LSP: Use char16_t literals for keys into json objects

Allows use of QStringView based QJson* functions.

Change-Id: I6f39306652bea3abecdcf9e1d4ae494a6b9101c7
Reviewed-by: David Schulz <david.schulz@qt.io>

10 files changed, 261 insertions, 260 deletions

diff --git a/src/libs/languageserverprotocol/basemessage.cpp b/src/libs/languageserverprotocol/basemessage.cpp
index 4e5f621ca01..ee0450010a3 100644
--- a/src/libs/languageserverprotocol/basemessage.cpp
+++ b/src/libs/languageserverprotocol/basemessage.cpp
@@ -37,6 +37,13 @@ namespace LanguageServerProtocol {
 
 Q_LOGGING_CATEGORY(parseLog, "qtc.languageserverprotocol.parse", QtWarningMsg)
 
+constexpr char headerFieldSeparator[] = ": ";
+constexpr char contentCharsetName[] = "charset";
+constexpr char defaultCharset[] = "utf-8";
+constexpr char contentLengthFieldName[] = "Content-Length";
+constexpr char headerSeparator[] = "\r\n";
+constexpr char contentTypeFieldName[] = "Content-Type";
+
 BaseMessage::BaseMessage()
     : mimeType(JsonRpcMessage::jsonRpcMimeType())
 { }
diff --git a/src/libs/languageserverprotocol/clientcapabilities.h b/src/libs/languageserverprotocol/clientcapabilities.h
index bc6151a1740..93a7181de76 100644
--- a/src/libs/languageserverprotocol/clientcapabilities.h
+++ b/src/libs/languageserverprotocol/clientcapabilities.h
@@ -626,7 +626,7 @@ public:
     void clearWorkDoneProgress() { remove(workDoneProgressKey); }
 
 private:
-    constexpr static const char workDoneProgressKey[] = "workDoneProgress";
+    constexpr static const char16_t workDoneProgressKey[] = u"workDoneProgress";
 };
 
 class LANGUAGESERVERPROTOCOL_EXPORT ClientCapabilities : public JsonObject
diff --git a/src/libs/languageserverprotocol/jsonkeys.h b/src/libs/languageserverprotocol/jsonkeys.h
index 3c520ebad93..a8e33ae0575 100644
--- a/src/libs/languageserverprotocol/jsonkeys.h
+++ b/src/libs/languageserverprotocol/jsonkeys.h
@@ -27,219 +27,213 @@
 
