[clang-tools-extra] [clangd] Check for editsNearCursor client capability under experimental capabilities (PR #114699)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clangd

Author: Nathan Ridge (HighCommander4)

<details>
<summary>Changes</summary>

This is done to support clients which only support adding custom (language-specific or server-specific) capabilities under 'experimental'.

Fixes https://github.com/clangd/clangd/issues/2201

---
Full diff: https://github.com/llvm/llvm-project/pull/114699.diff


1 Files Affected:

- (modified) clang-tools-extra/clangd/Protocol.cpp (+10) 


``````````diff
diff --git a/clang-tools-extra/clangd/Protocol.cpp b/clang-tools-extra/clangd/Protocol.cpp
index c08f80442eaa06..5a303123b5ce84 100644
--- a/clang-tools-extra/clangd/Protocol.cpp
+++ b/clang-tools-extra/clangd/Protocol.cpp
@@ -504,6 +504,16 @@ bool fromJSON(const llvm::json::Value &Params, ClientCapabilities &R,
                   P.field("offsetEncoding")))
       return false;
   }
+
+  if (auto *Experimental = O->getObject("experimental")) {
+    if (auto *TextDocument = Experimental->getObject("textDocument")) {
+      if (auto *Completion = TextDocument->getObject("completion")) {
+        if (auto EditsNearCursor = Completion->getBoolean("editsNearCursor"))
+          R.CompletionFixes |= *EditsNearCursor;
+      }
+    }
+  }
+
   return true;
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/114699