addLogging

Module to apply "printf() debugging", trought metaprograming every time you call a function

Installation

npm install @ggcristo/logging-input -g

Usage

add-logging --pattern foo --output salida.js input.js  
This read the "input.js" file search and in case the file has valid
javascript in it, search for the funtion whose identifier match with the one you write in the --pattern option, written a console.log on it.

Hipotetic file

function foo(a, b) {
  var x = 'blah';
  var y = (function () {
    return 3;
  })();
}
foo(1, 'wut', 3);

Output

function foo(a, b) {
    console.log(`Entering foo(${ a }, ${ b }) at line 1`);
    var x = 'blah';
    var y = function () {
        return 3;
    }();
}
foo(1, 'wut', 3);

Module Help

~: add-logging

Usage: add-logging [options] <filename> [...]

Metaprogramación con AST

Options:
  -V, --version               output the version number
  -o, --output <filename...>  fichero de salida
  -h --help                   output usage information
  -p --pattern <pattern>      filter the function to process

API usage

This is an one-function module:

addLogging(code, functionNamePattern)

This function take the code in the form of a string (code), the functionNamePattern is opcional.
It will return the result code in a form of a string as well.

Tests

npm test

Constributing

Try to use a consist style with the already existing code, avoid monster commits.
If you consider the contribution is big, create a pr and add the tag [WIP] so others can watch over the process

Release History

• 0.2.0 Initial release
• 0.2.1 Básic test(WIP)
• 0.2.2 Actions
• 0.2.3 Minor bug fixes
• 0.3.0 Executable file
• 0.4.0 Patter option