From 5c00b978b0bc0c1eeb64682cba6aa338fea320bf Mon Sep 17 00:00:00 2001
From: NanoTech
Date: Sun, 11 Dec 2016 23:27:36 -0600
Subject: Start implementing error explanations

---
 src/errors/InvalidListType.txt | 43 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/errors/InvalidListType.txt

(limited to 'src/errors/InvalidListType.txt')

diff --git a/src/errors/InvalidListType.txt b/src/errors/InvalidListType.txt
new file mode 100644
index 0000000..676647e
--- /dev/null
+++ b/src/errors/InvalidListType.txt
@@ -0,0 +1,43 @@
+Explanation: Every ❰List❱ documents the type of its elements with a type
+annotation, like this:
+
+
+    ┌──────────────────────────┐
+    │ [1, 2, 3] : List Integer │  A ❰List❱ of three ❰Integer❱s
+    └──────────────────────────┘
+                       ⇧
+                       The type of the ❰List❱'s elements, which are ❰Integer❱s
+
+
+    ┌───────────────────┐
+    │ [] : List Integer │  An empty ❰List❱
+    └───────────────────┘
+                ⇧
+                You still specify the type even when the ❰List❱ is empty
+
+
+The element type must be a type and not something else.  For example, the
+following element types are $_NOT valid:
+
+
+    ┌──────────────┐
+    │ ... : List 1 │
+    └──────────────┘
+                 ⇧
+                 This is an ❰Integer❱ and not a ❰Type❱
+
+
+    ┌─────────────────┐
+    │ ... : List Type │
+    └─────────────────┘
+                 ⇧
+                 This is a ❰Kind❱ and not a ❰Type❱
+
+
+Even if the ❰List❱ is empty you still must specify a valid type
+
+You declared that the ❰List❱'s elements should have type:
+
+↳ $txt0
+
+... which is not a ❰Type❱
-- 
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