├── .gitignore ├── COPYING ├── README.md ├── basic.pas ├── capabilities.pas ├── completion.pas ├── general.pas ├── lsp.pas ├── options.pas ├── pasls.lpi ├── pasls.lpr └── synchronization.pas /.gitignore: -------------------------------------------------------------------------------- 1 | /backup/ 2 | /lib/ 3 | *.lps 4 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Pascal Language Server 2 | 3 | An [LSP](https://microsoft.github.io/language-server-protocol/) server 4 | implementation for Pascal variants that are supported by [Free 5 | Pascal](https://www.freepascal.org/), including Object Pascal. It uses 6 | [CodeTools](https://wiki.lazarus.freepascal.org/Codetools) from 7 | Lazarus as backend. 8 | 9 | ## Features 10 | 11 | The implementation is still incomplete and unstable. Currently only 12 | code completion is supported. Any help and feedback is welcome. 13 | 14 | ## Clients 15 | 16 | To use the server from `lsp-mode` in Emacs, install the separate 17 | [`lsp-pascal`](https://github.com/arjanadriaanse/lsp-pascal) module. 18 | 19 | ## Building 20 | 21 | Requires Free Pascal Compiler version 3.2.0 and Lazarus version 2.0.8, 22 | open the project file in Lazarus or use the commandline: 23 | 24 | ```sh 25 | lazbuild pasls.lpi 26 | ``` 27 | -------------------------------------------------------------------------------- /basic.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // . 19 | 20 | unit basic; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes, SysUtils; 28 | 29 | type 30 | 31 | { TOptional } 32 | 33 | generic TOptional = class 34 | private 35 | fHasValue: Boolean; 36 | fValue: T; 37 | function GetValue: T; 38 | procedure SetValue(AValue: T); 39 | public 40 | property HasValue: Boolean read fHasValue; 41 | property Value: T read GetValue write SetValue; 42 | procedure Clear; 43 | end; 44 | 45 | { TOptionalVariantBase } 46 | 47 | TOptionalVariantBase = class(specialize TOptional); 48 | 49 | { TOptionalVariant } 50 | 51 | generic TOptionalVariant = class(TOptionalVariantBase) 52 | private 53 | function GetValue: T; 54 | procedure SetValue(AValue: T); 55 | public 56 | constructor Create; 57 | constructor Create(AValue: T); 58 | property Value: T read GetValue write SetValue; 59 | end; 60 | 61 | { TOptionalObjectBase } 62 | 63 | TOptionalObjectBase = class(specialize TOptional) 64 | public 65 | function ValueClass: TClass; virtual; abstract; 66 | end; 67 | 68 | { TOptionalObject } 69 | 70 | generic TOptionalObject = class(TOptionalObjectBase) 71 | private 72 | function GetValue: T; 73 | procedure SetValue(AValue: T); 74 | public 75 | constructor Create; 76 | constructor Create(AValue: T); 77 | function ValueClass: TClass; override; 78 | property Value: T read GetValue write SetValue; 79 | end; 80 | 81 | { TGenericCollection } 82 | 83 | generic TGenericCollection = class(TCollection) 84 | constructor Create; 85 | end; 86 | 87 | { TDocumentUri } 88 | 89 | TDocumentUri = string; 90 | 91 | { TPosition } 92 | 93 | TPosition = class(TPersistent) 94 | private 95 | fLine: Integer; 96 | fCharacter: Integer; 97 | published 98 | // Line position in a document (zero-based). 99 | property line: Integer read fLine write fLine; 100 | // Character offset on a line in a document (zero-based). Assuming 101 | // that the line is represented as a string, the `character` value 102 | // represents the gap between the `character` and `character + 1`. 103 | // 104 | // If the character value is greater than the line length it 105 | // defaults back to the line length. 106 | property character: Integer read fCharacter write fCharacter; 107 | end; 108 | 109 | { TRange } 110 | 111 | TRange = class(TPersistent) 112 | private 113 | fStart: TPosition; 114 | fEnd: TPosition; 115 | published 116 | // The range's start position. 117 | property start: TPosition read fStart write fStart; 118 | // The range's end position. 119 | property end_: TPosition read fEnd write fEnd; 120 | end; 121 | 122 | { TLocation } 123 | 124 | TLocation = class(TPersistent) 125 | private 126 | fUri: TDocumentUri; 127 | fRange: TRange; 128 | published 129 | property uri: TDocumentUri read fUri write fUri; 130 | property range: TRange read fRange write fRange; 131 | end; 132 | 133 | { TLocationLink } 134 | 135 | TLocationLink = class(TPersistent) 136 | private 137 | fOriginSelectionRange: TRange; 138 | fTargetUri: TDocumentUri; 139 | fTargetRange: TRange; 140 | fTargetSelectionRange: TRange; 141 | published 142 | // Span of the origin of this link. 143 | // 144 | // Used as the underlined span for mouse interaction. Defaults to 145 | // the word range at the mouse position. 146 | property originSelectionRange: TRange read fOriginSelectionRange write fOriginSelectionRange; 147 | // The target resource identifier of this link. 148 | property targetUri: TDocumentUri read fTargetUri write fTargetUri; 149 | // The full target range of this link. If the target for example 150 | // is a symbol then target range is the range enclosing this 151 | // symbol not including leading/trailing whitespace but everything 152 | // else like comments. This information is typically used to 153 | // highlight the range in the editor. 154 | property targetRange: TRange read fTargetRange write fTargetRange; 155 | // The range that should be selected and revealed when this link 156 | // is being followed, e.g the name of a function. Must be 157 | // contained by the the `targetRange`. See also 158 | // `DocumentSymbol#range` 159 | property targetSelectionRange: TRange read fTargetSelectionRange write fTargetSelectionRange; 160 | end; 161 | 162 | { TTextDocumentIdentifier } 163 | 164 | TTextDocumentIdentifier = class(TPersistent) 165 | private 166 | fUri: TDocumentUri; 167 | published 168 | property uri: TDocumentUri read fUri write fUri; 169 | end; 170 | 171 | { TVersionedTextDocumentIdentifier } 172 | 173 | TVersionedTextDocumentIdentifier = class(TTextDocumentIdentifier) 174 | private 175 | fVersion: string; 176 | published 177 | // The version number of this document. If a versioned text 178 | // document identifier is sent from the server to the client and 179 | // the file is not open in the editor (the server has not received 180 | // an open notification before) the server can send `null` to 181 | // indicate that the version is known and the content on disk is 182 | // the master (as speced with document content ownership). 