https://github.com/jakobknauer/l0

https://github.com/jakobknauer/l0

compiler cpp cpp23 llvm

Last synced: 2 days ago
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• Host: GitHub
• URL: https://github.com/jakobknauer/l0
• Owner: jakobknauer
• License: mit
• Created: 2024-06-25T15:12:10.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2025-02-02T10:46:16.000Z (2 days ago)
• Last Synced: 2025-02-02T11:26:36.657Z (2 days ago)
• Topics: compiler, cpp, cpp23, llvm
• Language: C++
• Homepage:
• Size: 241 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# About

L0 is statically typed, compiled programming language that I started as a hobby project to get into compilers and the LLVM toolchain.

L0 features and characteristics:

- Strong and static typing

- Structures

- Type inference for local variables

- Immutability by default

- Functions as first-class citizens, higher-order functions, anonymous functions, closures

- Pointer semantics and arithmetic

- Manual memory management

## Examples

This is a Hello World program in L0:

```

fn main () -> ()

{

    printf("Hello, World!\n");

};

```

You can find more examples in [the examples directory](examples):

- [Variables](examples/variables/variables.l0)

- [Control Flow and Booleans](examples/control-flow/control-flow.l0)

- [References and Dynamic Allocations](examples/references/references.l0)

- [Functions](examples/functions/functions.l0)

- [Structs](examples/structs/structs.l0)

- [Closures](examples/closures/closures.l0)

- [An interactive program for computing faculties](examples/faculty). This includes a String struct representing strings of dynamic size, conversion from and to integers, etc.

## Build

To build the project itself, run

```shell

mkdir build && cd build

cmake ..

make

```

## Run

 

```shell

# Generate textual IR representation from L0 files

build/src/l0/main/l0c 

# Compile and link to executable

clang  -o 

# E.g. to build and run the faculty example:

cd examples/faculty

../build/src/l0/main/l0c "faculty.l0" "math.l0" "print.l0" "read.l0" "string.l0"

clang *.ll -o faculty

./faculty

```