refactor(lsp): centralize provider capability resolution #37221

- Refactor LSP client to use unified provider-based capability lookup for
  diagnostics and other features.
- Introduce `_provider_value_get` to abstract capability retrieval,
  supporting both static and dynamic registrations.
- Update diagnostic handling and protocol mappings to leverage
  provider-centric logic.

1 files changed, 93 insertions, 66 deletions

diff --git a/runtime/lua/vim/lsp/protocol.lua b/runtime/lua/vim/lsp/protocol.lua
index 3aa9325d47..979acb5db8 100644
--- a/runtime/lua/vim/lsp/protocol.lua
+++ b/runtime/lua/vim/lsp/protocol.lua
@@ -613,6 +613,15 @@ function protocol.make_client_capabilities()
       diagnostics = {
         refreshSupport = true,
       },
+      fileOperations = {
+        dynamicRegistration = false,
+        didCreate = false,
+        willCreate = false,
+        didRename = false,
+        willRename = false,
+        didDelete = false,
+        willDelete = false,
+      },
     },
     experimental = nil,
     window = {
@@ -1160,79 +1169,49 @@ protocol.Methods = {
 -- stylua: ignore start
 -- Generated by gen_lsp.lua, keep at end of file.
 --- Maps method names to the required client capability
-protocol._request_name_to_client_capability = {
-  ['codeAction/resolve'] = { 'textDocument', 'codeAction', 'resolveSupport' },
-  ['codeLens/resolve'] = { 'textDocument', 'codeLens', 'resolveSupport' },
-  ['completionItem/resolve'] = { 'textDocument', 'completion', 'completionItem', 'resolveSupport' },
-  ['documentLink/resolve'] = { 'textDocument', 'documentLink' },
-  ['inlayHint/resolve'] = { 'textDocument', 'inlayHint', 'resolveSupport' },
-  ['textDocument/codeAction'] = { 'textDocument', 'codeAction' },
-  ['textDocument/codeLens'] = { 'textDocument', 'codeLens' },
-  ['textDocument/colorPresentation'] = { 'textDocument', 'colorProvider' },
-  ['textDocument/completion'] = { 'textDocument', 'completion' },
-  ['textDocument/declaration'] = { 'textDocument', 'declaration' },
-  ['textDocument/definition'] = { 'textDocument', 'definition' },
-  ['textDocument/diagnostic'] = { 'textDocument', 'diagnostic' },
-  ['textDocument/didChange'] = { 'textDocument', 'synchronization' },
-  ['textDocument/didClose'] = { 'textDocument', 'synchronization' },
-  ['textDocument/didOpen'] = { 'textDocument', 'synchronization' },
-  ['textDocument/didSave'] = { 'textDocument', 'synchronization', 'didSave' },
-  ['textDocument/documentColor'] = { 'textDocument', 'colorProvider' },
-  ['textDocument/documentHighlight'] = { 'textDocument', 'documentHighlight' },
-  ['textDocument/documentLink'] = { 'textDocument', 'documentLink' },
-  ['textDocument/documentSymbol'] = { 'textDocument', 'documentSymbol' },
-  ['textDocument/foldingRange'] = { 'textDocument', 'foldingRange' },
-  ['textDocument/formatting'] = { 'textDocument', 'formatting' },
-  ['textDocument/hover'] = { 'textDocument', 'hover' },
-  ['textDocument/implementation'] = { 'textDocument', 'implementation' },
-  ['textDocument/inlayHint'] = { 'textDocument', 'inlayHint' },
-  ['textDocument/inlineCompletion'] = { 'textDocument', 'inlineCompletion' },
-  ['textDocument/inlineValue'] = { 'textDocument', 'inlineValue' },
-  ['textDocument/linkedEditingRange'] = { 'textDocument', 'linkedEditingRange' },
-  ['textDocument/moniker'] = { 'textDocument', 'moniker' },
-  ['textDocument/onTypeFormatting'] = { 'textDocument', 'onTypeFormatting' },
-  ['textDocument/prepareCallHierarchy'] = { 'textDocument', 'callHierarchy' },
-  ['textDocument/prepareRename'] = { 'textDocument', 'rename', 'prepareSupport' },
-  ['textDocument/prepareTypeHierarchy'] = { 'textDocument', 'typeHierarchy' },
-  ['textDocument/publishDiagnostics'] = { 'textDocument', 'publishDiagnostics' },
-  ['textDocument/rangeFormatting'] = { 'textDocument', 'rangeFormatting' },
-  ['textDocument/rangesFormatting'] = { 'textDocument', 'rangeFormatting', 'rangesSupport' },
-  ['textDocument/references'] = { 'textDocument', 'references' },
-  ['textDocument/rename'] = { 'textDocument', 'rename' },
-  ['textDocument/selectionRange'] = { 'textDocument', 'selectionRange' },
-  ['textDocument/semanticTokens/full'] = { 'textDocument', 'semanticTokens' },
-  ['textDocument/semanticTokens/full/delta'] = { 'textDocument', 'semanticTokens', 'requests', 'full', 'delta' },
-  ['textDocument/semanticTokens/range'] = { 'textDocument', 'semanticTokens', 'requests', 'range' },
-  ['textDocument/signatureHelp'] = { 'textDocument', 'signatureHelp' },
