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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/pos/4.fir.kt
Vendored
+16 -16
View File
@@ -19,14 +19,14 @@ import otherpackage.*
// TESTCASE NUMBER: 1
fun case_1(x: Any) {
if (x === null) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.Any")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any & kotlin.Nothing")!>x<!>
}
}
// TESTCASE NUMBER: 2
fun case_2(x: Nothing) {
if (x == null) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Nothing & kotlin.Nothing")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Nothing")!>x<!>
}
}
@@ -41,7 +41,7 @@ fun case_3() {
// TESTCASE NUMBER: 4
fun case_4(x: Char) {
if (x == null && true) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Char & kotlin.Char")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Char & kotlin.Nothing")!>x<!>
}
}
@@ -49,7 +49,7 @@ fun case_4(x: Char) {
fun case_5() {
val x: Unit = kotlin.Unit
if (x == null) <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Unit & kotlin.Unit")!>x<!>
if (x == null) <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Unit & kotlin.Nothing")!>x<!>
}
// TESTCASE NUMBER: 6
@@ -57,7 +57,7 @@ fun case_6(x: EmptyClass) {
val y = true
if (x == null && !y) {
<!DEBUG_INFO_EXPRESSION_TYPE("EmptyClass & EmptyClass")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("EmptyClass & kotlin.Nothing")!>x<!>
}
}
@@ -70,7 +70,7 @@ fun case_7() {
// TESTCASE NUMBER: 8
fun case_8(x: TypealiasString) {
if (x == null && <!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & TypealiasString")!>x<!> == null) <!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & TypealiasString")!>x<!>
if (x == null && <!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & kotlin.Nothing")!>x<!> == null) <!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString")!>x<!>
}
// TESTCASE NUMBER: 9
@@ -78,7 +78,7 @@ fun case_9(x: TypealiasString) {
if (x != null) {
} else if (false) {
<!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & TypealiasString")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & kotlin.Nothing")!>x<!>
}
}
@@ -103,7 +103,7 @@ fun case_11(x: TypealiasString, y: TypealiasString) {
if (y == null) {
if (stringProperty != null) {
if (false || false || false || z == null || false) {
<!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & TypealiasString")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & kotlin.Nothing")!>x<!>
}
}
}
@@ -112,14 +112,14 @@ fun case_11(x: TypealiasString, y: TypealiasString) {
// TESTCASE NUMBER: 12
fun case_12(x: TypealiasString, y: TypealiasString) = <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>if (x != null) "1"
else if (y !== null) <!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & TypealiasString")!>x<!>
else if (y !== null) <!DEBUG_INFO_EXPRESSION_TYPE("TypealiasString & kotlin.Nothing")!>x<!>
else "-1"<!>
// TESTCASE NUMBER: 13
fun case_13(x: otherpackage.EmptyClass13) =
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>if (x != null) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>if (x != null) {
1
} else <!DEBUG_INFO_EXPRESSION_TYPE("otherpackage.EmptyClass13 & otherpackage.EmptyClass13")!>x<!><!>
} else <!DEBUG_INFO_EXPRESSION_TYPE("otherpackage.EmptyClass13 & kotlin.Nothing")!>x<!><!>
// TESTCASE NUMBER: 14
class A14 {
@@ -179,7 +179,7 @@ fun case_16() {
val x: TypealiasNothing = return
if (x == null) {
<!DEBUG_INFO_EXPRESSION_TYPE("TypealiasNothing & TypealiasNothing")!>x<!>
<!DEBUG_INFO_EXPRESSION_TYPE("TypealiasNothing")!>x<!>
}
}
@@ -195,7 +195,7 @@ val case_17 = <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>if (true && true && in
//TESTCASE NUMBER: 18
fun case_18(a: DeepObject.A.B.C.D.E.F.G.J) {
if (a == null) {
<!DEBUG_INFO_EXPRESSION_TYPE("DeepObject.A.B.C.D.E.F.G.J & DeepObject.A.B.C.D.E.F.G.J")!>a<!>
<!DEBUG_INFO_EXPRESSION_TYPE("DeepObject.A.B.C.D.E.F.G.J & kotlin.Nothing")!>a<!>
}
}
@@ -256,7 +256,7 @@ fun case_22(a: (() -> Unit)) {
// TESTCASE NUMBER: 23
fun case_23(a: ((Float) -> Int), b: Float) {
if (a == null && b == null) {
val x = <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>a(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Float & kotlin.Float")!>b<!>)<!>
val x = <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>a(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Float & kotlin.Nothing")!>b<!>)<!>
if (x !== null) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>x<!>
}
@@ -276,13 +276,13 @@ fun case_24(a: ((() -> Unit) -> Unit), b: (() -> Unit)) {
}
// TESTCASE NUMBER: 25
fun case_25(a: (() -> Unit) -> Unit, b: (() -> Unit) -> Unit = if (a == null) <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Function0<kotlin.Unit>, kotlin.Unit> & kotlin.Function1<kotlin.Function0<kotlin.Unit>, kotlin.Unit>")!>a<!> else {{}}) {
fun case_25(a: (() -> Unit) -> Unit, b: (() -> Unit) -> Unit = if (a == null) <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Function0<kotlin.Unit>, kotlin.Unit> & kotlin.Nothing")!>a<!> else {{}}) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Function0<kotlin.Unit>, kotlin.Unit>")!>a<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Function0<kotlin.Unit>, kotlin.Unit>")!>b<!>
}
// TESTCASE NUMBER: 26
fun case_26(a: Int, b: Int = if (a === null) <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int & kotlin.Int")!>a<!> else 0) {
fun case_26(a: Int, b: Int = if (a === null) <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int & kotlin.Nothing")!>a<!> else 0) {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>a<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>b<!>
}