| 1 | module lsp_server_manager_module |
| 2 | ! Manages multiple language servers |
| 3 | use iso_fortran_env, only: int32, int64, real64, error_unit |
| 4 | use iso_c_binding |
| 5 | use json_module |
| 6 | use lsp_protocol_module |
| 7 | implicit none |
| 8 | private |
| 9 | |
| 10 | public :: lsp_server_t |
| 11 | public :: lsp_manager_t |
| 12 | public :: init_lsp_manager, cleanup_lsp_manager |
| 13 | public :: get_or_start_server, stop_server |
| 14 | public :: send_request, send_notification |
| 15 | public :: process_server_messages |
| 16 | public :: register_callback |
| 17 | public :: get_language_for_file, start_lsp_for_file |
| 18 | public :: start_all_lsp_servers_for_file ! NEW: multi-server support |
| 19 | public :: get_server_with_capability ! NEW: capability-based routing |
| 20 | public :: notify_file_opened, notify_file_changed, notify_file_saved, notify_file_closed |
| 21 | public :: request_completion, request_hover, request_definition, request_references, request_code_actions |
| 22 | public :: request_document_symbols, request_signature_help, request_formatting, request_rename |
| 23 | public :: request_workspace_symbols |
| 24 | public :: set_diagnostics_handler |
| 25 | public :: filename_to_uri |
| 26 | |
| 27 | ! Capability constants for routing requests to the right server |
| 28 | integer, parameter, public :: CAP_COMPLETION = 1 |
| 29 | integer, parameter, public :: CAP_DEFINITION = 2 |
| 30 | integer, parameter, public :: CAP_REFERENCES = 3 |
| 31 | integer, parameter, public :: CAP_RENAME = 4 |
| 32 | integer, parameter, public :: CAP_CODE_ACTIONS = 5 |
| 33 | integer, parameter, public :: CAP_FORMATTING = 6 |
| 34 | integer, parameter, public :: CAP_DIAGNOSTICS = 7 |
| 35 | integer, parameter, public :: CAP_HOVER = 8 |
| 36 | integer, parameter, public :: CAP_DOCUMENT_SYMBOLS = 9 |
| 37 | integer, parameter, public :: CAP_WORKSPACE_SYMBOLS = 10 |
| 38 | integer, parameter, public :: NUM_CAPABILITIES = 10 |
| 39 | |
| 40 | ! Language server configuration |
| 41 | type :: server_config_t |
| 42 | character(len=:), allocatable :: language |
| 43 | character(len=:), allocatable :: name ! Server name (e.g., "pyright", "ruff") |
| 44 | character(len=:), allocatable :: command |
| 45 | character(len=:), allocatable :: file_patterns |
| 46 | logical :: capabilities(10) = .false. ! Which features this server provides |
| 47 | end type server_config_t |
| 48 | |
| 49 | ! Language server instance |
| 50 | type :: lsp_server_t |
| 51 | type(c_ptr) :: handle = c_null_ptr |
| 52 | character(len=:), allocatable :: language |
| 53 | character(len=:), allocatable :: name ! Server name (e.g., "pyright", "ruff") |
| 54 | character(len=:), allocatable :: command |
| 55 | character(len=:), allocatable :: root_path |
| 56 | logical :: initialized = .false. |
| 57 | logical :: initializing = .false. |
| 58 | integer :: process_id = -1 |
| 59 | integer :: config_index = 0 ! Index into configs array |
| 60 | integer :: init_request_id = 0 ! Request ID of initialize request |
| 61 | |
| 62 | ! Capabilities |
| 63 | logical :: supports_completion = .false. |
| 64 | logical :: supports_hover = .false. |
| 65 | logical :: supports_definition = .false. |
| 66 | logical :: supports_references = .false. |
| 67 | logical :: supports_code_actions = .false. |
| 68 | logical :: supports_document_symbols = .false. |
| 69 | logical :: supports_workspace_symbols = .false. |
| 70 | logical :: supports_formatting = .false. |
| 71 | logical :: supports_rename = .false. |
| 72 | |
| 73 | ! Request tracking |
| 74 | integer, allocatable :: pending_requests(:) |
| 75 | integer :: num_pending = 0 |
| 76 | |
| 77 | ! Pending didOpen notifications (queued before initialization) |
| 78 | type(pending_didopen_t), allocatable :: pending_didopens(:) |
| 79 | integer :: num_pending_didopens = 0 |
| 80 | |
| 81 | ! Message buffer |
| 82 | character(len=:), allocatable :: read_buffer |
| 83 | end type lsp_server_t |
| 84 | |
| 85 | ! Pending didOpen notification |
| 86 | type :: pending_didopen_t |
| 87 | character(len=:), allocatable :: filename |
| 88 | character(len=:), allocatable :: content |
| 89 | end type pending_didopen_t |
| 90 | |
| 91 | ! Callback type for responses |
| 92 | abstract interface |
| 93 | subroutine response_callback(request_id, response) |
| 94 | use lsp_protocol_module, only: lsp_message_t |
| 95 | integer, intent(in) :: request_id |
| 96 | type(lsp_message_t), intent(in) :: response |
| 97 | end subroutine response_callback |
| 98 | end interface |
| 99 | |
| 100 | ! Callback type for diagnostics notifications (includes server_index for multi-LSP) |
| 101 | abstract interface |
| 102 | subroutine diagnostics_callback(notification, server_index) |
| 103 | use lsp_protocol_module, only: lsp_message_t |
| 104 | type(lsp_message_t), intent(in) :: notification |
| 105 | integer, intent(in) :: server_index |
| 106 | end subroutine diagnostics_callback |
| 107 | end interface |
| 108 | |
| 109 | ! Request callback entry |
| 110 | type :: callback_entry_t |
| 111 | integer :: request_id |
| 112 | procedure(response_callback), pointer, nopass :: callback => null() |
| 113 | end type callback_entry_t |
| 114 | |
| 115 | ! Main LSP manager |
| 116 | type :: lsp_manager_t |
| 117 | type(lsp_server_t), allocatable :: servers(:) |
| 118 | integer :: num_servers = 0 |
| 119 | type(server_config_t), allocatable :: configs(:) |
| 120 | integer :: num_configs = 0 |
| 121 | type(callback_entry_t), allocatable :: callbacks(:) |
| 122 | integer :: num_callbacks = 0 |
| 123 | procedure(diagnostics_callback), pointer, nopass :: diagnostics_handler => null() |
| 124 | end type lsp_manager_t |
| 125 | |
| 126 | ! C interfaces |
| 127 | interface |
| 128 | subroutine lsp_start_server_f(command, command_len, handle) bind(c, name='lsp_start_server_f') |
| 129 | use iso_c_binding |
| 130 | character(c_char), intent(in) :: command(*) |
| 131 | integer(c_int), value :: command_len |
| 132 | type(c_ptr), intent(out) :: handle |
| 133 | end subroutine lsp_start_server_f |
| 134 | |
| 135 | subroutine lsp_stop_server_f(handle) bind(c, name='lsp_stop_server_f') |
| 136 | use iso_c_binding |
| 137 | type(c_ptr), intent(inout) :: handle |
| 138 | end subroutine lsp_stop_server_f |
| 139 | |
| 140 | function lsp_send_message_f(handle, message, message_len) bind(c, name='lsp_send_message_f') |
| 141 | use iso_c_binding |
| 142 | integer(c_int) :: lsp_send_message_f |
| 143 | type(c_ptr), intent(in) :: handle |
| 144 | character(c_char), intent(in) :: message(*) |
| 145 | integer(c_int), value :: message_len |
| 146 | end function lsp_send_message_f |
| 147 | |
| 148 | function lsp_read_message_f(handle, buffer, buffer_len) bind(c, name='lsp_read_message_f') |
| 149 | use iso_c_binding |
| 150 | integer(c_int) :: lsp_read_message_f |
| 151 | type(c_ptr), intent(in) :: handle |
| 152 | character(c_char), intent(out) :: buffer(*) |
| 153 | integer(c_int), value :: buffer_len |
| 154 | end function lsp_read_message_f |
| 155 | |
| 156 | function lsp_is_running_f(handle) bind(c, name='lsp_is_running_f') |
| 157 | use iso_c_binding |
| 158 | integer(c_int) :: lsp_is_running_f |
| 159 | type(c_ptr), intent(in) :: handle |
| 160 | end function lsp_is_running_f |
| 161 | |
| 162 | function lsp_get_pid_f(handle) bind(c, name='lsp_get_pid_f') |
| 163 | use iso_c_binding |
| 164 | integer(c_int) :: lsp_get_pid_f |
| 165 | type(c_ptr), intent(in) :: handle |
| 166 | end function lsp_get_pid_f |
| 167 | end interface |
| 168 | |
| 169 | contains |
| 170 | |
| 171 | subroutine init_lsp_manager(manager) |
