How to resolve the algorithm Reflection/Get source step by step in the J programming language

Published on 12 May 2024 09:40 PM
#J

How to resolve the algorithm Reflection/Get source step by step in the J programming language

Table of Contents

Problem Statement

The goal is to get the source code or file path and line number where a programming object (e.g. module, class, function, method) is defined.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Reflection/Get source step by step in the J programming language

Source code in the j programming language

   mean=:+/ %#
   5!:5 <'mean'
+/ % #
   5!:6 <'mean'
(+/) % #
   4!:4 <'mean'
_1
   4!:4 <'names'
2
   2 { 4!:3 ''
┌────────────────────────────────────────────┐
│/Applications/j64-804/system/main/stdlib.ijs│
└────────────────────────────────────────────┘


   linrep=: 5!:5@<
   srcfile=: (4!:4@<) { a:,~ 4!:3 bind ''


   linrep 'names'
list_z_@nl
   srcfile 'names'
┌────────────────────────────────────────────┐
│/Applications/j64-804/system/main/stdlib.ijs│
└────────────────────────────────────────────┘
   srcfile 'mean'
┌┐
││
└┘

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