-  ['textDocument/typeDefinition'] = { 'textDocument', 'typeDefinition' },
-  ['textDocument/willSave'] = { 'textDocument', 'synchronization', 'willSave' },
-  ['textDocument/willSaveWaitUntil'] = { 'textDocument', 'synchronization', 'willSaveWaitUntil' },
-  ['window/showDocument'] = { 'window', 'showDocument', 'support' },
-  ['window/showMessage'] = { 'window', 'showMessage' },
-  ['window/showMessageRequest'] = { 'window', 'showMessage' },
-  ['window/workDoneProgress/create'] = { 'window', 'workDoneProgress' },
-  ['workspaceSymbol/resolve'] = { 'workspace', 'symbol', 'resolveSupport' },
-  ['workspace/applyEdit'] = { 'workspace', 'applyEdit' },
-  ['workspace/codeLens/refresh'] = { 'workspace', 'codeLens' },
-  ['workspace/configuration'] = { 'workspace', 'configuration' },
-  ['workspace/diagnostic'] = { 'workspace', 'diagnostics' },
-  ['workspace/diagnostic/refresh'] = { 'workspace', 'diagnostics', 'refreshSupport' },
+---TODO: also has workspace/* items because spec lacks a top-level "workspaceProvider"
+protocol._provider_to_client_registration = {
+  ['callHierarchyProvider'] = { 'textDocument', 'callHierarchy' },
+  ['codeActionProvider'] = { 'textDocument', 'codeAction' },
+  ['codeLensProvider'] = { 'textDocument', 'codeLens' },
+  ['colorProvider'] = { 'textDocument', 'colorProvider' },
+  ['completionProvider'] = { 'textDocument', 'completion' },
+  ['declarationProvider'] = { 'textDocument', 'declaration' },
+  ['definitionProvider'] = { 'textDocument', 'definition' },
+  ['diagnosticProvider'] = { 'textDocument', 'diagnostic' },
+  ['documentFormattingProvider'] = { 'textDocument', 'formatting' },
+  ['documentHighlightProvider'] = { 'textDocument', 'documentHighlight' },
+  ['documentLinkProvider'] = { 'textDocument', 'documentLink' },
+  ['documentOnTypeFormattingProvider'] = { 'textDocument', 'onTypeFormatting' },
+  ['documentRangeFormattingProvider'] = { 'textDocument', 'rangeFormatting' },
+  ['documentSymbolProvider'] = { 'textDocument', 'documentSymbol' },
+  ['executeCommandProvider'] = { 'workspace', 'executeCommand' },
+  ['foldingRangeProvider'] = { 'textDocument', 'foldingRange' },
+  ['hoverProvider'] = { 'textDocument', 'hover' },
+  ['implementationProvider'] = { 'textDocument', 'implementation' },
+  ['inlayHintProvider'] = { 'textDocument', 'inlayHint' },
+  ['inlineCompletionProvider'] = { 'textDocument', 'inlineCompletion' },
+  ['inlineValueProvider'] = { 'textDocument', 'inlineValue' },
+  ['linkedEditingRangeProvider'] = { 'textDocument', 'linkedEditingRange' },
+  ['monikerProvider'] = { 'textDocument', 'moniker' },
+  ['referencesProvider'] = { 'textDocument', 'references' },
+  ['renameProvider'] = { 'textDocument', 'rename' },
+  ['selectionRangeProvider'] = { 'textDocument', 'selectionRange' },
+  ['semanticTokensProvider'] = { 'textDocument', 'semanticTokens' },
+  ['signatureHelpProvider'] = { 'textDocument', 'signatureHelp' },
+  ['textDocumentSync'] = { 'textDocument', 'synchronization' },
+  ['typeDefinitionProvider'] = { 'textDocument', 'typeDefinition' },
+  ['typeHierarchyProvider'] = { 'textDocument', 'typeHierarchy' },
   ['workspace/didChangeConfiguration'] = { 'workspace', 'didChangeConfiguration' },
   ['workspace/didChangeWatchedFiles'] = { 'workspace', 'didChangeWatchedFiles' },
   ['workspace/didCreateFiles'] = { 'workspace', 'fileOperations', 'didCreate' },
   ['workspace/didDeleteFiles'] = { 'workspace', 'fileOperations', 'didDelete' },
   ['workspace/didRenameFiles'] = { 'workspace', 'fileOperations', 'didRename' },
-  ['workspace/executeCommand'] = { 'workspace', 'executeCommand' },
-  ['workspace/foldingRange/refresh'] = { 'workspace', 'foldingRange', 'refreshSupport' },
-  ['workspace/inlayHint/refresh'] = { 'workspace', 'inlayHint', 'refreshSupport' },
-  ['workspace/inlineValue/refresh'] = { 'workspace', 'inlineValue', 'refreshSupport' },
-  ['workspace/semanticTokens/refresh'] = { 'workspace', 'semanticTokens', 'refreshSupport' },
-  ['workspace/symbol'] = { 'workspace', 'symbol' },
   ['workspace/textDocumentContent'] = { 'workspace', 'textDocumentContent' },
   ['workspace/willCreateFiles'] = { 'workspace', 'fileOperations', 'willCreate' },
   ['workspace/willDeleteFiles'] = { 'workspace', 'fileOperations', 'willDelete' },
   ['workspace/willRenameFiles'] = { 'workspace', 'fileOperations', 'willRename' },
-  ['workspace/workspaceFolders'] = { 'workspace', 'workspaceFolders' },
+  ['workspaceSymbolProvider'] = { 'workspace', 'symbol' },
 }
 -- stylua: ignore end
 
