Nikolay Lunyak
f0720c1d12
The compiler should only report diagnostics for
comparisons over builtins and identity-less types,
other incompatibilities should be reported
via inspections.
It's ok that in `equalityChecksOnIntegerTypes`
instead of `EQUALITY_NOT_APPLICABLE_WARNING` we get
`EQUALITY_NOT_APPLICABLE`, because
`ProperEqualityChecksInBuilderInferenceCalls`
is already active by default.
This change also replaces the notion of a representative superclass
with the least upper bound.
This makes complex types like
intersection/flexible transparent to
RULES1-based compatibility checks.
One way to look at it is to think
that this is an automatic way of handling
type parameters: automatic picking of
"interesting" bounds, and checking them against one another.
Note that `TypeIntersector.intersectTypes`
for `Int` and `T` where `T` is a type parameter
may return both `{Int & T}` or `null`
depending on `T`-s bounds. At the same time,
for type parameters `T` and `K` it will
always return `{T & K}`.
`ConeTypeIntersector.intersectTypes`, on the
other hand, will always return `{Int & T}`
irrespectively of the bounds. Meaning, the two
intersectors differ in corner cases.
`lowerBoundIfFlexible` call in `isLiterallyTypeParameter` is backed by
the `equalityOfFlexibleTypeParameters` test.
^KT-35134 #fixed-in-k2
^KT-22499 #fixed-in-k2
^KT-46383 #fixed-in-k2
195 lines
7.2 KiB
Kotlin
Vendored
195 lines
7.2 KiB
Kotlin
Vendored
// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_EXPRESSION
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// SKIP_TXT
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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(a)
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val c = a
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>b<!>.equals(10)
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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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}
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// TESTCASE NUMBER: 2
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fun case_2(x: Any) {
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if (x is String) {
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val y = x
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.String")!>y<!>.length
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}
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}
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// TESTCASE NUMBER: 3
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fun case_3(x: Any?) {
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if (x is Number?) {
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var y = x
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if (y == null) throw Exception()
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var z = y
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>z<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>y<!>.toByte()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>z<!>.toByte()
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}
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}
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// TESTCASE NUMBER: 4
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fun case_4(x: Any?) {
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if (x is Number?) {
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var y = x
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while (true && y != null) {
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var z = y
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>z<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>y<!>.toByte()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>z<!>.toByte()
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}
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}
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}
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// TESTCASE NUMBER: 5
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fun case_5(x: Any?) {
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var y = x
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while (false || y != null) {
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if (y is Number) {
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val z = select(y)
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>z<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number")!>y<!>.toByte()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>z<!>.toByte()
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}
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}
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}
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/*
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* TESTCASE NUMBER: 6
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* ISSUES: KT-35668
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*/
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fun case_6(x: Any?) {
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var y = x ?: null!!
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while (false || y is Number) {
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.<!UNRESOLVED_REFERENCE!>toByte<!>()
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}
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}
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/*
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* TESTCASE NUMBER: 7
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* ISSUES: KT-35668
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*/
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fun case_7(x: Any?, z: Any) {
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var y = x ?: null!!
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while (false || y === z) {
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.equals(10)
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}
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}
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/*
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* TESTCASE NUMBER: 8
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* ISSUES: KT-35668
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*/
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fun case_8(x: Any?, z: Any) {
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var y = x ?: null!!
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y == z || return
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.equals(10)
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}
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// TESTCASE NUMBER: 9
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fun case_9(x: Any?, z: Any) {
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var y = select(x) ?: return null!!
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z == y || throw null!!
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any?")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.equals(10)
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}
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/*
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* TESTCASE NUMBER: 6
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* ISSUES: KT-35668
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*/
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fun case_10(x: Any?, z: Any, b: Boolean?) {
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var y = x ?: when (b) {
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true -> null!!
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false -> return
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null -> throw Exception()
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}
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z === y || if (b == true) return else if (<!IMPLICIT_BOXING_IN_IDENTITY_EQUALS!>b === false<!>) null!! else throw Exception()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.equals(10)
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}
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// TESTCASE NUMBER: 11
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fun case_11(x: Any?, z: Any, b: Boolean?) {
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while (true) {
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var y = x ?: if (b == true) continue<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!> else if (!(b != false)) return else break <!USELESS_ELVIS!>?: break::class<!>
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z !== y && if (b == true) return else if (<!IMPLICIT_BOXING_IN_IDENTITY_EQUALS!>b === false<!>) null!!else throw Exception()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Any")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.equals(10)
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}
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}
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// TESTCASE NUMBER: 12
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fun case_12(x: Any?, z: Any, b: Boolean?) {
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while (true) {
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var y = select(x) ?: if (b == true) continue<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!> else if (!(b != false)) return else break <!USELESS_ELVIS!>?: break::class<!>
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select(z) !== y && if (b == true) return else if (<!IMPLICIT_BOXING_IN_IDENTITY_EQUALS!>b === false<!>) null!!else throw Exception()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any?")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>y<!>.equals(10)
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}
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}
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// TESTCASE NUMBER: 13
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fun case_13(x: Any?) {
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if (x is Number?) {
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var y = select(select(select(select(select(select(x))))))
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if (y == null) throw Exception()
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var z = select(select(select(select(y), select(y)), select(select(y), select(y))), select(select(select(y), select(y)), select(select(y), select(y))))
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number?")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number? & kotlin.Number")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>z<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number? & kotlin.Number")!>y<!>.toByte()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>z<!>.toByte()
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}
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}
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// TESTCASE NUMBER: 14
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fun case_14(x: Any?) {
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if (x is Number?) {
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var y = removeNullable(x)
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number?")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>y<!>.toByte()
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}
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}
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// TESTCASE NUMBER: 15
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fun case_15(x: Any?) {
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if (x is Number?) {
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var y = removeNullable(removeNullable(removeNullable(removeNullable(x), removeNullable(x)), removeNullable(removeNullable(x), removeNullable(x))), removeNullable(removeNullable(removeNullable(x), removeNullable(x)), removeNullable(removeNullable(x), removeNullable(x))))
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if (y !is Int) throw Exception()
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var z = select(select(select(select(y), select(y)), select(select(y), select(y))), select(select(select(y), select(y)), select(select(y), select(y))))
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any? & kotlin.Number?")!>x<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number & kotlin.Int")!>y<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number & kotlin.Int")!>y<!>.inv()
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>.inv()
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}
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}
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