fixup: add stringIsEmpty helper (used by rsr-certifier no-workspace checks)

Author: hyperpolymath

packages/affine-vscode/mod.js

@@ -150,6 +150,7 @@ module.exports = function makeVscodeBindings(vscode, lcModule, hostShim) {
       const out = s.endsWith(suffix) ? s.slice(0, -suffix.length) + replacement : s;
       return reg(out);
     },
+    stringIsEmpty: (sPtr) => readString(sPtr).length === 0 ? 1 : 0,
 
     // ── Workspace ───────────────────────────────────────────────────
     workspaceFolderFirstPath: () => {

stdlib/Vscode.affine

@@ -130,6 +130,11 @@ pub extern fn stringReplaceSuffix(s: String,
                                    suffix: String,
                                    replacement: String) -> String;
 
+/// Returns 1 if `s` has zero length, 0 otherwise. Useful for testing the
+/// "no result" sentinel returned by getters like `workspaceFolderFirstPath`
+/// without needing a String=String primitive in the AffineScript surface.
+pub extern fn stringIsEmpty(s: String) -> Int;
+
 // ── Workspace ─────────────────────────────────────────────────────────
 
 /// First workspace folder's `uri.fsPath`, or "" if there is no workspace.