183 | // 184 | // The version number of a document will increase after each 185 | // change, including undo/redo. The number doesn't need to be 186 | // consecutive. 187 | property version: string read fVersion write fVersion; 188 | end; 189 | 190 | { TTextEdit } 191 | 192 | TTextEdit = class(TCollectionItem) 193 | private 194 | fRange: TRange; 195 | fNewText: string; 196 | published 197 | // The range of the text document to be manipulated. To insert 198 | // text into a document create a range where start === end. 199 | property range: TRange read fRange write fRange; 200 | // The string to be inserted. For delete operations use an empty 201 | // string. 202 | property newText: string read fNewText write fNewText; 203 | end; 204 | 205 | TTextEdits = specialize TGenericCollection; 206 | 207 | { TTextDocumentEdit } 208 | 209 | TTextDocumentEdit = class(TPersistent) 210 | private 211 | fTextDocument: TVersionedTextDocumentIdentifier; 212 | fEdits: TTextEdits; 213 | published 214 | // The text document to change. 215 | property textDocument: TVersionedTextDocumentIdentifier read fTextDocument write fTextDocument; 216 | // The edits to be applied. 217 | property edits: TTextEdits read fEdits write fEdits; 218 | end; 219 | 220 | { TTextDocumentItem } 221 | 222 | TTextDocumentItem = class(TPersistent) 223 | private 224 | fUri: TDocumentUri; 225 | fLanguageId: string; 226 | fVersion: Integer; 227 | fText: string; 228 | published 229 | // The text document's URI. 230 | property uri: TDocumentUri read fUri write fUri; 231 | // The text document's language identifier. 232 | property languageId: string read fLanguageId write fLanguageId; 233 | // The version number of this document (it will increase after 234 | // each change, including undo/redo). 235 | property version: Integer read fVersion write fVersion; 236 | // The content of the opened text document. 237 | property text: string read fText write fText; 238 | end; 239 | 240 | { TTextDocumentPositionParams } 241 | 242 | TTextDocumentPositionParams = class(TPersistent) 243 | private 244 | fTextDocument: TTextDocumentIdentifier; 245 | fPosition: TPosition; 246 | published 247 | // The text document. 248 | property textDocument: TTextDocumentIdentifier read fTextDocument write fTextDocument; 249 | // The position inside the text document. 250 | property position: TPosition read fPosition write fPosition; 251 | end; 252 | 253 | { TMarkupKind } 254 | 255 | // Describes the content type that a client supports in various 256 | // result literals like `Hover`, `ParameterInfo` or 257 | // `CompletionItem`. 258 | // 259 | // Please note that `MarkupKinds` must not start with a `$`. This 260 | // kinds are reserved for internal usage. 261 | TMarkupKind = string; 262 | 263 | { TMarkupContent } 264 | 265 | TMarkupContent = class(TPersistent) 266 | private 267 | fKind: TMarkupKind; 268 | fValue: string; 269 | published 270 | // The type of the Markup 271 | property kind: TMarkupKind read fKind write fKind; 272 | // The content itself 273 | property value: string read fValue write fValue; 274 | end; 275 | 276 | implementation 277 | 278 | { TOptional } 279 | 280 | function TOptional.GetValue: T; 281 | begin 282 | if fHasValue then Result := fValue 283 | else Exception.Create('no value'); 284 | end; 285 | 286 | procedure TOptional.SetValue(AValue: T); 287 | begin 288 | fValue := AValue; 289 | fHasValue := True; 290 | end; 291 | 292 | procedure TOptional.Clear; 293 | begin 294 | fHasValue := False; 295 | end; 296 | 297 | { TOptionalVariant } 298 | 299 | function TOptionalVariant.GetValue: T; 300 | begin 301 | Result := T(inherited Value); 302 | end; 303 | 304 | procedure TOptionalVariant.SetValue(AValue: T); 305 | begin 306 | inherited Value := AValue; 307 | end; 308 | 309 | constructor TOptionalVariant.Create; 310 | begin 311 | inherited Create; 312 | end; 313 | 314 | constructor TOptionalVariant.Create(AValue: T); 315 | begin 316 | Create; 317 | SetValue(AValue); 318 | end; 319 | 320 | { TOptionalObject } 321 | 322 | function TOptionalObject.GetValue: T; 323 | begin 324 | Result := T(inherited Value); 325 | end; 326 | 327 | procedure TOptionalObject.SetValue(AValue: T); 328 | begin 329 | inherited Value := AValue; 330 | end; 331 | 332 | constructor TOptionalObject.Create; 333 | begin 334 | inherited Create; 335 | end; 336 | 337 | constructor TOptionalObject.Create(AValue: T); 338 | begin 339 | Create; 340 | SetValue(AValue); 341 | end; 342 | 343 | function TOptionalObject.ValueClass: TClass; 344 | begin 345 | Result := T; 346 | end; 347 | 348 | { TGenericCollection } 349 | 350 | constructor TGenericCollection.Create; 351 | begin 352 | inherited Create(T); 353 | end; 354 | 355 | end. 356 | -------------------------------------------------------------------------------- /capabilities.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // . 19 | 20 | unit capabilities; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes, options; 28 | 29 | type 30 | 31 | { TWorkspaceClientCapabilities } 32 | 33 | TWorkspaceClientCapabilities = class(TPersistent) 34 | private 35 | fApplyEdit: Boolean; 36 | published 37 | property applyEdit: Boolean read fApplyEdit write fApplyEdit; 38 | end; 39 | 40 | { TTextDocumentClientCapabilities } 41 | 42 | TTextDocumentClientCapabilities = class(TPersistent) 43 | private 44 | published 45 | end; 46 | 47 | { TClientCapabilities } 48 | 49 | TClientCapabilities = class(TPersistent) 50 | private 51 | fWorkspace: TWorkspaceClientCapabilities; 52 | fTextDocument: TTextDocumentClientCapabilities; 53 | published 54 | property workspace: TWorkspaceClientCapabilities read fWorkspace write fWorkspace; 55 | property textDocument: TTextDocumentClientCapabilities read fTextDocument write fTextDocument; 56 | end; 57 | 58 | { TServerCapabilities } 59 | 60 | TServerCapabilities = class(TPersistent) 61 | private 62 | fTextDocumentSync: TTextDocumentSyncOptions; 63 | fCompletionProvider: TCompletionOptions; 64 | public 65 | constructor Create; 66 | published 67 | property textDocumentSync: TTextDocumentSyncOptions read fTextDocumentSync write fTextDocumentSync; 68 | property completionProvider: TCompletionOptions read fCompletionProvider write fCompletionProvider; 69 | end; 70 | 71 | implementation 72 | 73 | { TServerCapabilities } 74 | 75 | constructor TServerCapabilities.Create; 76 | begin 77 | textDocumentSync := TTextDocumentSyncOptions.Create; 78 | completionProvider := TCompletionOptions.Create; 79 | end; 80 | 81 | end. 82 | 83 | -------------------------------------------------------------------------------- /completion.