 namespace LanguageServerProtocol {
 
-constexpr char actionsKey[] = "actions";
-constexpr char activeParameterKey[] = "activeParameter";
-constexpr char activeParameterSupportKey[] = "activeParameterSupport";
-constexpr char activeSignatureKey[] = "activeSignature";
-constexpr char addedKey[] = "added";
-constexpr char additionalTextEditsKey[] = "additionalTextEdits";
-constexpr char alphaKey[] = "alpha";
-constexpr char appliedKey[] = "applied";
-constexpr char applyEditKey[] = "applyEdit";
-constexpr char argumentsKey[] = "arguments";
-constexpr char blueKey[] = "blue";
-constexpr char cancellableKey[] = "cancellable";
-constexpr char capabilitiesKey[] = "capabilities";
-constexpr char chKey[] = "ch";
-constexpr char changeKey[] = "change";
-constexpr char changeNotificationsKey[] = "changeNotifications";
-constexpr char changesKey[] = "changes";
-constexpr char characterKey[] = "character";
-constexpr char childrenKey[] = "children";
-constexpr char clientInfoKey[] = "clientInfo";
-constexpr char codeActionKey[] = "codeAction";
-constexpr char codeActionKindKey[] = "codeActionKind";
-constexpr char codeActionKindsKey[] = "codeActionKinds";
-constexpr char codeActionLiteralSupportKey[] = "codeActionLiteralSupport";
-constexpr char codeActionProviderKey[] = "codeActionProvider";
-constexpr char codeKey[] = "code";
-constexpr char codeLensKey[] = "codeLens";
-constexpr char codeLensProviderKey[] = "codeLensProvider";
-constexpr char colorInfoKey[] = "colorInfo";
-constexpr char colorKey[] = "color";
-constexpr char colorProviderKey[] = "colorProvider";
-constexpr char commandKey[] = "command";
-constexpr char commandsKey[] = "commands";
-constexpr char commitCharacterSupportKey[] = "commitCharacterSupport";
-constexpr char commitCharactersKey[] = "commitCharacters";
-constexpr char completionItemKey[] = "completionItem";
-constexpr char completionItemKindKey[] = "completionItemKind";
-constexpr char completionKey[] = "completion";
-constexpr char completionProviderKey[] = "completionProvider";
-constexpr char configurationKey[] = "configuration";
-constexpr char containerNameKey[] = "containerName";
-constexpr char contentChangesKey[] = "contentChanges";
-constexpr char contentCharsetName[] = "charset";
-constexpr char contentFormatKey[] = "contentFormat";
-constexpr char contentKey[] = "value";
-constexpr char contentLengthFieldName[] = "Content-Length";
-constexpr char contentTypeFieldName[] = "Content-Type";
-constexpr char contentsKey[] = "contents";
-constexpr char contextKey[] = "context";
-constexpr char contextSupportKey[] = "contextSupport";
-constexpr char dataKey[] = "data";
-constexpr char defaultCharset[] = "utf-8";
-constexpr char definitionKey[] = "definition";
-constexpr char definitionProviderKey[] = "definitionProvider";
-constexpr char deleteCountKey[] = "deleteCount";
-constexpr char deltaKey[] = "delta";
-constexpr char deprecatedKey[] = "deprecated";
-constexpr char detailKey[] = "detail";
-constexpr char diagnosticsKey[] = "diagnostics";
-constexpr char didChangeConfigurationKey[] = "didChangeConfiguration";
-constexpr char didChangeWatchedFilesKey[] = "didChangeWatchedFiles";
-constexpr char didSaveKey[] = "didSave";
-constexpr char documentChangesKey[] = "documentChanges";
-constexpr char documentFormattingProviderKey[] = "documentFormattingProvider";
-constexpr char documentHighlightKey[] = "documentHighlight";
-constexpr char documentHighlightProviderKey[] = "documentHighlightProvider";
-constexpr char documentLinkKey[] = "documentLink";
-constexpr char documentLinkProviderKey[] = "documentLinkProvider";
-constexpr char documentRangeFormattingProviderKey[] = "documentRangeFormattingProvider";
-constexpr char documentSelectorKey[] = "documentSelector";
-constexpr char documentSymbolKey[] = "documentSymbol";
-constexpr char documentSymbolProviderKey[] = "documentSymbolProvider";
-constexpr char documentationFormatKey[] = "documentationFormat";
-constexpr char documentationKey[] = "documentation";
-constexpr char dynamicRegistrationKey[] = "dynamicRegistration";
-constexpr char editKey[] = "edit";
-constexpr char editsKey[] = "edits";
-constexpr char endKey[] = "end";
-constexpr char errorKey[] = "error";
-constexpr char eventKey[] = "event";
-constexpr char executeCommandKey[] = "executeCommand";
-constexpr char executeCommandProviderKey[] = "executeCommandProvider";
-constexpr char experimentalKey[] = "experimental";
-constexpr char filterTextKey[] = "filterText";
-constexpr char firstTriggerCharacterKey[] = "firstTriggerCharacter";
-constexpr char formatsKey[] = "formats";
-constexpr char formattingKey[] = "formatting";
-constexpr char fullKey[] = "full";
-constexpr char greenKey[] = "green";
-constexpr char headerFieldSeparator[] = ": ";
-constexpr char headerSeparator[] = "\r\n";
-constexpr char hierarchicalDocumentSymbolSupportKey[] = "hierarchicalDocumentSymbolSupport";
-constexpr char hoverKey[] = "hover";
-constexpr char hoverProviderKey[] = "hoverProvider";
-constexpr char idKey[] = "id";
-constexpr char implementationKey[] = "implementation";
-constexpr char implementationProviderKey[] = "implementationProvider";
-constexpr char includeDeclarationKey[] = "includeDeclaration";
-constexpr char includeTextKey[] = "includeText";
-constexpr char initializationOptionsKey[] = "initializationOptions";
-constexpr char insertFinalNewlineKey[] = "insertFinalNewline";
-constexpr char insertSpaceKey[] = "insertSpace";
-constexpr char insertTextFormatKey[] = "insertTextFormat";
-constexpr char insertTextKey[] = "insertText";
-constexpr char isIncompleteKey[] = "isIncomplete";
