Fix caching features across backtracking #2484
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In the local loop during resolution all variables need to be reset whenever we backtrack up a frame, but currently the `method` and `features` set are accidentally not reset whenever we backtrack. Calculate the `method` later and cache `features` in each frame so we can properly backtrack. Closes rust-lang#2472
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Fix caching features across backtracking In the local loop during resolution all variables need to be reset whenever we backtrack up a frame, but currently the `method` and `features` set are accidentally not reset whenever we backtrack. Calculate the `method` later and cache `features` in each frame so we can properly backtrack. Closes #2472
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☀️ Test successful - cargo-linux-32, cargo-linux-64, cargo-mac-32, cargo-mac-64, cargo-win-gnu-32, cargo-win-gnu-64, cargo-win-msvc-32, cargo-win-msvc-64 |
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In the local loop during resolution all variables need to be reset whenever we
backtrack up a frame, but currently the
methodandfeaturesset areaccidentally not reset whenever we backtrack. Calculate the
methodlater andcache
featuresin each frame so we can properly backtrack.Closes #2472