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local mpack = vim.mpack
assert(#arg == 5)
local input = io.open(arg[1], 'rb')
local call_output = io.open(arg[2], 'wb')
local remote_output = io.open(arg[3], 'wb')
local metadata_output = io.open(arg[4], 'wb')
local client_output = io.open(arg[5], 'wb')
local c_grammar = require('generators.c_grammar')
local events = c_grammar.grammar:match(input:read('*all'))
local hashy = require'generators.hashy'
local function write_signature(output, ev, prefix, notype)
output:write('('..prefix)
if prefix == "" and #ev.parameters == 0 then
output:write('void')
end
for j = 1, #ev.parameters do
if j > 1 or prefix ~= '' then
output:write(', ')
end
local param = ev.parameters[j]
if not notype then
output:write(param[1]..' ')
end
output:write(param[2])
end
output:write(')')
end
local function write_arglist(output, ev)
for j = 1, #ev.parameters do
local param = ev.parameters[j]
local kind = string.upper(param[1])
output:write(' ADD_C(args, ')
output:write(kind..'_OBJ('..param[2]..')')
output:write(');\n')
end
end
local function call_ui_event_method(output, ev)
output:write('void ui_client_event_'..ev.name..'(Array args)\n{\n')
local hlattrs_args_count = 0
if #ev.parameters > 0 then
output:write(' if (args.size < '..(#ev.parameters))
for j = 1, #ev.parameters do
local kind = ev.parameters[j][1]
if kind ~= "Object" then
if kind == 'HlAttrs' then kind = 'Dictionary' end
output:write('\n || args.items['..(j-1)..'].type != kObjectType'..kind..'')
end
end
output:write(') {\n')
output:write(' ELOG("Error handling ui event \''..ev.name..'\'");\n')
output:write(' return;\n')
output:write(' }\n')
end
for j = 1, #ev.parameters do
local param = ev.parameters[j]
local kind = param[1]
output:write(' '..kind..' arg_'..j..' = ')
if kind == 'HlAttrs' then
-- The first HlAttrs argument is rgb_attrs and second is cterm_attrs
output:write('ui_client_dict2hlattrs(args.items['..(j-1)..'].data.dictionary, '..(hlattrs_args_count == 0 and 'true' or 'false')..');\n')
hlattrs_args_count = hlattrs_args_count + 1
elseif kind == 'Object' then
output:write('args.items['..(j-1)..'];\n')
elseif kind == 'Window' then
output:write('(Window)args.items['..(j-1)..'].data.integer;\n')
else
output:write('args.items['..(j-1)..'].data.'..string.lower(kind)..';\n')
end
end
output:write(' tui_'..ev.name..'(tui')
for j = 1, #ev.parameters do
output:write(', arg_'..j)
end
output:write(');\n')
output:write('}\n\n')
end
for i = 1, #events do
local ev = events[i]
assert(ev.return_type == 'void')
if ev.since == nil and not ev.noexport then
print("Ui event "..ev.name.." lacks since field.\n")
os.exit(1)
end
ev.since = tonumber(ev.since)
if not ev.remote_only then
if not ev.remote_impl and not ev.noexport then
remote_output:write('void remote_ui_'..ev.name)
write_signature(remote_output, ev, 'UI *ui')
remote_output:write('\n{\n')
remote_output:write(' UIData *data = ui->data;\n')
remote_output:write(' Array args = data->call_buf;\n')
write_arglist(remote_output, ev)
remote_output:write(' push_call(ui, "'..ev.name..'", args);\n')
remote_output:write('}\n\n')
end
end
if not (ev.remote_only and ev.remote_impl) then
call_output:write('void ui_call_'..ev.name)
write_signature(call_output, ev, '')
call_output:write('\n{\n')
if ev.remote_only then
call_output:write(' Array args = call_buf;\n')
write_arglist(call_output, ev)
call_output:write(' ui_call_event("'..ev.name..'", args);\n')
elseif ev.compositor_impl then
call_output:write(' ui_comp_'..ev.name)
write_signature(call_output, ev, '', true)
call_output:write(";\n")
call_output:write(' UI_CALL')
write_signature(call_output, ev, '!ui->composed, '..ev.name..', ui', true)
call_output:write(";\n")
else
call_output:write(' UI_CALL')
write_signature(call_output, ev, 'true, '..ev.name..', ui', true)
call_output:write(";\n")
end
call_output:write("}\n\n")
end
if ev.compositor_impl then
call_output:write('void ui_composed_call_'..ev.name)
write_signature(call_output, ev, '')
call_output:write('\n{\n')
call_output:write(' UI_CALL')
write_signature(call_output, ev, 'ui->composed, '..ev.name..', ui', true)
call_output:write(";\n")
call_output:write("}\n\n")
end
if (not ev.remote_only) and (not ev.noexport) and (not ev.client_impl) and (not ev.client_ignore) then
call_ui_event_method(client_output, ev)
end
end
local client_events = {}
for _,ev in ipairs(events) do
if (not ev.noexport) and ((not ev.remote_only) or ev.client_impl) and (not ev.client_ignore) then
client_events[ev.name] = ev
end
end
local hashorder, hashfun = hashy.hashy_hash("ui_client_handler", vim.tbl_keys(client_events), function (idx)
return "event_handlers["..idx.."].name"
end)
client_output:write("static const UIClientHandler event_handlers[] = {\n")
for _, name in ipairs(hashorder) do
client_output:write(' { .name = "'..name..'", .fn = ui_client_event_'..name..'},\n')
end
client_output:write('\n};\n\n')
client_output:write(hashfun)
call_output:close()
remote_output:close()
client_output:close()
-- don't expose internal attributes like "impl_name" in public metadata
local exported_attributes = {'name', 'parameters',
'since', 'deprecated_since'}
local exported_events = {}
for _,ev in ipairs(events) do
local ev_exported = {}
for _,attr in ipairs(exported_attributes) do
ev_exported[attr] = ev[attr]
end
for _,p in ipairs(ev_exported.parameters) do
if p[1] == 'HlAttrs' then
p[1] = 'Dictionary'
end
end
if not ev.noexport then
exported_events[#exported_events+1] = ev_exported
end
end
local packed = mpack.encode(exported_events)
local dump_bin_array = require("generators.dump_bin_array")
dump_bin_array(metadata_output, 'ui_events_metadata', packed)
metadata_output:close()
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