-constexpr char itemsKey[] = "items";
-constexpr char jsonRpcVersionKey[] = "jsonrpc";
-constexpr char kindKey[] = "kind";
-constexpr char labelKey[] = "label";
-constexpr char languageIdKey[] = "languageId";
-constexpr char languageKey[] = "language";
-constexpr char legendKey[] = "legend";
-constexpr char lineKey[] = "line";
-constexpr char linesKey[] = "lines";
-constexpr char locationKey[] = "location";
-constexpr char messageKey[] = "message";
-constexpr char methodKey[] = "method";
-constexpr char moreTriggerCharacterKey[] = "moreTriggerCharacter";
-constexpr char multiLineTokenSupportKey[] = "multiLineTokenSupport";
-constexpr char nameKey[] = "name";
-constexpr char newNameKey[] = "newName";
-constexpr char newTextKey[] = "newText";
-constexpr char onTypeFormattingKey[] = "onTypeFormatting";
-constexpr char onlyKey[] = "only";
-constexpr char openCloseKey[] = "openClose";
-constexpr char optionsKey[] = "options";
-constexpr char overlappingTokenSupportKey[] = "overlappingTokenSupport";
-constexpr char parametersKey[] = "parameters";
-constexpr char paramsKey[] = "params";
-constexpr char patternKey[] = "pattern";
-constexpr char percentageKey[] = "percentage";
-constexpr char placeHolderKey[] = "placeHolder";
-constexpr char positionKey[] = "position";
-constexpr char prepareProviderKey[] = "prepareProvider";
-constexpr char prepareSupportKey[] = "prepareSupport";
-constexpr char previousResultIdKey[] = "previousResultId";
-constexpr char processIdKey[] = "processId";
-constexpr char queryKey[] = "query";
-constexpr char rangeFormattingKey[] = "rangeFormatting";
-constexpr char rangeKey[] = "range";
-constexpr char rangeLengthKey[] = "rangeLength";
-constexpr char reasonKey[] = "reason";
-constexpr char redKey[] = "red";
-constexpr char referencesKey[] = "references";
-constexpr char referencesProviderKey[] = "referencesProvider";
-constexpr char refreshSupportKey[] = "refreshSupport";
-constexpr char registerOptionsKey[] = "registerOptions";
-constexpr char registrationsKey[] = "registrations";
-constexpr char removedKey[] = "removed";
-constexpr char renameKey[] = "rename";
-constexpr char renameProviderKey[] = "renameProvider";
-constexpr char requestsKey[] = "requests";
-constexpr char resolveProviderKey[] = "resolveProvider";
-constexpr char resultIdKey[] = "resultId";
-constexpr char resultKey[] = "result";
-constexpr char retryKey[] = "retry";
-constexpr char rootPathKey[] = "rootPath";
-constexpr char rootUriKey[] = "rootUri";
-constexpr char saveKey[] = "save";
-constexpr char schemeKey[] = "scheme";
-constexpr char scopeUriKey[] = "scopeUri";
-constexpr char sectionKey[] = "section";
-constexpr char selectionRangeKey[] = "selectionRange";
-constexpr char semanticTokensKey[] = "semanticTokens";
-constexpr char semanticTokensProviderKey[] = "semanticTokensProvider";
-constexpr char serverInfoKey[] = "serverInfo";
-constexpr char settingsKey[] = "settings";
-constexpr char severityKey[] = "severity";
-constexpr char signatureHelpKey[] = "signatureHelp";
-constexpr char signatureHelpProviderKey[] = "signatureHelpProvider";
-constexpr char signatureInformationKey[] = "signatureInformation";
-constexpr char signaturesKey[] = "signatures";
-constexpr char snippetSupportKey[] = "snippetSupport";
-constexpr char sortTextKey[] = "sortText";
-constexpr char sourceKey[] = "source";
-constexpr char startKey[] = "start";
-constexpr char supportedKey[] = "supported";
-constexpr char symbolKey[] = "symbol";
-constexpr char symbolKindKey[] = "symbolKind";
-constexpr char syncKindKey[] = "syncKind";
-constexpr char synchronizationKey[] = "synchronization";
-constexpr char tabSizeKey[] = "tabSize";
-constexpr char tagsKey[] = "tags";
-constexpr char targetKey[] = "target";
-constexpr char textDocumentKey[] = "textDocument";
-constexpr char textDocumentSyncKey[] = "textDocumentSync";
-constexpr char textEditKey[] = "textEdit";
-constexpr char textKey[] = "text";
-constexpr char titleKey[] = "title";
-constexpr char tokenKey[] = "token";
-constexpr char tokenModifiersKey[] = "tokenModifiers";
-constexpr char tokenTypesKey[] = "tokenTypes";
-constexpr char traceKey[] = "trace";
-constexpr char triggerCharacterKey[] = "triggerCharacter";
-constexpr char triggerCharactersKey[] = "triggerCharacters";
-constexpr char triggerKindKey[] = "triggerKind";
-constexpr char trimFinalNewlinesKey[] = "trimFinalNewlines";
-constexpr char trimTrailingWhitespaceKey[] = "trimTrailingWhitespace";
-constexpr char typeDefinitionKey[] = "typeDefinition";
-constexpr char typeDefinitionProviderKey[] = "typeDefinitionProvider";
-constexpr char typeKey[] = "type";
-constexpr char unregistrationsKey[] = "unregistrations";
-constexpr char uriKey[] = "uri";
-constexpr char valueKey[] = "value";
-constexpr char valueSetKey[] = "valueSet";
-constexpr char versionKey[] = "version";
-constexpr char willSaveKey[] = "willSave";
-constexpr char willSaveWaitUntilKey[] = "willSaveWaitUntil";
-constexpr char windowKey[] = "window";
-constexpr char workDoneProgressKey[] = "workDoneProgress";
-constexpr char workspaceEditKey[] = "workspaceEdit";
-constexpr char workspaceFoldersKey[] = "workspaceFolders";
-constexpr char workspaceKey[] = "workspace";
-constexpr char workspaceSymbolProviderKey[] = "workspaceSymbolProvider";
+constexpr char16_t actionsKey[] = u"actions";
+constexpr char16_t activeParameterKey[] = u"activeParameter";
+constexpr char16_t activeParameterSupportKey[] = u"activeParameterSupport";
+constexpr char16_t activeSignatureKey[] = u"activeSignature";
+constexpr char16_t addedKey[] = u"added";
+constexpr char16_t additionalTextEditsKey[] = u"additionalTextEdits";
