Extrace

Extrace is an Elixir wrapper for Recon Trace.

Installation

The package can be installed by adding :extrace to your list of dependencies in mix.exs:

def deps do
  [
    {:extrace, "~> 0.3.0"}
  ]
end

Examples

Set point:

iex> Extrace.calls([{Enum, :take_random, fn _ -> :return end}, {Enum, :count, fn _ -> :return end}], 100, [scope: :local])
4

Note that the functions to be traced (:take_random and :count in the example above) can only be private if scope: :local is set.

One function executed:

iex(2)> Enum.take_random([1,2,3,4], 200)
[2, 4, 3, 1]

18:42:10.834670 <0.183.0> Enum.take_random([1, 2, 3, 4], 200)

18:42:10.840212 <0.183.0> Enum.take_random(%{0 => 2, 1 => 4, 2 => 3, 3 => 1}, 4, [])

18:42:10.840949 <0.183.0> Enum.take_random(%{0 => 2, 1 => 4, 2 => 3, 3 => 1}, 3, [1])

18:42:10.841064 <0.183.0> Enum.take_random(%{0 => 2, 1 => 4, 2 => 3, 3 => 1}, 2, [3, 1])

18:42:10.841202 <0.183.0> Enum.take_random(%{0 => 2, 1 => 4, 2 => 3, 3 => 1}, 1, [4, 3, 1])

18:42:10.841330 <0.183.0> Enum.take_random(%{0 => 2, 1 => 4, 2 => 3, 3 => 1}, 0, [2, 4, 3, 1])

18:42:10.841440 <0.183.0> Enum.take_random/3 --> [2, 4, 3, 1]

18:42:10.841521 <0.183.0> Enum.take_random/3 --> [2, 4, 3, 1]

18:42:10.841606 <0.183.0> Enum.take_random/3 --> [2, 4, 3, 1]

18:42:10.841685 <0.183.0> Enum.take_random/3 --> [2, 4, 3, 1]

18:42:10.841959 <0.183.0> Enum.take_random/3 --> [2, 4, 3, 1]

18:42:10.842046 <0.183.0> Enum.take_random/2 --> [2, 4, 3, 1]

Another function executed:

iex(4)> Enum.count([1,2,3,4])
4

18:42:27.383667 <0.183.0> Enum.count([1, 2, 3, 4])

18:42:27.383795 <0.183.0> Enum.count/1 --> 4

Copyright and License

Copyright (c) 2015, 2016 Tatsuya Kawano under MIT License. Fork from https://github.com/tatsuya6502/recon_ex

Copyright (c) 2019 redink

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.