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // . 19 | 20 | unit completion; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes, URIParser, CodeToolManager, CodeCache, IdentCompletionTool, BasicCodeTools, 28 | lsp, basic; 29 | 30 | type 31 | 32 | { TCompletionTriggerKind } 33 | 34 | // How a completion was triggered 35 | TCompletionTriggerKind = ( 36 | // Completion was triggered by typing an identifier (24x7 code 37 | // complete), manual invocation (e.g Ctrl+Space) or via API. 38 | Invoked = 1, 39 | // Completion was triggered by a trigger character specified by 40 | // the `triggerCharacters` properties of the 41 | // `CompletionRegistrationOptions`. 42 | TriggerCharacter = 2, 43 | // Completion was re-triggered as the current completion list is 44 | // incomplete. 45 | TriggerForIncompleteCompletions = 3); 46 | 47 | { TCompletionContext } 48 | 49 | // Contains additional information about the context in which a 50 | // completion request is triggered. 51 | TCompletionContext = class(TPersistent) 52 | private 53 | fTriggerKind: TCompletionTriggerKind; 54 | fTriggerCharacter: string; 55 | published 56 | // How the completion was triggered. 57 | property triggerKind: TCompletionTriggerKind read fTriggerKind write fTriggerKind; 58 | // The trigger character (a single character) that has trigger 59 | // code complete. Is undefined if `triggerKind !== 60 | // CompletionTriggerKind.TriggerCharacter` 61 | property triggerCharacter: string read fTriggerCharacter write fTriggerCharacter; 62 | end; 63 | 64 | { TCompletionParams } 65 | 66 | TCompletionParams = class(TTextDocumentPositionParams) 67 | private 68 | fContext: TCompletionContext; 69 | published 70 | // The completion context. This is only available if the client 71 | // specifies to send this using 72 | // `ClientCapabilities.textDocument.completion.contextSupport === 73 | // true` 74 | property context: TCompletionContext read fContext write fContext; 75 | end; 76 | 77 | { TInsertTextFormat } 78 | 79 | // Defines whether the insert text in a completion item should be 80 | // interpreted as plain text or a snippet. 81 | TInsertTextFormat = ( 82 | // The primary text to be inserted is treated as a plain string. 83 | PlainText = 1, 84 | // The primary text to be inserted is treated as a snippet. 85 | // 86 | // A snippet can define tab stops and placeholders with `$1`, `$2` 87 | // and `${3:foo}`. `$0` defines the final tab stop, it defaults to 88 | // the end of the snippet. Placeholders with equal identifiers are 89 | // linked, that is typing in one will update others too. 90 | Snippet = 2); 91 | 92 | { TCompletionItemTag } 93 | 94 | // Completion item tags are extra annotations that tweak the 95 | // rendering of a completion item. 96 | // 97 | // @since 3.15.0 98 | TCompletionItemTag = ( 99 | // Render a completion as obsolete, usually using a strike-out. 100 | Deprecated = 1); 101 | 102 | TCompletionItemTags = set of TCompletionItemTag; 103 | 104 | { TCompletionItemKind } 105 | 106 | // The kind of a completion entry. 107 | TCompletionItemKind = ( 108 | TextItem = 1, 109 | MethodItem = 2, 110 | FunctionItem = 3, 111 | ConstructorItem = 4, 112 | FieldItem = 5, 113 | VariableItem = 6, 114 | ClassItem = 7, 115 | InterfaceItem = 8, 116 | ModuleItem = 9, 117 | PropertyItem = 10, 118 | UnitItem = 11, 119 | ValueItem = 12, 120 | EnumItem = 13, 121 | KeywordItem = 14, 122 | SnippetItem = 15, 123 | ColorItem = 16, 124 | FileItem = 17, 125 | ReferenceItem = 18, 126 | FolderItem = 19, 127 | EnumMemberItem = 20, 128 | ConstantItem = 21, 129 | StructItem = 22, 130 | EventItem = 23, 131 | OperatorItem = 24, 132 | TypeParameterItem = 25); 133 | 134 | { TCompletionItem } 135 | 136 | TCompletionItem = class(TCollectionItem) 137 | private 138 | fLabel: string; 139 | fKind: TCompletionItemKind; 140 | fTags: TCompletionItemTags; 141 | fDetail: string; 142 | fDocumentation: TMarkupContent; 143 | fPreselect: Boolean; 144 | fSortText: string; 145 | fFilterText: string; 146 | fInsertText: string; 147 | fInsertTextFormat: TInsertTextFormat; 148 | fTextEdit: TTextEdit; 149 | fAdditionalTextEdits: TTextEdits; 150 | fCommitCharacters: TStrings; 151 | published 152 | // The label of this completion item. By default also the text 153 | // that is inserted when selecting this completion. 154 | property label_: string read fLabel write fLabel; 155 | // The kind of this completion item. Based of the kind an icon is 156 | // chosen by the editor. The standardized set of available values 157 | // is defined in `CompletionItemKind`. 158 | property kind: TCompletionItemKind read fKind write fKind; 159 | // Tags for this completion item. 160 | // 161 | // @since 3.15.0 162 | property tags: TCompletionItemTags read fTags write fTags; 163 | // A human-readable string with additional information about this 164 | // item, like type or symbol information. 165 | property detail: string read fDetail write fDetail; 166 | // A human-readable string that represents a doc-comment. 167 | property documentation: TMarkupContent read fDocumentation write fDocumentation; 168 | // Select this item when showing. 169 | // 170 | // *Note* that only one completion item can be selected and that 171 | // the tool / client decides which item that is. The rule is that 172 | // the *first* item of those that match best is selected. 