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Questions tagged [compiler]

For reviews of code which implements any part of a compiler - lexing, parsing, code generation and optimization, etc. Also for any plugin for an existing compiler. Don't use this tag for code which is input to a compiler - tag it with the correct language instead.

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4 votes
2 answers
98 views

Extensible typing system for a strongly-typed DSL

I recently finished cleaning up my code in a compiler/interpreter for a strongly-typed domain-specific language, which makes use of three sorts of types: Compile-time enumerated types: Have one of a ...
5 votes
0 answers
224 views

tbf - An Optimizing Brainfuck Interpreter and Transpiler in C

Language: The Brainfuck programming language consists of eight commands: ...
1 vote
2 answers
110 views

Compiler grammar and parser are disconnected

In the process of creating my first toy language, I have created the base grammar for it (which can surely be improved upon, feel free to comment). I am emitting C at the moment. \begin{align} ...
8 votes
1 answer
290 views

C++ - Lexer for the Monkey Programming Language from the book "Writing An Interpreter In Go"

Below is a C++ version of a lexer for the Monkey programming language, originally written in Go, as presented in the book Writing An Interpreter In Go. LOC: 262. (Excluding the tests.) Language: Copy ...
4 votes
1 answer
109 views

C99 - Lexer for the Monkey Programming Language from the book "Writing An Interpreter In Go"

Below is a C version of a lexer for the Monkey programming language, originally written in Go, as presented in the book Writing An Interpreter In Go. LOC: 371. (Excluding the tests.) Language: Copy ...
3 votes
3 answers
376 views

1D Convolution vector multiplication in ANSI C code

I have a code snippet here about 1D convolution in pure ANSI C code. Question: Is this most optimized C code, or can it be done in a more optimized way? In my ...
0 votes
0 answers
53 views

Mac M1 .BF Compiler in Rust

I'm writing a brainfuck compiler in rust, that takes brainfuck instructions and converts them to a very basic assembly form, and then compiles that into binary, if you are not familiar with brainfuck ...
6 votes
2 answers
191 views

Programming Language Source Lexer

I have a lexer (program that turns source code into tokens) written in Go that I am re-writing in Rust. The lexer should take in a sequence of tokens, generally different special characters, integers, ...
3 votes
2 answers
369 views

Extremely simple virtual machine in Rust

I wrote a very simple VM to get a bit more familiar with Rust. The VM architecture was not the focus, so that I think that can safely ignored. Is my code idiomatic and clean? I felt that I was very ...
4 votes
1 answer
400 views

Assembler made in assembly

I made an assembler for the "hack" assembly language, here's an example of what it looks like: ...
4 votes
1 answer
176 views

AEC-to-WebAssembly compiler in C++

Now that my new compiler is capable of compiling programs such as the Analog Clock in AEC, I've decided to share the code of that compiler with you, to see what you think about it. File ...
3 votes
1 answer
854 views

Call-flow graph from Python abstract syntax tree

Below is my code for building a call-flow graph from a Python abstract syntax tree. I'm not satisfied with it because the algorithm is very complicated. Perhaps much more complicated than it needs to ...
4 votes
1 answer
230 views

A Brainfuck compiler that creates a small x86_64 Linux executable from scratch

This program compiles Brainfuck source code to an x86_64 ELF executable. It doesn't rely on any backend, just raw binary stream to a functional executable. In the implementation, each cell holds an 8-...
7 votes
2 answers
92 views

Pseudoportable C script pattern - follow-up

See the initial/previous iteration. I have rewritten the script following the answer of @200_success. Now it looks like this: ...
3 votes
0 answers
86 views

Implement kleptography in Python

I'm new here, therefore I hope to be clear in this question. Firstly, I want to underline that I'm not a programmer, and I attended only a beginner course in Python, but I like to solve problems ...
9 votes
1 answer
295 views

Is possible to use script for dependencies in c++?

I wanted to make a script that would parse a main file (with int main()) look in its #include "..." local headers, and ...
3 votes
0 answers
77 views

Brainfuck NASM compiler in Clojure

I've made a simple brainfuck compiler, I feel like my code is unreadable and messy, how can I improve it? src/core.clj ...
2 votes
0 answers
35 views

Sierpinski Triangle in AEC

So, I've tried to extend my compiler so that it can target GNU Assembler. And I've made a simple program to demonstrate that. ...
2 votes
0 answers
69 views

implementing lexical, syntatic and semantic analysis

My program , developed with C using win_flex , implements lexical, syntatic and semantic analysis , given defined grammar rules. I would like to know if you any suggestion for improving or ...
3 votes
1 answer
207 views

Pascal's Triangle in AEC

So, I am trying to make people interested in my compiler project (in the early stages of development) by making some simple and clear programs in my programming language. Here is my implementation of ...
5 votes
1 answer
672 views

Simple BASIC to Simpletron Machine Language compiler in C

I implemented a compiler that compiles a dialect of BASIC known as SimpleBASIC into Simpletron Machine Language to be run by the Simpletron simulator. I wrote the manual for the SimpleBASIC compiler ...
10 votes
0 answers
1k views

Cyther: The Cross Platform Cython/Python Compiler (Take 2)

I recently posted an earlier version of this code on Code Review, and now with the given suggestions and many other improvements, I am back. I included the description of exactly what Cyther is ...
3 votes
0 answers
109 views

Scripting language with generic classes

I am creating a dialect of ActionScript 3.0 and now have a working verifier, or “symbol solving” verifier. The language upgrades ActionScript 3.0 with few operators, light syntax facilities, numeric ...
4 votes
1 answer
459 views

Is this a good way to write a lexer?

