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FIR DFA: revalidate reassigned variables after loops

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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
This commit is contained in:
pyos
2022-11-14 16:40:41 +01:00
committed by teamcity
parent f9745bd3f1
commit 02fedeb9ed
8 changed files with 83 additions and 59 deletions
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compiler/tests-spec/testData/diagnostics/notLinked/dfa/pos/54.fir.kt
Vendored
+6 -6
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@@ -18,8 +18,8 @@ fun case_1() {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>.length
}
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>.<!UNRESOLVED_REFERENCE!>length<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>.length
}
}
@@ -40,8 +40,8 @@ fun case_2() {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>.length
}
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>.<!UNRESOLVED_REFERENCE!>length<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>.length
}
}
@@ -106,8 +106,8 @@ fun case_5() {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>.length
}
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>.<!UNRESOLVED_REFERENCE!>length<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>b<!>.length
}
}