| 172 | type(lsp_manager_t), intent(out) :: manager |
| 173 | |
| 174 | allocate(manager%servers(0)) |
| 175 | allocate(manager%configs(0)) |
| 176 | allocate(manager%callbacks(0)) |
| 177 | |
| 178 | ! Load default server configurations |
| 179 | call load_default_configs(manager) |
| 180 | end subroutine init_lsp_manager |
| 181 | |
| 182 | subroutine cleanup_lsp_manager(manager) |
| 183 | type(lsp_manager_t), intent(inout) :: manager |
| 184 | integer :: i |
| 185 | |
| 186 | ! Stop all servers |
| 187 | do i = 1, manager%num_servers |
| 188 | call stop_server(manager%servers(i)) |
| 189 | end do |
| 190 | |
| 191 | if (allocated(manager%servers)) deallocate(manager%servers) |
| 192 | if (allocated(manager%configs)) deallocate(manager%configs) |
| 193 | if (allocated(manager%callbacks)) deallocate(manager%callbacks) |
| 194 | |
| 195 | manager%num_servers = 0 |
| 196 | manager%num_configs = 0 |
| 197 | manager%num_callbacks = 0 |
| 198 | end subroutine cleanup_lsp_manager |
| 199 | |
| 200 | subroutine load_default_configs(manager) |
| 201 | type(lsp_manager_t), intent(inout) :: manager |
| 202 | logical :: caps(NUM_CAPABILITIES) |
| 203 | |
| 204 | ! Python - Pyright for semantic features (rename, definition, references, completion, hover) |
| 205 | caps = .false. |
| 206 | caps(CAP_COMPLETION) = .true. |
| 207 | caps(CAP_DEFINITION) = .true. |
| 208 | caps(CAP_REFERENCES) = .true. |
| 209 | caps(CAP_RENAME) = .true. |
| 210 | caps(CAP_HOVER) = .true. |
| 211 | caps(CAP_DIAGNOSTICS) = .true. |
| 212 | caps(CAP_DOCUMENT_SYMBOLS) = .true. |
| 213 | caps(CAP_WORKSPACE_SYMBOLS) = .true. |
| 214 | call add_config(manager, "python", "pyright", "pyright-langserver --stdio", "*.py", caps) |
| 215 | |
| 216 | ! Python - Ruff for linting and code actions |
| 217 | caps = .false. |
| 218 | caps(CAP_CODE_ACTIONS) = .true. |
| 219 | caps(CAP_FORMATTING) = .true. |
| 220 | caps(CAP_DIAGNOSTICS) = .true. |
| 221 | call add_config(manager, "python", "ruff", "ruff server", "*.py", caps) |
| 222 | |
| 223 | ! Rust |
| 224 | caps = .false. |
| 225 | caps(CAP_COMPLETION) = .true. |
| 226 | caps(CAP_DEFINITION) = .true. |
| 227 | caps(CAP_REFERENCES) = .true. |
| 228 | caps(CAP_RENAME) = .true. |
| 229 | caps(CAP_CODE_ACTIONS) = .true. |
| 230 | caps(CAP_HOVER) = .true. |
| 231 | caps(CAP_DIAGNOSTICS) = .true. |
| 232 | caps(CAP_DOCUMENT_SYMBOLS) = .true. |
| 233 | caps(CAP_FORMATTING) = .true. |
| 234 | call add_config(manager, "rust", "rust-analyzer", "rust-analyzer", "*.rs", caps) |
| 235 | |
| 236 | ! C/C++ |
| 237 | caps = .false. |
| 238 | caps(CAP_COMPLETION) = .true. |
| 239 | caps(CAP_DEFINITION) = .true. |
| 240 | caps(CAP_REFERENCES) = .true. |
| 241 | caps(CAP_RENAME) = .true. |
| 242 | caps(CAP_CODE_ACTIONS) = .true. |
| 243 | caps(CAP_HOVER) = .true. |
| 244 | caps(CAP_DIAGNOSTICS) = .true. |
| 245 | caps(CAP_DOCUMENT_SYMBOLS) = .true. |
| 246 | caps(CAP_FORMATTING) = .true. |
| 247 | call add_config(manager, "c", "clangd", "clangd", "*.c,*.h", caps) |
| 248 | call add_config(manager, "cpp", "clangd", "clangd", "*.cpp,*.cc,*.cxx,*.hpp,*.hxx", caps) |
| 249 | |
| 250 | ! Go |
| 251 | caps = .false. |
| 252 | caps(CAP_COMPLETION) = .true. |
| 253 | caps(CAP_DEFINITION) = .true. |
| 254 | caps(CAP_REFERENCES) = .true. |
| 255 | caps(CAP_RENAME) = .true. |
| 256 | caps(CAP_CODE_ACTIONS) = .true. |
| 257 | caps(CAP_HOVER) = .true. |
| 258 | caps(CAP_DIAGNOSTICS) = .true. |
| 259 | caps(CAP_DOCUMENT_SYMBOLS) = .true. |
| 260 | caps(CAP_FORMATTING) = .true. |
| 261 | call add_config(manager, "go", "gopls", "gopls", "*.go", caps) |
| 262 | |
| 263 | ! TypeScript/JavaScript |
| 264 | caps = .false. |
| 265 | caps(CAP_COMPLETION) = .true. |
| 266 | caps(CAP_DEFINITION) = .true. |
| 267 | caps(CAP_REFERENCES) = .true. |
| 268 | caps(CAP_RENAME) = .true. |
| 269 | caps(CAP_CODE_ACTIONS) = .true. |
| 270 | caps(CAP_HOVER) = .true. |
| 271 | caps(CAP_DIAGNOSTICS) = .true. |
| 272 | caps(CAP_DOCUMENT_SYMBOLS) = .true. |
| 273 | caps(CAP_FORMATTING) = .true. |
| 274 | call add_config(manager, "typescript", "ts-server", "typescript-language-server --stdio", "*.ts,*.tsx", caps) |
| 275 | call add_config(manager, "javascript", "ts-server", "typescript-language-server --stdio", "*.js,*.jsx", caps) |
| 276 | |
| 277 | ! Fortran |
| 278 | caps = .false. |
| 279 | caps(CAP_COMPLETION) = .true. |
| 280 | caps(CAP_DEFINITION) = .true. |
| 281 | caps(CAP_REFERENCES) = .true. |
| 282 | caps(CAP_HOVER) = .true. |
| 283 | caps(CAP_DIAGNOSTICS) = .true. |
| 284 | caps(CAP_DOCUMENT_SYMBOLS) = .true. |
| 285 | caps(CAP_CODE_ACTIONS) = .true. ! fortls has limited code action support |
| 286 | call add_config(manager, "fortran", "fortls", "fortls", "*.f90,*.f95,*.f03,*.f08", caps) |
| 287 | |
| 288 | ! TODO: Load from config file |
| 289 | end subroutine load_default_configs |
| 290 | |
| 291 | ! Convert filename to absolute file:// URI |
| 292 | function filename_to_uri(filename) result(uri) |
| 293 | character(len=*), intent(in) :: filename |
| 294 | character(len=:), allocatable :: uri |
| 295 | character(len=4096) :: cwd |
| 296 | integer :: status |
| 297 | |
| 298 | if (len_trim(filename) > 0 .and. filename(1:1) == '/') then |
| 299 | ! Already absolute path |
| 300 | uri = "file://" // trim(filename) |
| 301 | else |
| 302 | ! Relative path - prepend current directory |
| 303 | call getcwd(cwd, status) |
| 304 | if (status == 0) then |
| 305 | uri = "file://" // trim(cwd) // "/" // trim(filename) |
| 306 | else |
| 307 | ! Fallback if getcwd fails |
| 308 | uri = "file://" // trim(filename) |
| 309 | end if |
| 310 | end if |
| 311 | end function filename_to_uri |
| 312 | |
| 313 | subroutine add_config(manager, language, name, command, patterns, capabilities) |
| 314 | type(lsp_manager_t), intent(inout) :: manager |
| 315 | character(len=*), intent(in) :: language, name, command, patterns |
| 316 | logical, intent(in) :: capabilities(NUM_CAPABILITIES) |
| 317 | type(server_config_t), allocatable :: new_configs(:) |
| 318 | |
| 319 | allocate(new_configs(manager%num_configs + 1)) |
| 320 | if (manager%num_configs > 0) then |
| 321 | new_configs(1:manager%num_configs) = manager%configs |
| 322 | end if |
| 323 | |
| 324 | new_configs(manager%num_configs + 1)%language = language |
| 325 | new_configs(manager%num_configs + 1)%name = name |
| 326 | new_configs(manager%num_configs + 1)%command = command |
| 327 | new_configs(manager%num_configs + 1)%file_patterns = patterns |
| 328 | new_configs(manager%num_configs + 1)%capabilities = capabilities |
| 329 | |
| 330 | deallocate(manager%configs) |
| 331 | manager%configs = new_configs |
| 332 | manager%num_configs = manager%num_configs + 1 |
| 333 | end subroutine add_config |
| 334 | |
| 335 | function get_or_start_server(manager, language, root_path) result(server_index) |
| 336 | type(lsp_manager_t), intent(inout) :: manager |
| 337 | character(len=*), intent(in) :: language, root_path |
| 338 | integer :: server_index |
| 339 | integer :: i |
| 340 | |
| 341 | ! Check if server already exists |
| 342 | do i = 1, manager%num_servers |
| 343 | if (manager%servers(i)%language == language .and. & |
| 344 | manager%servers(i)%root_path == root_path) then |
| 345 | server_index = i |
| 346 | return |
| 347 | end if |
| 348 | end do |
| 349 | |
| 350 | ! Start new server |
| 351 | server_index = start_new_server(manager, language, root_path) |
| 352 | end function get_or_start_server |
| 353 | |
| 354 | function start_new_server(manager, language, root_path) result(server_index) |
| 355 | type(lsp_manager_t), intent(inout) :: manager |
