golox

Lox implementations from Crafting Interpreters in Go.

Running the test suite

go test -v ./tests

Target a specific suite

go test ./tests -run "TestLoxSuite/tw/assignment"

Or file

go test ./tests -run "TestLoxSuite/tw/assignment/associativty.lox"

TODO

• Move errors to seperate package

TW

Extensions

• C-style block comments /* ... */
• Ternary operator cond ? a : b
• Shorthand ++ -- -= +=
• break and continue
• Arrays (indexing, length query, iteration) [] using Object
• switch statements
• String interpolation: "{}"
• Anonymous functions: (params) => expr (params) => { stmt }

Optimisations

• Compile-time constant folding (1 + 2 becomes 3)
• Dead code elimination