lib/serialization: add README.md

[nit.git] / src / loader.nit

diff --git a/src/loader.nit b/src/loader.nit
index b0d6479..65e7c67 100644 (file)
--- a/src/loader.nit
+++ b/src/loader.nit
@@ -330,8 +330,21 @@ redef class ModelBuilder
 
        # Return the mgroup associated to a directory path.
        # If the directory is not a group null is returned.
+       #
+       # Note: `paths` is also used to look for mgroups
        fun get_mgroup(dirpath: String): nullable MGroup
        do
+               if not dirpath.file_exists then do
+                       for p in paths do
+                               var try = p / dirpath
+                               if try.file_exists then
+                                       dirpath = try
+                                       break label
+                               end
+                       end
+                       return null
+               end label
+
                var rdp = module_absolute_path(dirpath)
                if mgroups.has_key(rdp) then
                        return mgroups[rdp]
@@ -373,7 +386,7 @@ redef class ModelBuilder
                if not readme.file_exists then readme = dirpath2.join_path("README")
                if readme.file_exists then
                        var mdoc = new MDoc
-                       var s = new IFStream.open(readme)
+                       var s = new FileReader.open(readme)
                        while not s.eof do
                                mdoc.content.add(s.read_line)
                        end
@@ -417,7 +430,7 @@ redef class ModelBuilder
                self.toolcontext.info("load module {filename}", 2)
 
                # Load the file
-               var file = new IFStream.open(filename)
+               var file = new FileReader.open(filename)
                var lexer = new Lexer(new SourceFile(filename, file))
                var parser = new Parser(lexer)
                var tree = parser.parse
@@ -501,22 +514,40 @@ redef class ModelBuilder
        do
                # Check the module name
                var decl = nmodule.n_moduledecl
-               if decl == null then
-                       #warning(nmodule, "Warning: Missing 'module' keyword") #FIXME: NOT YET FOR COMPATIBILITY
-               else
+               if decl != null then
                        var decl_name = decl.n_name.n_id.text
                        if decl_name != mod_name then
                                error(decl.n_name, "Error: module name missmatch; declared {decl_name} file named {mod_name}")
                        end
                end
 
+               # Check for conflicting module names in the project
+               if mgroup != null then
+                       var others = model.get_mmodules_by_name(mod_name)
+                       if others != null then for other in others do
+                               if other.mgroup!= null and other.mgroup.mproject == mgroup.mproject then
+                                       var node: ANode
+                                       if decl == null then node = nmodule else node = decl.n_name
+                                       error(node, "Error: A module named `{other.full_name}` already exists at {other.location}")
+                                       break
+                               end
+                       end
+               end
+
                # Create the module
                var mmodule = new MModule(model, mgroup, mod_name, nmodule.location)
                nmodule.mmodule = mmodule
                nmodules.add(nmodule)
                self.mmodule2nmodule[mmodule] = nmodule
 
+               var source = nmodule.location.file
+               if source != null then
+                       assert source.mmodule == null
+                       source.mmodule = mmodule
+               end
+
                if decl != null then
+                       # Extract documentation
                        var ndoc = decl.n_doc
                        if ndoc != null then
                                var mdoc = ndoc.to_mdoc
@@ -525,6 +556,8 @@ redef class ModelBuilder
                        else
                                advice(decl, "missing-doc", "Documentation warning: Undocumented module `{mmodule}`")
                        end
+                       # Is the module a test suite?
+                       mmodule.is_test_suite = not decl.get_annotations("test_suite").is_empty
                end
 
                return mmodule
@@ -606,8 +639,18 @@ redef class ModelBuilder
        var nmodules = new Array[AModule]
 
        # Register the nmodule associated to each mmodule
-       # FIXME: why not refine the `MModule` class with a nullable attribute?
-       var mmodule2nmodule = new HashMap[MModule, AModule]
+       #
+       # Public clients need to use `mmodule2node` to access stuff.
+       private var mmodule2nmodule = new HashMap[MModule, AModule]
+
+       # Retrieve the associated AST node of a mmodule.
+       # This method is used to associate model entity with syntactic entities.
+       #
+       # If the module is not associated with a node, returns null.
+       fun mmodule2node(mmodule: MModule): nullable AModule
+       do
+               return mmodule2nmodule.get_or_null(mmodule)
+       end
 end
 
 # File-system location of a module (file) that is identified but not always loaded.
@@ -649,6 +692,11 @@ redef class MGroup
 
 end
 
+redef class SourceFile
+       # Associated mmodule, once created
+       var mmodule: nullable MModule = null
+end
+
 redef class AStdImport
        # The imported module once determined
        var mmodule: nullable MModule = null