| 356 | character(len=*), intent(in) :: language, root_path |
| 357 | integer :: server_index |
| 358 | type(lsp_server_t), allocatable :: new_servers(:) |
| 359 | character(len=:), allocatable :: command |
| 360 | integer :: i |
| 361 | |
| 362 | server_index = 0 |
| 363 | |
| 364 | ! Find command for language |
| 365 | command = "" |
| 366 | do i = 1, manager%num_configs |
| 367 | if (manager%configs(i)%language == language) then |
| 368 | command = manager%configs(i)%command |
| 369 | exit |
| 370 | end if |
| 371 | end do |
| 372 | |
| 373 | if (command == "") then |
| 374 | write(error_unit, '(a,a)') "No LSP server configured for language: ", language |
| 375 | return |
| 376 | end if |
| 377 | |
| 378 | ! Expand server array |
| 379 | allocate(new_servers(manager%num_servers + 1)) |
| 380 | if (manager%num_servers > 0) then |
| 381 | new_servers(1:manager%num_servers) = manager%servers |
| 382 | end if |
| 383 | |
| 384 | ! Initialize new server |
| 385 | new_servers(manager%num_servers + 1)%language = language |
| 386 | new_servers(manager%num_servers + 1)%command = command |
| 387 | new_servers(manager%num_servers + 1)%root_path = root_path |
| 388 | new_servers(manager%num_servers + 1)%initialized = .false. |
| 389 | new_servers(manager%num_servers + 1)%initializing = .false. |
| 390 | allocate(new_servers(manager%num_servers + 1)%pending_requests(100)) |
| 391 | new_servers(manager%num_servers + 1)%num_pending = 0 |
| 392 | new_servers(manager%num_servers + 1)%read_buffer = "" |
| 393 | |
| 394 | ! Start the server process |
| 395 | call lsp_start_server_f(command//c_null_char, len(command), & |
| 396 | new_servers(manager%num_servers + 1)%handle) |
| 397 | |
| 398 | if (c_associated(new_servers(manager%num_servers + 1)%handle)) then |
| 399 | new_servers(manager%num_servers + 1)%process_id = & |
| 400 | lsp_get_pid_f(new_servers(manager%num_servers + 1)%handle) |
| 401 | |
| 402 | deallocate(manager%servers) |
| 403 | manager%servers = new_servers |
| 404 | manager%num_servers = manager%num_servers + 1 |
| 405 | server_index = manager%num_servers |
| 406 | |
| 407 | ! Send initialization request |
| 408 | call initialize_server(manager%servers(server_index)) |
| 409 | else |
| 410 | write(error_unit, '(a,a)') "Failed to start LSP server: ", command |
| 411 | end if |
| 412 | end function start_new_server |
| 413 | |
| 414 | subroutine initialize_server(server) |
| 415 | type(lsp_server_t), intent(inout) :: server |
| 416 | type(lsp_message_t) :: msg |
| 417 | character(len=:), allocatable :: json_msg |
| 418 | |
| 419 | if (server%initializing .or. server%initialized) return |
| 420 | |
| 421 | server%initializing = .true. |
| 422 | |
| 423 | ! Create initialization request |
| 424 | msg = create_initialize_request(server%process_id, server%root_path, "fac") |
| 425 | |
| 426 | ! Store the request ID so we can match the response |
| 427 | server%init_request_id = msg%id |
| 428 | |
| 429 | ! Send it |
| 430 | json_msg = format_json_rpc(msg) |
| 431 | call send_raw_message(server, json_msg) |
| 432 | |
| 433 | ! Track the request |
| 434 | call track_request(server, msg%id) |
| 435 | end subroutine initialize_server |
| 436 | |
| 437 | subroutine stop_server(server) |
| 438 | type(lsp_server_t), intent(inout) :: server |
| 439 | |
| 440 | if (c_associated(server%handle)) then |
| 441 | ! Send shutdown request |
| 442 | ! TODO: Implement proper shutdown sequence |
| 443 | |
| 444 | call lsp_stop_server_f(server%handle) |
| 445 | server%handle = c_null_ptr |
| 446 | end if |
| 447 | |
| 448 | server%initialized = .false. |
| 449 | server%initializing = .false. |
| 450 | server%process_id = -1 |
| 451 | end subroutine stop_server |
| 452 | |
| 453 | subroutine send_request(manager, server_index, msg, callback) |
| 454 | type(lsp_manager_t), intent(inout) :: manager |
| 455 | integer, intent(in) :: server_index |
| 456 | type(lsp_message_t), intent(in) :: msg |
| 457 | procedure(response_callback), optional :: callback |
| 458 | character(len=:), allocatable :: json_msg |
| 459 | |
| 460 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 461 | |
| 462 | if (.not. manager%servers(server_index)%initialized .and. & |
| 463 | .not. manager%servers(server_index)%initializing) return |
| 464 | |
| 465 | json_msg = format_json_rpc(msg) |
| 466 | call send_raw_message(manager%servers(server_index), json_msg) |
| 467 | |
| 468 | ! Track request and register callback |
| 469 | call track_request(manager%servers(server_index), msg%id) |
| 470 | |
| 471 | if (present(callback)) then |
| 472 | call register_callback(manager, msg%id, callback) |
| 473 | end if |
| 474 | end subroutine send_request |
| 475 | |
| 476 | subroutine send_notification(server, msg) |
| 477 | type(lsp_server_t), intent(inout) :: server |
| 478 | type(lsp_message_t), intent(in) :: msg |
| 479 | character(len=:), allocatable :: json_msg |
| 480 | |
| 481 | if (.not. server%initialized .and. .not. server%initializing) return |
| 482 | |
| 483 | json_msg = format_json_rpc(msg) |
| 484 | call send_raw_message(server, json_msg) |
| 485 | end subroutine send_notification |
| 486 | |
| 487 | subroutine send_raw_message(server, message) |
| 488 | type(lsp_server_t), intent(inout) :: server |
| 489 | character(len=*), intent(in) :: message |
| 490 | integer :: result |
| 491 | |
| 492 | if (.not. c_associated(server%handle)) return |
| 493 | |
| 494 | result = lsp_send_message_f(server%handle, message//c_null_char, len(message)) |
| 495 | |
| 496 | if (result < 0) then |
| 497 | write(error_unit, '(a)') "Failed to send message to LSP server" |
| 498 | end if |
| 499 | end subroutine send_raw_message |
| 500 | |
| 501 | subroutine process_server_messages(manager) |
| 502 | type(lsp_manager_t), intent(inout) :: manager |
| 503 | integer :: i |
| 504 | |
| 505 | do i = 1, manager%num_servers |
| 506 | if (c_associated(manager%servers(i)%handle)) then |
| 507 | call process_server_output(manager, manager%servers(i)) |
| 508 | end if |
| 509 | end do |
| 510 | end subroutine process_server_messages |
| 511 | |
| 512 | subroutine process_server_output(manager, server) |
| 513 | type(lsp_manager_t), intent(inout) :: manager |
| 514 | type(lsp_server_t), intent(inout) :: server |
| 515 | character(len=65536) :: buffer |
| 516 | integer :: bytes_read |
| 517 | type(lsp_message_t) :: msg |
| 518 | |
| 519 | ! Read from server |
| 520 | bytes_read = lsp_read_message_f(server%handle, buffer, len(buffer)) |
| 521 | |
| 522 | if (bytes_read > 0) then |
| 523 | ! Append to buffer |
| 524 | server%read_buffer = server%read_buffer // buffer(1:bytes_read) |
| 525 | |
| 526 | ! Try to parse complete messages |
| 527 | call parse_messages(manager, server) |
| 528 | end if |
| 529 | end subroutine process_server_output |
| 530 | |
| 531 | subroutine parse_messages(manager, server) |
| 532 | type(lsp_manager_t), intent(inout) :: manager |
| 533 | type(lsp_server_t), intent(inout) :: server |
| 534 | integer :: content_length, header_end, message_end |
| 535 | character(len=:), allocatable :: message |
| 536 | type(lsp_message_t) :: msg |
| 537 | |
| 538 | do |
| 539 | ! Look for Content-Length header |
| 540 | content_length = extract_content_length(server%read_buffer) |
| 541 | if (content_length <= 0) exit |
| 542 | |
| 543 | ! Find where content starts |
| 544 | header_end = index(server%read_buffer, char(13)//char(10)//char(13)//char(10)) |
| 545 | if (header_end <= 0) exit |
| 546 | |
| 547 | ! Check if we have the complete message |
| 548 | message_end = header_end + 3 + content_length |
