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 # Helpers for various statistics tools.
22 redef class ToolContext
25 var opt_self
= new OptionBool("Compute metrics about the usage of explicit and implicit self", "--self")
27 var opt_nullables
= new OptionBool("Compute metrics on nullables send", "--nullables")
29 var opt_static_types
= new OptionBool("Compute explicit static types metrics", "--static-types")
31 var opt_tables
= new OptionBool("Compute tables metrics", "--tables")
33 var opt_rta
= new OptionBool("Compute RTA metrics", "--rta")
35 var opt_generate_hyperdoc
= new OptionBool("Generate Hyperdoc", "--generate_hyperdoc")
37 var opt_dir
= new OptionString("Directory where some statistics files are generated", "-d", "--dir")
38 var output_dir
: String = "."
43 self.option_context
.add_option
(opt_self
)
44 self.option_context
.add_option
(opt_nullables
)
45 self.option_context
.add_option
(opt_static_types
)
46 self.option_context
.add_option
(opt_tables
)
47 self.option_context
.add_option
(opt_rta
)
48 self.option_context
.add_option
(opt_generate_hyperdoc
)
49 self.option_context
.add_option
(opt_dir
)
52 redef fun process_options
55 var val
= self.opt_dir
.value
57 val
= val
.simplify_path
64 # A counter counts occurence of things
65 # Use this instead of a HashMap[E, Int]
66 class Counter[E
: Object]
67 # Total number of counted occurences
70 private var map
= new HashMap[E
, Int]
72 # The number of counted occurences of `e'
76 if map
.has_key
(e
) then return map
[e
]
80 # Count one more occurence of `e'
83 self.map
[e
] = self[e
] + 1
87 # Return an array of elements sorted by occurences
90 var res
= map
.keys
.to_a
91 var sorter
= new CounterSorter[E
](self)
93 #res.sort !cmp a, b = map[a] <=> map[b]
98 private class CounterSorter[E
: Object]
99 super AbstractSorter[E
]
100 var counter
: Counter[E
]
101 redef fun compare
(a
,b
) do return self.counter
.map
[a
] <=> self.counter
.map
[b
]
104 # Helper function to display n/d and handle division by 0
105 fun div
(n
: Int, d
: Int): String
107 if d
== 0 then return "na"
108 return ((100*n
/d
).to_f
/100.0).to_precision
(2)