@@ -1299,13 +1278,13 @@ protocol._request_name_to_server_capability = {
   ['workspace/willRenameFiles'] = { 'workspace', 'fileOperations', 'willRename' },
   ['workspace/workspaceFolders'] = { 'workspace', 'workspaceFolders' },
   ['textDocument/semanticTokens'] = { 'semanticTokensProvider' },
+  ['workspace/didChangeWatchedFiles'] = { 'workspace/didChangeWatchedFiles' },
 }
 -- stylua: ignore end
 
 -- stylua: ignore start
 -- Generated by gen_lsp.lua, keep at end of file.
---- Maps method names to the required client capability
-protocol._request_name_allows_registration = {
+protocol._method_supports_dynamic_registration = {
   ['notebookDocument/didChange'] = true,
   ['notebookDocument/didClose'] = true,
   ['notebookDocument/didOpen'] = true,
@@ -1351,6 +1330,7 @@ protocol._request_name_allows_registration = {
   ['textDocument/willSaveWaitUntil'] = true,
   ['workspace/didChangeConfiguration'] = true,
   ['workspace/didChangeWatchedFiles'] = true,
+  ['workspace/didChangeWorkspaceFolders'] = true,
   ['workspace/didCreateFiles'] = true,
   ['workspace/didDeleteFiles'] = true,
   ['workspace/didRenameFiles'] = true,
@@ -1363,4 +1343,51 @@ protocol._request_name_allows_registration = {
 }
 -- stylua: ignore end
 
+-- stylua: ignore start
+-- Generated by gen_lsp.lua, keep at end of file.
+protocol._method_supports_static_registration = {
+  ['textDocument/codeAction'] = true,
+  ['textDocument/codeLens'] = true,
+  ['textDocument/colorPresentation'] = true,
+  ['textDocument/completion'] = true,
+  ['textDocument/declaration'] = true,
+  ['textDocument/definition'] = true,
+  ['textDocument/diagnostic'] = true,
+  ['textDocument/didChange'] = true,
+  ['textDocument/documentColor'] = true,
+  ['textDocument/documentHighlight'] = true,
+  ['textDocument/documentLink'] = true,
+  ['textDocument/documentSymbol'] = true,
+  ['textDocument/foldingRange'] = true,
+  ['textDocument/formatting'] = true,
+  ['textDocument/hover'] = true,
+  ['textDocument/implementation'] = true,
+  ['textDocument/inlayHint'] = true,
+  ['textDocument/inlineCompletion'] = true,
+  ['textDocument/inlineValue'] = true,
+  ['textDocument/linkedEditingRange'] = true,
+  ['textDocument/moniker'] = true,
+  ['textDocument/onTypeFormatting'] = true,
+  ['textDocument/prepareCallHierarchy'] = true,
+  ['textDocument/prepareTypeHierarchy'] = true,
+  ['textDocument/rangeFormatting'] = true,
+  ['textDocument/references'] = true,
+  ['textDocument/rename'] = true,
+  ['textDocument/selectionRange'] = true,
+  ['textDocument/semanticTokens/full'] = true,
+  ['textDocument/signatureHelp'] = true,
+  ['textDocument/typeDefinition'] = true,
+  ['workspace/executeCommand'] = true,
+  ['workspace/symbol'] = true,
+}
+-- stylua: ignore end
+
+-- stylua: ignore start
+-- Generated by gen_lsp.lua, keep at end of file.
+-- These methods have no registration options but can still be registered dynamically.
+protocol._methods_with_no_registration_options = {
+  ['workspace/didChangeWorkspaceFolders'] = true ,
+}
+-- stylua: ignore end
+
 return protocol