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
20 private import metrics_base
23 redef class ToolContext
24 var self_metrics_phase
= new SelfMetricsPhase(self, null)
27 private class SelfMetricsPhase
29 redef fun process_mainmodule
(mainmodule
)
31 if not toolcontext
.opt_self
.value
and not toolcontext
.opt_all
.value
then return
32 compute_self_metrics
(toolcontext
.modelbuilder
)
36 private class ASelfVisitor
39 var implicits
: Int = 0
43 if n
isa ASelfExpr then
45 if n
isa AImplicitSelfExpr then
53 # Visit the AST and print metics about the usage of self.
54 fun compute_self_metrics
(modelbuilder
: ModelBuilder)
56 print
"--- Explicit vs. Implicit Self ---"
57 # Visit all the source code to collect data
58 var visitor
= new ASelfVisitor
59 for nmodule
in modelbuilder
.nmodules
do
60 for nclassdef
in nmodule
.n_classdefs
do
61 visitor
.enter_visit
(nclassdef
)
64 print
"Total number of self: {visitor.total}"
65 print
"Total number of implicit self: {visitor.implicits} ({div(visitor.implicits*100,visitor.total)}%)"