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FIR DFA: smartcast variable to Nothing? on null assignment

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In order to make resolution still work for members not available from
`Nothing`, we track the type without `Nothing?` and use that for
resolution instead.
This commit is contained in:
Tianyu Geng
2021-07-22 10:01:10 -07:00
committed by teamcityserver
parent 7e2f15f532
commit 4726dcce40
54 changed files with 334 additions and 320 deletions
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compiler/tests-spec/testData/diagnostics/notLinked/dfa/neg/35.fir.kt
Vendored
+6 -6
View File
@@ -37,8 +37,8 @@ fun case_3() {
var x: String?
x = "Test"
println("${try { } finally { x = null }}")
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String?")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String?")!>x<!><!UNSAFE_CALL!>.<!>length
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String? & kotlin.Nothing?")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String? & kotlin.Nothing?")!>x<!><!UNSAFE_CALL!>.<!>length
}
/*
@@ -76,8 +76,8 @@ fun case_6() {
var x: String?
x = "Test"
println("${try { } catch (e: Exception) { } finally { x = null }}")
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String?")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String?")!>x<!><!UNSAFE_CALL!>.<!>length
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String? & kotlin.Nothing?")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String? & kotlin.Nothing?")!>x<!><!UNSAFE_CALL!>.<!>length
}
/*
@@ -115,6 +115,6 @@ fun case_9() {
var x: String?
x = "Test"
println("${when (null) { else -> x = null } }")
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String?")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String?")!>x<!><!UNSAFE_CALL!>.<!>length
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String? & kotlin.Nothing?")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String? & kotlin.Nothing?")!>x<!><!UNSAFE_CALL!>.<!>length
}