| 549 | if (len(server%read_buffer) < message_end) exit |
| 550 | |
| 551 | ! Extract and parse message |
| 552 | message = server%read_buffer(1:message_end) |
| 553 | msg = parse_lsp_message(message) |
| 554 | |
| 555 | ! Handle the message |
| 556 | call handle_message(manager, server, msg) |
| 557 | |
| 558 | ! Remove from buffer |
| 559 | server%read_buffer = server%read_buffer(message_end+1:) |
| 560 | end do |
| 561 | end subroutine parse_messages |
| 562 | |
| 563 | function extract_content_length(buffer) result(length) |
| 564 | character(len=*), intent(in) :: buffer |
| 565 | integer :: length |
| 566 | integer :: pos, end_pos |
| 567 | character(len=32) :: len_str |
| 568 | |
| 569 | length = -1 |
| 570 | |
| 571 | pos = index(buffer, "Content-Length:") |
| 572 | if (pos <= 0) return |
| 573 | |
| 574 | pos = pos + 15 ! Skip "Content-Length:" |
| 575 | |
| 576 | ! Find end of line |
| 577 | end_pos = index(buffer(pos:), char(13)) |
| 578 | if (end_pos <= 0) return |
| 579 | |
| 580 | len_str = adjustl(buffer(pos:pos+end_pos-2)) |
| 581 | read(len_str, '(i10)', iostat=pos) length |
| 582 | if (pos /= 0) length = -1 |
| 583 | end function extract_content_length |
| 584 | |
| 585 | subroutine handle_message(manager, server, msg) |
| 586 | type(lsp_manager_t), intent(inout) :: manager |
| 587 | type(lsp_server_t), intent(inout) :: server |
| 588 | type(lsp_message_t), intent(in) :: msg |
| 589 | |
| 590 | if (msg%is_response) then |
| 591 | call handle_response(manager, server, msg) |
| 592 | else if (msg%is_notification) then |
| 593 | call handle_notification(manager, server, msg) |
| 594 | else if (msg%is_request) then |
| 595 | call handle_request(manager, server, msg) |
| 596 | end if |
| 597 | end subroutine handle_message |
| 598 | |
| 599 | subroutine handle_response(manager, server, msg) |
| 600 | type(lsp_manager_t), intent(inout) :: manager |
| 601 | type(lsp_server_t), intent(inout) :: server |
| 602 | type(lsp_message_t), intent(in) :: msg |
| 603 | integer :: i |
| 604 | |
| 605 | ! Remove from pending requests |
| 606 | call untrack_request(server, msg%id) |
| 607 | |
| 608 | ! Special handling for initialization response |
| 609 | if (server%initializing .and. msg%id == server%init_request_id) then |
| 610 | call handle_initialize_response(server, msg) |
| 611 | return |
| 612 | end if |
| 613 | |
| 614 | ! Find and call registered callback |
| 615 | do i = 1, manager%num_callbacks |
| 616 | if (manager%callbacks(i)%request_id == msg%id) then |
| 617 | if (associated(manager%callbacks(i)%callback)) then |
| 618 | call manager%callbacks(i)%callback(msg%id, msg) |
| 619 | end if |
| 620 | ! Remove callback |
| 621 | call remove_callback(manager, i) |
| 622 | exit |
| 623 | end if |
| 624 | end do |
| 625 | end subroutine handle_response |
| 626 | |
| 627 | subroutine handle_initialize_response(server, msg) |
| 628 | type(lsp_server_t), intent(inout) :: server |
| 629 | type(lsp_message_t), intent(in) :: msg |
| 630 | type(json_value_t) :: capabilities |
| 631 | type(lsp_message_t) :: initialized_msg |
| 632 | |
| 633 | ! Parse server capabilities |
| 634 | capabilities = json_get_object(msg%result, "capabilities") |
| 635 | |
| 636 | ! Check what the server supports |
| 637 | if (json_has_key(capabilities, "completionProvider")) then |
| 638 | server%supports_completion = .true. |
| 639 | end if |
| 640 | |
| 641 | if (json_has_key(capabilities, "hoverProvider")) then |
| 642 | server%supports_hover = .true. |
| 643 | end if |
| 644 | |
| 645 | if (json_has_key(capabilities, "definitionProvider")) then |
| 646 | server%supports_definition = .true. |
| 647 | end if |
| 648 | |
| 649 | if (json_has_key(capabilities, "referencesProvider")) then |
| 650 | server%supports_references = .true. |
| 651 | end if |
| 652 | |
| 653 | if (json_has_key(capabilities, "codeActionProvider")) then |
| 654 | server%supports_code_actions = .true. |
| 655 | end if |
| 656 | |
| 657 | if (json_has_key(capabilities, "documentSymbolProvider")) then |
| 658 | server%supports_document_symbols = .true. |
| 659 | end if |
| 660 | |
| 661 | if (json_has_key(capabilities, "workspaceSymbolProvider")) then |
| 662 | server%supports_workspace_symbols = .true. |
| 663 | end if |
| 664 | |
| 665 | if (json_has_key(capabilities, "documentFormattingProvider")) then |
| 666 | server%supports_formatting = .true. |
| 667 | end if |
| 668 | |
| 669 | if (json_has_key(capabilities, "renameProvider")) then |
| 670 | server%supports_rename = .true. |
| 671 | end if |
| 672 | |
| 673 | if (json_has_key(capabilities, "codeActionProvider")) then |
| 674 | server%supports_code_actions = .true. |
| 675 | end if |
| 676 | |
| 677 | ! Send initialized notification |
| 678 | initialized_msg = create_initialized_notification() |
| 679 | call send_notification(server, initialized_msg) |
| 680 | |
| 681 | server%initialized = .true. |
| 682 | server%initializing = .false. |
| 683 | |
| 684 | ! Send all queued didOpen notifications |
| 685 | if (allocated(server%pending_didopens) .and. server%num_pending_didopens > 0) then |
| 686 | block |
| 687 | integer :: i |
| 688 | type(lsp_message_t) :: didopen_msg |
| 689 | character(len=:), allocatable :: lang, file_uri |
| 690 | |
| 691 | do i = 1, server%num_pending_didopens |
| 692 | if (allocated(server%pending_didopens(i)%filename) .and. & |
| 693 | allocated(server%pending_didopens(i)%content)) then |
| 694 | |
| 695 | lang = get_language_for_file(server%pending_didopens(i)%filename) |
| 696 | file_uri = filename_to_uri(server%pending_didopens(i)%filename) |
| 697 | didopen_msg = create_did_open_notification( & |
| 698 | file_uri, lang, 1, & |
| 699 | server%pending_didopens(i)%content) |
| 700 | call send_notification(server, didopen_msg) |
| 701 | end if |
| 702 | end do |
| 703 | |
| 704 | ! Clear the queue |
| 705 | deallocate(server%pending_didopens) |
| 706 | server%num_pending_didopens = 0 |
| 707 | end block |
| 708 | end if |
| 709 | end subroutine handle_initialize_response |
| 710 | |
| 711 | subroutine handle_notification(manager, server, msg) |
| 712 | type(lsp_manager_t), intent(inout) :: manager |
| 713 | type(lsp_server_t), intent(inout) :: server |
| 714 | type(lsp_message_t), intent(in) :: msg |
| 715 | integer :: srv_idx, i |
| 716 | |
| 717 | ! Find the server index for this server |
| 718 | srv_idx = 0 |
| 719 | do i = 1, manager%num_servers |
| 720 | if (allocated(manager%servers(i)%name) .and. allocated(server%name)) then |
| 721 | if (manager%servers(i)%name == server%name .and. & |
| 722 | manager%servers(i)%root_path == server%root_path) then |
| 723 | srv_idx = i |
| 724 | exit |
| 725 | end if |
| 726 | end if |
| 727 | end do |
| 728 | |
| 729 | select case(msg%method) |
| 730 | case("textDocument/publishDiagnostics") |
| 731 | ! Forward to diagnostics handler if set (with server index) |
| 732 | if (associated(manager%diagnostics_handler)) then |
| 733 | call manager%diagnostics_handler(msg, srv_idx) |
| 734 | end if |
| 735 | case("window/showMessage") |
| 736 | ! TODO: Show message to user |
| 737 | case("window/logMessage") |
| 738 | ! TODO: Log message |
| 739 | case default |
| 740 | ! Unknown notification |
| 741 | end select |
| 742 | end subroutine handle_notification |
| 743 | |
| 744 | subroutine handle_request(manager, server, msg) |
| 745 | type(lsp_manager_t), intent(inout) :: manager |
| 746 | type(lsp_server_t), intent(inout) :: server |
| 747 | type(lsp_message_t), intent(in) :: msg |
| 748 | |
| 749 | ! Servers can send requests too (like workspace/configuration) |
