src/nitmetrics.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2012 Jean Privat <jean@pryen.org>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 # A program that collects various metrics on nit programs and libraries
  18 module nitmetrics
  19
  20 import modelbuilder
  21 import frontend
  22 import metrics
  23
  24 # Create a tool context to handle options and paths
  25 var toolcontext = new ToolContext
  26 toolcontext.tooldescription = "Usage: nitmetrics [OPTION]... <file.nit>...\mComputes various metrics on Nit programs."
  27
  28 # We do not add other options, so process them now!
  29 toolcontext.process_options(args)
  30
  31 # Get arguments
  32 var arguments = toolcontext.option_context.rest
  33
  34 # We need a model to collect stufs
  35 var model = new Model
  36 # An a model builder to parse files
  37 var modelbuilder = new ModelBuilder(model, toolcontext)
  38
  39 # Here we load an process all modules passed on the command line
  40 var mmodules = modelbuilder.parse(arguments)
  41 modelbuilder.run_phases
  42
  43 if mmodules.length == 0 then return
  44
  45 var mainmodule: MModule
  46 if mmodules.length == 1 then
  47         mainmodule = mmodules.first
  48 else
  49         # We need a main module, so we build it by importing all modules
  50         mainmodule = new MModule(model, null, "<main>", new Location(null, 0, 0, 0, 0))
  51         mainmodule.set_imported_mmodules(mmodules)
  52 end
  53
  54 print "*** METRICS ***"
  55
  56 toolcontext.run_global_phases(mainmodule)