""" CSharp Language Server using Roslyn Language Server (Official Roslyn-based LSP server from NuGet.org) """ # SPDX-License-Identifier: MIT import logging import os import platform import shutil import tempfile import threading from collections.abc import Hashable, Iterable from dataclasses import replace from pathlib import Path from typing import Any, cast from overrides import override from serena.util.dotnet import DotNETUtil from solidlsp.ls import ( LanguageServerDependencyProvider, LSPFileBuffer, RawDocumentSymbol, SolidLanguageServer, ) from solidlsp.ls_config import LanguageServerConfig from solidlsp.ls_exceptions import SolidLSPException from solidlsp.ls_types import Hover from solidlsp.ls_utils import FileUtils, PathUtils from solidlsp.lsp_protocol_handler.lsp_types import InitializeResult from solidlsp.settings import SolidLSPSettings from .common import RuntimeDependency, RuntimeDependencyCollection log = logging.getLogger(__name__) NUGET_ALLOWED_HOSTS = ("www.nuget.org", "nuget.org", "globalcdn.nuget.org") DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION = "5.5.0-2.26078.4" WINDOWS_MAX_PATH = 260 ROSLYN_LONGEST_KNOWN_PACKAGE_MEMBER = "Microsoft.CodeAnalysis.ExternalAccess.CompilerDeveloperSDK.dll" _RUNTIME_DEPENDENCIES = [ RuntimeDependency( id="CSharpLanguageServer", description="Roslyn Language Server for Windows (x64)", package_name="roslyn-language-server.win-x64", package_version=DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION, url=f"https://www.nuget.org/api/v2/package/roslyn-language-server.win-x64/{DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION}", platform_id="win-x64", archive_type="nupkg", binary_name="Microsoft.CodeAnalysis.LanguageServer.dll", extract_path="tools/net10.0/win-x64", sha256="7f3d4119e75305399e6faa81a68240b33c48b94ad523a904594abd00db95572a", allowed_hosts=NUGET_ALLOWED_HOSTS, ), RuntimeDependency( id="CSharpLanguageServer", description="Roslyn Language Server for Windows (ARM64)", package_name="roslyn-language-server.win-arm64", package_version=DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION, url=f"https://www.nuget.org/api/v2/package/roslyn-language-server.win-arm64/{DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION}", platform_id="win-arm64", archive_type="nupkg", binary_name="Microsoft.CodeAnalysis.LanguageServer.dll", extract_path="tools/net10.0/win-arm64", sha256="0fe3381c4340a7494a5242c3d0c8be1af6ef0802de8b458f947cebca76fd26bc", allowed_hosts=NUGET_ALLOWED_HOSTS, ), RuntimeDependency( id="CSharpLanguageServer", description="Roslyn Language Server for macOS (x64)", package_name="roslyn-language-server.osx-x64", package_version=DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION, url=f"https://www.nuget.org/api/v2/package/roslyn-language-server.osx-x64/{DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION}", platform_id="osx-x64", archive_type="nupkg", binary_name="Microsoft.CodeAnalysis.LanguageServer.dll", extract_path="tools/net10.0/osx-x64", sha256="c8de61a88c65150e12f561a2659f70b59d27a7465865136a1de950d2ef826c6d", allowed_hosts=NUGET_ALLOWED_HOSTS, ), RuntimeDependency( id="CSharpLanguageServer", description="Roslyn Language Server for macOS (ARM64)", package_name="roslyn-language-server.osx-arm64", package_version=DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION, url=f"https://www.nuget.org/api/v2/package/roslyn-language-server.osx-arm64/{DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION}", platform_id="osx-arm64", archive_type="nupkg", binary_name="Microsoft.CodeAnalysis.LanguageServer.dll", extract_path="tools/net10.0/osx-arm64", sha256="995207c14e01dafa71e84080a7eb1f045a697b0c3bb468077bb3809b69bdf456", allowed_hosts=NUGET_ALLOWED_HOSTS, ), RuntimeDependency( id="CSharpLanguageServer", description="Roslyn Language Server for Linux (x64)", package_name="roslyn-language-server.linux-x64", package_version=DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION, url=f"https://www.nuget.org/api/v2/package/roslyn-language-server.linux-x64/{DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION}", platform_id="linux-x64", archive_type="nupkg", binary_name="Microsoft.CodeAnalysis.LanguageServer.dll", extract_path="tools/net10.0/linux-x64", sha256="1aad25de456d637a1eee993ca0d569a1b78d711744ccb36410a3a20250a48aa6", allowed_hosts=NUGET_ALLOWED_HOSTS, ), RuntimeDependency( id="CSharpLanguageServer", description="Roslyn Language Server for Linux (ARM64)", package_name="roslyn-language-server.linux-arm64", package_version=DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION, url=f"https://www.nuget.org/api/v2/package/roslyn-language-server.linux-arm64/{DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION}", platform_id="linux-arm64", archive_type="nupkg", binary_name="Microsoft.CodeAnalysis.LanguageServer.dll", extract_path="tools/net10.0/linux-arm64", sha256="a7dd49bbc0e25d0e2968ae31ec5f3c774373866db51f3500fcea0ac320e2bbc1", allowed_hosts=NUGET_ALLOWED_HOSTS, ), ] def _runtime_dependencies_for_version(version: str) -> list[RuntimeDependency]: """Return the Roslyn LS runtime dependencies for the configured version.""" default_version = version == DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION result: list[RuntimeDependency] = [] for dependency in _RUNTIME_DEPENDENCIES: assert dependency.package_version is not None assert dependency.url is not None result.append( replace( dependency, package_version=version, url=dependency.url.replace(dependency.package_version, version), sha256=dependency.sha256 if default_version else None, ) ) return result def breadth_first_file_scan(root_dir: str) -> Iterable[str]: """ Perform a breadth-first scan of files in the given directory. Yields file paths in breadth-first order. """ queue = [root_dir] while queue: current_dir = queue.pop(0) try: for item in os.listdir(current_dir): if item.startswith("."): continue item_path = os.path.join(current_dir, item) if os.path.isdir(item_path): queue.append(item_path) elif os.path.isfile(item_path): yield item_path except (PermissionError, OSError): # Skip directories we can't access pass def find_solution_or_project_file(root_dir: str) -> str | None: """ Find the first .sln or .slnx file in breadth-first order. If no solution file is found, look for a .csproj file. """ sln_file = None csproj_file = None for filename in breadth_first_file_scan(root_dir): if filename.endswith((".sln", ".slnx")) and sln_file is None: sln_file = filename elif filename.endswith(".csproj") and csproj_file is None: csproj_file = filename # If we found a solution file, return it immediately if sln_file: return sln_file # If no solution file was found, return the first .csproj file return csproj_file class CSharpLanguageServer(SolidLanguageServer): """ Provides C# specific instantiation of the LanguageServer class using the official Roslyn-based language server from NuGet.org. You can pass a list of runtime dependency overrides in ls_specific_settings["csharp"]["runtime_dependencies"]. This is a list of dicts, each containing at least the "id" key, and optionally "platform_id" to uniquely identify the dependency to override. You can also set `csharp_language_server_version` in ``ls_specific_settings["csharp"]`` to override the pinned Roslyn Language Server package version Serena downloads by default. Example - Override Roslyn Language Server URL: ``` { "id": "CSharpLanguageServer", "platform_id": "win-x64", "url": "https://example.com/custom-roslyn-server.nupkg" } ``` See the `_RUNTIME_DEPENDENCIES` variable above for the available dependency ids and platform_ids. Note: .NET runtime (version 10+) is required and installed automatically via Microsoft's official install scripts. If you have a custom .NET installation, ensure 'dotnet' is available in PATH with version 10 or higher. """ @classmethod def supports_implementation_request(cls) -> bool: return True def __init__(self, config: LanguageServerConfig, repository_root_path: str, solidlsp_settings: SolidLSPSettings): """ Creates a CSharpLanguageServer instance. This class is not meant to be instantiated directly. Use LanguageServer.create() instead. """ super().__init__(config, repository_root_path, None, "csharp", solidlsp_settings) # Cache for original Roslyn symbol names with type annotations # Key: (relative_file_path, line, character) -> Value: original name self._original_symbol_names: dict[tuple[str, int, int], str] = {} def _create_dependency_provider(self) -> LanguageServerDependencyProvider: return self.DependencyProvider(self._custom_settings, self._ls_resources_dir, self._solidlsp_settings, self.repository_root_path) @override def is_ignored_dirname(self, dirname: str) -> bool: return super().is_ignored_dirname(dirname) or dirname in ["bin", "obj", "packages", ".vs"] @override def request_hover(self, relative_file_path: str, line: int, column: int, file_buffer: LSPFileBuffer | None = None) -> Hover | None: """ Override to inject original Roslyn symbol names (with type annotations) into hover responses. When hovering over a symbol whose name was normalized, we prepend the original full name (e.g., 'Add(int, int) : int') to the hover content. """ hover = super().request_hover(relative_file_path, line, column, file_buffer=file_buffer) if hover is None: return None # Check if we have an original name for this position original_name = self._original_symbol_names.get((relative_file_path, line, column)) if