173 | property preselect: Boolean read fPreselect write fPreselect; 174 | // A string that should be used when comparing this item 175 | // with other items. When `falsy` the label is used. 176 | property sortText: string read fSortText write fSortText; 177 | // A string that should be used when filtering a set of 178 | // completion items. When `falsy` the label is used. 179 | property filterText: string read fFilterText write fFilterText; 180 | // A string that should be inserted into a document when selecting 181 | // this completion. When `falsy` the label is used. 182 | // 183 | // The `insertText` is subject to interpretation by the client 184 | // side. Some tools might not take the string literally. For 185 | // example VS Code when code complete is requested in this example 186 | // `con` and a completion item with an 187 | // `insertText` of `console` is provided it will only insert 188 | // `sole`. Therefore it is recommended to use `textEdit` instead 189 | // since it avoids additional client side interpretation. 190 | property insertText: string read fInsertText write fInsertText; 191 | // The format of the insert text. The format applies to both the 192 | // `insertText` property and the `newText` property of a provided 193 | // `textEdit`. If omitted defaults to 194 | // `InsertTextFormat.PlainText`. 195 | property insertTextFormat: TInsertTextFormat read fInsertTextFormat write fInsertTextFormat; 196 | // An edit which is applied to a document when selecting this 197 | // completion. When an edit is provided the value of `insertText` 198 | // is ignored. 199 | // 200 | // *Note:* The range of the edit must be a single line range and 201 | // it must contain the position at which completion has been 202 | // requested. 203 | property textEdit: TTextEdit read fTextEdit write fTextEdit; 204 | // An optional array of additional text edits that are applied 205 | // when selecting this completion. Edits must not overlap 206 | // (including the same insert position) with the main edit nor 207 | // with themselves. 208 | // 209 | // Additional text edits should be used to change text unrelated 210 | // to the current cursor position (for example adding an import 211 | // statement at the top of the file if the completion item will 212 | // insert an unqualified type). 213 | property additionalTextEdits: TTextEdits read fAdditionalTextEdits write fAdditionalTextEdits; 214 | // An optional set of characters that when pressed while this 215 | // completion is active will accept it first and then type that 216 | // character. *Note* that all commit characters should have 217 | // `length=1` and that superfluous characters will be ignored. 218 | property commitCharacters: TStrings read fCommitCharacters write fCommitCharacters; 219 | end; 220 | 221 | TCompletionItems = specialize TGenericCollection; 222 | 223 | { TCompletionList } 224 | 225 | // Represents a collection of [completion items](#CompletionItem) to 226 | // be presented in the editor. 227 | TCompletionList = class(TPersistent) 228 | private 229 | fIsIncomplete: Boolean; 230 | fItems: TCompletionItems; 231 | published 232 | // This list it not complete. Further typing should result in 233 | // recomputing this list. 234 | property isIncomplete: Boolean read fIsIncomplete write fIsIncomplete; 235 | // The completion items. 236 | property items: TCompletionItems read fItems write fItems; 237 | end; 238 | 239 | { TCompletion } 240 | 241 | TCompletion = class(specialize TLSPRequest) 242 | function Process(var Params: TCompletionParams): TCompletionList; override; 243 | end; 244 | 245 | implementation 246 | 247 | { TCompletion } 248 | 249 | function TCompletion.Process(var Params: TCompletionParams): TCompletionList; 250 | var 251 | URI: TURI; 252 | Code: TCodeBuffer; 253 | X, Y, PStart, PEnd, Count, I: Integer; 254 | Line: string; 255 | Completions: TCompletionItems; 256 | Identifier: TIdentifierListItem; 257 | Completion: TCompletionItem; 258 | begin with Params do 259 | begin 260 | URI := ParseURI(textDocument.uri); 261 | Code := CodeToolBoss.FindFile(URI.Path + URI.Document); 262 | X := position.character; 263 | Y := position.line; 264 | Line := Code.GetLine(Y); 265 | GetIdentStartEndAtPosition(Line, X + 1, PStart, PEnd); 266 | CodeToolBoss.IdentifierList.Prefix := Copy(Line, PStart, PEnd - PStart); 267 | 268 | Completions := TCompletionItems.Create; 269 | if CodeToolBoss.GatherIdentifiers(Code,X + 1,Y + 1) then 270 | begin 271 | Count := CodeToolBoss.IdentifierList.GetFilteredCount; 272 | for I := 0 to Count - 1 do 273 | begin 274 | Identifier := CodeToolBoss.IdentifierList.FilteredItems[I]; 275 | Completion := TCompletionItem(Completions.Add); 276 | Completion.insertText := Identifier.Identifier; 277 | Completion.detail:=Identifier.Node.DescAsString; 278 | Completion.insertTextFormat := TInsertTextFormat.PlainText; 279 | end; 280 | end else begin 281 | if CodeToolBoss.ErrorMessage<>'' then 282 | writeln(stderr, 'Parse error: ',CodeToolBoss.ErrorMessage) 283 | else 284 | writeln(stderr, 'Error: no context'); 285 | end; 286 | 287 | Result := TCompletionList.Create; 288 | Result.items := Completions; 289 | end; 290 | end; 291 | 292 | initialization 293 | LSPHandlerManager.RegisterHandler('textDocument/completion', TCompletion); 294 | end. 295 | 296 | -------------------------------------------------------------------------------- /general.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // . 19 | 20 | unit general; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes, CodeToolManager, CodeToolsConfig, URIParser, LazUTF8, 28 | lsp, capabilities; 29 | 30 | type 31 | 32 | { TVoidParams } 33 | 34 | TVoidParams = class(TPersistent); 35 | 36 | { TInitializeParams } 37 | 38 | TInitializeParams = class(TPersistent) 39 | private 40 | //fProcessId: string; 41 | fRootUri: string; 42 | fCapabilities: TClientCapabilities; 43 | published 44 | //property processId: string read fProcessId write fProcessId; 45 | property rootUri: string read fRootUri write fRootUri; 46 | property capabilities: TClientCapabilities read fCapabilities write fCapabilities; 47 | end; 48 | 49 | { TInitializeResult } 50 | 51 | TInitializeResult = class(TPersistent) 52 | private 53 | fCapabilities: TServerCapabilities; 54 | published 55 | property capabilities: TServerCapabilities read fCapabilities write fCapabilities; 56 | end; 57 | 58 | { TInitialize } 59 | 60 | TInitialize = class(specialize TLSPRequest) 61 | function