Language Server improvements. (#2269)

* Language Server improvements.
- Improve parser robustness around `attribute_syntax`.
- Exclude instance members in a static query.
- Coloring accessors
- Improved signature help cursor range check.

* Add expected test result.

* Language server: support configuring predefined macros.

* Fix constructor highlighting.

* Improving performance by supporting incremental text change notifications.

* Fix UTF16 positions and highlighting of constructor calls.

* Add completion suggestions for HLSL semantics.

* Fix tests.

* Fix: don't skip static variables in a static query.

* Include literal init expr value in hover text.

* Fix scenarios where completion failed to trigger.

* Fixing language server protocol field initializations.

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 112 insertions, 2 deletions

diff --git a/source/compiler-core/slang-language-server-protocol.h b/source/compiler-core/slang-language-server-protocol.h
index e1ac47beb..11446bd0b 100644
--- a/source/compiler-core/slang-language-server-protocol.h
+++ b/source/compiler-core/slang-language-server-protocol.h
@@ -205,6 +205,33 @@ struct DidCloseTextDocumentParams
     static const UnownedStringSlice methodName;
 };
 
+struct WorkspaceFoldersServerCapabilities
+{
+    /**
+     * The server has support for workspace folders
+     */
+    bool supported = false;
+
+    /**
+     * Whether the server wants to receive workspace folder
+     * change notifications.
+     *
+     * If a string is provided, the string is treated as an ID
+     * under which the notification is registered on the client
+     * side. The ID can be used to unregister for these events
+     * using the `client/unregisterCapability` request.
+     */
+    bool changeNotifications = false;
+
+    static const StructRttiInfo g_rttiInfo;
+};
+
+struct WorkspaceCapabilities
+{
+    WorkspaceFoldersServerCapabilities workspaceFolders;
+    static const StructRttiInfo g_rttiInfo;
+};
+
 struct ServerCapabilities
 {
     String positionEncoding;
@@ -214,6 +241,7 @@ struct ServerCapabilities
     CompletionOptions completionProvider;
     SemanticTokensOptions semanticTokensProvider;
     SignatureHelpOptions signatureHelpProvider;
+    WorkspaceCapabilities workspace;
     static const StructRttiInfo g_rttiInfo;
 };
 
@@ -245,11 +273,13 @@ struct InitializeResult
     static const StructRttiInfo g_rttiInfo;
 };
 
-struct ShutdownParams {
+struct ShutdownParams
+{
     static const UnownedStringSlice methodName;
 };
 
-struct ExitParams {
+struct ExitParams
+{
     static const UnownedStringSlice methodName;
 };
 
@@ -630,5 +660,85 @@ struct SignatureHelp
 };
 
 
+struct DidChangeConfigurationParams
+{
+    /**
+     * The actual changed settings
+     */
+    JSONValue settings = JSONValue::makeInvalid();
+
+    static const StructRttiInfo g_rttiInfo;
+
+    static const UnownedStringSlice methodName;
+};
+
+struct ConfigurationItem
+{
+    /**
+     * The configuration section asked for.
+     */
+    String section;
+
+    static const StructRttiInfo g_rttiInfo;
+};
+
+struct ConfigurationParams
+{
+    List<ConfigurationItem> items;
+
+    static const StructRttiInfo g_rttiInfo;
+
+    static const UnownedStringSlice methodName;
+};
+
+struct Registration
+{
+    /**
+    * The id used to register the request. The id can be used to deregister
+    * the request again.
+    */
+    String id;
+
+    /**
+    * The method / capability to register for.
+    */
+    String method;
+
+    static const StructRttiInfo g_rttiInfo;
+};
+
+struct RegistrationParams
+{
+    List<Registration> registrations;
+
+    static const StructRttiInfo g_rttiInfo;
+};
+
+struct CancelParams
+{
+    /**
+     * The request id to cancel.
+     */
+    int64_t id = 0;
+
+    static const StructRttiInfo g_rttiInfo;
+};
+
+struct LogMessageParams
+{
+    /**
+     * The message type. See {@link MessageType}
+     */
+    int type = 0;
+
+    /**
+     * The actual message
+     */
+    String message;
+
+    static const StructRttiInfo g_rttiInfo;
+    static const UnownedStringSlice methodName;
+};
+
 } // namespace LanguageServerProtocol
 } // namespace Slang