original_name and "contents" in hover: contents = hover["contents"] if isinstance(contents, dict) and "value" in contents: # Prepend the original full name with type information to the hover content prefix = f"**{original_name}**\n\n---\n\n" contents["value"] = prefix + contents["value"] return hover def _document_symbols_cache_fingerprint(self) -> Hashable | None: normalize_symbol_name_version = 2 return normalize_symbol_name_version def _normalize_symbol_name(self, symbol: RawDocumentSymbol, relative_file_path: str) -> str: # Roslyn 5.5.0+ returns symbol names with type annotations: # - Properties: "Name : string" # - Methods: "Add(int, int) : int" # # This method: # 1. Normalizes names to base form ("Name", "Add") # 2. Caches original names for rich information display # 3. Populates LSP spec's 'detail' field with type/signature info original_name = symbol["name"] # Extract base name and type/signature info normalized_name, type_info = self._extract_base_name_and_type(original_name) # Store original name if it was normalized if original_name != normalized_name: sel_range = symbol.get("selectionRange") if sel_range: start = sel_range.get("start") if start and "line" in start and "character" in start: line = start["line"] char = start["character"] cache_key = (relative_file_path, line, char) self._original_symbol_names[cache_key] = original_name # Populate 'detail' field with type/signature information (for UnifiedSymbolInformation) if type_info and "detail" not in symbol: symbol["detail"] = type_info # type: ignore return normalized_name @staticmethod def _extract_base_name_and_type(roslyn_name: str) -> tuple[str, str]: """ Extract base name and type/signature information from Roslyn symbol names. Examples: "Name : string" -> ("Name", ": string") "Add(int, int) : int" -> ("Add", "(int, int) : int") "ToString()" -> ("ToString", "()") "SimpleMethod" -> ("SimpleMethod", "") "Position : (int X, string Y)" -> ("Position", ": (int X, string Y)") Returns: Tuple of (base_name, type_info) """ # Check for property pattern: "Name : Type". The '(' guard must look only at the # name segment before the first " : ", not the whole string, since a tuple type # ("(int X, string Y)") legitimately contains parentheses. if " : " in roslyn_name: base_name, type_part = roslyn_name.split(" : ", 1) if "(" not in base_name: return base_name.strip(), f": {type_part.strip()}" # Check for method pattern: "MethodName(params) : ReturnType" if "(" in roslyn_name: paren_idx = roslyn_name.index("(") base_name = roslyn_name[:paren_idx].strip() signature = roslyn_name[paren_idx:].strip() return base_name, signature # No type annotation return roslyn_name, "" class DependencyProvider(LanguageServerDependencyProvider): def __init__( self, custom_settings: SolidLSPSettings.CustomLSSettings, ls_resources_dir: str, solidlsp_settings: SolidLSPSettings, repository_root_path: str, ): super().__init__(custom_settings, ls_resources_dir) self._solidlsp_settings = solidlsp_settings self._repository_root_path = repository_root_path self._dotnet_path, self._language_server_path = self._ensure_server_installed() def create_launch_command(self) -> list[str]: # Find solution or project file solution_or_project = find_solution_or_project_file(self._repository_root_path) # Create log directory log_dir = Path(self._ls_resources_dir) / "logs" log_dir.mkdir(parents=True, exist_ok=True) # Build command using dotnet directly cmd = [self._dotnet_path, self._language_server_path, "--logLevel=Information", f"--extensionLogDirectory={log_dir}", "--stdio"] # The language server will discover the solution/project from the workspace root if solution_or_project: log.info(f"Found solution/project file: {solution_or_project}") else: log.warning("No .sln/.slnx or .csproj file found, language server will attempt auto-discovery") log.debug(f"Language server command: {' '.join(cmd)}") return cmd def _ensure_server_installed(self) -> tuple[str, str]: """ Ensure .NET runtime and Microsoft.CodeAnalysis.LanguageServer are available. Returns a tuple of (dotnet_path, language_server_dll_path). """ runtime_dependency_overrides = cast(list[dict[str, Any]], self._custom_settings.get("runtime_dependencies", [])) # Filter out deprecated DotNetRuntime overrides and warn users filtered_overrides = [] for dep_override in runtime_dependency_overrides: if dep_override.get("id") == "DotNetRuntime": log.warning( "The 'DotNetRuntime' runtime_dependencies override is no longer supported. " ".NET is now installed automatically via Microsoft's official install scripts. " "Please remove this override from your configuration." ) else: filtered_overrides.append(dep_override) log.debug("Resolving runtime