert(io.open(fileio_enum_file, 'w'))
local names_tgt = assert(io.open(names_file, 'w'))
enum_tgt:write([[
// IWYU pragma: private, include "nvim/autocmd_defs.h"
typedef enum auto_event {]])
names_tgt:write([[
static const struct event_name {
size_t len;
char *name;
int event;
} event_names[NUM_EVENTS] = {]])
for i, name in ipairs(names) do
enum_tgt:write(('\n EVENT_%s = %u,'):format(name:upper(), i - 1))
local pref_name = aliases[name] ~= nil and aliases[name] or name
local win_local = events[pref_name]
assert(win_local ~= nil)
-- Events with positive keys aren't allowed in 'eventignorewin'.
names_tgt:write(
('\n [EVENT_%s] = {%u, "%s", %sEVENT_%s},'):format(
name:upper(),
#name,
name,
win_local and '-' or '',
pref_name:upper()
)
)
end
enum_tgt:write(('\n NUM_EVENTS = %u,'):format(#names))
enum_tgt:write('\n} event_T;\n')
enum_tgt:close()
names_tgt:write('\n};\n')
names_tgt:write('\nstatic AutoCmdVec autocmds[NUM_EVENTS] = { 0 };\n')
local hashorder = vim.tbl_map(string.lower, names)
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()
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