+constexpr char16_t alphaKey[] = u"alpha";
+constexpr char16_t appliedKey[] = u"applied";
+constexpr char16_t applyEditKey[] = u"applyEdit";
+constexpr char16_t argumentsKey[] = u"arguments";
+constexpr char16_t blueKey[] = u"blue";
+constexpr char16_t cancellableKey[] = u"cancellable";
+constexpr char16_t capabilitiesKey[] = u"capabilities";
+constexpr char16_t chKey[] = u"ch";
+constexpr char16_t changeKey[] = u"change";
+constexpr char16_t changeNotificationsKey[] = u"changeNotifications";
+constexpr char16_t changesKey[] = u"changes";
+constexpr char16_t characterKey[] = u"character";
+constexpr char16_t childrenKey[] = u"children";
+constexpr char16_t clientInfoKey[] = u"clientInfo";
+constexpr char16_t codeActionKey[] = u"codeAction";
+constexpr char16_t codeActionKindKey[] = u"codeActionKind";
+constexpr char16_t codeActionKindsKey[] = u"codeActionKinds";
+constexpr char16_t codeActionLiteralSupportKey[] = u"codeActionLiteralSupport";
+constexpr char16_t codeActionProviderKey[] = u"codeActionProvider";
+constexpr char16_t codeKey[] = u"code";
+constexpr char16_t codeLensKey[] = u"codeLens";
+constexpr char16_t codeLensProviderKey[] = u"codeLensProvider";
+constexpr char16_t colorInfoKey[] = u"colorInfo";
+constexpr char16_t colorKey[] = u"color";
+constexpr char16_t colorProviderKey[] = u"colorProvider";
+constexpr char16_t commandKey[] = u"command";
+constexpr char16_t commandsKey[] = u"commands";
+constexpr char16_t commitCharacterSupportKey[] = u"commitCharacterSupport";
+constexpr char16_t commitCharactersKey[] = u"commitCharacters";
+constexpr char16_t completionItemKey[] = u"completionItem";
+constexpr char16_t completionItemKindKey[] = u"completionItemKind";
+constexpr char16_t completionKey[] = u"completion";
+constexpr char16_t completionProviderKey[] = u"completionProvider";
+constexpr char16_t configurationKey[] = u"configuration";
+constexpr char16_t containerNameKey[] = u"containerName";
+constexpr char16_t contentChangesKey[] = u"contentChanges";
+constexpr char16_t contentFormatKey[] = u"contentFormat";
+constexpr char16_t contentKey[] = u"value";
+constexpr char16_t contentsKey[] = u"contents";
+constexpr char16_t contextKey[] = u"context";
+constexpr char16_t contextSupportKey[] = u"contextSupport";
+constexpr char16_t dataKey[] = u"data";
+constexpr char16_t definitionKey[] = u"definition";
+constexpr char16_t definitionProviderKey[] = u"definitionProvider";
+constexpr char16_t deleteCountKey[] = u"deleteCount";
+constexpr char16_t deltaKey[] = u"delta";
+constexpr char16_t deprecatedKey[] = u"deprecated";
+constexpr char16_t detailKey[] = u"detail";
+constexpr char16_t diagnosticsKey[] = u"diagnostics";
+constexpr char16_t didChangeConfigurationKey[] = u"didChangeConfiguration";
+constexpr char16_t didChangeWatchedFilesKey[] = u"didChangeWatchedFiles";
+constexpr char16_t didSaveKey[] = u"didSave";
+constexpr char16_t documentChangesKey[] = u"documentChanges";
+constexpr char16_t documentFormattingProviderKey[] = u"documentFormattingProvider";
+constexpr char16_t documentHighlightKey[] = u"documentHighlight";
+constexpr char16_t documentHighlightProviderKey[] = u"documentHighlightProvider";
+constexpr char16_t documentLinkKey[] = u"documentLink";
+constexpr char16_t documentLinkProviderKey[] = u"documentLinkProvider";
+constexpr char16_t documentRangeFormattingProviderKey[] = u"documentRangeFormattingProvider";
+constexpr char16_t documentSelectorKey[] = u"documentSelector";
+constexpr char16_t documentSymbolKey[] = u"documentSymbol";
+constexpr char16_t documentSymbolProviderKey[] = u"documentSymbolProvider";
+constexpr char16_t documentationFormatKey[] = u"documentationFormat";
+constexpr char16_t documentationKey[] = u"documentation";
+constexpr char16_t dynamicRegistrationKey[] = u"dynamicRegistration";
+constexpr char16_t editKey[] = u"edit";
+constexpr char16_t editsKey[] = u"edits";
+constexpr char16_t endKey[] = u"end";
+constexpr char16_t errorKey[] = u"error";
+constexpr char16_t eventKey[] = u"event";
+constexpr char16_t executeCommandKey[] = u"executeCommand";
+constexpr char16_t executeCommandProviderKey[] = u"executeCommandProvider";
+constexpr char16_t experimentalKey[] = u"experimental";
+constexpr char16_t filterTextKey[] = u"filterText";
+constexpr char16_t firstTriggerCharacterKey[] = u"firstTriggerCharacter";
+constexpr char16_t formatsKey[] = u"formats";
+constexpr char16_t formattingKey[] = u"formatting";
+constexpr char16_t fullKey[] = u"full";
+constexpr char16_t greenKey[] = u"green";
+constexpr char16_t hierarchicalDocumentSymbolSupportKey[] = u"hierarchicalDocumentSymbolSupport";
+constexpr char16_t hoverKey[] = u"hover";
+constexpr char16_t hoverProviderKey[] = u"hoverProvider";
+constexpr char16_t idKey[] = u"id";
+constexpr char16_t implementationKey[] = u"implementation";
+constexpr char16_t implementationProviderKey[] = u"implementationProvider";
+constexpr char16_t includeDeclarationKey[] = u"includeDeclaration";
+constexpr char16_t includeTextKey[] = u"includeText";
+constexpr char16_t initializationOptionsKey[] = u"initializationOptions";
+constexpr char16_t insertFinalNewlineKey[] = u"insertFinalNewline";
+constexpr char16_t insertSpaceKey[] = u"insertSpace";
+constexpr char16_t insertTextFormatKey[] = u"insertTextFormat";
+constexpr char16_t insertTextKey[] = u"insertText";
+constexpr char16_t isIncompleteKey[] = u"isIncomplete";
+constexpr char16_t itemsKey[] = u"items";
+constexpr char16_t jsonRpcVersionKey[] = u"jsonrpc";
+constexpr char16_t kindKey[] = u"kind";
+constexpr char16_t labelKey[] = u"label";
+constexpr char16_t languageIdKey[] = u"languageId";
