Dmitriy Novozhilov
e6b5cb5216
Update includes:
- Changing syntax of `OI/`NI` tags from `<!NI;TAG!>` to `<!TAG{NI}!>`
- Fix some incorrect directives
- Change order of diagnostics in some places
- Remove ignored diagnostics from FIR test data (previously `DIAGNOSTICS` didn't work)
- Update FIR dumps in some places and add `FIR_IDENTICAL` if needed
- Replace all JAVAC_SKIP with SKIP_JAVAC directive
56 lines
1.4 KiB
Kotlin
Vendored
56 lines
1.4 KiB
Kotlin
Vendored
// !WITH_NEW_INFERENCE
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// !CHECK_TYPE
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// See also KT-10896: Wrong inference of if / else result type
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interface Option<T>
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class Some<T> : Option<T>
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class None<T> : Option<T>
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fun <T> bind(r: Option<T>): Option<T> {
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return if (r is Some) {
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// Ideally we should infer Option<T> here (see KT-10896)
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(<!TYPE_INFERENCE_FAILED_ON_SPECIAL_CONSTRUCT{OI}!>if<!> (true) <!TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH{OI}!>None()<!> else <!DEBUG_INFO_SMARTCAST{OI}!>r<!>) checkType { <!TYPE_MISMATCH{OI}!>_<!><Option<T>>() }
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// Works correctly
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if (true) None() else r
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}
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else r
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}
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fun <T> bind2(r: Option<T>): Option<T> {
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return if (r is Some) {
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// Works correctly
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if (true) None<T>() else r
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}
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else r
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}
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fun <T, R> bind3(r: Option<T>): Option<T> {
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return if (r is Some) <!TYPE_MISMATCH{NI}!>{
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// Diagnoses an error correctly
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if (true) <!TYPE_MISMATCH{OI}!>None<R>()<!> else r
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}<!>
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else r
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}
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fun <T> bindWhen(r: Option<T>): Option<T> {
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return when (r) {
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is Some -> {
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// Works correctly
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if (true) None() else r
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}
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else -> r
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}
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}
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interface SimpleOption
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class SimpleSome : SimpleOption
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class SimpleNone : SimpleOption
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fun bindNoGeneric(r: SimpleOption): SimpleOption {
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return if (r is SimpleSome) {
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(if (true) SimpleNone() else r) checkType { _<SimpleOption>() }
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if (true) SimpleNone() else r
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}
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else r
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}
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