1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
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
9 # http://www.apache.org/licenses/LICENSE-2.0
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.
17 # Metrics about the usage of explicit and implicit self
22 redef class ToolContext
23 var self_metrics_phase
: Phase = new SelfMetricsPhase(self, null)
26 private class SelfMetricsPhase
28 redef fun process_mainmodule
(mainmodule
, given_mmodules
)
30 if not toolcontext
.opt_self
.value
and not toolcontext
.opt_all
.value
then return
31 compute_self_metrics
(toolcontext
.modelbuilder
)
35 private class ASelfVisitor
38 var implicits
: Int = 0
42 if n
isa ASelfExpr then
44 if n
isa AImplicitSelfExpr then
52 # Visit the AST and print metics about the usage of self.
53 fun compute_self_metrics
(modelbuilder
: ModelBuilder)
55 print
"--- Explicit vs. Implicit Self ---"
56 # Visit all the source code to collect data
57 var visitor
= new ASelfVisitor
58 for nmodule
in modelbuilder
.nmodules
do
59 for nclassdef
in nmodule
.n_classdefs
do
60 visitor
.enter_visit
(nclassdef
)
63 print
"Total number of self: {visitor.total}"
64 print
"Total number of implicit self: {visitor.implicits} ({div(visitor.implicits*100,visitor.total)}%)"