| 750 | ! TODO: Handle server requests |
| 751 | end subroutine handle_request |
| 752 | |
| 753 | subroutine track_request(server, request_id) |
| 754 | type(lsp_server_t), intent(inout) :: server |
| 755 | integer, intent(in) :: request_id |
| 756 | |
| 757 | if (server%num_pending < size(server%pending_requests)) then |
| 758 | server%num_pending = server%num_pending + 1 |
| 759 | server%pending_requests(server%num_pending) = request_id |
| 760 | end if |
| 761 | end subroutine track_request |
| 762 | |
| 763 | subroutine untrack_request(server, request_id) |
| 764 | type(lsp_server_t), intent(inout) :: server |
| 765 | integer, intent(in) :: request_id |
| 766 | integer :: i, j |
| 767 | |
| 768 | do i = 1, server%num_pending |
| 769 | if (server%pending_requests(i) == request_id) then |
| 770 | ! Shift remaining requests |
| 771 | do j = i, server%num_pending - 1 |
| 772 | server%pending_requests(j) = server%pending_requests(j + 1) |
| 773 | end do |
| 774 | server%num_pending = server%num_pending - 1 |
| 775 | exit |
| 776 | end if |
| 777 | end do |
| 778 | end subroutine untrack_request |
| 779 | |
| 780 | subroutine register_callback(manager, request_id, callback) |
| 781 | type(lsp_manager_t), intent(inout) :: manager |
| 782 | integer, intent(in) :: request_id |
| 783 | procedure(response_callback) :: callback |
| 784 | type(callback_entry_t), allocatable :: new_callbacks(:) |
| 785 | |
| 786 | allocate(new_callbacks(manager%num_callbacks + 1)) |
| 787 | |
| 788 | if (manager%num_callbacks > 0) then |
| 789 | new_callbacks(1:manager%num_callbacks) = manager%callbacks |
| 790 | end if |
| 791 | |
| 792 | new_callbacks(manager%num_callbacks + 1)%request_id = request_id |
| 793 | new_callbacks(manager%num_callbacks + 1)%callback => callback |
| 794 | |
| 795 | if (allocated(manager%callbacks)) deallocate(manager%callbacks) |
| 796 | allocate(manager%callbacks(size(new_callbacks))) |
| 797 | manager%callbacks = new_callbacks |
| 798 | manager%num_callbacks = manager%num_callbacks + 1 |
| 799 | end subroutine register_callback |
| 800 | |
| 801 | subroutine remove_callback(manager, index) |
| 802 | type(lsp_manager_t), intent(inout) :: manager |
| 803 | integer, intent(in) :: index |
| 804 | integer :: i |
| 805 | |
| 806 | if (index < 1 .or. index > manager%num_callbacks) return |
| 807 | |
| 808 | ! Shift remaining callbacks |
| 809 | do i = index, manager%num_callbacks - 1 |
| 810 | manager%callbacks(i) = manager%callbacks(i + 1) |
| 811 | end do |
| 812 | |
| 813 | manager%num_callbacks = manager%num_callbacks - 1 |
| 814 | end subroutine remove_callback |
| 815 | |
| 816 | ! Helper to get language from filename |
| 817 | function get_language_for_file(filename) result(language) |
| 818 | character(len=*), intent(in) :: filename |
| 819 | character(len=:), allocatable :: language |
| 820 | integer :: dot_pos |
| 821 | |
| 822 | ! Find last dot in filename |
| 823 | dot_pos = index(filename, '.', back=.true.) |
| 824 | if (dot_pos == 0) then |
| 825 | language = "" |
| 826 | return |
| 827 | end if |
| 828 | |
| 829 | ! Match extension to language |
| 830 | select case(filename(dot_pos:)) |
| 831 | case('.py') |
| 832 | language = "python" |
| 833 | case('.rs') |
| 834 | language = "rust" |
| 835 | case('.c', '.h') |
| 836 | language = "c" |
| 837 | case('.cpp', '.cc', '.cxx', '.hpp', '.hxx', '.C', '.H') |
| 838 | language = "cpp" |
| 839 | case('.go') |
| 840 | language = "go" |
| 841 | case('.ts', '.tsx') |
| 842 | language = "typescript" |
| 843 | case('.js', '.jsx') |
| 844 | language = "javascript" |
| 845 | case('.f90', '.f95', '.f03', '.f08', '.F90', '.F95', '.F03', '.F08') |
| 846 | language = "fortran" |
| 847 | case('.java') |
| 848 | language = "java" |
| 849 | case('.rb') |
| 850 | language = "ruby" |
| 851 | case('.lua') |
| 852 | language = "lua" |
| 853 | case default |
| 854 | language = "" |
| 855 | end select |
| 856 | end function get_language_for_file |
| 857 | |
| 858 | ! Start LSP server for a file if needed |
| 859 | function start_lsp_for_file(manager, filename) result(server_index) |
| 860 | type(lsp_manager_t), intent(inout) :: manager |
| 861 | character(len=*), intent(in) :: filename |
| 862 | integer :: server_index |
| 863 | character(len=:), allocatable :: language |
| 864 | character(len=256) :: workspace_path |
| 865 | integer :: slash_pos |
| 866 | |
| 867 | server_index = 0 |
| 868 | |
| 869 | ! Get language from file extension |
| 870 | language = get_language_for_file(filename) |
| 871 | if (language == "") return |
| 872 | |
| 873 | ! Extract workspace path from filename (directory containing file) |
| 874 | slash_pos = index(filename, '/', back=.true.) |
| 875 | if (slash_pos > 0) then |
| 876 | workspace_path = filename(1:slash_pos-1) |
| 877 | else |
| 878 | workspace_path = "." |
| 879 | end if |
| 880 | |
| 881 | ! Get or start server for this language |
| 882 | server_index = get_or_start_server(manager, language, trim(workspace_path)) |
| 883 | end function start_lsp_for_file |
| 884 | |
| 885 | ! Start ALL LSP servers that match a file (multi-server support) |
| 886 | subroutine start_all_lsp_servers_for_file(manager, filename, server_indices, num_servers) |
| 887 | type(lsp_manager_t), intent(inout) :: manager |
| 888 | character(len=*), intent(in) :: filename |
| 889 | integer, allocatable, intent(out) :: server_indices(:) |
| 890 | integer, intent(out) :: num_servers |
| 891 | character(len=:), allocatable :: language |
| 892 | character(len=256) :: workspace_path |
| 893 | integer :: slash_pos, i, idx |
| 894 | integer :: temp_indices(20) ! Max 20 servers per file |
| 895 | |
| 896 | num_servers = 0 |
| 897 | allocate(server_indices(0)) |
| 898 | |
| 899 | ! Get language from file extension |
| 900 | language = get_language_for_file(filename) |
| 901 | if (language == "") return |
| 902 | |
| 903 | ! Extract workspace path from filename |
| 904 | slash_pos = index(filename, '/', back=.true.) |
| 905 | if (slash_pos > 0) then |
| 906 | workspace_path = filename(1:slash_pos-1) |
| 907 | else |
| 908 | workspace_path = "." |
| 909 | end if |
| 910 | |
| 911 | ! Find ALL configs that match this language and start servers |
| 912 | do i = 1, manager%num_configs |
| 913 | if (manager%configs(i)%language == language) then |
| 914 | ! Start or get server for this config |
| 915 | idx = get_or_start_server_by_config(manager, i, trim(workspace_path)) |
| 916 | if (idx > 0 .and. num_servers < 20) then |
| 917 | num_servers = num_servers + 1 |
| 918 | temp_indices(num_servers) = idx |
| 919 | end if |
| 920 | end if |
| 921 | end do |
| 922 | |
| 923 | ! Copy to output array |
| 924 | if (num_servers > 0) then |
| 925 | deallocate(server_indices) |
| 926 | allocate(server_indices(num_servers)) |
| 927 | server_indices = temp_indices(1:num_servers) |
| 928 | end if |
| 929 | end subroutine start_all_lsp_servers_for_file |
| 930 | |
| 931 | ! Get or start server for a specific config index |
| 932 | function get_or_start_server_by_config(manager, config_index, root_path) result(server_index) |
| 933 | type(lsp_manager_t), intent(inout) :: manager |
| 934 | integer, intent(in) :: config_index |
| 935 | character(len=*), intent(in) :: root_path |
| 936 | integer :: server_index |
| 937 | integer :: i |
| 938 | |
| 939 | server_index = 0 |
| 940 | if (config_index < 1 .or. config_index > manager%num_configs) return |
| 941 | |
| 942 | ! Check if server already exists for this config and root |
| 943 | do i = 1, manager%num_servers |
| 944 | if (manager%servers(i)%config_index == config_index .and. & |
