Victor Petukhov
260683c20e
Introduce seven stages: 1) Analyze postponed arguments with fixed parameter types 2) Collect parameter types from constraints and lambda parameters' declaration 3) Fix not postponed variables for parameter types of all postponed arguments 4) Create atoms with revised expected types if needed 5) Analyze the first ready postponed argument and rerun stages if it has been analyzed 6) Force fixation remaining type variables: fix if possible or report not enough information 7) Force analysis remaining not analyzed postponed arguments and rerun stages if there are ^KT-37952 Fixed ^KT-32156 Fixed ^KT-37249 Fixed ^KT-37341 Fixed
58 lines
2.8 KiB
Kotlin
Vendored
58 lines
2.8 KiB
Kotlin
Vendored
// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_ANONYMOUS_PARAMETER
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import kotlin.reflect.*
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fun <T>id(x: T) = x
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fun <T> select(vararg x: T) = x[0]
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fun foo(x: Int) {}
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fun foo2(x: Number) {}
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fun foo3(x: Int) {}
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fun foo3(x: Number) {}
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interface A
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interface B
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fun foo4(x: A) {}
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fun foo4(x: B) {}
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interface C: A, B
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fun foo5(x: A) {}
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fun foo5(x: B) {}
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fun foo5(x: C) {}
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fun <T: (Float) -> Unit> selectNumber(vararg x: T) = x[0]
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fun foo6(x: Int) {}
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fun foo6(x: Float) {}
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fun foo6(x: Number) {}
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fun main() {
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select(::foo, { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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select(id(::foo), { x: Number -> }, { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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val x1 = select(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit>")!>id(::foo)<!>, <!DEBUG_INFO_EXPRESSION_TYPE("(kotlin.Number) -> kotlin.Number")!>id { x: Number -> <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Number")!>x<!> }<!>)
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<!DEBUG_INFO_EXPRESSION_TYPE("(kotlin.Int) -> kotlin.Any")!>x1<!>
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val x11 = select(id(::foo), id { x: Number -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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<!DEBUG_INFO_EXPRESSION_TYPE("(kotlin.Int) -> kotlin.Any")!>x11<!>
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select(id(::foo2), id { x: Int -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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select(id(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit>")!>::foo3<!>), id { x: Int -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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select(id(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit>")!>::foo3<!>), id { x: Number -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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select(id(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<kotlin.Int, kotlin.Unit>")!>::foo3<!>), id { x: Number -> }, id { x: Int -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>it<!> })
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select(id(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<A, kotlin.Unit>")!>::foo4<!>), id { x: A -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("A")!>it<!> })
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select(id(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<B, kotlin.Unit>")!>::foo4<!>), id { x: B -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("B")!>it<!> })
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// Expected ambiguity
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select(id(::<!CALLABLE_REFERENCE_RESOLUTION_AMBIGUITY!>foo4<!>), id { x: A -> }, id { x: B -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("{A & B}")!>it<!> })
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select(id(::foo5), id { x: A -> }, id { x: B -> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("C")!>it<!> })
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val x2: (Int) -> Unit = selectNumber(id(<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.reflect.KFunction1<kotlin.Number, kotlin.Unit>")!>::foo6<!>), id { x -> <!DEBUG_INFO_EXPRESSION_TYPE("{Comparable<*> & Number}")!>x<!> }, id { <!DEBUG_INFO_EXPRESSION_TYPE("{Comparable<*> & Number}")!>it<!> })
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}
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