From d2296ab33bda8e4de7cb68f6a8daf17512e00494 Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Fri, 6 Mar 2020 15:49:38 +0800
Subject: [PATCH] Allow dot operator on function results; change debug print
 info for function registration.

---
 src/api.rs    | 12 ++++++------
 src/engine.rs |  7 ++++++-
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/src/api.rs b/src/api.rs
index 49553624..b27378f2 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -17,13 +17,13 @@ impl<'a> Engine<'a> {
         f: Box<FnAny>,
     ) {
         debug_println!(
-            "Register function: {} ({})",
+            "Register function: {} for {} parameter(s)",
             fn_name,
-            args.iter()
-                .map(|x| (*x).type_name())
-                .map(|name| self.map_type_name(name))
-                .collect::<Vec<_>>()
-                .join(", ")
+            if let Some(a) = &args {
+                format!("{}", a.len())
+            } else {
+                "no".to_string()
+            }
         );
 
         let spec = FnSpec {
diff --git a/src/engine.rs b/src/engine.rs
index 48b57199..b00db1f9 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -430,8 +430,13 @@ impl Engine<'_> {
                 value
             }
 
+            // {expr}.???
+            expr => {
+                let mut target = self.eval_expr(scope, expr)?;
+                self.get_dot_val_helper(scope, target.as_mut(), dot_rhs)
+            }
             // Syntax error
-            _ => Err(EvalAltResult::ErrorDotExpr(dot_lhs.position())),
+            //_ => Err(EvalAltResult::ErrorDotExpr(dot_lhs.position())),
         }
     }