fix(lsp): support nested workspace registrations #39574

Problem:
Nested workspace capabilities like workspace.fileOperations.didCreate and
workspace.textDocumentContent are not handled consistently for dynamic and
static registration provider lookup.

Solution:
Generate explicit registration-provider mappings from the LSP metadata and use
them when registering and querying capabilities. Add coverage for dynamic and
static nested workspace registrations.

runtime/lua/vim/lsp/protocol.lua

@@ -1175,7 +1175,6 @@ protocol.Methods = {
 -- stylua: ignore start
 -- Generated by gen_lsp.lua, keep at end of file.
 --- Maps method names to the required client capability
----TODO: also has workspace/* items because spec lacks a top-level "workspaceProvider"
 protocol._provider_to_client_registration = {
   ['callHierarchyProvider'] = { 'textDocument', 'callHierarchy' },
   ['codeActionProvider'] = { 'textDocument', 'codeAction' },
@@ -1208,19 +1207,121 @@ protocol._provider_to_client_registration = {
   ['textDocumentSync'] = { 'textDocument', 'synchronization' },
   ['typeDefinitionProvider'] = { 'textDocument', 'typeDefinition' },
   ['typeHierarchyProvider'] = { 'textDocument', 'typeHierarchy' },
+  ['workspace.fileOperations.didCreate'] = { 'workspace', 'fileOperations', 'didCreate' },
+  ['workspace.fileOperations.didDelete'] = { 'workspace', 'fileOperations', 'didDelete' },
+  ['workspace.fileOperations.didRename'] = { 'workspace', 'fileOperations', 'didRename' },
+  ['workspace.fileOperations.willCreate'] = { 'workspace', 'fileOperations', 'willCreate' },
+  ['workspace.fileOperations.willDelete'] = { 'workspace', 'fileOperations', 'willDelete' },
+  ['workspace.fileOperations.willRename'] = { 'workspace', 'fileOperations', 'willRename' },
+  ['workspace.textDocumentContent'] = { 'workspace', 'textDocumentContent' },
   ['workspace/didChangeConfiguration'] = { 'workspace', 'didChangeConfiguration' },
   ['workspace/didChangeWatchedFiles'] = { 'workspace', 'didChangeWatchedFiles' },
-  ['workspace/didCreateFiles'] = { 'workspace', 'fileOperations', 'didCreate' },
-  ['workspace/didDeleteFiles'] = { 'workspace', 'fileOperations', 'didDelete' },
-  ['workspace/didRenameFiles'] = { 'workspace', 'fileOperations', 'didRename' },
-  ['workspace/textDocumentContent'] = { 'workspace', 'textDocumentContent' },
-  ['workspace/willCreateFiles'] = { 'workspace', 'fileOperations', 'willCreate' },
-  ['workspace/willDeleteFiles'] = { 'workspace', 'fileOperations', 'willDelete' },
-  ['workspace/willRenameFiles'] = { 'workspace', 'fileOperations', 'willRename' },
   ['workspaceSymbolProvider'] = { 'workspace', 'symbol' },
 }
 -- stylua: ignore end
 