Process(var Params : TInitializeParams): TInitializeResult; override; 62 | end; 63 | 64 | { TInitialized } 65 | 66 | TInitialized = class(specialize TLSPNotification) 67 | procedure Process(var Params : TVoidParams); override; 68 | end; 69 | 70 | { TCancelParams } 71 | 72 | TCancelParams = class(TPersistent) 73 | private 74 | fId: Integer; 75 | published 76 | property id: Integer read fId write fId; 77 | end; 78 | 79 | { TShutdown } 80 | 81 | TShutdown = class(specialize TLSPRequest) 82 | function Process(var Params : TVoidParams): TPersistent; override; 83 | end; 84 | 85 | { TExit } 86 | 87 | TExit = class(specialize TLSPNotification) 88 | procedure Process(var Params : TVoidParams); override; 89 | end; 90 | 91 | { TCancel } 92 | 93 | TCancel = class(specialize TLSPNotification) 94 | procedure Process(var Params : TCancelParams); override; 95 | end; 96 | 97 | implementation 98 | 99 | { TInitialize } 100 | 101 | function TInitialize.Process(var Params : TInitializeParams): TInitializeResult; 102 | var 103 | CodeToolsOptions: TCodeToolsOptions; 104 | begin with Params do 105 | begin 106 | CodeToolsOptions := TCodeToolsOptions.Create; 107 | with CodeToolsOptions do 108 | begin 109 | InitWithEnvironmentVariables; 110 | ProjectDir := ParseURI(rootUri).Path; 111 | end; 112 | with CodeToolBoss do 113 | begin 114 | Init(CodeToolsOptions); 115 | IdentifierList.SortForHistory := True; 116 | IdentifierList.SortForScope := True; 117 | end; 118 | 119 | Result := TInitializeResult.Create; 120 | Result.capabilities := TServerCapabilities.Create; 121 | end; 122 | end; 123 | 124 | { TInitialized } 125 | 126 | procedure TInitialized.Process(var Params : TVoidParams); 127 | begin 128 | // do nothing 129 | end; 130 | 131 | { TShutdown } 132 | 133 | function TShutdown.Process(var Params : TVoidParams): TPersistent; 134 | begin 135 | // do nothing 136 | end; 137 | 138 | { TExit } 139 | 140 | procedure TExit.Process(var Params : TVoidParams); 141 | begin 142 | Halt(0); 143 | end; 144 | 145 | { TCancel } 146 | 147 | procedure TCancel.Process(var Params : TCancelParams); 148 | begin 149 | // not supported 150 | end; 151 | 152 | initialization 153 | LSPHandlerManager.RegisterHandler('initialize', TInitialize); 154 | LSPHandlerManager.RegisterHandler('initialized', TInitialized); 155 | LSPHandlerManager.RegisterHandler('shutdown', TShutdown); 156 | LSPHandlerManager.RegisterHandler('exit', TExit); 157 | LSPHandlerManager.RegisterHandler('$/cancelRequest', TCancel); 158 | end. 159 | 160 | -------------------------------------------------------------------------------- /lsp.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // . 19 | 20 | unit lsp; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes, SysUtils, TypInfo, fpjson, fpjsonrtti, fpjsonrpc, 28 | basic; 29 | 30 | type 31 | 32 | { TLSPStreamer } 33 | 34 | TLSPStreamer = class(TJSONStreamer) 35 | protected 36 | function StreamClassProperty(const AObject: TObject): TJSONData; override; 37 | end; 38 | 39 | { TLSPDeStreamer } 40 | 41 | TLSPDeStreamer = class(TJSONDeStreamer) 42 | protected 43 | procedure DoRestoreProperty(AObject: TObject; PropInfo: PPropInfo; 44 | PropData: TJSONData); override; 45 | end; 46 | 47 | { TLSPStreaming } 48 | 49 | generic TLSPStreaming = class 50 | private 51 | class var Streamer: TLSPStreamer; 52 | class var DeStreamer: TLSPDeStreamer; 53 | class procedure GetObject(Sender: TOBject; AObject: TObject; 54 | Info: PPropInfo; AData: TJSONObject; 55 | DataName: TJSONStringType; var AValue: TObject); static; 56 | public 57 | class constructor Create; 58 | class function ToObject(const JSON: TJSONData): T; static; 59 | class function ToJSON(AObject: T): TJSONData; static; 60 | end; 61 | 62 | { TLSPProcessor } 63 | 64 | generic TLSPProcess = function (var Params : T): U; 65 | 66 | generic TLSPProcessor = class 67 | public 68 | class function Process(AProcess: specialize TLSPProcess; const Params: TJSONData): TJSONData; static; 69 | end; 70 | 71 | { TLSPRequest } 72 | 73 | generic TLSPRequest = class(TCustomJSONRPCHandler) 74 | protected 75 | function DoExecute(const Params: TJSONData; AContext: TJSONRPCCallContext): TJSONData; override; 76 | function Process(var Params : T): U; virtual; abstract; 77 | end; 78 | 79 | { TLSPNotification } 80 | 81 | generic TLSPNotification = class(TCustomJSONRPCHandler) 82 | protected 83 | function DoExecute(const Params: TJSONData; AContext: TJSONRPCCallContext): TJSONData; override; 84 | procedure Process(var Params : T); virtual; abstract; 85 | end; 86 | 87 | { TLSPDispatcher } 88 | 89 | TLSPDispatcher = class(TCustomJSONRPCDispatcher) 90 | protected 91 | function ExecuteMethod(const AClassName, AMethodName: TJSONStringType; 92 | Params, ID: TJSONData; AContext: TJSONRPCCallContext): TJSONData; override; 93 | public 94 | constructor Create(AOwner: TComponent); override; 95 | end; 96 | 97 | { LSPException } 98 | 99 | LSPException = class(Exception) 100 | public 101 | function Code: Integer; virtual; abstract; 102 | end; 103 | 104 | EServerNotInitialized = class(LSPException) 105 | public 106 | function Code: Integer; override; 107 | end; 108 | 109 | EUnknownErrorCode = class(LSPException) 110 | public 111 | function Code: Integer; override; 112 | end; 113 | 114 | // Defined by the protocol. 