Learn Groovy by implementing a Brainf**k interpreter! | Groovy Tutorial
Learn how to implement Brainf**k interpreter in Groovy ■ Groovy Tutorial ■ #groovylang
In this Groovy tutorial, I explain what the Brainfuck esoteric programming language is, how the program written in it gets interpreted, and how to write your own interpreter using Groovy, tail-recursive approach, and immutable data structures. I use a simple Gradle project with Groovy 3.0.3 and Spock Framework 2.0.M2 for unit tests. The test cases are already written, so I'm going to do something almost like test-driven development (TDD), where the unit tests are written first. I hope you will find it entertaining and useful :-)
⏱️ TIMESTAMPS:
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00:00 | Introduction
00:46 | Explaining Brainfuck syntax by example
04:19 | Starting implementing the interpreter
05:12 | Defining "step" recursive method
08:07 | Defining the termination condition of the step method
09:06 | Implementing "." instruction
10:46 | Implementing "+" instruction
14:08 | Implementing "-" instruction
15:08 | Implementing data pointer increment instruction
15:45 | Implementing data pointer decrement instruction
16:32 | Fixing unsigned byte overflow
18:56 | Implementing "," instruction
21:38 | Implementing "[" and "]" instructions
26:44 | Applying @TailRecursive optimization
29:13 | Analyzing the bytecode of @TailRecursvie method
31:04 | Running the interpreter as a Java program
32:27 | End screen
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