1 files changed, 10 insertions, 1 deletions

@@ -217,6 +217,7 @@ function m.string (x)
         else
                 t = tochars(tostring(x))
         end
+        t.v = table.concat(t)
         local mt = {
                 __type = "string",
                 __tostring =
@@ -263,6 +264,13 @@ function m.listp (x)
         end
 end
 
+-- type assertion
+function m.assert_type (x, t)
+        if not m.isp(x, t) then
+                error("wrong type", m.lamtype(x), t)
+        end
+end
+
 -- according to CHICKEN, `atom?' returns #t if X is not a pair (cons)
 function m.atomp (x)
         return not m.isp(x, "pair")
@@ -276,10 +284,11 @@ function m.totable (cons)
         local t, p = {}, cons
         while p[2] do
                 table.insert(t, p[1])
-                if m.isp(p[2]) == "pair" then
+                if m.isp(p[2], "pair") then
                         p = p[2]
                 else
                         table.insert(t, p[2])
+                        break
                 end
         end
         return t