115 | ERequestCancelled = class(LSPException) 116 | public 117 | function Code: Integer; override; 118 | end; 119 | 120 | EContentModified = class(LSPException) 121 | public 122 | function Code: Integer; override; 123 | end; 124 | 125 | { LSPHandlerManager } 126 | 127 | function LSPHandlerManager: TCustomJSONRPCHandlerManager; 128 | 129 | implementation 130 | 131 | { TLSPStreamer } 132 | 133 | function TLSPStreamer.StreamClassProperty(const AObject: TObject): TJSONData; 134 | var 135 | C: TClass; 136 | OptionalVariant: TOptionalVariantBase; 137 | OptionalObject: TOptionalObjectBase; 138 | begin 139 | if not Assigned(AObject) then 140 | begin 141 | Result := inherited StreamClassProperty(AObject); 142 | Exit; 143 | end; 144 | C := AObject.ClassType; 145 | if C.InheritsFrom(TOptionalVariantBase) then 146 | begin 147 | OptionalVariant := TOptionalVariantBase(AObject); 148 | if OptionalVariant.HasValue then 149 | Result := StreamVariant(OptionalVariant.Value) 150 | else Result := nil 151 | end 152 | else if C.InheritsFrom(TOptionalObjectBase) then 153 | begin 154 | OptionalObject := TOptionalObjectBase(AObject); 155 | if OptionalObject.HasValue then 156 | if OptionalObject.Value = nil then Result := TJSONNull.Create 157 | else Result := ObjectToJSON(OptionalObject.Value) 158 | else Result := nil 159 | end 160 | else Result := inherited StreamClassProperty(AObject) 161 | end; 162 | 163 | { TLSPDeStreamer } 164 | 165 | procedure TLSPDeStreamer.DoRestoreProperty(AObject: TObject; PropInfo: PPropInfo; PropData: TJSONData); 166 | var 167 | C: TClass; 168 | Optional: TObject; 169 | OptionalVariant: TOptionalVariantBase; 170 | OptionalObject: TOptionalObjectBase; 171 | begin 172 | if PropInfo^.PropType^.Kind = tkClass then 173 | begin 174 | C := GetTypeData(PropInfo^.PropType)^.ClassType; 175 | if C.InheritsFrom(TOptionalVariantBase) then 176 | begin 177 | Optional := C.Create; 178 | OptionalVariant := TOptionalVariantBase(Optional); 179 | SetObjectProp(AObject, PropInfo, Optional); 180 | OptionalVariant.Value := JSONToVariant(PropData); 181 | end 182 | else if C.InheritsFrom(TOptionalObjectBase) then 183 | begin 184 | Optional := C.Create; 185 | OptionalObject := TOptionalObjectBase(Optional); 186 | SetObjectProp(AObject, PropInfo, Optional); 187 | if PropData.JSONType = jtNull then OptionalObject.Value := nil 188 | else 189 | begin 190 | OptionalObject.Value := OptionalObject.ValueClass.Create; 191 | JSONToObject(PropData as TJSONObject, OptionalObject.Value); 192 | end; 193 | end 194 | else inherited DoRestoreProperty(AObject, PropInfo, PropData) 195 | end 196 | else 197 | inherited DoRestoreProperty(AObject, PropInfo, PropData) 198 | end; 199 | 200 | { TLSPStreaming } 201 | 202 | class procedure TLSPStreaming.GetObject(Sender: TOBject; AObject: TObject; 203 | Info: PPropInfo; AData: TJSONObject; 204 | DataName: TJSONStringType; var AValue: TObject); 205 | var 206 | C: TClass; 207 | begin 208 | C := GetTypeData(Info^.PropType)^.ClassType; 209 | if C.InheritsFrom(TPersistent) then AValue := C.Create; 210 | end; 211 | 212 | class constructor TLSPStreaming.Create; 213 | begin 214 | Streamer := TLSPStreamer.Create(nil); 215 | Streamer.Options := Streamer.Options + 216 | [jsoEnumeratedAsInteger, jsoSetEnumeratedAsInteger, jsoTStringsAsArray]; 217 | 218 | DeStreamer := TLSPDeStreamer.Create(nil); 219 | DeStreamer.OnGetObject := @GetObject; 220 | end; 221 | 222 | class function TLSPStreaming.ToObject(const JSON: TJSONData): T; 223 | begin 224 | Result := T.Create; 225 | DeStreamer.JSONToObject(JSON as TJSONObject, Result); 226 | end; 227 | 228 | class function TLSPStreaming.ToJSON(AObject: T): TJSONData; 229 | begin 230 | Result := Streamer.ObjectToJSON(AObject); 231 | end; 232 | 233 | { TLSPProcessor } 234 | 235 | class function TLSPProcessor.Process(AProcess: specialize TLSPProcess; const Params: TJSONData): TJSONData; 236 | var 237 | Input: T; 238 | begin 239 | Input := specialize TLSPStreaming.ToObject(Params); 240 | Result := specialize TLSPStreaming.ToJSON(AProcess(Input)); 241 | end; 242 | 243 | { TLSPRequest } 244 | 245 | function TLSPRequest.DoExecute(const Params: TJSONData; AContext: TJSONRPCCallContext): TJSONData; 246 | var 247 | Input: T; 248 | begin 249 | Input := specialize TLSPStreaming.ToObject(Params); 250 | Result := specialize TLSPStreaming.ToJSON(Process(Input)); 251 | if not Assigned(Result) then Result := TJSONNull.Create; 252 | end; 253 | 254 | { TLSPNotification } 255 | 256 | function TLSPNotification.DoExecute(const Params: TJSONData; AContext: TJSONRPCCallContext): TJSONData; 257 | var 258 | Input: T; 259 | begin 260 | Input := specialize TLSPStreaming.ToObject(Params); 261 | Process(Input); 262 | end; 263 | 264 | { TLSPDispatcher } 265 | 266 | function TLSPDispatcher.ExecuteMethod(const AClassName, AMethodName: TJSONStringType; 267 | Params, ID: TJSONData; AContext: TJSONRPCCallContext): TJSONData; 268 | begin 269 | try 270 | Result := inherited ExecuteMethod(AClassName, AMethodName, Params, ID, AContext); 271 | except 272 | on E: LSPException do // handle errors specific to LSP 273 | Exit(CreateJSON2Error(E.Message, E.Code, ID.Clone, TransactionProperty)) 274 | else raise; 275 | end; 276 | end; 277 | 278 | constructor TLSPDispatcher.Create(AOwner: TComponent); 279 | begin 280 | inherited Create(AOwner); 281 | Options := [jdoSearchRegistry, jdoJSONRPC2, jdoNotifications, jdoStrictNotifications]; 282 | end; 283 | 284 | { LSPException } 285 | 286 | function EServerNotInitialized.Code: Integer; 287 | begin 288 | result := -32002; 289 | end; 290 | 291 | function EUnknownErrorCode.Code: Integer; 292 | begin 293 | result := -32001; 294 | end; 295 | 296 | function ERequestCancelled.Code: Integer; 297 | begin 298 | result := -32800; 299 | end; 300 | 301 | function EContentModified.Code: Integer; 302 | begin 303 | result := -32801; 304 | end; 305 | 306 | { LSPHandlerManager } 307 | 308 | function LSPHandlerManager: TCustomJSONRPCHandlerManager; 309 | begin 310 | Result := JSONRPCHandlerManager; 311 | end; 312 | 313 | end. 314 | 315 | -------------------------------------------------------------------------------- /options.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // . 19 | 20 | unit options; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes; 28 | 29 | type 30 | 31 | { TTextDocumentSyncKind } 32 | 33 | // Defines how the host (editor) should sync document changes to the 34 | // language server. 35 | TTextDocumentSyncKind = ( 36 | // Documents should not be synced at all. 37 | None = 0, 38 | // Documents are synced by always sending the full content 39 | Full = 1, 40 | // Documents are synced by sending the full content on open. 41 | // After that only incremental updates to the document are send. 42 | Incremental = 2); 43 | 44 | { TTextDocumentSyncOptions } 45 | 46 | TTextDocumentSyncOptions = class(TPersistent) 47 | private 48 | fOpenClose: Boolean; 49 | fChange: TTextDocumentSyncKind; 50 | public 51 | constructor Create; 52 | published 53 | // Open and close notifications are sent to the server. If omitted 54 | // open close notification should not be sent. 55 | property openClose: Boolean read fOpenClose write fOpenClose; 56 | // Change notifications are sent to the server. See 57 | // TextDocumentSyncKind.None, TextDocumentSyncKind.Full and 58 | // TextDocumentSyncKind.Incremental. If omitted it defaults to 59 | // TextDocumentSyncKind.None. 60 | property change: TTextDocumentSyncKind read fChange write fChange; 61 | end; 62 | 63 | { TCompletionOptions } 64 | 65 | // Completion options. 