dependencies") csharp_language_server_version = self._custom_settings.get( "csharp_language_server_version", DEFAULT_CSHARP_LANGUAGE_SERVER_VERSION ) runtime_dependencies = RuntimeDependencyCollection( _runtime_dependencies_for_version(csharp_language_server_version), overrides=filtered_overrides, ) log.debug( f"Available runtime dependencies: {runtime_dependencies.get_dependencies_for_current_platform}", ) # Find the dependencies for our platform lang_server_dep = runtime_dependencies.get_single_dep_for_current_platform("CSharpLanguageServer") dotnet_path = self._ensure_dotnet_runtime() server_dll_path = self._ensure_language_server(lang_server_dep) return dotnet_path, server_dll_path def _ensure_dotnet_runtime(self) -> str: """Ensure .NET runtime is available and return the dotnet executable path.""" return DotNETUtil("10.0", allow_higher_version=True).get_dotnet_path_or_raise() def _ensure_language_server(self, lang_server_dep: RuntimeDependency) -> str: """Ensure language server is available and return the DLL path.""" package_name = lang_server_dep.package_name package_version = lang_server_dep.package_version server_dir = Path(self._ls_resources_dir) / f"{package_name}.{package_version}" assert lang_server_dep.binary_name is not None server_dll = server_dir / lang_server_dep.binary_name if server_dll.exists(): log.info(f"Using cached Roslyn Language Server from {server_dll}") return str(server_dll) # Download and install the language server log.info(f"Downloading {package_name} version {package_version} from NuGet.org...") package_path = self._download_nuget_package(lang_server_dep) # Extract and install self._extract_language_server(lang_server_dep, package_path, server_dir) if not server_dll.exists(): raise SolidLSPException("Roslyn Language Server DLL not found after extraction") # Make executable on Unix systems if platform.system().lower() != "windows": server_dll.chmod(0o755) log.info(f"Successfully installed Roslyn Language Server to {server_dll}") return str(server_dll) @staticmethod def _extract_language_server(lang_server_dep: RuntimeDependency, package_path: Path, server_dir: Path) -> None: """Extract language server files from downloaded package.""" extract_path = lang_server_dep.extract_path or "lib/net9.0" source_dir = package_path / extract_path if not source_dir.exists(): # Try alternative locations for possible_dir in [ package_path / "tools" / "net9.0" / "any", package_path / "lib" / "net9.0", package_path / "contentFiles" / "any" / "net9.0", ]: if possible_dir.exists(): source_dir = possible_dir break else: raise SolidLSPException(f"Could not find language server files in package. Searched in {package_path}") # Copy files to cache directory server_dir.mkdir(parents=True, exist_ok=True) shutil.copytree(source_dir, server_dir, dirs_exist_ok=True) def _download_nuget_package(self, dependency: RuntimeDependency) -> Path: """ Download a NuGet package from NuGet.org and extract it. Returns the path to the extracted package directory. """ package_name = dependency.package_name package_version = dependency.package_version url = dependency.url if url is None: raise SolidLSPException(f"No URL specified for package {package_name} version {package_version}") package_extract_dir = Path(self._ls_resources_dir) / "temp_downloads" / f"{package_name}.{package_version}" projected_path = package_extract_dir / (dependency.extract_path or "") / ROSLYN_LONGEST_KNOWN_PACKAGE_MEMBER if platform.system() == "Windows" and len(str(projected_path)) >= WINDOWS_MAX_PATH: log.warning("Using a short temporary directory for Roslyn package extraction because the configured cache path is too deep") package_extract_dir = Path(tempfile.mkdtemp(prefix="serena-roslyn-")) / package_extract_dir.name package_extract_dir.parent.mkdir(parents=True, exist_ok=True) try: log.debug(f"Downloading package from: {url}") FileUtils.download_and_extract_archive_verified( url, str(package_extract_dir), "zip", expected_sha256=dependency.sha256, allowed_hosts=dependency.allowed_hosts, ) log.info(f"Successfully downloaded and extracted {package_name} version {package_version} from NuGet.org") return package_extract_dir except Exception as e: raise SolidLSPException(f"Failed to download package {package_name} version {package_version} from NuGet.org: {e}") from e def _create_base_initialize_params(self) -> dict: """ Returns the initialize params for the Microsoft.CodeAnalysis.LanguageServer. """ return { "capabilities": { "window": { "workDoneProgress": True, "showMessage": {"messageActionItem": {"additionalPropertiesSupport": True}}, "showDocument": {"support": True}, }, "workspace": { "applyEdit": True, "workspaceEdit": {"documentChanges": True}, "didChangeConfiguration": {"dynamicRegistration": True}, "didChangeWatchedFiles": {"dynamicRegistration": True}, "symbol": { "dynamicRegistration": True, "symbolKind": {"valueSet": list(range(1, 