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4850c187ea
This fixes cycle panics in several ecosystem projects (moved to `good.txt` in a following PR https://github.com/astral-sh/ruff/pull/17834 because our mypy-primer job doesn't handle it well if we move projects to `good.txt` in the same PR that fixes `ty` to handle them), as well as in the minimal case in the added mdtest. It also fixes a number of panicking fuzzer seeds. It doesn't appear to cause any regression in any ecosystem project or any fuzzer seed.
15 lines
266 B
Markdown
15 lines
266 B
Markdown
# Cycles
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## Function signature
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Deferred annotations can result in cycles in resolving a function signature:
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```py
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from __future__ import annotations
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# error: [invalid-type-form]
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def f(x: f):
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pass
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reveal_type(f) # revealed: def f(x: Unknown) -> Unknown
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```
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