starlark 0.13.0

An implementation of the Starlark language in Rust.
Documentation 
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# @generated
# To regenerate, run:
# ```
# STARLARK_RUST_REGENERATE_GOLDEN_TESTS=1 cargo test -p starlark --lib
# ```

Code:
def test():
    # Good.
    x = -1
    # Bad.
    y = ~True
    # Union good and bad.
    z = -(1 if True else "")

Error:
error: Unary operator `~` is not available on the type `bool`
 --> filename:6:9
  |
6 |     y = ~True
  |         ^^^^^
  |

Types:
x: int
y: typing.Never
z: int

Compiler typechecker (eval):
error: Unary operator `~` is not available on the type `bool`
 --> filename:6:9
  |
6 |     y = ~True
  |         ^^^^^
  |