| 945 | manager%servers(i)%root_path == root_path) then |
| 946 | server_index = i |
| 947 | return |
| 948 | end if |
| 949 | end do |
| 950 | |
| 951 | ! Start new server |
| 952 | server_index = start_new_server_from_config(manager, config_index, root_path) |
| 953 | end function get_or_start_server_by_config |
| 954 | |
| 955 | ! Start a new server from a specific config |
| 956 | function start_new_server_from_config(manager, config_index, root_path) result(server_index) |
| 957 | type(lsp_manager_t), intent(inout) :: manager |
| 958 | integer, intent(in) :: config_index |
| 959 | character(len=*), intent(in) :: root_path |
| 960 | integer :: server_index |
| 961 | type(lsp_server_t), allocatable :: new_servers(:) |
| 962 | character(len=:), allocatable :: command |
| 963 | |
| 964 | server_index = 0 |
| 965 | if (config_index < 1 .or. config_index > manager%num_configs) return |
| 966 | |
| 967 | command = manager%configs(config_index)%command |
| 968 | |
| 969 | ! Expand server array |
| 970 | allocate(new_servers(manager%num_servers + 1)) |
| 971 | if (manager%num_servers > 0) then |
| 972 | new_servers(1:manager%num_servers) = manager%servers |
| 973 | end if |
| 974 | |
| 975 | ! Initialize new server |
| 976 | new_servers(manager%num_servers + 1)%language = manager%configs(config_index)%language |
| 977 | new_servers(manager%num_servers + 1)%name = manager%configs(config_index)%name |
| 978 | new_servers(manager%num_servers + 1)%command = command |
| 979 | new_servers(manager%num_servers + 1)%root_path = root_path |
| 980 | new_servers(manager%num_servers + 1)%config_index = config_index |
| 981 | new_servers(manager%num_servers + 1)%initialized = .false. |
| 982 | new_servers(manager%num_servers + 1)%initializing = .false. |
| 983 | allocate(new_servers(manager%num_servers + 1)%pending_requests(100)) |
| 984 | new_servers(manager%num_servers + 1)%num_pending = 0 |
| 985 | new_servers(manager%num_servers + 1)%read_buffer = "" |
| 986 | |
| 987 | ! Start the server process |
| 988 | call lsp_start_server_f(command//c_null_char, len(command), & |
| 989 | new_servers(manager%num_servers + 1)%handle) |
| 990 | |
| 991 | if (c_associated(new_servers(manager%num_servers + 1)%handle)) then |
| 992 | new_servers(manager%num_servers + 1)%process_id = & |
| 993 | lsp_get_pid_f(new_servers(manager%num_servers + 1)%handle) |
| 994 | |
| 995 | deallocate(manager%servers) |
| 996 | manager%servers = new_servers |
| 997 | manager%num_servers = manager%num_servers + 1 |
| 998 | server_index = manager%num_servers |
| 999 | |
| 1000 | ! Send initialization request |
| 1001 | call initialize_server(manager%servers(server_index)) |
| 1002 | else |
| 1003 | write(error_unit, '(a,a)') "Failed to start LSP server: ", command |
| 1004 | end if |
| 1005 | end function start_new_server_from_config |
| 1006 | |
| 1007 | ! Get the first server from a list of indices that has a specific capability |
| 1008 | function get_server_with_capability(manager, server_indices, num_servers, capability) result(server_index) |
| 1009 | type(lsp_manager_t), intent(in) :: manager |
| 1010 | integer, intent(in) :: server_indices(:) |
| 1011 | integer, intent(in) :: num_servers |
| 1012 | integer, intent(in) :: capability |
| 1013 | integer :: server_index |
| 1014 | integer :: i, cfg_idx |
| 1015 | |
| 1016 | server_index = 0 |
| 1017 | |
| 1018 | do i = 1, num_servers |
| 1019 | if (server_indices(i) > 0 .and. server_indices(i) <= manager%num_servers) then |
| 1020 | cfg_idx = manager%servers(server_indices(i))%config_index |
| 1021 | if (cfg_idx > 0 .and. cfg_idx <= manager%num_configs) then |
| 1022 | if (manager%configs(cfg_idx)%capabilities(capability)) then |
| 1023 | server_index = server_indices(i) |
| 1024 | return |
| 1025 | end if |
| 1026 | end if |
| 1027 | end if |
| 1028 | end do |
| 1029 | end function get_server_with_capability |
| 1030 | |
| 1031 | ! Send textDocument/didOpen notification |
| 1032 | subroutine notify_file_opened(manager, server_index, filename, content) |
| 1033 | use lsp_protocol_module, only: create_did_open_notification |
| 1034 | type(lsp_manager_t), intent(inout) :: manager |
| 1035 | integer, intent(in) :: server_index |
| 1036 | character(len=*), intent(in) :: filename |
| 1037 | character(len=*), intent(in) :: content |
| 1038 | type(lsp_message_t) :: msg |
| 1039 | character(len=:), allocatable :: language |
| 1040 | type(pending_didopen_t), allocatable :: temp_pending(:) |
| 1041 | integer :: i |
| 1042 | |
| 1043 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1044 | |
| 1045 | ! If server not initialized yet, queue the notification |
| 1046 | if (.not. manager%servers(server_index)%initialized) then |
| 1047 | ! Add to pending queue |
| 1048 | if (allocated(manager%servers(server_index)%pending_didopens)) then |
| 1049 | ! Grow array |
| 1050 | allocate(temp_pending(manager%servers(server_index)%num_pending_didopens + 1)) |
| 1051 | do i = 1, manager%servers(server_index)%num_pending_didopens |
| 1052 | temp_pending(i) = manager%servers(server_index)%pending_didopens(i) |
| 1053 | end do |
| 1054 | deallocate(manager%servers(server_index)%pending_didopens) |
| 1055 | allocate(manager%servers(server_index)%pending_didopens(size(temp_pending))) |
| 1056 | manager%servers(server_index)%pending_didopens = temp_pending |
| 1057 | deallocate(temp_pending) |
| 1058 | else |
| 1059 | allocate(manager%servers(server_index)%pending_didopens(1)) |
| 1060 | end if |
| 1061 | |
| 1062 | manager%servers(server_index)%num_pending_didopens = & |
| 1063 | manager%servers(server_index)%num_pending_didopens + 1 |
| 1064 | |
| 1065 | ! Store filename and content |
| 1066 | allocate(character(len=len(filename)) :: & |
| 1067 | manager%servers(server_index)%pending_didopens( & |
| 1068 | manager%servers(server_index)%num_pending_didopens)%filename) |
| 1069 | manager%servers(server_index)%pending_didopens( & |
| 1070 | manager%servers(server_index)%num_pending_didopens)%filename = filename |
| 1071 | |
| 1072 | allocate(character(len=len(content)) :: & |
| 1073 | manager%servers(server_index)%pending_didopens( & |
| 1074 | manager%servers(server_index)%num_pending_didopens)%content) |
| 1075 | manager%servers(server_index)%pending_didopens( & |
| 1076 | manager%servers(server_index)%num_pending_didopens)%content = content |
| 1077 | |
| 1078 | return |
| 1079 | end if |
| 1080 | |
| 1081 | ! Server is ready, send immediately |
| 1082 | language = get_language_for_file(filename) |
| 1083 | block |
| 1084 | character(len=:), allocatable :: file_uri |
| 1085 | file_uri = filename_to_uri(filename) |
| 1086 | msg = create_did_open_notification(file_uri, language, 1, content) |
| 1087 | end block |
| 1088 | |
| 1089 | call send_notification(manager%servers(server_index), msg) |
| 1090 | end subroutine notify_file_opened |
| 1091 | |
| 1092 | ! Send textDocument/didChange notification |
| 1093 | subroutine notify_file_changed(manager, server_index, filename, content, version) |
| 1094 | use lsp_protocol_module, only: create_did_change_notification |
| 1095 | type(lsp_manager_t), intent(inout) :: manager |
| 1096 | integer, intent(in) :: server_index |
| 1097 | character(len=*), intent(in) :: filename |
| 1098 | character(len=*), intent(in) :: content |
| 1099 | integer, intent(in), optional :: version |
| 1100 | type(lsp_message_t) :: msg |
| 1101 | integer :: doc_version |
| 1102 | integer :: debug_unit |
| 1103 | |
| 1104 | ! Debug logging |
| 1105 | open(newunit=debug_unit, file='/tmp/fac_didchange_debug.log', status='unknown', & |
| 1106 | position='append', action='write') |
