nitrestful & lib: use static type to limit and as heuristic at deserialization

[nit.git] / src / loader.nit

diff --git a/src/loader.nit b/src/loader.nit
index 7f5a245..ac07e71 100644 (file)
--- a/src/loader.nit
+++ b/src/loader.nit
@@ -375,6 +375,53 @@ redef class ModelBuilder
                                end
                        end
 
+                       # Found nothing? maybe it is a qualified name
+                       if path.chars.has(':') then
+                               var ids = path.split("::")
+                               var g = identify_group(ids.first)
+                               if g != null then
+                                       scan_group(g)
+                                       var ms = g.mmodules_by_name(ids.last)
+
+                                       # Return exact match
+                                       for m in ms do
+                                               if m.full_name == path then
+                                                       return m
+                                               end
+                                       end
+
+                                       # Where there is only one or two names `foo::bar`
+                                       # then accept module that matches `foo::*::bar`
+                                       if ids.length <= 2 then
+                                               if ms.length == 1 then return ms.first
+                                               if ms.length > 1 then
+                                                       var l = new Array[String]
+                                                       for m in ms do
+                                                               var fp = m.filepath
+                                                               if fp != null then fp = " ({fp})" else fp = ""
+                                                               l.add "`{m.full_name}`{fp}"
+                                                       end
+                                                       last_loader_error = "Error: conflicting module for `{path}`: {l.join(", ")} "
+                                                       return null
+                                               end
+                                       end
+
+                                       var bests = new BestDistance[String](path.length / 2)
+                                       # We found nothing. But propose something in the package?
+                                       for sg in g.mpackage.mgroups do
+                                               for m in sg.mmodules do
+                                                       var d = path.levenshtein_distance(m.full_name)
+                                                       bests.update(d, m.full_name)
+                                               end
+                                       end
+                                       var last_loader_error = "Error: cannot find module `{path}`."
+                                       if bests.best_items.not_empty then
+                                               last_loader_error += " Did you mean " + bests.best_items.join(", ", " or ") + "?"
+                                       end
+                                       self.last_loader_error = last_loader_error
+                                       return null
+                               end
+                       end
 
                        return null
                end