e3ddeff230
When a lambda captures a local variable without a contract, future assignments can impact the smartcast stability for that variable within the lambda. Because future assignments can appear in both resolved and unresolved code, track each assignment as encountered. To determine if a smartcast can be considered stable, check that all future assignments are resolved and do not revert variable to a super type. ^KT-58191 Fixed
112 lines
2.6 KiB
Kotlin
Vendored
112 lines
2.6 KiB
Kotlin
Vendored
// SKIP_TXT
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// ISSUE: KT-55338
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fun test_1() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = "hello"
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}
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<!DEBUG_INFO_SMARTCAST!>s<!>.length // smartcast in K1 and K2
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noInlineRun { <!DEBUG_INFO_SMARTCAST!>s<!>.length } // smartcast in K1 and K2
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}
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}
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fun test_2_1() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = "hello"
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}
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<!DEBUG_INFO_SMARTCAST!>s<!>.length // smartcast in K1 and K2
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noInlineRun { <!SMARTCAST_IMPOSSIBLE!>s<!>.length } // unsafe call in K1 and K2
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s = ""
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}
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}
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fun test_2_2() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = "hello"
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}
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<!DEBUG_INFO_SMARTCAST!>s<!>.length // smartcast in K1 and K2
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noInlineRun { <!SMARTCAST_IMPOSSIBLE!>s<!>.length } // unsafe call in K1 and K2
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s = null
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}
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}
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fun test_3_1() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = "hello"
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} else {
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s = null
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}
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s<!UNSAFE_CALL!>.<!>length // unsafe call in K1 and K2
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noInlineRun { s<!UNSAFE_CALL!>.<!>length } // unsafe call in K1 and K2
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}
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}
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fun test_3_2() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = "hello"
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} else {
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s = "world"
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}
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<!DEBUG_INFO_SMARTCAST!>s<!>.length // smartcast in K1 and K2
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noInlineRun { <!DEBUG_INFO_SMARTCAST!>s<!>.length } // smartcast in K1 and K2
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}
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}
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fun test_4_1() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = getString()
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} else {
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s = getNullableString()
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}
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s<!UNSAFE_CALL!>.<!>length // unsafe call in K1 and K2
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noInlineRun { s<!UNSAFE_CALL!>.<!>length } // unsafe call in K1 and K2
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}
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}
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fun test_4_2() {
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var s: String? = null
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for (i in 1..10) {
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if (s == null) {
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s = getString()
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} else {
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s = getString()
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}
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<!DEBUG_INFO_SMARTCAST!>s<!>.length // smartcast in K1 and K2
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noInlineRun { <!DEBUG_INFO_SMARTCAST!>s<!>.length } // smartcast in K1 and K2
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}
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}
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fun test_5() {
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var s: String? = <!VARIABLE_WITH_REDUNDANT_INITIALIZER!>null<!>
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for (i in 1..10) {
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s = null
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s = getString()
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<!DEBUG_INFO_SMARTCAST!>s<!>.length // smartcast in K1 and K2
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noInlineRun { <!DEBUG_INFO_SMARTCAST!>s<!>.length } // smartcast in K1, unsafe call in K2
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}
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}
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fun getNullableString(): String? = null
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fun getString(): String = "hello"
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fun noInlineRun(block: () -> Unit) {}
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