| 1107 | write(debug_unit, '(A,I2,A)') 'notify_file_changed called for server ', server_index, ':' |
| 1108 | write(debug_unit, '(A,A)') ' URI: ', trim(filename) |
| 1109 | write(debug_unit, '(A,I8)') ' Content length: ', len(content) |
| 1110 | write(debug_unit, '(A)') '---' |
| 1111 | close(debug_unit) |
| 1112 | |
| 1113 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1114 | if (.not. manager%servers(server_index)%initialized) return |
| 1115 | |
| 1116 | ! Use provided version or default to 1 |
| 1117 | doc_version = 1 |
| 1118 | if (present(version)) doc_version = version |
| 1119 | |
| 1120 | msg = create_did_change_notification(filename, doc_version, content) |
| 1121 | call send_notification(manager%servers(server_index), msg) |
| 1122 | end subroutine notify_file_changed |
| 1123 | |
| 1124 | ! Send textDocument/didSave notification |
| 1125 | subroutine notify_file_saved(manager, server_index, filename, content) |
| 1126 | use lsp_protocol_module, only: create_did_save_notification |
| 1127 | type(lsp_manager_t), intent(inout) :: manager |
| 1128 | integer, intent(in) :: server_index |
| 1129 | character(len=*), intent(in) :: filename |
| 1130 | character(len=*), intent(in), optional :: content |
| 1131 | type(lsp_message_t) :: msg |
| 1132 | character(len=:), allocatable :: file_uri |
| 1133 | |
| 1134 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1135 | if (.not. manager%servers(server_index)%initialized) return |
| 1136 | |
| 1137 | ! Convert filename to URI |
| 1138 | file_uri = filename_to_uri(filename) |
| 1139 | |
| 1140 | ! Create and send the notification |
| 1141 | if (present(content)) then |
| 1142 | msg = create_did_save_notification(file_uri, content) |
| 1143 | else |
| 1144 | msg = create_did_save_notification(file_uri) |
| 1145 | end if |
| 1146 | |
| 1147 | call send_notification(manager%servers(server_index), msg) |
| 1148 | end subroutine notify_file_saved |
| 1149 | |
| 1150 | ! Send textDocument/didClose notification |
| 1151 | subroutine notify_file_closed(manager, server_index, filename) |
| 1152 | use lsp_protocol_module, only: create_did_close_notification |
| 1153 | type(lsp_manager_t), intent(inout) :: manager |
| 1154 | integer, intent(in) :: server_index |
| 1155 | character(len=*), intent(in) :: filename |
| 1156 | type(lsp_message_t) :: msg |
| 1157 | |
| 1158 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1159 | if (.not. manager%servers(server_index)%initialized) return |
| 1160 | |
| 1161 | msg = create_did_close_notification(filename) |
| 1162 | call send_notification(manager%servers(server_index), msg) |
| 1163 | end subroutine notify_file_closed |
| 1164 | |
| 1165 | ! Request code completion at cursor position |
| 1166 | function request_completion(manager, server_index, filename, line, character, callback) result(request_id) |
| 1167 | use lsp_protocol_module, only: create_completion_request |
| 1168 | type(lsp_manager_t), intent(inout) :: manager |
| 1169 | integer, intent(in) :: server_index |
| 1170 | character(len=*), intent(in) :: filename |
| 1171 | integer, intent(in) :: line, character ! 0-based LSP positions |
| 1172 | procedure(response_callback), optional :: callback |
| 1173 | integer :: request_id |
| 1174 | type(lsp_message_t) :: msg |
| 1175 | character(len=:), allocatable :: uri |
| 1176 | |
| 1177 | request_id = -1 |
| 1178 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1179 | if (.not. manager%servers(server_index)%initialized) return |
| 1180 | |
| 1181 | ! Convert filename to URI (simple file:// for now) |
| 1182 | uri = filename_to_uri(filename) |
| 1183 | |
| 1184 | msg = create_completion_request(trim(uri), line, character) |
| 1185 | request_id = msg%id |
| 1186 | |
| 1187 | call send_request(manager, server_index, msg, callback) |
| 1188 | end function request_completion |
| 1189 | |
| 1190 | ! Request hover information at cursor position |
| 1191 | function request_hover(manager, server_index, filename, line, character, callback) result(request_id) |
| 1192 | use lsp_protocol_module, only: create_hover_request |
| 1193 | type(lsp_manager_t), intent(inout) :: manager |
| 1194 | integer, intent(in) :: server_index |
| 1195 | character(len=*), intent(in) :: filename |
| 1196 | integer, intent(in) :: line, character ! 0-based LSP positions |
| 1197 | procedure(response_callback), optional :: callback |
| 1198 | integer :: request_id |
| 1199 | type(lsp_message_t) :: msg |
| 1200 | character(len=:), allocatable :: uri |
| 1201 | |
| 1202 | request_id = -1 |
| 1203 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1204 | if (.not. manager%servers(server_index)%initialized) return |
| 1205 | |
| 1206 | ! Convert filename to URI (simple file:// for now) |
| 1207 | uri = filename_to_uri(filename) |
| 1208 | |
| 1209 | msg = create_hover_request(trim(uri), line, character) |
| 1210 | request_id = msg%id |
| 1211 | |
| 1212 | call send_request(manager, server_index, msg, callback) |
| 1213 | end function request_hover |
| 1214 | |
| 1215 | ! Request definition location at cursor position |
| 1216 | function request_definition(manager, server_index, filename, line, character, callback) result(request_id) |
| 1217 | use lsp_protocol_module, only: create_definition_request |
| 1218 | type(lsp_manager_t), intent(inout) :: manager |
| 1219 | integer, intent(in) :: server_index |
| 1220 | character(len=*), intent(in) :: filename |
| 1221 | integer, intent(in) :: line, character ! 0-based LSP positions |
| 1222 | procedure(response_callback), optional :: callback |
| 1223 | integer :: request_id |
| 1224 | type(lsp_message_t) :: msg |
| 1225 | character(len=:), allocatable :: uri |
| 1226 | |
| 1227 | request_id = -1 |
| 1228 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1229 | if (.not. manager%servers(server_index)%initialized) return |
| 1230 | |
| 1231 | uri = filename_to_uri(filename) |
| 1232 | msg = create_definition_request(uri, line, character) |
| 1233 | request_id = msg%id |
| 1234 | call send_request(manager, server_index, msg, callback) |
| 1235 | end function request_definition |
| 1236 | |
| 1237 | ! Request references at cursor position |
| 1238 | function request_references(manager, server_index, filename, line, character, callback) result(request_id) |
| 1239 | use lsp_protocol_module, only: create_references_request |
| 1240 | type(lsp_manager_t), intent(inout) :: manager |
| 1241 | integer, intent(in) :: server_index |
| 1242 | character(len=*), intent(in) :: filename |
| 1243 | integer, intent(in) :: line, character ! 0-based LSP positions |
| 1244 | procedure(response_callback), optional :: callback |
| 1245 | integer :: request_id |
| 1246 | type(lsp_message_t) :: msg |
| 1247 | character(len=:), allocatable :: uri |
| 1248 | |
| 1249 | request_id = -1 |
| 1250 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1251 | if (.not. manager%servers(server_index)%initialized) return |
| 1252 | |
| 1253 | ! Convert filename to URI (simple file:// for now) |
| 1254 | uri = filename_to_uri(filename) |
| 1255 | |
| 1256 | ! Include declaration and references |
| 1257 | msg = create_references_request(uri, line, character, .true.) |
| 1258 | request_id = msg%id |
| 1259 | |
| 1260 | call send_request(manager, server_index, msg, callback) |
| 1261 | end function request_references |
| 1262 | |
| 1263 | ! Request code actions for a range |
| 1264 | function request_code_actions(manager, server_index, filename, start_line, start_char, & |
| 1265 | end_line, end_char, callback, diagnostics_json) result(request_id) |
