Nikolay Lunyak
fab6cec93a
This makes it more consistent and fixes some overlooked corner cases. Also it was decided on the last equality applicability DM (KT-62646) that we'd like `is`/`!is`/`as`/`as?` to work similarly to `===`/`!==`. Also note that it now gives a clearer explaination of why some corner cases work the way they do. For example, `FirPsiDiagnosticTestGenerated.testLambdaInLhsOfTypeOperatorCall` yields `UNCHECKED_CAST` instead of `CAST_NEVER_SUCCEEDS`, because `toTypeInfo()` replaces all type arguments with star projections, even when the argument is not a type parameter. This is because it has been desided to work this way in KT-57779. In `FirPsiOldFrontendDiagnosticsTestGenerated..NeverSucceeds#testNoGenericsRelated` the diagnostic is introduced, because `t2 as FC1` and `FC1` is a final class with no `T5` supertype. `UNCHECKED_CAST` in `FirPsiOldFrontendDiagnosticsTestGenerated.testSmartCast` disappeared, because previously we didn't take smartcasts into account. Note that `FirPsiOldFrontendDiagnosticsTestGenerated.testMappedSubtypes` is a false positive. It appears because `isSubtypeOf()` doesn't take into account platform types in supertypes of the given types (doesn't map them).
148 lines
6.2 KiB
Kotlin
Vendored
148 lines
6.2 KiB
Kotlin
Vendored
// !DIAGNOSTICS: -UNUSED_EXPRESSION
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// SKIP_TXT
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/*
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* KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (POSITIVE)
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*
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* SECTIONS: dfa
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* NUMBER: 34
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* DESCRIPTION: Raw data flow analysis test
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* HELPERS: classes, objects, typealiases, functions, enumClasses, interfaces, sealedClasses
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*/
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// TESTCASE NUMBER: 1
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fun case_1() {
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var a: Any? = null
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if (a == null) return
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val b = select(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>a<!>)
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val c = <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>a<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>c<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>c<!>.equals(10)
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>.equals(10)
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}
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// TESTCASE NUMBER: 2
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fun case_2(a: Any?) {
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if (a is String) {
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val b = a
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.String")!>b<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.String")!>b<!>.length
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}
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}
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// TESTCASE NUMBER: 3
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fun case_3(a: Any?) {
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if (a is String) {
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val b = a
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val c = b
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val d = c
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val e = d
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.String")!>e<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.String")!>e<!>.length
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}
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}
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// TESTCASE NUMBER: 4
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fun case_4(a: Any?) {
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if (a is ClassLevel1) {
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val b = a
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if (b is ClassLevel2) {
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val c = b
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if (c is ClassLevel3) {
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val d = c
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if (d is ClassLevel4) {
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val e = d
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if (e is ClassLevel5) {
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5")!>e<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5")!>e<!>.test1()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5")!>e<!>.test2()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5")!>e<!>.test3()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5")!>e<!>.test4()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5")!>e<!>.test5()
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}
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}
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}
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}
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}
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}
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/*
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* TESTCASE NUMBER: 5
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* UNEXPECTED BEHAVIOUR
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* DISCUSSION: Smartcast due to `e as? ClassLevel5 ?: e as ClassLevel5`
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* ISSUES: KT-30503
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*/
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fun case_5(a: Any?) {
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val b: Any?
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val c: Any?
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val d: Any?
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val e: Any?
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if (
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a is ClassLevel1
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&& if (true) {b = a; false} else {b = a;true}
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&& <!USELESS_IS_CHECK!><!UNINITIALIZED_VARIABLE!>b<!> as ClassLevel2 is ClassLevel2<!>
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&& if (true) {c = <!UNINITIALIZED_VARIABLE!>b<!>;false} else {c = <!UNINITIALIZED_VARIABLE!>b<!>;false}
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&& try {<!UNINITIALIZED_VARIABLE!>c<!> as ClassLevel3;true} finally {<!UNINITIALIZED_VARIABLE!>c<!> as ClassLevel3;false}
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&& when (true) {else -> {d = <!UNINITIALIZED_VARIABLE!>c<!>;true}}
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&& when (true) {else -> {<!UNINITIALIZED_VARIABLE!>d<!> as ClassLevel4;false}}
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&& if (true) {e = <!UNINITIALIZED_VARIABLE!>d<!>;false} else {e = <!UNINITIALIZED_VARIABLE!>d<!>;true}
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&& if (true) {<!UNINITIALIZED_VARIABLE!>e<!> as? ClassLevel5 ?: <!UNINITIALIZED_VARIABLE!>e<!> as ClassLevel5;true} else {<!UNINITIALIZED_VARIABLE!>e<!> as? ClassLevel5 ?: <!UNINITIALIZED_VARIABLE!>e<!> as ClassLevel5;false}
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) {
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5"), UNINITIALIZED_VARIABLE!>e<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5"), UNINITIALIZED_VARIABLE!>e<!>.test1()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5"), UNINITIALIZED_VARIABLE!>e<!>.test2()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5"), UNINITIALIZED_VARIABLE!>e<!>.test3()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5"), UNINITIALIZED_VARIABLE!>e<!>.test4()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel5"), UNINITIALIZED_VARIABLE!>e<!>.test5()
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}
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}
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// TESTCASE NUMBER: 5
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fun case_6() {
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val b: Any?
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val c: Any?
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val d: Any?
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val e: Any?
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when (if (true) {b = 11} else {b = 12}) {
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when (if (true) {b.inv(); c = b; c <!CAST_NEVER_SUCCEEDS!>as<!> ClassLevel1;} else {b.inv(); c = b; c <!CAST_NEVER_SUCCEEDS!>as<!> ClassLevel1;}) {
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else -> kotlin.Unit
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} -> when (if (true) {c.test1(); d = c; d <!CAST_NEVER_SUCCEEDS!>as<!> ClassLevel2} else {c.test1(); d = c; d <!CAST_NEVER_SUCCEEDS!>as<!> ClassLevel2}) {
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when (if (true) {d.test2(); e = d; e <!CAST_NEVER_SUCCEEDS!>as<!> ClassLevel3} else {d.test2(); e = d; e <!CAST_NEVER_SUCCEEDS!>as<!> ClassLevel3}) {
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else -> ClassLevel2()
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} -> {
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.inv())
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.test1())
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.test2())
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.test3())
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}
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else -> {
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.inv())
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.test1())
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.test2())
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println(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Int & ClassLevel3")!>e<!>.test3())
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}
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}
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}
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}
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/*
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* TESTCASE NUMBER: 7
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* UNEXPECTED BEHAVIOUR
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*/
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fun case_7() {
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val d = ClassLevel1()
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var e: Any?
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e = d
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e as ClassLevel2
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e = d
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel2")!>e<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel2")!>e<!>.test1()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & ClassLevel2")!>e<!>.test2()
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}
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