From d66666f2006c7e9e60ef491563c406f529a21af8 Mon Sep 17 00:00:00 2001
From: Novan <25704935+nofun97@users.noreply.github.com>
Date: Tue, 22 Feb 2022 10:07:47 +1100
Subject: [PATCH] ensure stdlib is loaded once for //eval.eval (#249)

Previously, //eval.eval calls SafeStdScopeTuple function which rebuilds the stdlib. This is unnecessary as the function SafeStdScope uses sync.Once which avoids rebuilding the arrai stdlib. This commit ensures that //eval.eval loads stdlib once by calling SafeStdScope.
---
 syntax/std_eval.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/syntax/std_eval.go b/syntax/std_eval.go
index 4a757657..bc675084 100644
--- a/syntax/std_eval.go
+++ b/syntax/std_eval.go
@@ -45,7 +45,7 @@ func contextualEval(ctx context.Context, config EvalConfig, v rel.Value) (rel.Va
 		}
 		scope = scope.With("//", localLib)
 	} else {
-		scope = scope.With("//", SafeStdScopeTuple())
+		scope = scope.Update(SafeStdScope())
 	}
 	for e := config.scopes.Enumerator(); e.MoveNext(); {
 		name, value := e.Current()