27))}, }, "executeCommand": {"dynamicRegistration": True}, "configuration": True, "workspaceFolders": True, "workDoneProgress": True, }, "textDocument": { "synchronization": {"dynamicRegistration": True, "willSave": True, "willSaveWaitUntil": True, "didSave": True}, "hover": {"dynamicRegistration": True, "contentFormat": ["markdown", "plaintext"]}, "signatureHelp": { "dynamicRegistration": True, "signatureInformation": { "documentationFormat": ["markdown", "plaintext"], "parameterInformation": {"labelOffsetSupport": True}, }, }, "definition": {"dynamicRegistration": True}, "references": {"dynamicRegistration": True}, "documentSymbol": { "dynamicRegistration": True, "symbolKind": {"valueSet": list(range(1, 27))}, "hierarchicalDocumentSymbolSupport": True, }, }, }, } def _start_server(self) -> None: indexing_complete = threading.Event() def do_nothing(params: dict) -> None: return def window_log_message(msg: dict) -> None: """Log messages from the language server.""" message_text = msg.get("message", "") level = msg.get("type", 4) # Default to Log level # Map LSP message types to Python logging levels level_map = {1: logging.ERROR, 2: logging.WARNING, 3: logging.INFO, 4: logging.DEBUG} # Error # Warning # Info # Log log.log(level_map.get(level, logging.DEBUG), f"LSP: {message_text}") def handle_progress(params: dict) -> None: """Handle progress notifications from the language server.""" token = params.get("token", "") value = params.get("value", {}) # Log raw progress for debugging log.debug(f"Progress notification received: {params}") # Handle different progress notification types kind = value.get("kind") if kind == "begin": title = value.get("title", "Operation in progress") message = value.get("message", "") percentage = value.get("percentage") if percentage is not None: log.debug(f"Progress [{token}]: {title} - {message} ({percentage}%)") else: log.info(f"Progress [{token}]: {title} - {message}") elif kind == "report": message = value.get("message", "") percentage = value.get("percentage") if percentage is not None: log.info(f"Progress [{token}]: {message} ({percentage}%)") elif message: log.info(f"Progress [{token}]: {message}") elif kind == "end": message = value.get("message", "Operation completed") log.info(f"Progress [{token}]: {message}") def handle_workspace_configuration(params: dict) -> list: """Handle workspace/configuration requests from the server.""" items = params.get("items", []) result: list[Any] = [] for item in items: section = item.get("section", "") # Provide default values based on the configuration section if section.startswith(("dotnet", "csharp")): # Default configuration for C# settings if "enable" in section or "show" in section or "suppress" in section or "navigate" in section: # Boolean settings result.append(False) elif "scope" in section: # Scope settings - use appropriate enum values if "analyzer_diagnostics_scope" in section: result.append("openFiles") # BackgroundAnalysisScope elif "compiler_diagnostics_scope" in section: result.append("openFiles") # CompilerDiagnosticsScope else: result.append("openFiles") elif section == "dotnet_member_insertion_location": # ImplementTypeInsertionBehavior enum result.append("with_other_members_of_the_same_kind") elif section == "dotnet_property_generation_behavior": # ImplementTypePropertyGenerationBehavior enum result.append("prefer_throwing_properties") elif "location" in section or "behavior" in section: # Other enum settings - return null to avoid parsing errors result.append(None) else: # Default for other dotnet/csharp settings result.append(None) elif section == "tab_width" or section == "indent_size": # Tab and indent settings result.append(4) elif section == "insert_final_newline": # Editor settings result.append(True) else: # Unknown configuration - return null result.append(None) return result def handle_work_done_progress_create(params: dict) -> None: """Handle work done progress create requests.""" # Just acknowledge the request return def handle_register_capability(params: dict) -> None: """Handle client/registerCapability requests.""" # Just acknowledge the request - we don't need to track these for now return def handle_project_needs_restore(params: dict) -> None: return def handle_workspace_indexing_complete(params: dict) -> None: indexing_complete.set() # Set up notification handlers