+constexpr char16_t languageKey[] = u"language";
+constexpr char16_t legendKey[] = u"legend";
+constexpr char16_t lineKey[] = u"line";
+constexpr char16_t linesKey[] = u"lines";
+constexpr char16_t locationKey[] = u"location";
+constexpr char16_t messageKey[] = u"message";
+constexpr char16_t methodKey[] = u"method";
+constexpr char16_t moreTriggerCharacterKey[] = u"moreTriggerCharacter";
+constexpr char16_t multiLineTokenSupportKey[] = u"multiLineTokenSupport";
+constexpr char16_t nameKey[] = u"name";
+constexpr char16_t newNameKey[] = u"newName";
+constexpr char16_t newTextKey[] = u"newText";
+constexpr char16_t onTypeFormattingKey[] = u"onTypeFormatting";
+constexpr char16_t onlyKey[] = u"only";
+constexpr char16_t openCloseKey[] = u"openClose";
+constexpr char16_t optionsKey[] = u"options";
+constexpr char16_t overlappingTokenSupportKey[] = u"overlappingTokenSupport";
+constexpr char16_t parametersKey[] = u"parameters";
+constexpr char16_t paramsKey[] = u"params";
+constexpr char16_t patternKey[] = u"pattern";
+constexpr char16_t percentageKey[] = u"percentage";
+constexpr char16_t placeHolderKey[] = u"placeHolder";
+constexpr char16_t positionKey[] = u"position";
+constexpr char16_t prepareProviderKey[] = u"prepareProvider";
+constexpr char16_t prepareSupportKey[] = u"prepareSupport";
+constexpr char16_t previousResultIdKey[] = u"previousResultId";
+constexpr char16_t processIdKey[] = u"processId";
+constexpr char16_t queryKey[] = u"query";
+constexpr char16_t rangeFormattingKey[] = u"rangeFormatting";
+constexpr char16_t rangeKey[] = u"range";
+constexpr char16_t rangeLengthKey[] = u"rangeLength";
+constexpr char16_t reasonKey[] = u"reason";
+constexpr char16_t redKey[] = u"red";
+constexpr char16_t referencesKey[] = u"references";
+constexpr char16_t referencesProviderKey[] = u"referencesProvider";
+constexpr char16_t refreshSupportKey[] = u"refreshSupport";
+constexpr char16_t registerOptionsKey[] = u"registerOptions";
+constexpr char16_t registrationsKey[] = u"registrations";
+constexpr char16_t removedKey[] = u"removed";
+constexpr char16_t renameKey[] = u"rename";
+constexpr char16_t renameProviderKey[] = u"renameProvider";
+constexpr char16_t requestsKey[] = u"requests";
+constexpr char16_t resolveProviderKey[] = u"resolveProvider";
+constexpr char16_t resultIdKey[] = u"resultId";
+constexpr char16_t resultKey[] = u"result";
+constexpr char16_t retryKey[] = u"retry";
+constexpr char16_t rootPathKey[] = u"rootPath";
+constexpr char16_t rootUriKey[] = u"rootUri";
+constexpr char16_t saveKey[] = u"save";
+constexpr char16_t schemeKey[] = u"scheme";
+constexpr char16_t scopeUriKey[] = u"scopeUri";
+constexpr char16_t sectionKey[] = u"section";
+constexpr char16_t selectionRangeKey[] = u"selectionRange";
+constexpr char16_t semanticTokensKey[] = u"semanticTokens";
+constexpr char16_t semanticTokensProviderKey[] = u"semanticTokensProvider";
+constexpr char16_t serverInfoKey[] = u"serverInfo";
+constexpr char16_t settingsKey[] = u"settings";
+constexpr char16_t severityKey[] = u"severity";
+constexpr char16_t signatureHelpKey[] = u"signatureHelp";
+constexpr char16_t signatureHelpProviderKey[] = u"signatureHelpProvider";
+constexpr char16_t signatureInformationKey[] = u"signatureInformation";
+constexpr char16_t signaturesKey[] = u"signatures";
+constexpr char16_t snippetSupportKey[] = u"snippetSupport";
+constexpr char16_t sortTextKey[] = u"sortText";
+constexpr char16_t sourceKey[] = u"source";
+constexpr char16_t startKey[] = u"start";
+constexpr char16_t supportedKey[] = u"supported";
+constexpr char16_t symbolKey[] = u"symbol";
+constexpr char16_t symbolKindKey[] = u"symbolKind";
+constexpr char16_t syncKindKey[] = u"syncKind";
+constexpr char16_t synchronizationKey[] = u"synchronization";
+constexpr char16_t tabSizeKey[] = u"tabSize";
+constexpr char16_t tagsKey[] = u"tags";
+constexpr char16_t targetKey[] = u"target";
+constexpr char16_t textDocumentKey[] = u"textDocument";
+constexpr char16_t textDocumentSyncKey[] = u"textDocumentSync";
+constexpr char16_t textEditKey[] = u"textEdit";
+constexpr char16_t textKey[] = u"text";
+constexpr char16_t titleKey[] = u"title";
+constexpr char16_t tokenKey[] = u"token";
+constexpr char16_t tokenModifiersKey[] = u"tokenModifiers";
+constexpr char16_t tokenTypesKey[] = u"tokenTypes";
+constexpr char16_t traceKey[] = u"trace";
+constexpr char16_t triggerCharacterKey[] = u"triggerCharacter";
+constexpr char16_t triggerCharactersKey[] = u"triggerCharacters";
+constexpr char16_t triggerKindKey[] = u"triggerKind";
+constexpr char16_t trimFinalNewlinesKey[] = u"trimFinalNewlines";
+constexpr char16_t trimTrailingWhitespaceKey[] = u"trimTrailingWhitespace";
+constexpr char16_t typeDefinitionKey[] = u"typeDefinition";
+constexpr char16_t typeDefinitionProviderKey[] = u"typeDefinitionProvider";
+constexpr char16_t typeKey[] = u"type";
+constexpr char16_t unregistrationsKey[] = u"unregistrations";
+constexpr char16_t uriKey[] = u"uri";
+constexpr char16_t valueKey[] = u"value";
+constexpr char16_t valueSetKey[] = u"valueSet";
+constexpr char16_t versionKey[] = u"version";
+constexpr char16_t willSaveKey[] = u"willSave";
+constexpr char16_t willSaveWaitUntilKey[] = u"willSaveWaitUntil";
+constexpr char16_t windowKey[] = u"window";
+constexpr char16_t workDoneProgressKey[] = u"workDoneProgress";
+constexpr char16_t workspaceEditKey[] = u"workspaceEdit";
+constexpr char16_t workspaceFoldersKey[] = u"workspaceFolders";
+constexpr char16_t workspaceKey[] = u"workspace";
+constexpr char16_t workspaceSymbolProviderKey[] = u"workspaceSymbolProvider";
 
