lib: intro `prompt`, basic Apache 2.0 service to display a prompt

[nit.git] / src / loader.nit

diff --git a/src/loader.nit b/src/loader.nit
index 7f5a245..125866a 100644 (file)
--- a/src/loader.nit
+++ b/src/loader.nit
@@ -135,6 +135,7 @@ redef class ModelBuilder
                                alpha_comparator.sort(fs)
                                # Try each entry as a group or a module
                                for f in fs do
+                                       if f.first == '.' then continue
                                        var af = a/f
                                        mgroup = identify_group(af)
                                        if mgroup != null then
@@ -375,6 +376,53 @@ 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
@@ -589,6 +637,7 @@ redef class ModelBuilder
                var files = p.files
                alpha_comparator.sort(files)
                for f in files do
+                       if f.first == '.' then continue
                        var fp = p/f
                        var g = identify_group(fp)
                        # Recursively scan for groups of the same package
@@ -695,7 +744,7 @@ redef class ModelBuilder
 
        # Injection of a new module without source.
        # Used by the interpreter.
-       fun load_rt_module(parent: nullable MModule, nmodule: AModule, mod_name: String): nullable AModule
+       fun load_rt_module(parent: nullable MModule, nmodule: AModule, mod_name: String): nullable MModule
        do
                # Create the module
 
@@ -712,11 +761,10 @@ redef class ModelBuilder
                        imported_modules.add(parent)
                        mmodule.set_visibility_for(parent, intrude_visibility)
                        mmodule.set_imported_mmodules(imported_modules)
-               else
-                       build_module_importation(nmodule)
                end
+               build_module_importation(nmodule)
 
-               return nmodule
+               return mmodule
        end
 
        # Visit the AST and create the `MModule` object
@@ -764,8 +812,8 @@ redef class ModelBuilder
                                mmodule.mdoc = mdoc
                                mdoc.original_mentity = mmodule
                        end
-                       # Is the module a test suite?
-                       mmodule.is_test_suite = not decl.get_annotations("test_suite").is_empty
+                       # Is the module generated?
+                       mmodule.is_generated = not decl.get_annotations("generated").is_empty
                end
        end
 
@@ -998,7 +1046,7 @@ redef class ModelBuilder
        # (and `build_module_importation` that calls it).
        #
        # TODO (when the loader will be rewritten): use a better representation and move up rules in the model.
-       private var conditional_importations = new Array[SequenceRead[MModule]]
+       var conditional_importations = new Array[SequenceRead[MModule]]
 
        # Extends the current importations according to imported rules about conditional importation
        fun apply_conditional_importations(mmodule: MModule)
@@ -1014,7 +1062,7 @@ redef class ModelBuilder
                                for i in [1..ci.length[ do
                                        var m = ci[i]
                                        # Is imported?
-                                       if not mmodule.in_importation.greaters.has(m) then continue label
+                                       if mmodule == m or not mmodule.in_importation.greaters.has(m) then continue label
                                end
                                # Still here? It means that all conditions modules are loaded and imported