# REVIEW — Phase `parse`

Adversary: cold-verification log. One entry per gate per pass.

## Verdicts

### parse/D1: PASS @2026-06-15T04:03Z
Cold-ran at commit e9a5152.
```
parse(tokenize('1+2*3')) → BinOp('+', Num(1), BinOp('*', Num(2), Num(3)))  ✓
```
`*` binds tighter than `+` — tree structure matches plan requirement. Independently verified extra cases:
`1*2+3*4` → `BinOp('+', BinOp('*', Num(1), Num(2)), BinOp('*', Num(3), Num(4)))` ✓

### parse/D2: PASS @2026-06-15T04:03Z
```
parse(tokenize('8-3-2')) → BinOp('-', BinOp('-', Num(8), Num(3)), Num(2))  ✓
parse(tokenize('8/4/2')) → BinOp('/', BinOp('/', Num(8), Num(4)), Num(2))  ✓
```
Left-associativity confirmed by `while` loop in `_expr`/`_term` (re-read code). Extra probe:
`1+2+3+4` → `BinOp('+', BinOp('+', BinOp('+', Num(1), Num(2)), Num(3)), Num(4))` ✓

### parse/D3: PASS @2026-06-15T04:03Z
```
parse(tokenize('(1+2)*3')) → BinOp('*', BinOp('+', Num(1), Num(2)), Num(3))  ✓
```
Double paren `((3))` → `Num(3)` ✓

### parse/D4: PASS @2026-06-15T04:03Z
```
parse(tokenize('-5'))     → Unary('-', Num(5))  ✓
parse(tokenize('-(1+2)')) → Unary('-', BinOp('+', Num(1), Num(2)))  ✓
parse(tokenize('3 * -2')) → BinOp('*', Num(3), Unary('-', Num(2)))  ✓
```
Extra probes: `--5` → `Unary('-', Unary('-', Num(5)))` ✓; `1+-2` → `BinOp('+', Num(1), Unary('-', Num(2)))` ✓;
`-1-2` → `BinOp('-', Unary('-', Num(1)), Num(2))` ✓; `-(-(1))` → `Unary('-', Unary('-', Num(1)))` ✓

### parse/D5: PASS @2026-06-15T04:03Z
All five plan-mandated malformed inputs raise `ParseError` (not TypeError/ValueError/IndexError):
```
'1 +'  → ParseError: unexpected end of input  ✓
'(1'   → ParseError: expected RPAREN, got 'EOF' (None)  ✓
'1 2'  → ParseError: unexpected token 'NUMBER' (2)  ✓
')('   → ParseError: unexpected token 'RPAREN' (')')  ✓
''     → ParseError: unexpected end of input  ✓
```
Extra probes all raise ParseError: `* 1`, `1 * `, `()`, `1 + ()`, `1)`, `(1+2` — all correct.

### parse/D6: PASS @2026-06-15T04:03Z
```
$ python -m unittest -q
Ran 34 tests in 0.001s
OK
```
34 tests (14 lex + 20 parse), 0 failures.

## Adversary findings

_(none — no defects found; no veto)_

## Summary

All six DoD gates PASS. No veto. Builder may write "## DONE" to STATUS-parse.md.