+-- stylua: ignore start
+-- Generated by gen_lsp.lua, keep at end of file.
+--- Maps method names to dynamic/static registration providers
+protocol._request_name_to_registration_provider = {
+  ['callHierarchy/incomingCalls'] = 'callHierarchyProvider',
+  ['callHierarchy/outgoingCalls'] = 'callHierarchyProvider',
+  ['client/registerCapability'] = 'client/registerCapability',
+  ['client/unregisterCapability'] = 'client/unregisterCapability',
+  ['codeAction/resolve'] = 'codeActionProvider',
+  ['codeLens/resolve'] = 'codeLensProvider',
+  ['completionItem/resolve'] = 'completionProvider',
+  ['documentLink/resolve'] = 'documentLinkProvider',
+  ['$/cancelRequest'] = '$/cancelRequest',
+  ['$/logTrace'] = '$/logTrace',
+  ['$/progress'] = '$/progress',
+  ['$/setTrace'] = '$/setTrace',
+  ['exit'] = 'exit',
+  ['initialize'] = 'initialize',
+  ['initialized'] = 'initialized',
+  ['inlayHint/resolve'] = 'inlayHintProvider',
+  ['notebookDocument/didChange'] = 'notebookDocument/didChange',
+  ['notebookDocument/didClose'] = 'notebookDocument/didClose',
+  ['notebookDocument/didOpen'] = 'notebookDocument/didOpen',
+  ['notebookDocument/didSave'] = 'notebookDocument/didSave',
+  ['shutdown'] = 'shutdown',
+  ['telemetry/event'] = 'telemetry/event',
+  ['textDocument/codeAction'] = 'codeActionProvider',
+  ['textDocument/codeLens'] = 'codeLensProvider',
+  ['textDocument/colorPresentation'] = 'colorProvider',
+  ['textDocument/completion'] = 'completionProvider',
+  ['textDocument/declaration'] = 'declarationProvider',
+  ['textDocument/definition'] = 'definitionProvider',
+  ['textDocument/diagnostic'] = 'diagnosticProvider',
+  ['textDocument/didChange'] = 'textDocumentSync',
+  ['textDocument/didClose'] = 'textDocumentSync',
+  ['textDocument/didOpen'] = 'textDocumentSync',
+  ['textDocument/didSave'] = 'textDocumentSync',
+  ['textDocument/documentColor'] = 'colorProvider',
+  ['textDocument/documentHighlight'] = 'documentHighlightProvider',
+  ['textDocument/documentLink'] = 'documentLinkProvider',
+  ['textDocument/documentSymbol'] = 'documentSymbolProvider',
+  ['textDocument/foldingRange'] = 'foldingRangeProvider',
+  ['textDocument/formatting'] = 'documentFormattingProvider',
+  ['textDocument/hover'] = 'hoverProvider',
+  ['textDocument/implementation'] = 'implementationProvider',
+  ['textDocument/inlayHint'] = 'inlayHintProvider',
+  ['textDocument/inlineCompletion'] = 'inlineCompletionProvider',
+  ['textDocument/inlineValue'] = 'inlineValueProvider',
+  ['textDocument/linkedEditingRange'] = 'linkedEditingRangeProvider',
+  ['textDocument/moniker'] = 'monikerProvider',
+  ['textDocument/onTypeFormatting'] = 'documentOnTypeFormattingProvider',
+  ['textDocument/prepareCallHierarchy'] = 'callHierarchyProvider',
+  ['textDocument/prepareRename'] = 'renameProvider',
+  ['textDocument/prepareTypeHierarchy'] = 'typeHierarchyProvider',
+  ['textDocument/publishDiagnostics'] = 'textDocument/publishDiagnostics',
+  ['textDocument/rangeFormatting'] = 'documentRangeFormattingProvider',
+  ['textDocument/rangesFormatting'] = 'documentRangeFormattingProvider',
+  ['textDocument/references'] = 'referencesProvider',
+  ['textDocument/rename'] = 'renameProvider',
+  ['textDocument/selectionRange'] = 'selectionRangeProvider',
+  ['textDocument/semanticTokens/full'] = 'semanticTokensProvider',
+  ['textDocument/semanticTokens/full/delta'] = 'semanticTokensProvider',
+  ['textDocument/semanticTokens/range'] = 'semanticTokensProvider',
+  ['textDocument/signatureHelp'] = 'signatureHelpProvider',
+  ['textDocument/typeDefinition'] = 'typeDefinitionProvider',
+  ['textDocument/willSave'] = 'textDocumentSync',
+  ['textDocument/willSaveWaitUntil'] = 'textDocumentSync',
+  ['typeHierarchy/subtypes'] = 'typeHierarchy/subtypes',
+  ['typeHierarchy/supertypes'] = 'typeHierarchy/supertypes',
+  ['window/logMessage'] = 'window/logMessage',
+  ['window/showDocument'] = 'window/showDocument',
+  ['window/showMessage'] = 'window/showMessage',
+  ['window/showMessageRequest'] = 'window/showMessageRequest',
+  ['window/workDoneProgress/cancel'] = 'window/workDoneProgress/cancel',
+  ['window/workDoneProgress/create'] = 'window/workDoneProgress/create',
+  ['workspaceSymbol/resolve'] = 'workspaceSymbolProvider',
+  ['workspace/applyEdit'] = 'workspace/applyEdit',
+  ['workspace/codeLens/refresh'] = 'workspace/codeLens/refresh',
+  ['workspace/configuration'] = 'workspace/configuration',
+  ['workspace/diagnostic'] = 'diagnosticProvider',
+  ['workspace/diagnostic/refresh'] = 'workspace/diagnostic/refresh',
+  ['workspace/didChangeConfiguration'] = 'workspace/didChangeConfiguration',
+  ['workspace/didChangeWatchedFiles'] = 'workspace/didChangeWatchedFiles',
+  ['workspace/didChangeWorkspaceFolders'] = 'workspace.workspaceFolders.changeNotifications',
+  ['workspace/didCreateFiles'] = 'workspace.fileOperations.didCreate',
+  ['workspace/didDeleteFiles'] = 'workspace.fileOperations.didDelete',
+  ['workspace/didRenameFiles'] = 'workspace.fileOperations.didRename',
+  ['workspace/executeCommand'] = 'executeCommandProvider',
+  ['workspace/foldingRange/refresh'] = 'workspace/foldingRange/refresh',
+  ['workspace/inlayHint/refresh'] = 'workspace/inlayHint/refresh',
+  ['workspace/inlineValue/refresh'] = 'workspace/inlineValue/refresh',
+  ['workspace/semanticTokens/refresh'] = 'workspace/semanticTokens/refresh',
+  ['workspace/symbol'] = 'workspaceSymbolProvider',
+  ['workspace/textDocumentContent'] = 'workspace.textDocumentContent',
+  ['workspace/textDocumentContent/refresh'] = 'workspace/textDocumentContent/refresh',
+  ['workspace/willCreateFiles'] = 'workspace.fileOperations.willCreate',
+  ['workspace/willDeleteFiles'] = 'workspace.fileOperations.willDelete',
+  ['workspace/willRenameFiles'] = 'workspace.fileOperations.willRename',
+  ['workspace/workspaceFolders'] = 'workspace.workspaceFolders',
+}
+-- stylua: ignore end
+
 -- stylua: ignore start
 -- Generated by gen_lsp.lua, keep at end of file.
 --- Maps method names to the required server capability
@@ -1389,39 +1490,25 @@ protocol._method_supports_dynamic_registration = {
 -- stylua: ignore start
 -- Generated by gen_lsp.lua, keep at end of file.
 protocol._method_supports_static_registration = {
-  ['textDocument/codeAction'] = true,
-  ['textDocument/codeLens'] = true,
+  ['callHierarchy/incomingCalls'] = true,
+  ['callHierarchy/outgoingCalls'] = 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/semanticTokens/full/delta'] = true,
   ['textDocument/typeDefinition'] = true,
-  ['workspace/executeCommand'] = true,
-  ['workspace/symbol'] = true,
+  ['workspace/textDocumentContent'] = true,
 }
 -- stylua: ignore end