mirror of
https://github.com/jlengrand/kotlin.git
synced 2026-05-13 00:21:28 +00:00
f371e67ce8
rewrite type inference for 'when' using special constructs. This fixes several type inference issues for 'when': KT-9929, KT-9972, KT-10439, KT-10463 along with some other diagnostics-related issues.
86 lines
3.0 KiB
Kotlin
Vendored
86 lines
3.0 KiB
Kotlin
Vendored
fun idAny(x: Any) = x
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fun <T> id(x: T) = x
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fun idUnit(x: Unit) = x
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class MList {
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// MutableCollection<T>.add returns Boolean, but nobody cares
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fun add(): Boolean = true
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}
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val mlist = MList()
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fun work() {}
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val xx1 = <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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val xx2: Unit = <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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val xx3 = idAny(<!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>)
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val xx4 = id(<!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>)
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val xx5 = idUnit(<!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>)
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val xx6 = null ?: <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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val xx7 = "" + <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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val wxx1 = <!NO_ELSE_IN_WHEN!>when<!> { true -> 42 }
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val wxx2: Unit = <!NO_ELSE_IN_WHEN!>when<!> { true -> <!CONSTANT_EXPECTED_TYPE_MISMATCH!>42<!> }
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val wxx3 = idAny(<!NO_ELSE_IN_WHEN!>when<!> { true -> 42 })
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val wxx4 = id(<!NO_ELSE_IN_WHEN!>when<!> { true -> 42 })
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val wxx5 = idUnit(<!NO_ELSE_IN_WHEN!>when<!> { true -> <!CONSTANT_EXPECTED_TYPE_MISMATCH!>42<!> })
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val wxx6 = null ?: <!NO_ELSE_IN_WHEN!>when<!> { true -> 42 }
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val wxx7 = "" + <!NO_ELSE_IN_WHEN!>when<!> { true -> 42 }
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val fn1 = { if (true) <!UNUSED_EXPRESSION!>42<!> }
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val fn2 = { if (true) mlist.add() }
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val fn3 = { if (true) work() }
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val fn4 = { <!NO_ELSE_IN_WHEN!>when<!> { true -> 42 } }
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val fn5 = { <!NO_ELSE_IN_WHEN!>when<!> { true -> mlist.add() } }
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val fn6 = { when { true -> work() } }
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val ufn1: () -> Unit = { if (true) <!UNUSED_EXPRESSION!>42<!> }
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val ufn2: () -> Unit = { if (true) mlist.add() }
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val ufn3: () -> Unit = { if (true) work() }
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val ufn4: () -> Unit = { when { true -> <!UNUSED_EXPRESSION!>42<!> } }
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val ufn5: () -> Unit = { when { true -> mlist.add() } }
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val ufn6: () -> Unit = { when { true -> work() } }
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fun f1() = <!INVALID_IF_AS_EXPRESSION!>if (true) work()<!>
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fun f2() = <!INVALID_IF_AS_EXPRESSION!>if (true) mlist.add()<!>
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fun f3() = <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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fun f4(): Unit = <!INVALID_IF_AS_EXPRESSION!>if (true) work()<!>
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fun f5(): Unit = <!INVALID_IF_AS_EXPRESSION!>if (true) mlist.add()<!>
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fun f6(): Unit = <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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fun g1() = <!NO_ELSE_IN_WHEN!>when<!> { true -> work() }
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fun g2() = <!NO_ELSE_IN_WHEN!>when<!> { true -> mlist.add() }
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fun g3() = <!NO_ELSE_IN_WHEN!>when<!> { true -> 42 }
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fun g4(): Unit = <!NO_ELSE_IN_WHEN!>when<!> { true -> work() }
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fun g5(): Unit = <!NO_ELSE_IN_WHEN!>when<!> { true -> <!TYPE_MISMATCH!>mlist.add()<!> }
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fun g6(): Unit = <!NO_ELSE_IN_WHEN!>when<!> { true -> <!CONSTANT_EXPECTED_TYPE_MISMATCH!>42<!> }
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fun foo1(x: String?) {
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"" + <!INVALID_IF_AS_EXPRESSION!>if (true) 42<!>
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w@while (true) {
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x ?: if (true) break
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x ?: when { true -> break@w }
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}
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}
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fun foo2() {
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if (true) {
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mlist.add()
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}
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else if (true) {
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mlist.add()
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}
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else if (true) {
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mlist.add()
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}
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when {
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true -> mlist.add()
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else -> when {
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true -> mlist.add()
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else -> when {
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true -> mlist.add()
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}
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}
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}
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}
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