 } // namespace LanguageServerProtocol
diff --git a/src/libs/languageserverprotocol/jsonobject.cpp b/src/libs/languageserverprotocol/jsonobject.cpp
index 75edb76de3b..47d2bb7824c 100644
--- a/src/libs/languageserverprotocol/jsonobject.cpp
+++ b/src/libs/languageserverprotocol/jsonobject.cpp
@@ -37,12 +37,12 @@ JsonObject &JsonObject::operator=(JsonObject &&other)
     return *this;
 }
 
-QJsonObject::iterator JsonObject::insert(const QString &key, const JsonObject &object)
+QJsonObject::iterator JsonObject::insert(const QStringView key, const JsonObject &object)
 {
     return m_jsonObject.insert(key, object.m_jsonObject);
 }
 
-QJsonObject::iterator JsonObject::insert(const QString &key, const QJsonValue &value)
+QJsonObject::iterator JsonObject::insert(const QStringView key, const QJsonValue &value)
 {
     return m_jsonObject.insert(key, value);
 }
diff --git a/src/libs/languageserverprotocol/jsonobject.h b/src/libs/languageserverprotocol/jsonobject.h
index 9f27b478cd1..9dd172bbeff 100644
--- a/src/libs/languageserverprotocol/jsonobject.h
+++ b/src/libs/languageserverprotocol/jsonobject.h
@@ -67,88 +67,88 @@ public:
     const_iterator end() const { return m_jsonObject.end(); }
 
 protected:
-    iterator insert(const QString &key, const JsonObject &value);
-    iterator insert(const QString &key, const QJsonValue &value);
+    iterator insert(const QStringView key, const JsonObject &value);
+    iterator insert(const QStringView key, const QJsonValue &value);
 
     template <typename T, typename V>
-    iterator insertVariant(const QString &key, const V &variant);
+    iterator insertVariant(const QStringView key, const V &variant);
     template <typename T1, typename T2, typename... Args, typename V>
-    iterator insertVariant(const QString &key, const V &variant);
+    iterator insertVariant(const QStringView key, const V &variant);
 
     // QJSonObject redirections
-    QJsonValue value(const QString &key) const { return m_jsonObject.value(key); }
-    bool contains(const QString &key) const { return m_jsonObject.contains(key); }
-    iterator find(const QString &key) { return m_jsonObject.find(key); }
-    const_iterator find(const QString &key) const { return m_jsonObject.find(key); }
-    void remove(const QString &key) { m_jsonObject.remove(key); }
+    QJsonValue value(const QStringView key) const { return m_jsonObject.value(key); }
+    bool contains(const QStringView key) const { return m_jsonObject.contains(key); }
+    iterator find(const QStringView key) { return m_jsonObject.find(key); }
+    const_iterator find(const QStringView key) const { return m_jsonObject.find(key); }
+    void remove(const QStringView key) { m_jsonObject.remove(key); }
     QStringList keys() const { return m_jsonObject.keys(); }
 
