# BACKLOG — Phase parse

## Build backlog

- [x] Write calc/parser.py with parse(tokens) -> Node
- [x] Write calc/test_parser.py with unittest coverage of D1-D5
- [ ] Claim D1 (precedence)
- [ ] Claim D2 (left associativity)
- [ ] Claim D3 (parentheses)
- [ ] Claim D4 (unary minus)
- [ ] Claim D5 (errors)
- [ ] Claim D6 (tests green)