Kiwi Language

A toy language I'm building in Zig.

You can find examples in the docs directory, and formal grammar here.

Note: variables are always immutable.

More features are being actively worked on.

Compilation:

zig build

Running:

zig build run -- test.kw program
zig cc program.o -o program
./program

There must be a test.kw file in the root of the project with example Kiwi code.

Note: the above steps can be automated by running ./run.sh.

Implementation Status

✅ Working

• Basic variable declarations (with type annotations)
• Arithmetic expressions (+, -, *, /)
• Return statements
• Variable references
• Function declarations and calls
• Function parameters and return types
• Function calls

🔄 In Development

• Conditional statements
• Comparison operators
• Logical operators
• Booleans
• Basic error messages

📋 Planned

• Type checking and validation
• Basic IO
• First Class Functions
• Arrays/Hashmaps
• Pattern matching
• Tuples
• Import system/stdlib
• More advanced compiler error messages
• Comments
• Lambda Expressions
• Strings
• Error handling

🐛 Known Issues

• Main function does not check what its return type is