02fedeb9ed
FIR DFA: revalidate reassigned variables after loops
...
If a certain type statement is true on loop entry and all continue
paths, then it is also true on exit if the condition did not reassign
the variable.
^KT-7676 tag fixed-in-k2
2022-12-08 10:19:27 +00:00
a0a57581ec
FIR: Do not add alias for variables with explicit type
2021-10-20 22:05:24 +03:00
c7272f6986
FIR checker: SENSELESS_(COMPARISON|NULL_IN_WHEN)
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Currently DFA does not set "definitely equal to null" for access to variables that got assigned `null`. For example, FIR should mark the following line as SENSELESS_COMPARISON due to `s = null` above.
https://github.com/JetBrains/kotlin/blob/d1531f9cdd5852352c0133198706125dc63b6007/compiler/testData/diagnostics/tests/smartCasts/alwaysNull.fir.kt#L6
The problem is at https://github.com/JetBrains/kotlin/blob/7e9f27436a77de1c76e3705da7aa1fbe8938336b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/FirDataFlowAnalyzer.kt#L1104
For null assignment, ideally the type should be `Nothing?`. This is
addressed in a followup commit instead.
2021-08-06 22:57:16 +03:00
5711a8d610
[FIR] Support PreliminaryLoopVisitor in FIR DFA
2021-02-15 11:37:39 +03:00
6735cc8937
[FIR] Implement new bound smartcast algorithm
...
#KT-36055 Fixed
2020-02-12 10:17:45 +03:00
5f639dd2ae
[FIR-TEST] Update testdata of old frontend tests
2020-01-22 14:49:22 +03:00
2536fa0cd5
[FIR-TEST] Add new testdata generated after changes in previous commit
2019-12-12 16:11:46 +03:00
pyos