More utility functions

- join("a", "b", "c", sep: ", ")
- int("12")
- float("31.4e-1")
- str(10)
- sorted((3, 2, 1))

1 files changed, 5 insertions, 0 deletions

diff --git a/src/eval/value.rs b/src/eval/value.rs
index 5edf0362..77cb766c 100644
--- a/src/eval/value.rs
+++ b/src/eval/value.rs
@@ -88,6 +88,11 @@ impl Value {
     {
         T::cast(self)
     }
+
+    /// Join the value with another value.
+    pub fn join(self, rhs: Self) -> StrResult<Self> {
+        ops::join(self, rhs)
+    }
 }
 
 impl Default for Value {