10 Commits

Author SHA1 Message Date
Brian Norman b2041e0927 [FIR] Disable data flow from in-place lambdas
There are many complications with the current design of passing data
from within in-place lambdas to surrounding code. Solving these
complications will involve more time to investigation than is available
within the K2 release. So we are disabling passing type statement
information from lambdas for the time being until more time can be
devoted to a more complete solution.

^KT-60958 Fixed
^KT-63530 Fixed
2023-12-14 16:40:27 +00:00
Tianyu Geng c7272f6986 FIR checker: SENSELESS_(COMPARISON|NULL_IN_WHEN)
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
Tianyu Geng 0ecc752813 FIR checker: report SMARTCAST_IMPOSSIBLE for local variables 2021-06-29 10:46:38 +03:00
Dmitriy Novozhilov 5711a8d610 [FIR] Support PreliminaryLoopVisitor in FIR DFA 2021-02-15 11:37:39 +03:00
Mikhail Glukhikh 7d4eaefd36 FIR: report UNSAFE_CALL on dot when possible 2021-01-29 16:55:26 +03:00
Jinseong Jeon e72ddbcbfe FIR checker: differentiate UNSAFE_CALL from INAPPLICABLE_CANDIDATE
To do so, inside the root cause of inapplicable candidate errors,
we will record expected/actual type of receiver, if any.
That will help identifying inapplicable calls on nullable receiver.
2021-01-29 16:54:23 +03:00
Dmitriy Novozhilov 6735cc8937 [FIR] Implement new bound smartcast algorithm
#KT-36055 Fixed
2020-02-12 10:17:45 +03:00
Dmitriy Novozhilov 384a094193 [FIR] Unbound aliased variables in DFA more carefully 2020-01-22 14:49:23 +03:00
Dmitriy Novozhilov 5f639dd2ae [FIR-TEST] Update testdata of old frontend tests 2020-01-22 14:49:22 +03:00
Dmitriy Novozhilov 2536fa0cd5 [FIR-TEST] Add new testdata generated after changes in previous commit 2019-12-12 16:11:46 +03:00