66 | TCompletionOptions = class(TPersistent) 67 | private 68 | fTriggerCharacters: TStrings; 69 | fAllCommitCharacters: TStrings; 70 | fResolveProvider: Boolean; 71 | public 72 | constructor Create; 73 | published 74 | // Most tools trigger completion request automatically without 75 | // explicitly requesting it using a keyboard shortcut 76 | // (e.g. Ctrl+Space). Typically they do so when the user starts to 77 | // type an identifier. For example if the user types `c` in a 78 | // JavaScript file code complete will automatically pop up present 79 | // `console` besides others as a completion item. Characters that 80 | // make up identifiers don't need to be listed here. 81 | // 82 | // If code complete should automatically be trigger on characters 83 | // not being valid inside an identifier (for example `.` in 84 | // JavaScript) list them in `triggerCharacters`. 85 | property triggerCharacters: TStrings read fTriggerCharacters write fTriggerCharacters; 86 | // The list of all possible characters that commit a 87 | // completion. This field can be used if clients don't support 88 | // individual commit characters per completion item. See 89 | // `ClientCapabilities.textDocument.completion.completionItem.commitCharactersSupport`. 90 | // 91 | // If a server provides both `allCommitCharacters` and commit 92 | // characters on an individual completion item the ones on the 93 | // completion item win. 94 | // 95 | // @since 3.2.0 96 | property allCommitCharacters: TStrings read fAllCommitCharacters write fAllCommitCharacters; 97 | // The server provides support to resolve additional information 98 | // for a completion item. 99 | property resolveProvider: Boolean read fResolveProvider write fResolveProvider; 100 | end; 101 | 102 | implementation 103 | 104 | { TTextDocumentSyncOptions} 105 | 106 | constructor TTextDocumentSyncOptions.Create; 107 | begin 108 | openClose := True; 109 | change := TTextDocumentSyncKind.Full; 110 | end; 111 | 112 | { TCompletionOptions } 113 | 114 | constructor TCompletionOptions.Create; 115 | begin 116 | resolveProvider := False; 117 | end; 118 | 119 | end. 120 | 121 | -------------------------------------------------------------------------------- /pasls.lpi: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | <UseAppBundle Value="False"/> 13 | <ResourceType Value="res"/> 14 | </General> 15 | <BuildModes Count="2"> 16 | <Item1 Name="Debug" Default="True"/> 17 | <Item2 Name="Release"> 18 | <CompilerOptions> 19 | <Version Value="11"/> 20 | <SearchPaths> 21 | <IncludeFiles Value="$(ProjOutDir)"/> 22 | <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/> 23 | </SearchPaths> 24 | <CodeGeneration> 25 | <SmartLinkUnit Value="True"/> 26 | <Optimizations> 27 | <OptimizationLevel Value="3"/> 28 | </Optimizations> 29 | </CodeGeneration> 30 | <Linking> 31 | <Debugging> 32 | <GenerateDebugInfo Value="False"/> 33 | </Debugging> 34 | <LinkSmart Value="True"/> 35 | </Linking> 36 | </CompilerOptions> 37 | </Item2> 38 | </BuildModes> 39 | <PublishOptions> 40 | <Version Value="2"/> 41 | <UseFileFilters Value="True"/> 42 | </PublishOptions> 43 | <RunParams> 44 | <FormatVersion Value="2"/> 45 | <Modes Count="0"/> 46 | </RunParams> 47 | <RequiredPackages Count="3"> 48 | <Item1> 49 | <PackageName Value="CodeTools"/> 50 | </Item1> 51 | <Item2> 52 | <PackageName Value="WebLaz"/> 53 | </Item2> 54 | <Item3> 55 | <PackageName Value="FCL"/> 56 | </Item3> 57 | </RequiredPackages> 58 | <Units Count="8"> 59 | <Unit0> 60 | <Filename Value="pasls.lpr"/> 61 | <IsPartOfProject Value="True"/> 62 | </Unit0> 63 | <Unit1> 64 | <Filename Value="general.pas"/> 65 | <IsPartOfProject Value="True"/> 66 | </Unit1> 67 | <Unit2> 68 | <Filename Value="lsp.pas"/> 69 | <IsPartOfProject Value="True"/> 70 | </Unit2> 71 | <Unit3> 72 | <Filename Value="synchronization.pas"/> 73 | <IsPartOfProject Value="True"/> 74 | </Unit3> 75 | <Unit4> 76 | <Filename Value="capabilities.pas"/> 77 | <IsPartOfProject Value="True"/> 78 | </Unit4> 79 | <Unit5> 80 | <Filename Value="options.pas"/> 81 | <IsPartOfProject Value="True"/> 82 | </Unit5> 83 | <Unit6> 84 | <Filename Value="completion.pas"/> 85 | <IsPartOfProject Value="True"/> 86 | </Unit6> 87 | <Unit7> 88 | <Filename Value="basic.pas"/> 89 | <IsPartOfProject Value="True"/> 90 | </Unit7> 91 | </Units> 92 | </ProjectOptions> 93 | <CompilerOptions> 94 | <Version Value="11"/> 95 | <SearchPaths> 96 | <IncludeFiles Value="$(ProjOutDir)"/> 97 | <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/> 98 | </SearchPaths> 99 | <Parsing> 100 | <SyntaxOptions> 101 | <IncludeAssertionCode Value="True"/> 102 | </SyntaxOptions> 103 | </Parsing> 104 | <CodeGeneration> 105 | <Checks> 106 | <IOChecks Value="True"/> 107 | <RangeChecks Value="True"/> 108 | <OverflowChecks Value="True"/> 109 | <StackChecks Value="True"/> 110 | </Checks> 111 | <VerifyObjMethodCallValidity Value="True"/> 112 | </CodeGeneration> 113 | <Linking> 114 | <Debugging> 115 | <DebugInfoType Value="dsDwarf2Set"/> 116 | <UseHeaptrc Value="True"/> 117 | <TrashVariables Value="True"/> 118 | <UseExternalDbgSyms Value="True"/> 119 | </Debugging> 120 | </Linking> 121 | </CompilerOptions> 122 | </CONFIG> 123 | -------------------------------------------------------------------------------- /pasls.lpr: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // <https://www.gnu.org/licenses/>. 