I don't know whether if this is the right place to ask this. I am semi-beginner in C. I always wanted to build my own Programming Language. Here I have built a lexical analyser completely myself. ...
10 votes
1 answer
647 views

PEG.js grammar for a simple programming language

I'm trying my hand at developing a compiler and have written a peg.js grammar for a simple programming language. A sneak peak at the grammar: ...
7 votes
4 answers
2k views

Lexer for C++ in python

I wrote a simple C++ lexer in python. Although it already works but I kinda feel I didn't follow the pythonic way. Any suggestion for improvements? Sample C++ Code Sample output Here's my code: ...
3 votes
2 answers
1k views

C++ Building Parse Tree with Boost and Modern C++

I am writing a parser. To build up the tree, I need to find the correct type for my node based on text from my language input file. Right now, I have a map from a string (the node name) to a factory ...
6 votes
1 answer
7k views

Creating data objects dynamically at runtime from an interface

Sometimes when I write objects for holding data (not real DTOs, no serialization involved) I also create an interface for it. The class that implements it can also perform some null checks. I don't ...
3 votes
1 answer
73 views

State machine translates text into executable python code [v2]

A few days ago I started writing my own compiler-like program which has the goal to compile plain text into executable python code. After I let my first version review here, I made huge changes to the ...
10 votes
3 answers
3k views

Heavily limited premature compiler translates text into excecutable python code

My goal is to write a smaller compiler-like program, which allows me to draw geometric shapes into a 3D Diagram. There is no need for turing-completeness and the program should only be viewed as an ...
2 votes
3 answers
2k views

Compiling and throwing simple dynamic exceptions at runtime

I often need a simple exception with a meaningful name and some helpful message which usually just looks like this one: ...
4 votes
2 answers
2k views

Compiling and throwing simple dynamic exceptions at runtime for JVM

I've been using my Dynamic Exception with C# for quite some time already and it saved me a lot of time. This means, I don't have to create a new exception ...
7 votes
2 answers
449 views

Program that generates brainfuck code that outputs given text

I created program that generates brainfuck code that outputs given text. Arguments for the program are input file with the text and ...
12 votes
1 answer
1k views

Jack compiler in C

I have been doing projects from the book The Elements of Computing Systems. Under the scope of project 10 and project 11, I had to implement a compiler for a (toy) programming language called Jack (...
4 votes
2 answers
113 views

Python command line tool for compiling py files to exec files on Mac

When I used to use a PC I was familiar with py2exe, the mac equivalent I saw most people talking about was py2app — which compiles python to .app files, not .exec files. I was familiar with compiling ...
17 votes
1 answer
674 views

Brainfreeze: A Brainfuck compiler in C

BrainFreeze This is my implementation of a brainfuck compiler in C. The instruction to build/run the project (GitHub repo) can be found here. I am first converting the brainfuck source to x86 ...
2 votes
0 answers
160 views

Parser for simple esoteric language in Rust

I am writing a compiler for esoteric language as one of my first Rust projects. I am using rust-pest to generate a parser. Since I'm new in Rust, code review would be great. Full source code can be ...
13 votes
1 answer
307 views

Brainfuck to NASM compiler in Haskell

After reading this article on writing a Brainfuck interpreter in Haskell and achieving awful performance with it (for example, mandelbrot generating 37.5 minutes on an old Intel Atom powered laptop) I'...
6 votes
0 answers
399 views

Creating a new language: FreezeFlame

Where it shines FreezeFlame shines in readibility while still maintaining most of the C-like syntax. It also implements a few (Planning on several) operators that are still in testing for other ...
3 votes
2 answers
309 views

cmake for a toy programming language

I have very little experience with cmake, this is really the first time I used it for a project. In the past I used some ...
4 votes
1 answer
1k views

Simple flex-based lexer

I am trying to learn flex and have created this simple program. The rule for comments works correctly for single line comments such as: // this is a comment and ...
5 votes
2 answers
468 views

Brainfuck to Python compiler

So this is (I think) a premiere for python. A function that translates brainfuck code to python code. It does a few optimizations (It chains +,...
4 votes
0 answers
214 views

Implementation of the Hindley-Milner type system (with evaluation, without type inference) as a library for use in compilers

I've written an implementation of the Hindley-Milner type system as a "Core" language for use in writing compilers of typed functional languages. This is meant to be used as a library by compilers of ...
12 votes
4 answers
2k views

Simple C99 Lexer

I'm building a compiler for fun, and this is my first pass at the lexer for it. It should handle all tokens for C99, with the exception of the preprocessor tokens. It's very minimal, only grabbing the ...
6 votes
2 answers
321 views

Brainf*ck to NASM converter written in C

I have made a very simple Brainfuck to NASM converter, that is usable for practically all programs. It has one trivial optimisation (to subsitute ADD for ...
6 votes
1 answer
789 views

Programming language lexer in Rust

I'm working through Crafting Interpreters and trying to apply what I've learned in Rust. I've got the lexer working in what feels like a reasonably idiomatic way (hooray!), but I have a feeling it ...
6 votes
2 answers
7k views

Make compiler obfuscate strings

I'm looking at a task to obfuscate strings in my application like URLs, paths and queries at compile time. This is not for encrypting ...
0 votes
2 answers
103 views

Assigning names to unnamed labels

I'm working on a compiler. During the final stage I will get a collection of Lines. This is the method that takes the Lines and ...
3 votes
2 answers
943 views

CodeWars - Three-pass compiler for arithmetic expressions

I'm looking for feedback on my solution to the Tiny Three-Pass Compiler kata on CodeWars. The kata is to implement a compiler for an arithmetic language in three passes - parsing to an AST, constant ...
6 votes
1 answer
240 views

Logic Prolog compiler

I'm actually doing my own Prolog compiler just like SWISH one with Java. Prolog is a logic language that is particularly suited to programs that involve symbolic or non-numeric computation. Prolog ...