Source file src/internal/types/testdata/fixedbugs/issue48136.go

Documentation: internal/types/testdata/fixedbugs

     1  // Copyright 2021 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package p
     6  
     7  func f1[P interface{ *P }]() {}
     8  func f2[P interface{ func(P) }]() {}
     9  func f3[P, Q interface{ func(Q) P }]() {}
    10  func f4[P interface{ *Q }, Q interface{ func(P) }]() {}
    11  func f5[P interface{ func(P) }]() {}
    12  func f6[P interface { *Tree[P] }, Q any ]() {}
    13  
    14  func _() {
    15          f1 /* ERROR "cannot infer P" */ ()
    16          f2 /* ERROR "cannot infer P" */ ()
    17          f3 /* ERROR "cannot infer P" */ ()
    18          f4 /* ERROR "cannot infer P" */ ()
    19          f5 /* ERROR "cannot infer P" */ ()
    20          f6 /* ERROR "cannot infer P" */ ()
    21  }
    22  
    23  type Tree[P any] struct {
    24          left, right *Tree[P]
    25          data P
    26  }
    27  
    28  // test case from issue
    29  
    30  func foo[Src interface { func() Src }]() Src {
    31          return foo[Src]
    32  }
    33  
    34  func _() {
    35          foo /* ERROR "cannot infer Src" */ ()
    36  }
    37  

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