     // convenience value access
     template<typename T>
-    T typedValue(const QString &key) const;
+    T typedValue(const QStringView key) const;
     template<typename T>
-    Utils::optional<T> optionalValue(const QString &key) const;
+    Utils::optional<T> optionalValue(const QStringView key) const;
     template<typename T>
-    LanguageClientValue<T> clientValue(const QString &key) const;
+    LanguageClientValue<T> clientValue(const QStringView key) const;
     template<typename T>
-    Utils::optional<LanguageClientValue<T>> optionalClientValue(const QString &key) const;
+    Utils::optional<LanguageClientValue<T>> optionalClientValue(const QStringView key) const;
     template<typename T>
-    QList<T> array(const QString &key) const;
+    QList<T> array(const QStringView key) const;
     template<typename T>
-    Utils::optional<QList<T>> optionalArray(const QString &key) const;
+    Utils::optional<QList<T>> optionalArray(const QStringView key) const;
     template<typename T>
-    LanguageClientArray<T> clientArray(const QString &key) const;
+    LanguageClientArray<T> clientArray(const QStringView key) const;
     template<typename T>
-    Utils::optional<LanguageClientArray<T>> optionalClientArray(const QString &key) const;
+    Utils::optional<LanguageClientArray<T>> optionalClientArray(const QStringView key) const;
     template<typename T>
-    void insertArray(const QString &key, const QList<T> &array);
+    void insertArray(const QStringView key, const QList<T> &array);
     template<typename>
-    void insertArray(const QString &key, const QList<JsonObject> &array);
+    void insertArray(const QStringView key, const QList<JsonObject> &array);
 
 private:
     QJsonObject m_jsonObject;
 };
 
 template<typename T, typename V>
-JsonObject::iterator JsonObject::insertVariant(const QString &key, const V &variant)
+JsonObject::iterator JsonObject::insertVariant(const QStringView key, const V &variant)
 {
     return Utils::holds_alternative<T>(variant) ? insert(key, Utils::get<T>(variant)) : end();
 }
 
 template<typename T1, typename T2, typename... Args, typename V>
-JsonObject::iterator JsonObject::insertVariant(const QString &key, const V &variant)
+JsonObject::iterator JsonObject::insertVariant(const QStringView key, const V &variant)
 {
     auto result = insertVariant<T1>(key, variant);
     return result != end() ? result : insertVariant<T2, Args...>(key, variant);
 }
 
 template<typename T>
-T JsonObject::typedValue(const QString &key) const
+T JsonObject::typedValue(const QStringView key) const
 {
     return fromJsonValue<T>(value(key));
 }
 
 template<typename T>
-Utils::optional<T> JsonObject::optionalValue(const QString &key) const
+Utils::optional<T> JsonObject::optionalValue(const QStringView key) const
 {
     const QJsonValue &val = value(key);
     return val.isUndefined() ? Utils::nullopt : Utils::make_optional(fromJsonValue<T>(val));
 }
 
 template<typename T>
-LanguageClientValue<T> JsonObject::clientValue(const QString &key) const
+LanguageClientValue<T> JsonObject::clientValue(const QStringView key) const
 {
     return LanguageClientValue<T>(value(key));
 }
 
 template<typename T>
-Utils::optional<LanguageClientValue<T>> JsonObject::optionalClientValue(const QString &key) const
+Utils::optional<LanguageClientValue<T>> JsonObject::optionalClientValue(const QStringView key) const
 {
     return contains(key) ? Utils::make_optional(clientValue<T>(key)) : Utils::nullopt;
 }
 
 template<typename T>
-QList<T> JsonObject::array(const QString &key) const
+QList<T> JsonObject::array(const QStringView key) const
 {
     if (const Utils::optional<QList<T>> &array = optionalArray<T>(key))
         return *array;
@@ -157,7 +157,7 @@ QList<T> JsonObject::array(const QString &key) const
 }
 
 template<typename T>
-Utils::optional<QList<T>> JsonObject::optionalArray(const QString &key) const
+Utils::optional<QList<T>> JsonObject::optionalArray(const QStringView key) const
 {
     const QJsonValue &jsonValue = value(key);
     if (jsonValue.isUndefined())
@@ -166,13 +166,13 @@ Utils::optional<QList<T>> JsonObject::optionalArray(const QString &key) const
 }
 
 template<typename T>
-LanguageClientArray<T> JsonObject::clientArray(const QString &key) const
+LanguageClientArray<T> JsonObject::clientArray(const QStringView key) const
 {
     return LanguageClientArray<T>(value(key));
 }
 
 template<typename T>
-Utils::optional<LanguageClientArray<T>> JsonObject::optionalClientArray(const QString &key) const
+Utils::optional<LanguageClientArray<T>> JsonObject::optionalClientArray(const QStringView key) const
 {
     const QJsonValue &val = value(key);
     return !val.isUndefined() ? Utils::make_optional(LanguageClientArray<T>(value(key)))
@@ -180,7 +180,7 @@ Utils::optional<LanguageClientArray<T>> JsonObject::optionalClientArray(const QS
 }
 
 template<typename T>
-void JsonObject::insertArray(const QString &key, const QList<T> &array)
+void JsonObject::insertArray(const QStringView key, const QList<T> &array)
 {
     QJsonArray jsonArray;
     for (const T &item : array)
@@ -189,7 +189,7 @@ void JsonObject::insertArray(const QString &key, const QList<T> &array)
 }
 
 template<typename >
-void JsonObject::insertArray(const QString &key, const QList<JsonObject> &array)
+void JsonObject::insertArray(const QStringView key, const QList<JsonObject> &array)
 {
     QJsonArray jsonArray;
     for (const JsonObject &item : array)
diff --git a/src/libs/languageserverprotocol/workspace.h b/src/libs/languageserverprotocol/workspace.h
index 235ddbe9a59..6179cd70005 100644
--- a/src/libs/languageserverprotocol/workspace.h
+++ b/src/libs/languageserverprotocol/workspace.h
@@ -188,7 +188,7 @@ public:
     QString query() const { return typedValue<QString>(queryKey); }
     void setQuery(const QString &query) { insert(queryKey, query); }
 