| 1266 | use lsp_protocol_module, only: create_code_action_request |
| 1267 | use json_module, only: json_create_array, json_value_t |
| 1268 | type(lsp_manager_t), intent(inout) :: manager |
| 1269 | integer, intent(in) :: server_index |
| 1270 | character(len=*), intent(in) :: filename |
| 1271 | integer, intent(in) :: start_line, start_char, end_line, end_char ! 0-based LSP positions |
| 1272 | procedure(response_callback), optional :: callback |
| 1273 | type(json_value_t), intent(in), optional :: diagnostics_json |
| 1274 | integer :: request_id |
| 1275 | type(lsp_message_t) :: msg |
| 1276 | character(len=:), allocatable :: uri |
| 1277 | |
| 1278 | request_id = -1 |
| 1279 | |
| 1280 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1281 | if (.not. manager%servers(server_index)%initialized) return |
| 1282 | |
| 1283 | ! Convert filename to URI |
| 1284 | uri = filename_to_uri(filename) |
| 1285 | |
| 1286 | ! Create code action request with diagnostics context |
| 1287 | if (present(diagnostics_json)) then |
| 1288 | msg = create_code_action_request(uri, start_line, start_char, end_line, end_char, diagnostics_json) |
| 1289 | else |
| 1290 | msg = create_code_action_request(uri, start_line, start_char, end_line, end_char) |
| 1291 | end if |
| 1292 | request_id = msg%id |
| 1293 | |
| 1294 | call send_request(manager, server_index, msg, callback) |
| 1295 | end function request_code_actions |
| 1296 | |
| 1297 | ! Request document symbols |
| 1298 | function request_document_symbols(manager, server_index, filename, callback) result(request_id) |
| 1299 | use lsp_protocol_module, only: create_document_symbols_request |
| 1300 | type(lsp_manager_t), intent(inout) :: manager |
| 1301 | integer, intent(in) :: server_index |
| 1302 | character(len=*), intent(in) :: filename |
| 1303 | procedure(response_callback), optional :: callback |
| 1304 | integer :: request_id |
| 1305 | type(lsp_message_t) :: msg |
| 1306 | character(len=:), allocatable :: uri |
| 1307 | |
| 1308 | request_id = -1 |
| 1309 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1310 | if (.not. manager%servers(server_index)%initialized) return |
| 1311 | |
| 1312 | ! Convert filename to URI |
| 1313 | uri = filename_to_uri(filename) |
| 1314 | |
| 1315 | ! Create document symbols request |
| 1316 | msg = create_document_symbols_request(uri) |
| 1317 | request_id = msg%id |
| 1318 | |
| 1319 | call send_request(manager, server_index, msg, callback) |
| 1320 | end function request_document_symbols |
| 1321 | |
| 1322 | ! Request signature help |
| 1323 | function request_signature_help(manager, server_index, filename, line, character, callback) result(request_id) |
| 1324 | use lsp_protocol_module, only: create_signature_help_request |
| 1325 | type(lsp_manager_t), intent(inout) :: manager |
| 1326 | integer, intent(in) :: server_index |
| 1327 | character(len=*), intent(in) :: filename |
| 1328 | integer, intent(in) :: line, character ! 0-based LSP positions |
| 1329 | procedure(response_callback), optional :: callback |
| 1330 | integer :: request_id |
| 1331 | type(lsp_message_t) :: msg |
| 1332 | character(len=:), allocatable :: uri |
| 1333 | |
| 1334 | request_id = -1 |
| 1335 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1336 | if (.not. manager%servers(server_index)%initialized) return |
| 1337 | |
| 1338 | ! Convert filename to URI |
| 1339 | uri = filename_to_uri(filename) |
| 1340 | |
| 1341 | ! Create signature help request |
| 1342 | msg = create_signature_help_request(uri, line, character) |
| 1343 | request_id = msg%id |
| 1344 | |
| 1345 | call send_request(manager, server_index, msg, callback) |
| 1346 | end function request_signature_help |
| 1347 | |
| 1348 | ! Request formatting |
| 1349 | function request_formatting(manager, server_index, filename, tab_size, insert_spaces, callback) result(request_id) |
| 1350 | use lsp_protocol_module, only: create_formatting_request |
| 1351 | type(lsp_manager_t), intent(inout) :: manager |
| 1352 | integer, intent(in) :: server_index |
| 1353 | character(len=*), intent(in) :: filename |
| 1354 | integer, intent(in) :: tab_size |
| 1355 | logical, intent(in) :: insert_spaces |
| 1356 | procedure(response_callback), optional :: callback |
| 1357 | integer :: request_id |
| 1358 | type(lsp_message_t) :: msg |
| 1359 | character(len=:), allocatable :: uri |
| 1360 | |
| 1361 | request_id = -1 |
| 1362 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1363 | if (.not. manager%servers(server_index)%initialized) return |
| 1364 | |
| 1365 | ! Convert filename to URI |
| 1366 | uri = filename_to_uri(filename) |
| 1367 | |
| 1368 | ! Create formatting request |
| 1369 | msg = create_formatting_request(uri, tab_size, insert_spaces) |
| 1370 | request_id = msg%id |
| 1371 | |
| 1372 | call send_request(manager, server_index, msg, callback) |
| 1373 | end function request_formatting |
| 1374 | |
| 1375 | ! Request rename |
| 1376 | function request_rename(manager, server_index, filename, line, character, new_name, callback) result(request_id) |
| 1377 | use lsp_protocol_module, only: create_rename_request |
| 1378 | type(lsp_manager_t), intent(inout) :: manager |
| 1379 | integer, intent(in) :: server_index |
| 1380 | character(len=*), intent(in) :: filename |
| 1381 | integer, intent(in) :: line, character ! 0-based LSP positions |
| 1382 | character(len=*), intent(in) :: new_name |
| 1383 | procedure(response_callback), optional :: callback |
| 1384 | integer :: request_id |
| 1385 | type(lsp_message_t) :: msg |
| 1386 | character(len=:), allocatable :: uri |
| 1387 | |
| 1388 | request_id = -1 |
| 1389 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1390 | if (.not. manager%servers(server_index)%initialized) return |
| 1391 | |
| 1392 | ! Convert filename to URI |
| 1393 | uri = filename_to_uri(filename) |
| 1394 | |
| 1395 | ! Create rename request |
| 1396 | msg = create_rename_request(uri, line, character, new_name) |
| 1397 | request_id = msg%id |
| 1398 | |
| 1399 | call send_request(manager, server_index, msg, callback) |
| 1400 | end function request_rename |
| 1401 | |
| 1402 | ! Request workspace symbols |
| 1403 | function request_workspace_symbols(manager, server_index, query, callback) result(request_id) |
| 1404 | use lsp_protocol_module, only: create_workspace_symbols_request |
| 1405 | type(lsp_manager_t), intent(inout) :: manager |
| 1406 | integer, intent(in) :: server_index |
| 1407 | character(len=*), intent(in) :: query |
| 1408 | procedure(response_callback), optional :: callback |
| 1409 | integer :: request_id |
| 1410 | type(lsp_message_t) :: msg |
| 1411 | |
| 1412 | request_id = -1 |
| 1413 | if (server_index < 1 .or. server_index > manager%num_servers) return |
| 1414 | if (.not. manager%servers(server_index)%initialized) return |
| 1415 | if (.not. manager%servers(server_index)%supports_workspace_symbols) return |
| 1416 | |
| 1417 | ! Create workspace symbols request |
| 1418 | msg = create_workspace_symbols_request(query) |
| 1419 | request_id = msg%id |
| 1420 | |
| 1421 | call send_request(manager, server_index, msg, callback) |
| 1422 | end function request_workspace_symbols |
| 1423 | |
| 1424 | ! Set the diagnostics notification handler |
| 1425 | subroutine set_diagnostics_handler(manager, handler) |
| 1426 | type(lsp_manager_t), intent(inout) :: manager |
| 1427 | procedure(diagnostics_callback) :: handler |
| 1428 | |
| 1429 | manager%diagnostics_handler => handler |
| 1430 | end subroutine set_diagnostics_handler |
| 1431 | |
| 1432 | end module lsp_server_manager_module |