Interpreter in Golang

This project is an interpreter for a simple programming language written in Go. The interpreter supports mathematical expressions, variable bindings, functions and the application of those functions, conditionals, return statements and even advanced concepts like higher-order functions and closures. And then there are the different data types: integers, booleans, strings, arrays and hashes.

Project Structure

Directories

• ast/: Contains the Abstract Syntax Tree (AST) definitions and related functions.
• evaluator/: Contains the evaluator implementation which executes the AST.
• lexer/: Contains the lexer implementation which is responsible for tokenizing the input source code.
• object/: Contains the object system which defines the data types used in the interpreter.
• parser/: Contains the parser implementation which converts tokens into an AST.
• repl/: Contains the Read-Eval-Print Loop (REPL) implementation for interactive use.
• token/: Contains the token definitions used by the lexer and parser.

Getting Started

Prerequisites

• Go 1.24.0 or later

Building the Project

To build the project, run:

go build

REPL

To run REPL, run:

go run main.go

Error