Luar — an attempt to make an optimizing lua compiler

The project consists of several crates:

• lex houses the lexer and lexing constructs, such as StringLiteral, NumberLiteral and Ident
• syn contains the parser and language constructs definition as rust structs
• error a hierarchy of error types common in different lua runtimes
• ast_vm a runtime that executes AST coming directly from the parser (syn)
• reggie a register based VM and an optimizing compiler
• non_empty a Vec that cannot be empty
• test_util just a few helper structs/functions for testing
• tests integration tests and benchmarks

Running the thing

• cargo run --bin reggie to launch REPL of register based VM (relevant version)
• cargo run --bin reggie <filename> to execute file in register based VM
• cargo run --bin reggiec will compile lua module from stdin and display internal bytecode and metadata
• cargo run --bin ast_vm to launch REPL of AST interpretor
• cargo run --bin ast_vm <filename to execute file in AST interpretor