Fix infinite recursion in type checker on recursive items #17264
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LGTM, just a few nits to clear up. |
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Force pushed new version with fixes |
This new pass is run before type checking so that recursive items are detected beforehand. This prevents going into an infinite recursion during type checking when a recursive item is used in an array type. As a bonus, use `span_err` instead of `span_fatal` so multiple errors can be reported. Closes issue rust-lang#17252
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After some more discussion on IRC, I tweaked the pass to use |
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Recursive items are currently detected in the `check_const` pass which runs after type checking. This means a recursive static item used as an array length will cause type checking to blow the stack. This PR separates the recursion check out into a separate pass which is run before type checking. Closes issue #17252 r? @nick29581
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Recursive items are currently detected in the
check_constpass which runs after type checking. This means a recursive static item used as an array length will cause type checking to blow the stack. This PR separates the recursion check out into a separate pass which is run before type checking.Closes issue #17252
r? @nick29581