src: misc typos, doc and warning fixes

[nit.git] / src / semantize / typing.nit

diff --git a/src/semantize/typing.nit b/src/semantize/typing.nit
index 9813284..5340c14 100644 (file)
--- a/src/semantize/typing.nit
+++ b/src/semantize/typing.nit
@@ -81,11 +81,6 @@ private class TypeVisitor
 
        fun anchor_to(mtype: MType): MType
        do
-               var anchor = anchor
-               if anchor == null then
-                       assert not mtype.need_anchor
-                       return mtype
-               end
                return mtype.anchor_to(mmodule, anchor)
        end
 
@@ -580,7 +575,16 @@ private class TypeVisitor
                                return mtypes.first
                        else
                                var res = merge_types(node,mtypes)
-                               if res == null then res = variable.declared_type
+                               if res == null then
+                                       res = variable.declared_type
+                                       # Try to fallback to a non-null version
+                                       if res != null and can_be_null(res) then do
+                                               for t in mtypes do
+                                                       if t != null and can_be_null(t) then break label
+                                               end
+                                               res = res.as_notnull
+                                       end label
+                               end
                                return res
                        end
                end
@@ -736,7 +740,7 @@ end
 class CallSite
        super MEntity
 
-       redef var location: Location
+       redef var location
 
        # The static type of the receiver (possibly unresolved)
        var recv: MType
@@ -781,11 +785,13 @@ class CallSite
        fun dump_info(v: ASTDump): String do
                return "{recv}.{mpropdef}{msignature}"
        end
+
+       redef fun mdoc_or_fallback do return mproperty.intro.mdoc
 end
 
 redef class Variable
        # The declared type of the variable
-       var declared_type: nullable MType is writable
+       var declared_type: nullable MType = null is writable
 
        # Was the variable type-adapted?
        # This is used to speedup type retrieval while it remains `false`