[NI] Add resolution applicability for resolved candidates with error

New resolution applicability is needed in cases when error is found,
but candidate still should be selected. Currently there are two cases,
when this behaviour is required:
- unstable smartcast (choose candidate with non-nullable parameter)
- unknown lambda parameter type (against non-functional expected type)

KT-36264
This commit is contained in:
Pavel Kirpichenkov
2020-02-04 17:26:28 +03:00
parent 4fa87d2caa
commit e40ba73950
16 changed files with 188 additions and 86 deletions
@@ -0,0 +1,88 @@
// !LANGUAGE: +NewInference
// !DIAGNOSTICS: -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_VARIABLE -UNUSED_VALUE -VARIABLE_WITH_REDUNDANT_INITIALIZER
// SKIP_TXT
/*
* KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (NEGATIVE)
*
* SECTIONS: dfa
* NUMBER: 46
* DESCRIPTION: Raw data flow analysis test
* HELPERS: classes, objects, typealiases, functions, enumClasses, interfaces, sealedClasses
*/
// TESTCASE NUMBER: 1
fun case_1(x: Int) = ""
fun case_1(x: Int?) = 10
fun case_1() {
var x: Int? = 10
var y = { x = null }
if (x != null) {
val z = case_1(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?"), SMARTCAST_IMPOSSIBLE, SMARTCAST_IMPOSSIBLE!>x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
// TESTCASE NUMBER: 2
val case_2_prop: Int?
get() = 10
fun case_2(x: Int) = ""
fun case_2(x: Int?) = 10
fun case_2() {
if (case_2_prop != null) {
val z = case_2(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?"), SMARTCAST_IMPOSSIBLE, SMARTCAST_IMPOSSIBLE!>case_2_prop<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
// TESTCASE NUMBER: 3
class Case4 {
var x: Int? = 10
}
fun case_3(x: Int) = ""
fun case_3(x: Int?) = 10
fun case_3(y: Case4) {
if (y.x != null) {
val z = case_3(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?"), SMARTCAST_IMPOSSIBLE, SMARTCAST_IMPOSSIBLE!>y.x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
// TESTCASE NUMBER: 4
open class Case5 {
open val x: Int? = 10
}
fun case_4(x: Int) = ""
fun case_4(x: Int?) = 10
fun case_4(y: Case4) {
if (y.x != null) {
val z = case_4(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?"), SMARTCAST_IMPOSSIBLE, SMARTCAST_IMPOSSIBLE!>y.x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
// TESTCASE NUMBER: 5
class Case6 {
val x: Int? by lazy { 10 }
}
fun case_5(x: Int) = ""
fun case_5(x: Int?) = 10
fun case_5(y: Case4) {
if (y.x != null) {
val z = case_5(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?"), SMARTCAST_IMPOSSIBLE, SMARTCAST_IMPOSSIBLE!>y.x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
// TESTCASE NUMBER: 6
var case_6_prop: Int?
get() = 10
set(value) {}
fun case_6(x: Int) = ""
fun case_6(x: Int?) = 10
fun case_6() {
if (case_6_prop != null) {
val z = case_6(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?"), SMARTCAST_IMPOSSIBLE, SMARTCAST_IMPOSSIBLE!>case_6_prop<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
@@ -21,79 +21,3 @@ fun case_1() {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>z<!>
}
}
// TESTCASE NUMBER: 2
fun case_2(x: Int) = ""
fun case_2(x: Int?) = 10
fun case_2() {
var x: Int? = 10
var y = { x = null }
if (x != null) {
val z = case_2(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?")!>x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
}
}
// TESTCASE NUMBER: 3
val case_3_prop: Int?
get() = 10
fun case_3(x: Int) = ""
fun case_3(x: Int?) = 10
fun case_3() {
if (case_3_prop != null) {
val z = case_3(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?")!>case_3_prop<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
}
}
// TESTCASE NUMBER: 4
class Case4 {
var x: Int? = 10
}
fun case_4(x: Int) = ""
fun case_4(x: Int?) = 10
fun case_4(y: Case4) {
if (y.x != null) {
val z = case_4(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?")!>y.x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
}
}
// TESTCASE NUMBER: 5
open class Case5 {
open val x: Int? = 10
}
fun case_5(x: Int) = ""
fun case_5(x: Int?) = 10
fun case_5(y: Case4) {
if (y.x != null) {
val z = case_5(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?")!>y.x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
}
}
// TESTCASE NUMBER: 6
class Case6 {
val x: Int? by lazy { 10 }
}
fun case_6(x: Int) = ""
fun case_6(x: Int?) = 10
fun case_6(y: Case4) {
if (y.x != null) {
val z = case_6(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?")!>y.x<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
}
}
// TESTCASE NUMBER: 7
var case_7_prop: Int?
get() = 10
set(value) {}
fun case_7(x: Int) = ""
fun case_7(x: Int?) = 10
fun case_7() {
if (case_7_prop != null) {
val z = case_7(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int?")!>case_7_prop<!>)
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>z<!>
}
}