Fix hasKnownMembers #14762
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Fix hasKnownMembers #14762
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As observed in scala#13900, hasKnownMembers gives problematic false positives. What we are really after is a (nontrivial) upper approximation of known members. Even uninstantiated type variables have such an approximation if their lower bound is defined and different from Nothing. Fixes scala#13900
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Test performance please |
1 similar comment
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Test performance please |
Turns out we cannot make TypeParamRefs have unknown members directly. scala.concurrent.TrieMap fails if we do that.
smarter
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Mar 24, 2022
smarter
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Mar 24, 2022
Co-authored-by: Guillaume Martres <[email protected]>
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Test performance please |
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test performance please |
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performance test scheduled: 11 job(s) in queue, 1 running. |
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Performance test finished successfully: Visit https://dotty-bench.epfl.ch/14762/ to see the changes. Benchmarks is based on merging with main (a2974d9) |
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As observed in #13900, hasKnownMembers gives problematic false positives. What we are
really after is a (nontrivial) upper approximation of known members. Even uninstantiated
type variables have such an approximation if their lower bound is defined and different
from Nothing.
Fixes #13900