Yet more improvements to error messaging.

2 files changed, 14 insertions, 5 deletions

diff --git a/stdlib/source/lux/control/exception.lux b/stdlib/source/lux/control/exception.lux
index 5d241b0c6..cc8635b13 100644
--- a/stdlib/source/lux/control/exception.lux
+++ b/stdlib/source/lux/control/exception.lux
@@ -109,18 +109,27 @@
                                             (~ (maybe.default (' "") body))))})))))
       )))
 
+(def: header-separator ": ")
+
 (def: #export (report' entries)
   (-> (List [Text Text]) Text)
   (let [largest-header-size (|> entries
                                 (list@map (|>> product.left text.size))
-                                (list@fold n/max 0))]
+                                (list@fold n/max 0))
+        on-new-line (|> " "
+                        (list.repeat (n/+ (text.size header-separator)
+                                          largest-header-size))
+                        (text.join-with "")
+                        (text@compose text.new-line))]
     (|> entries
         (list@map (function (_ [header message])
                     (let [padding (|> " "
                                       (list.repeat (n/- (text.size header)
                                                         largest-header-size))
                                       (text.join-with ""))]
-                      ($_ text@compose padding header ": " message))))
+                      (|> message
+                          (text.replace-all text.new-line on-new-line)
+                          ($_ text@compose padding header ..header-separator)))))
         (text.join-with text.new-line))))
 
 (syntax: #export (report {entries (p.many (s.tuple (p.and s.any s.any)))})
@@ -131,7 +140,7 @@
 (def: separator
   ($_ "lux text concat"
       text.new-line text.new-line
-      "----------------------------------------------------------------"
+      (|> "-" (list.repeat 64) (text.join-with ""))
       text.new-line text.new-line))
 
 (def: #export (decorate prelude error)
diff --git a/stdlib/source/lux/tool/compiler/phase/analysis/function.lux b/stdlib/source/lux/tool/compiler/phase/analysis/function.lux
index fbaaf2fc5..76effa0dc 100644
--- a/stdlib/source/lux/tool/compiler/phase/analysis/function.lux
+++ b/stdlib/source/lux/tool/compiler/phase/analysis/function.lux
@@ -34,8 +34,8 @@
              ["Arguments" (|> arguments
                               list.enumerate
                               (list@map (.function (_ [idx argC])
-                                          (format text.new-line "  " (%n idx) " " (%code argC))))
-                              (text.join-with ""))]))
+                                          (format (%n idx) " " (%code argC))))
+                              (text.join-with text.new-line))]))
 
 (def: #export (function analyse function-name arg-name body)
   (-> Phase Text Text Code (Operation Analysis))