| 73 | |
| 74 | |
| 75 | class Interpreter(namedtuple('Interpreter', 'name id')): |
| 76 | |
| 77 | @classmethod |
| 78 | def from_raw(cls, raw): |
| 79 | if isinstance(raw, cls): |
| 80 | return raw |
| 81 | elif isinstance(raw, str): |
| 82 | return cls(raw) |
| 83 | else: |
| 84 | raise NotImplementedError |
| 85 | |
| 86 | def __new__(cls, name=None, id=None): |
| 87 | main, *_ = _interpreters.get_main() |
| 88 | if id == main: |
| 89 | if not name: |
| 90 | name = 'main' |
| 91 | elif name != 'main': |
| 92 | raise ValueError( |
| 93 | 'name mismatch (expected "main", got "{}")'.format(name)) |
| 94 | id = main |
| 95 | elif id is not None: |
| 96 | if not name: |
| 97 | name = 'interp' |
| 98 | elif name == 'main': |
| 99 | raise ValueError('name mismatch (unexpected "main")') |
| 100 | assert isinstance(id, int), repr(id) |
| 101 | elif not name or name == 'main': |
| 102 | name = 'main' |
| 103 | id = main |
| 104 | else: |
| 105 | id = _interpreters.create() |
| 106 | self = super().__new__(cls, name, id) |
| 107 | return self |
| 108 | |
| 109 | |
| 110 | # XXX expect_channel_closed() is unnecessary once we improve exc propagation. |
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