19 | 20 | program pasls; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | uses 25 | SysUtils, fpjson, jsonparser, jsonscanner, 26 | lsp, general, synchronization, completion; 27 | 28 | const 29 | ContentType = 'application/vscode-jsonrpc; charset=utf-8'; 30 | 31 | var 32 | Dispatcher: TLSPDispatcher; 33 | Header, Name, Value, Content: string; 34 | I, Length: Integer; 35 | Request, Response: TJSONData; 36 | begin 37 | Dispatcher := TLSPDispatcher.Create(nil); 38 | TJSONData.CompressedJSON := True; 39 | SetTextLineEnding(Input, #13#10); 40 | SetTextLineEnding(Output, #13#10); 41 | 42 | while not EOF do 43 | begin 44 | ReadLn(Header); 45 | while Header <> '' do 46 | begin 47 | I := Pos(':', Header); 48 | Name := Copy(Header, 1, I - 1); 49 | Delete(Header, 1, i); 50 | Value := Trim(Header); 51 | if Name = 'Content-Length' then Length := StrToInt(Value); 52 | ReadLn(Header); 53 | end; 54 | 55 | Content := ''; 56 | SetLength(Content, Length); 57 | I := 1; 58 | while I <= Length do 59 | begin 60 | Read(Content[I]); 61 | Inc(I); 62 | end; 63 | 64 | Request := TJSONParser.Create(Content, DefaultOptions).Parse; 65 | Response := Dispatcher.Execute(Request); 66 | if Assigned(Response) then 67 | begin 68 | Content := Response.AsJSON; 69 | WriteLn('Content-Type: ', ContentType); 70 | WriteLn('Content-Length: ', Content.Length); 71 | WriteLn; 72 | Write(Content); 73 | Flush(Output); 74 | end; 75 | end; 76 | end. 77 | -------------------------------------------------------------------------------- /synchronization.pas: -------------------------------------------------------------------------------- 1 | // Pascal Language Server 2 | // Copyright 2020 Arjan Adriaanse 3 | 4 | // This file is part of Pascal Language Server. 5 | 6 | // Pascal Language Server is free software: you can redistribute it 7 | // and/or modify it under the terms of the GNU General Public License 8 | // as published by the Free Software Foundation, either version 3 of 9 | // the License, or (at your option) any later version. 10 | 11 | // Pascal Language Server is distributed in the hope that it will be 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty 13 | // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | // GNU General Public License for more details. 15 | 16 | // You should have received a copy of the GNU General Public License 17 | // along with Pascal Language Server. If not, see 18 | // <https://www.gnu.org/licenses/>. 19 | 20 | unit synchronization; 21 | 22 | {$mode objfpc}{$H+} 23 | 24 | interface 25 | 26 | uses 27 | Classes, URIParser, CodeToolManager, CodeCache, 28 | lsp, basic; 29 | 30 | type 31 | 32 | { TDidOpenTextDocumentParams } 33 | 34 | TDidOpenTextDocumentParams = class(TPersistent) 35 | private 36 | fTextDocument: TTextDocumentItem; 37 | published 38 | // The document that was opened. 39 | property textDocument: TTextDocumentItem read fTextDocument write fTextDocument; 40 | end; 41 | 42 | { TDidOpenTextDocument } 43 | 44 | TDidOpenTextDocument = class(specialize TLSPNotification<TDidOpenTextDocumentParams>) 45 | procedure Process(var Params : TDidOpenTextDocumentParams); override; 46 | end; 47 | 48 | { TTextDocumentContentChangeEvent } 49 | 50 | // An event describing a change to a text document. If range and 51 | // rangeLength are omitted the new text is considered to be the full 52 | // content of the document. 53 | TTextDocumentContentChangeEvent = class(TCollectionItem) 54 | private 55 | fText: string; 56 | published 57 | // The new text of the whole document. 58 | property text: string read fText write fText; 59 | end; 60 | 61 | { TDidChangeTextDocumentParams } 62 | 63 | TDidChangeTextDocumentParams = class(TPersistent) 64 | private 65 | fTextDocument: TVersionedTextDocumentIdentifier; 66 | fContentChanges: TCollection; 67 | public 68 | constructor Create; 69 | published 70 | // The document that did change. The version number points to the 71 | // version after all provided content changes have been applied. 72 | property textDocument: TVersionedTextDocumentIdentifier read fTextDocument write fTextDocument; 73 | // The actual content changes. The content changes describe single 74 | // state changes to the document. So if there are two content 75 | // changes c1 (at array index 0) and c2 (at array index 1) for a 76 | // document in state S then c1 moves the document from S to S' and 77 | // c2 from S' to S''. So c1 is computed on the state S and c2 is 78 | // computed on the state S'. 79 | // 80 | // To mirror the content of a document using change events use the 81 | // following approach: 82 | // - start with the same initial content 83 | // - apply the 'textDocument/didChange' notifications in the order 84 | // you recevie them. 85 | // - apply the `TextDocumentContentChangeEvent`s in a single 86 | // notification in the order you receive them. 87 | property contentChanges: TCollection read fContentChanges write fContentChanges; 88 | end; 89 | 90 | { TDidChangeTextDocument } 91 | 92 | TDidChangeTextDocument = class(specialize TLSPNotification<TDidChangeTextDocumentParams>) 93 | procedure Process(var Params : TDidChangeTextDocumentParams); override; 94 | end; 95 | 96 | implementation 97 | 98 | { TDidChangeTextDocumentParams } 99 | 100 | constructor TDidChangeTextDocumentParams.Create; 101 | begin 102 | contentChanges := TCollection.Create(TTextDocumentContentChangeEvent); 103 | end; 104 | 105 | { TDidOpenTextDocument } 106 | 107 | procedure TDidOpenTextDocument.Process(var Params : TDidOpenTextDocumentParams); 108 | var 109 | URI: TURI; 110 | Code: TCodeBuffer; 111 | begin with Params do 112 | begin 113 | URI := ParseURI(textDocument.uri); 114 | Code := CodeToolBoss.LoadFile(URI.Path + URI.Document, false, false); 115 | Code.Source := textDocument.text; 116 | end; 117 | end; 118 | 119 | { TDidChangeTextDocument } 120 | 121 | procedure TDidChangeTextDocument.Process(var Params : TDidChangeTextDocumentParams); 122 | var 123 | URI: TURI; 124 | Code: TCodeBuffer; 125 | Change: TCollectionItem; 126 | begin with Params do 127 | begin 128 | URI := ParseURI(textDocument.uri); 129 | Code := CodeToolBoss.FindFile(URI.Path + URI.Document); 130 | for Change in contentChanges do 131 | begin 132 | Code.Source := TTextDocumentContentChangeEvent(Change).text; 133 | end; 134 | end; 135 | end; 136 | 137 | initialization 138 | LSPHandlerManager.RegisterHandler('textDocument/didOpen', TDidOpenTextDocument); 139 | LSPHandlerManager.RegisterHandler('textDocument/didChange', TDidChangeTextDocument); 140 | end. 141 | --------------------------------------------------------------------------------