libexpr: Use table.size() instead of unnecessary loop

xokdvium · emilazy · commit 19d9a87c2f51 · 2025-08-16T01:20:12.000+01:00
(cherry picked from commit d8fc55a46e0c09241131097dbf1d6fa09e0a9808) Upstream-PR: NixOS/nix#13741 Change-Id: I8a11e21ae3bff3a885e13fbab74e1deb162a34cf
diff --git a/lix/libexpr/primops/fromTOML.cc b/lix/libexpr/primops/fromTOML.cc
@@ -18,14 +18,7 @@ void prim_fromTOML(EvalState & state, Value ** args, Value & val)
         switch (t.type()) {
         case toml::value_t::table: {
             auto table = toml::get<toml::table>(t);
-
-            size_t size = 0;
-            for (auto & i : table) {
-                (void) i;
-                size++;
-            }
-
-            auto attrs = state.ctx.buildBindings(size);
+            auto attrs = state.ctx.buildBindings(table.size());
 
             for (auto & elem : table) {
                 self(attrs.alloc(elem.first), elem.second);
