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Preliminary declaration visitor for estimating local variable's predictability for smart casts

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Predictability estimation algorithm is completely new, but backward compatibility should present.
A large set of tests. Some updated tests.
Smart casts allowed for captured variables if they are not modified in closure #KT-9051 Fixed
Also #KT-8643 Fixed
Also #KT-7976 Fixed
Correct handling of lambda arguments in functions #KT-9143 Fixed
This commit is contained in:
Mikhail Glukhikh
2015-09-28 17:18:19 +03:00
parent de7d2978db
commit 4b35e3b135
84 changed files with 1047 additions and 43 deletions
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idea/testData/checker/infos/SmartCasts.kt
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+4 -1
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@@ -212,7 +212,10 @@ fun f(): String {
if (<info>a</info> is String) {
val <warning>i</warning>: String = <info descr="Smart cast to kotlin.String"><info descr="Wrapped into a reference object to be modified when captured in a closure">a</info></info>
<info descr="Smart cast to kotlin.String"><info descr="Wrapped into a reference object to be modified when captured in a closure">a</info></info>.compareTo("f")
val <warning>f</warning>: Function0<String> = { <error descr="[SMARTCAST_IMPOSSIBLE] Smart cast to 'kotlin.String' is impossible, because 'a' could have changed since the is-check">a</error> }
val <warning>f</warning>: Function0<String> = {
<info>a</info> = 42
<error descr="[TYPE_MISMATCH] Type mismatch: inferred type is kotlin.Any but kotlin.String was expected">a</error>
}
return <error descr="[SMARTCAST_IMPOSSIBLE] Smart cast to 'kotlin.String' is impossible, because 'a' could have changed since the is-check">a</error>
}
return ""