feat: Add Guppy type aliases#1645

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Commits on Jun 19, 2026

feat: add Guppy type aliases
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fix: Improve cycle detection for recursive type aliases

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Copilot
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feat: Require explicit name argument in type_alias()

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Copilot
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feat: Support generic type aliases with params= argument

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Copilot
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test: Add error tests for invalid type aliases

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Copilot
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test: Extend integration tests for type aliases

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Copilot
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feat: Support Python 3.12+ type statement syntax for aliases

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Copilot
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fix: Remove misleading help text from recursive alias error

ss2165
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Copilot
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fix: Improve cycle error notes to show definition sites Rust-style

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Copilot
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chore: Apply ruff format

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Copilot
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test: Add error test for recursive alias through a struct type argument

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Copilot
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fix: Move type_alias overloads inside py312 guard to avoid single-overload error

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Copilot
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fix: Address Copilot review comments

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Copilot
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test: Remove redundant float alias test

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Copilot
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feat: Remove Python 3.12 type statement syntax for aliases

ss2165
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Copilot
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feat: Support const_var params in type aliases via deferred resolution

ss2165
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Copilot
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refactor: Use a single TypeParsingCtx when checking type aliases

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Copilot
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refactor: Tidy cycle-note construction for recursive aliases

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Copilot
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refactor: Revert unrelated linecache change in _parse_expr_string

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Copilot
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test: Add error tests for direct type_alias argument errors

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Copilot
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fix: Assert note_file is not None rather than silently skipping

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Copilot
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refactor: Drop redundant runtime guards covered by the type signature

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feat: Add Guppy type aliases#1645

feat: Add Guppy type aliases#1645
ss2165 wants to merge 22 commits into
mainfrom
ss/push-qxzxrlrrysko

Commits on Jun 19, 2026

feat: add Guppy type aliases

fix: Improve cycle detection for recursive type aliases

feat: Require explicit name argument in type_alias()

feat: Support generic type aliases with params= argument

test: Add error tests for invalid type aliases

test: Extend integration tests for type aliases

feat: Support Python 3.12+ type statement syntax for aliases

fix: Remove misleading help text from recursive alias error

fix: Improve cycle error notes to show definition sites Rust-style

chore: Apply ruff format

test: Add error test for recursive alias through a struct type argument

fix: Move type_alias overloads inside py312 guard to avoid single-overload error

fix: Address Copilot review comments

test: Remove redundant float alias test

feat: Remove Python 3.12 type statement syntax for aliases

feat: Support const_var params in type aliases via deferred resolution

refactor: Use a single TypeParsingCtx when checking type aliases

refactor: Tidy cycle-note construction for recursive aliases

refactor: Revert unrelated linecache change in _parse_expr_string

test: Add error tests for direct type_alias argument errors

fix: Assert note_file is not None rather than silently skipping

refactor: Drop redundant runtime guards covered by the type signature