Andrey Breslav
51 lines
1.9 KiB
Kotlin
51 lines
1.9 KiB
Kotlin
class In<in T>() {
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fun f(<!UNUSED_PARAMETER!>t<!> : T) : Unit {}
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fun f(<!UNUSED_PARAMETER!>t<!> : Int) : Int = 1
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fun f1(<!UNUSED_PARAMETER!>t<!> : T) : Unit {}
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}
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class Out<out T>() {
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fun f() : T {throw IllegalStateException()}
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fun f(a : Int) : Int = a
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}
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class Inv<T>() {
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fun f(t : T) : T = t
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fun inf(<!UNUSED_PARAMETER!>t<!> : T) : Unit {}
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fun outf() : T {throw IllegalStateException()}
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}
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fun testInOut() {
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In<String>().f("1");
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(null <!CAST_NEVER_SUCCEEDS!>as<!> In<<!REDUNDANT_PROJECTION!>in<!> String>).f("1")
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(null <!CAST_NEVER_SUCCEEDS!>as<!> In<*>).f(<!TYPE_MISMATCH!>"1"<!>) // Wrong Arg
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In<String>().f(1);
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(null <!CAST_NEVER_SUCCEEDS!>as<!> In<<!REDUNDANT_PROJECTION!>in<!> String>).f(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> In<*>).f(1);
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Out<Int>().f(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Out<<!REDUNDANT_PROJECTION!>out<!> Int>).f(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Out<*>).f(1)
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Out<Int>().f()
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Out<<!REDUNDANT_PROJECTION!>out<!> Int>).f()
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Out<*>).f()
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Inv<Int>().f(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<in Int>).f(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<out Int>).<!UNRESOLVED_REFERENCE!>f<!>(1) // !!
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<*>).<!UNRESOLVED_REFERENCE!>f<!>(1) // !!
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Inv<Int>().inf(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<in Int>).inf(1)
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<out Int>).<!UNRESOLVED_REFERENCE!>inf<!>(1) // !!
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<*>).<!UNRESOLVED_REFERENCE!>inf<!>(1) // !!
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Inv<Int>().outf()
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<!TYPE_MISMATCH!>(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<in Int>).outf()<!> : Int // Type mismatch
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<out Int>).outf()
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(null <!CAST_NEVER_SUCCEEDS!>as<!> Inv<*>).outf()
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Inv<Int>().outf(<!TOO_MANY_ARGUMENTS!>1<!>) // Wrong Arg
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} |