-    void setLimit(int limit) { insert("limit", limit); } // clangd extension
+    void setLimit(int limit) { insert(u"limit", limit); } // clangd extension
 
     bool isValid() const override { return contains(queryKey); }
 };
diff --git a/src/plugins/clangcodemodel/clangdast.cpp b/src/plugins/clangcodemodel/clangdast.cpp
index dbfaabea8c0..cc4f9708985 100644
--- a/src/plugins/clangcodemodel/clangdast.cpp
+++ b/src/plugins/clangcodemodel/clangdast.cpp
@@ -40,8 +40,8 @@ using namespace Utils;
 
 namespace ClangCodeModel::Internal {
 
-static constexpr char roleKey[] = "role";
-static constexpr char arcanaKey[] = "arcana";
+static constexpr char16_t roleKey[] = u"role";
+static constexpr char16_t arcanaKey[] = u"arcana";
 
 QString ClangdAstNode::role() const { return typedValue<QString>(roleKey); }
 QString ClangdAstNode::kind() const { return typedValue<QString>(kindKey); }
diff --git a/src/plugins/clangcodemodel/clangdclient.cpp b/src/plugins/clangcodemodel/clangdclient.cpp
index 82b0944901e..9e828900a7c 100644
--- a/src/plugins/clangcodemodel/clangdclient.cpp
+++ b/src/plugins/clangcodemodel/clangdclient.cpp
@@ -217,7 +217,7 @@ class SymbolDetails : public JsonObject
 public:
     using JsonObject::JsonObject;
 
-    static constexpr char usrKey[] = "usr";
+    static constexpr char16_t usrKey[] = u"usr";
 
     // the unqualified name of the symbol
     QString name() const { return typedValue<QString>(nameKey); }
@@ -341,8 +341,8 @@ class DiagnosticsCapabilities : public JsonObject
 {
 public:
     using JsonObject::JsonObject;
-    void enableCategorySupport() { insert("categorySupport", true); }
-    void enableCodeActionsInline() {insert("codeActionsInline", true);}
+    void enableCategorySupport() { insert(u"categorySupport", true); }
+    void enableCodeActionsInline() {insert(u"codeActionsInline", true);}
 };
 
 class ClangdTextDocumentClientCapabilities : public TextDocumentClientCapabilities
@@ -352,7 +352,7 @@ public:
 
 
     void setPublishDiagnostics(const DiagnosticsCapabilities &caps)
-    { insert("publishDiagnostics", caps); }
+    { insert(u"publishDiagnostics", caps); }
 };
 
 
@@ -674,7 +674,7 @@ public:
     explicit ClangdCompletionCapabilities(const JsonObject &object)
         : TextDocumentClientCapabilities::CompletionCapabilities(object)
     {
-        insert("editsNearCursor", true); // For dot-to-arrow correction.
+        insert(u"editsNearCursor", true); // For dot-to-arrow correction.
         if (Utils::optional<CompletionItemCapbilities> completionItemCaps = completionItem()) {
             completionItemCaps->setSnippetSupport(false);
             setCompletionItem(*completionItemCaps);
@@ -2176,7 +2176,7 @@ void ClangdClient::Private::handleSemanticTokens(TextDocument *doc,
 
 Utils::optional<QList<CodeAction> > ClangdDiagnostic::codeActions() const
 {
-    auto actions = optionalArray<LanguageServerProtocol::CodeAction>("codeActions");
+    auto actions = optionalArray<LanguageServerProtocol::CodeAction>(u"codeActions");
     if (!actions)
         return actions;
     static const QStringList badCodeActions{
@@ -2193,7 +2193,7 @@ Utils::optional<QList<CodeAction> > ClangdDiagnostic::codeActions() const
 
 QString ClangdDiagnostic::category() const
 {
-    return typedValue<QString>("category");
+    return typedValue<QString>(u"category");
 }
 
 class ClangdClient::ClangdFunctionHintProcessor : public FunctionHintProcessor
diff --git a/src/plugins/coco/cocolanguageclient.cpp b/src/plugins/coco/cocolanguageclient.cpp
index 45cb39e9f74..c26bd83bc45 100644
--- a/src/plugins/coco/cocolanguageclient.cpp
+++ b/src/plugins/coco/cocolanguageclient.cpp
@@ -260,7 +260,7 @@ public:
     void enableCodecoverageSupport()
     {
         JsonObject coverageSupport(QJsonObject{{"codeCoverageSupport", true}});
-        insert("publishDiagnostics", coverageSupport);
+        insert(u"publishDiagnostics", coverageSupport);
     }
 };
 
diff --git a/src/plugins/languageclient/lspinspector.cpp b/src/plugins/languageclient/lspinspector.cpp
index 97ef86b3316..051e168f263 100644
--- a/src/plugins/languageclient/lspinspector.cpp
+++ b/src/plugins/languageclient/lspinspector.cpp
@@ -549,7 +549,7 @@ QString LspLogMessage::displayText() const
     if (!m_displayText.has_value()) {
         m_displayText = QString(time.toString("hh:mm:ss.zzz") + '\n');
         m_displayText->append(
-            message.toJsonObject().value(QString{methodKey}).toString(id().toString()));
+            message.toJsonObject().value(methodKey).toString(id().toString()));
     }
     return *m_displayText;
 }