Have "in type" for java fields to be able to check that type in assignment positions (against rhs' type)

^KT-46727 Fixed
2021-09-23 18:11:50 +03:00
parent 3530840da3
commit 0cb56be14f
17 changed files with 368 additions and 2 deletions
@@ -0,0 +1,111 @@
+// WITH_RUNTIME
+
+// FILE: Foo.java
+public class Foo<T> {
+    public T value;
+}
+
+// FILE: Foo2.java
+import org.jetbrains.annotations.Nullable;
+
+public class Foo2<T> {
+    public @Nullable T value;
+}
+
+// FILE: Foo3.java
+import org.jetbrains.annotations.NotNull;
+
+public class Foo3<T> {
+    public @NotNull T value;
+}
+
+// FILE: main.kt
+
+// --- from Java --- //
+
+fun takeStarFoo(x: Foo<*>) {
+    x.value = <!ASSIGNMENT_TYPE_MISMATCH!>"test"<!>
+}
+
+fun main1() {
+    val foo = Foo<Int>()
+    foo.value = 1
+    takeStarFoo(foo)
+    println(foo.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Kotlin --- //
+
+public class Bar<T> {
+    var value: T = null as T
+}
+
+fun takeStarBar(x: Bar<*>) {
+    <!SETTER_PROJECTED_OUT!>x.value<!> = "test"
+}
+
+fun main2() {
+    val bar = Bar<Int>()
+    bar.value = 1
+    takeStarBar(bar)
+    println(bar.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Java (nullable) --- //
+
+fun takeStarFoo2(x: Foo2<*>) {
+    x.value = <!ASSIGNMENT_TYPE_MISMATCH!>"test"<!>
+}
+
+fun main3() {
+    val foo = Foo2<Int>()
+    foo.value = 1
+    takeStarFoo2(foo)
+    println(foo.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Kotlin (nullable) --- //
+public class Bar2<T> {
+    var value: T? = null
+}
+
+fun takeStarBar2(x: Bar2<*>) {
+    <!SETTER_PROJECTED_OUT!>x.value<!> = "test"
+}
+
+fun main4() {
+    val bar = Bar2<Int>()
+    bar.value = 1
+    takeStarBar2(bar)
+    println(bar.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Java (not-null) --- //
+
+fun takeStarFoo3(x: Foo3<*>) {
+    x.value = <!ASSIGNMENT_TYPE_MISMATCH!>"test"<!>
+}
+
+fun main5() {
+    val foo = Foo3<Int>()
+    foo.value = 1
+    takeStarFoo3(foo)
+    println(foo.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Kotlin (field) --- //
+class Bar3<T> {
+    @JvmField
+    var value: T? = null
+}
+
+fun takeStarBar3(x: Bar3<*>) {
+    <!SETTER_PROJECTED_OUT!>x.value<!> = "test"
+}
+
+fun main6() {
+    val bar = Bar3<Int>()
+    bar.value = 1
+    takeStarBar3(bar)
+    println(bar.value) // CCE: String cannot be cast to Number
+}
@@ -0,0 +1,111 @@
+// WITH_RUNTIME
+
+// FILE: Foo.java
+public class Foo<T> {
+    public T value;
+}
+
+// FILE: Foo2.java
+import org.jetbrains.annotations.Nullable;
+
+public class Foo2<T> {
+    public @Nullable T value;
+}
+
+// FILE: Foo3.java
+import org.jetbrains.annotations.NotNull;
+
+public class Foo3<T> {
+    public @NotNull T value;
+}
+
+// FILE: main.kt
+
+// --- from Java --- //
+
+fun takeStarFoo(x: Foo<*>) {
+    x.value = <!TYPE_MISMATCH("Nothing!; String")!>"test"<!>
+}
+
+fun main1() {
+    val foo = Foo<Int>()
+    foo.value = 1
+    takeStarFoo(foo)
+    println(foo.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Kotlin --- //
+
+public class Bar<T> {
+    var value: T = null <!UNCHECKED_CAST!>as T<!>
+}
+
+fun takeStarBar(x: Bar<*>) {
+    <!SETTER_PROJECTED_OUT!>x.value<!> = "test"
+}
+
+fun main2() {
+    val bar = Bar<Int>()
+    bar.value = 1
+    takeStarBar(bar)
+    println(bar.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Java (nullable) --- //
+
+fun takeStarFoo2(x: Foo2<*>) {
+    x.value = <!TYPE_MISMATCH("Nothing?; String")!>"test"<!>
+}
+
+fun main3() {
+    val foo = Foo2<Int>()
+    foo.value = 1
+    takeStarFoo2(foo)
+    println(foo.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Kotlin (nullable) --- //
+public class Bar2<T> {
+    var value: T? = null
+}
+
+fun takeStarBar2(x: Bar2<*>) {
+    x.value = <!TYPE_MISMATCH_DUE_TO_TYPE_PROJECTIONS("Nothing?; String; Bar2<CapturedType(*)>; public final var value: T? defined in Bar2")!>"test"<!>
+}
+
+fun main4() {
+    val bar = Bar2<Int>()
+    bar.value = 1
+    takeStarBar2(bar)
+    println(bar.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Java (not-null) --- //
+
+fun takeStarFoo3(x: Foo3<*>) {
+    x.value = <!TYPE_MISMATCH("Nothing; String")!>"test"<!>
+}
+
+fun main5() {
+    val foo = Foo3<Int>()
+    foo.value = 1
+    takeStarFoo3(foo)
+    println(foo.value) // CCE: String cannot be cast to Number
+}
+
+// --- from Kotlin (field) --- //
+class Bar3<T> {
+    @JvmField
+    var value: T? = null
+}
+
+fun takeStarBar3(x: Bar3<*>) {
+    x.value = <!TYPE_MISMATCH_DUE_TO_TYPE_PROJECTIONS("Nothing?; String; Bar3<CapturedType(*)>; public final var value: T? defined in Bar3")!>"test"<!>
+}
+
+fun main6() {
+    val bar = Bar3<Int>()
+    bar.value = 1
+    takeStarBar3(bar)
+    println(bar.value) // CCE: String cannot be cast to Number
+}
@@ -0,0 +1,53 @@
+package
+
+public fun main1(): kotlin.Unit
+public fun main2(): kotlin.Unit
+public fun main3(): kotlin.Unit
+public fun main4(): kotlin.Unit
+public fun main5(): kotlin.Unit
+public fun takeStarBar(/*0*/ x: Bar<*>): kotlin.Unit
+public fun takeStarBar2(/*0*/ x: Bar2<*>): kotlin.Unit
+public fun takeStarFoo(/*0*/ x: Foo<*>): kotlin.Unit
+public fun takeStarFoo2(/*0*/ x: Foo2<*>): kotlin.Unit
+public fun takeStarFoo3(/*0*/ x: Foo3<*>): kotlin.Unit
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public final var value: T
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar2</*0*/ T> {
+    public constructor Bar2</*0*/ T>()
+    public final var value: T?
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public open class Foo</*0*/ T : kotlin.Any!> {
+    public constructor Foo</*0*/ T : kotlin.Any!>()
+    public final var value: T!
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public open class Foo2</*0*/ T : kotlin.Any!> {
+    public constructor Foo2</*0*/ T : kotlin.Any!>()
+    @org.jetbrains.annotations.Nullable public final var value: T?
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public open class Foo3</*0*/ T : kotlin.Any!> {
+    public constructor Foo3</*0*/ T : kotlin.Any!>()
+    @org.jetbrains.annotations.Nullable public final var value: T?
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+