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tracking issue: remove Value& out parameters #1136

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opened 2026-02-23 22:52:55 +00:00 by pennae · 1 comment
pennae commented 2026-02-23 22:52:55 +00:00
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main has pretty resonable support for returning values directly since pointer tagging happened. we should remove out parameters from all signatures and return proper values instead.

and numerous others probably

`main` has pretty resonable support for returning values directly since pointer tagging happened. we should remove out parameters from all signatures and return proper values instead. - [x] Expr::eval (https://gerrit.lix.systems/c/lix/+/5219) - [ ] primops - [x] EvalState::callFunction (https://gerrit.lix.systems/c/lix/+/5253) - [ ] EvalState::autoCallFunction - [ ] EvalState::concatLists - [x] EvalState::eval\* (https://gerrit.lix.systems/c/lix/+/5254) - [ ] EvalState::mk\* - [ ] Evaluator::evalLazily - [ ] getDerivation - [ ] parseJSON and numerous others probably
lix-bot commented 2026-02-23 23:07:22 +00:00
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This issue was mentioned on Gerrit on the following CLs:

  • comment in cl/5219 ("libexpr: migrate Expr::eval to return a Value, take 2")
  • commit message in cl/5305 ("libexpr: Migrate EvalState::mkOutputString to return a Value")
  • commit message in cl/5307 ("libexpr/primops/fromTOML: Migrate visit lambda to return a value")
  • commit message in cl/5303 ("libexpr: Migrate mkStorePathString to return a Value")
  • commit message in cl/5301 ("libexpr: Migrate makePositionThunks to return Value tuple")
  • commit message in cl/5308 ("libexpr: Migrate EvalState::mkPos to return a Value")
  • commit message in cl/5309 ("libexpr: Migrate emitTreeAttrs to return a Value")
<!-- GERRIT_LINKBOT: {"cls": [{"backlink": "https://gerrit.lix.systems/c/lix/+/5219", "number": 5219, "kind": "comment"}, {"backlink": "https://gerrit.lix.systems/c/lix/+/5305", "number": 5305, "kind": "commit message"}, {"backlink": "https://gerrit.lix.systems/c/lix/+/5307", "number": 5307, "kind": "commit message"}, {"backlink": "https://gerrit.lix.systems/c/lix/+/5303", "number": 5303, "kind": "commit message"}, {"backlink": "https://gerrit.lix.systems/c/lix/+/5301", "number": 5301, "kind": "commit message"}, {"backlink": "https://gerrit.lix.systems/c/lix/+/5308", "number": 5308, "kind": "commit message"}, {"backlink": "https://gerrit.lix.systems/c/lix/+/5309", "number": 5309, "kind": "commit message"}], "cl_meta": {"5219": {"change_title": "libexpr: migrate Expr::eval to return a Value, take 2"}, "5305": {"change_title": "libexpr: Migrate EvalState::mkOutputString to return a Value"}, "5307": {"change_title": "libexpr/primops/fromTOML: Migrate `visit` lambda to return a value"}, "5303": {"change_title": "libexpr: Migrate mkStorePathString to return a Value"}, "5301": {"change_title": "libexpr: Migrate makePositionThunks to return Value tuple"}, "5308": {"change_title": "libexpr: Migrate EvalState::mkPos to return a Value"}, "5309": {"change_title": "libexpr: Migrate emitTreeAttrs to return a Value"}}} --> This issue was mentioned on Gerrit on the following CLs: * comment in [cl/5219](https://gerrit.lix.systems/c/lix/+/5219) ("libexpr: migrate Expr::eval to return a Value, take 2") * commit message in [cl/5305](https://gerrit.lix.systems/c/lix/+/5305) ("libexpr: Migrate EvalState::mkOutputString to return a Value") * commit message in [cl/5307](https://gerrit.lix.systems/c/lix/+/5307) ("libexpr/primops/fromTOML: Migrate `visit` lambda to return a value") * commit message in [cl/5303](https://gerrit.lix.systems/c/lix/+/5303) ("libexpr: Migrate mkStorePathString to return a Value") * commit message in [cl/5301](https://gerrit.lix.systems/c/lix/+/5301) ("libexpr: Migrate makePositionThunks to return Value tuple") * commit message in [cl/5308](https://gerrit.lix.systems/c/lix/+/5308) ("libexpr: Migrate EvalState::mkPos to return a Value") * commit message in [cl/5309](https://gerrit.lix.systems/c/lix/+/5309) ("libexpr: Migrate emitTreeAttrs to return a Value")
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