self.server.on_notification("window/logMessage", window_log_message) self.server.on_notification("$/progress", handle_progress) self.server.on_notification("textDocument/publishDiagnostics", do_nothing) self.server.on_notification("workspace/projectInitializationComplete", handle_workspace_indexing_complete) self.server.on_request("workspace/configuration", handle_workspace_configuration) self.server.on_request("window/workDoneProgress/create", handle_work_done_progress_create) self.server.on_request("client/registerCapability", handle_register_capability) self.server.on_request("workspace/_roslyn_projectNeedsRestore", handle_project_needs_restore) log.info("Starting Microsoft.CodeAnalysis.LanguageServer process") try: self.server.start() except Exception as e: log.info(f"Failed to start language server process: {e}", logging.ERROR) raise SolidLSPException(f"Failed to start C# language server: {e}") # Send initialization initialize_params = self._create_initialize_params() log.info("Sending initialize request to language server") try: init_response = self.server.send.initialize(initialize_params) log.info(f"Received initialize response: {init_response}") except Exception as e: raise SolidLSPException(f"Failed to initialize C# language server for {self.repository_root_path}: {e}") from e # Apply diagnostic capabilities self._force_pull_diagnostics(init_response) # Verify required capabilities capabilities = init_response.get("capabilities", {}) required_capabilities = [ "textDocumentSync", "definitionProvider", "referencesProvider", "documentSymbolProvider", ] missing = [cap for cap in required_capabilities if cap not in capabilities] if missing: raise RuntimeError( f"Language server is missing required capabilities: {', '.join(missing)}. " "Initialization failed. Please ensure the correct version of Microsoft.CodeAnalysis.LanguageServer is installed and the .NET runtime is working." ) # Complete initialization self.server.notify.initialized({}) # Open solution and project files self._open_solution_and_projects() log.info( "Microsoft.CodeAnalysis.LanguageServer initialized and ready\n" "Waiting for language server to index project files...\n" "This may take a while for large projects" ) if indexing_complete.wait(30): # Wait up to 30 seconds for indexing log.info("Indexing complete") else: log.warning("Timeout waiting for indexing to complete, proceeding anyway") def _force_pull_diagnostics(self, init_response: dict | InitializeResult) -> None: """ Apply the diagnostic capabilities hack. Forces the server to support pull diagnostics. """ capabilities = init_response.get("capabilities", {}) diagnostic_provider: Any = capabilities.get("diagnosticProvider", {}) # Add the diagnostic capabilities hack if isinstance(diagnostic_provider, dict): diagnostic_provider.update( { "interFileDependencies": True, "workDoneProgress": True, "workspaceDiagnostics": True, } ) log.debug("Applied diagnostic capabilities hack for better C# diagnostics") def _open_solution_and_projects(self) -> None: """ Open solution and project files using notifications. """ # Find solution file (.sln or .slnx) solution_file = None for filename in breadth_first_file_scan(self.repository_root_path): if filename.endswith((".sln", ".slnx")): solution_file = filename break # Send solution/open notification if solution file found if solution_file: solution_uri = PathUtils.path_to_uri(solution_file) self.server.notify.send_notification("solution/open", {"solution": solution_uri}) log.debug(f"Opened solution file: {solution_file}") # Find and open project files, skipping any that the project's ignore settings exclude. # Vendored, third-party and sample trees routinely contain .csproj files that the language # server cannot restore or build. Each one costs a project load on every server start, and # the resulting restore failures bury the diagnostics of the projects the user cares about. project_files = [] skipped = 0 for filename in breadth_first_file_scan(self.repository_root_path): if not filename.endswith(".csproj"): continue relative_path = os.path.relpath(filename, self.repository_root_path) # ignore_unsupported_files=False, because a .csproj is not itself a C# source file and # would otherwise be excluded on file type rather than by the ignore patterns. if self.is_ignored_path(relative_path, ignore_unsupported_files=False): skipped += 1 continue project_files.append(filename) if skipped: log.debug(f"Skipped {skipped} .csproj file(s) matched by the project's ignore settings") # Send project/open notifications for each project file if project_files: project_uris = [PathUtils.path_to_uri(project_file) for project_file in project_files] self.server.notify.send_notification("project/open", {"projects": project_uris}) log.debug(f"Opened project files: {project_files}") @override def _get_wait_time_for_cross_file_referencing(self) -> float: return 2