lowering: increment world age after toplevel expressions #59703
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When a macro expands to `:toplevel` expression, it seems reasonable (as would be if the expression were not wrapped in `:toplevel`) that any contained struct definitions be available thereafter. For example, this applies to `@enum`, which countrly causes world age erros when attempting to define a method on an enum within the same expression. Fix this by having lowering insert and explicit `latestworld` after toplevel. Fixes #59429
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vtjnash
approved these changes
Sep 30, 2025
mlechu
approved these changes
Sep 30, 2025
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When a macro expands to
:toplevelexpression, it seems reasonable (as would be if the expression were not wrapped in:toplevel) that any contained struct definitions be available thereafter. For example, this applies to@enum, which countrly causes world age erros when attempting to define a method on an enum within the same expression. Fix this by having lowering insert and explicitlatestworldafter toplevel.Fixes #59429
Written by Claude