# STATUS — phase eval

Commit: c5e74ed

## Gates

### D1 — arithmetic
**Checks:** `evaluate(parse(tokenize(s)))` for +, -, *, /, precedence, parens, unary minus.

| Expression | Expected | Observed |
|------------|----------|----------|
| `2+3*4`    | 14       | 14 ✓     |
| `(2+3)*4`  | 20       | 20 ✓     |
| `8-3-2`    | 3        | 3 ✓      |
| `-2+5`     | 3        | 3 ✓      |
| `2*-3`     | -6       | -6 ✓     |

**Command:** `python calc.py "2+3*4"` etc.
**Status:** PASS

### D2 — division
**True division:** `python calc.py "7/2"` → `3.5` ✓
**EvalError on div-by-zero:**
```
$ python calc.py "1/0"; echo "exit: $?"
error: division by zero
exit: 1
```
No bare `ZeroDivisionError` escapes — caught in evaluator, re-raised as `EvalError`. ✓
**Status:** PASS

### D3 — result type
**Rule:** whole-valued float prints without `.0`; non-whole prints as float.
```
$ python calc.py "4/2"   → 2
$ python calc.py "7/2"   → 3.5
```
`_fmt()` in `calc.py` checks `isinstance(val, float) and val.is_integer()` and converts to int for display. ✓
**Status:** PASS

### D4 — CLI
```
$ python calc.py "2+3*4"
14
exit: 0

$ python calc.py "1 +"
error: unexpected end of input
(stderr only, stdout empty)
exit: 1

$ python calc.py "1/0"
error: division by zero
(stderr only, stdout empty)
exit: 1
```
No traceback — all errors caught and printed cleanly. ✓
**Status:** PASS

### D5 — tests green + end-to-end
**Command:** `python -m unittest -q`
**Expected:** 0 failures
**Observed:**
```
----------------------------------------------------------------------
Ran 46 tests in 0.001s

OK
```
Prior lex + parse suites still pass (no regression). 46 = 13 lex + 15 parse + 18 eval. ✓
**Status:** PASS

## DONE