import logging from typing import Optional from jedi import Script from jedi.api.refactoring import RefactoringError from lsprotocol.types import ( CompletionItem, CompletionList, CompletionOptions, CompletionParams, DefinitionParams, Hover, HoverParams, InsertTextFormat, Location, ReferenceParams, RenameParams, TextDocumentPositionParams, TypeDefinitionParams, WorkspaceEdit, TEXT_DOCUMENT_COMPLETION, TEXT_DOCUMENT_DEFINITION, TEXT_DOCUMENT_HOVER, TEXT_DOCUMENT_REFERENCES, TEXT_DOCUMENT_RENAME, TEXT_DOCUMENT_TYPE_DEFINITION, ) from pygls.server import LanguageServer from pygls.workspace import Document from italianswirls.glue import ( gen_document_edits, get_jedi_position, get_lsp_completion_kind, get_lsp_locations, ) LS = LanguageServer("italianswirls", "v1.1.0") def get_jedi_script(document: Document) -> Script: """Get Jedi Script object from this document.""" return Script(code=document.source, path=document.path) def get_jedi_script_from_params( params: TextDocumentPositionParams, server: LanguageServer ) -> Script: """Get Jedi Script using text document params provided by the client.""" document_uri = params.text_document.uri document = server.workspace.get_document(document_uri) script = get_jedi_script(document) return script @LS.feature(TEXT_DOCUMENT_COMPLETION, CompletionOptions(trigger_characters=["."])) async def do_completion( server: LanguageServer, params: CompletionParams, ) -> CompletionList: """Return completion items.""" script = get_jedi_script_from_params(params, server) jedi_position = get_jedi_position(params.position) jedi_completions = script.complete(*jedi_position) completion_items = [] for jedi_completion in jedi_completions: name = jedi_completion.name item = CompletionItem( label=name, filter_text=name, kind=get_lsp_completion_kind(jedi_completion.type), sort_text=name, insert_text_name=name, insert_text_format=InsertTextFormat.PlainText, ) completion_items.append(item) return CompletionList( is_incomplete=False, items=completion_items, ) @LS.feature(TEXT_DOCUMENT_DEFINITION) async def do_definition( server: LanguageServer, params: DefinitionParams, ) -> Optional[list[Location]]: """Return the definition location(s) of the target symbol.""" script = get_jedi_script_from_params(params, server) jedi_position = get_jedi_position(params.position) jedi_names = script.goto( *jedi_position, follow_imports=True, follow_builtin_imports=True, ) return get_lsp_locations(jedi_names) or None @LS.feature(TEXT_DOCUMENT_TYPE_DEFINITION) async def do_type_definition( server: LanguageServer, params: TypeDefinitionParams, ) -> Optional[list[Location]]: """Return the type definition location(s) of the target symbol.""" script = get_jedi_script_from_params(params, server) jedi_position = get_jedi_position(params.position) jedi_names = script.infer(*jedi_position) return get_lsp_locations(jedi_names) or None @LS.feature(TEXT_DOCUMENT_REFERENCES) async def do_references( server: LanguageServer, params: ReferenceParams, ) -> Optional[list[Location]]: """Return the type definition location(s) of the target symbol.""" script = get_jedi_script_from_params(params, server) jedi_position = get_jedi_position(params.position) jedi_names = script.get_references(*jedi_position) return get_lsp_locations(jedi_names) or None @LS.feature(TEXT_DOCUMENT_HOVER) async def do_hover( server: LanguageServer, params: HoverParams, ) -> Optional[Hover]: """Provide "hover", which is the documentation of the target symbol. Jedi provides a list of names with information, usually only one. We handle them all and concatenate them, separated by a horizontal line. For simplicity, the text is mostly provided untouched, including docstrings, so if your client tries to interpret it as Markdown even though there are rogue `**kwargs` hanging around you might have a few display issues. """ script = get_jedi_script_from_params(params, server) jedi_position = get_jedi_position(params.position) jedi_help_names = script.help(*jedi_position) if not jedi_help_names: return None help_texts = [] for jedi_name in jedi_help_names: text = "" if full_name := jedi_name.full_name: text += f"`{full_name}`\n" if sigs := jedi_name.get_signatures(): text += "\n".join(f"`{sig.to_string()}`" for sig in sigs) + "\n" if docstring := jedi_name.docstring(raw=True): text += "\n" + docstring if text: help_texts.append(text) if not help_texts: return None hover_text = "\n\n---\n\n".join(help_texts) return Hover(contents=hover_text) @LS.feature(TEXT_DOCUMENT_RENAME) async def do_rename( server: LanguageServer, params: RenameParams, ) -> Optional[WorkspaceEdit]: """Ask Jedi to rename a symbol and return the resulting state.""" script = get_jedi_script_from_params(params, server) jedi_position = get_jedi_position(params.position) try: refactoring = script.rename(*jedi_position, new_name=params.new_name) except RefactoringError as exc: logging.error(f"Refactoring failed: {exc}") return None changes = list(gen_document_edits(refactoring, server.workspace)) logging.info(f"changes: {changes}") return WorkspaceEdit(document_changes=changes) if changes else None