issue28251.go

     1  // Copyright 2018 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  // This file contains test cases for various forms of
     6  // method receiver declarations, per the spec clarification
     7  // https://golang.org/cl/142757.
     8  
     9  package issue28251
    10  
    11  // test case from issue28251
    12  type T struct{}
    13  
    14  type T0 = *T
    15  
    16  func (T0) m() {}
    17  
    18  func _() { (&T{}).m() }
    19  
    20  // various alternative forms
    21  type (
    22          T1 = (((T)))
    23  )
    24  
    25  func ((*(T1))) m1() {}
    26  func _() { (T{}).m2() }
    27  func _() { (&T{}).m2() }
    28  
    29  type (
    30          T2 = (((T3)))
    31          T3 = T
    32  )
    33  
    34  func (T2) m2() {}
    35  func _() { (T{}).m2() }
    36  func _() { (&T{}).m2() }
    37  
    38  type (
    39          T4 = ((*(T5)))
    40          T5 = T
    41  )
    42  
    43  func (T4) m4() {}
    44  func _() { (T{}).m4 /* ERROR "cannot call pointer method m4 on T" */ () }
    45  func _() { (&T{}).m4() }
    46  
    47  type (
    48          T6 = (((T7)))
    49          T7 = (*(T8))
    50          T8 = T
    51  )
    52  
    53  func (T6) m6() {}
    54  func _() { (T{}).m6 /* ERROR "cannot call pointer method m6 on T" */ () }
    55  func _() { (&T{}).m6() }
    56  
    57  type (
    58          T9 = *T10
    59          T10 = *T11
    60          T11 = T
    61  )
    62  
    63  func (T9 /* ERRORx `invalid receiver type (\*\*T|T9)` */ ) m9() {}
    64  func _() { (T{}).m9 /* ERROR "has no field or method m9" */ () }
    65  func _() { (&T{}).m9 /* ERROR "has no field or method m9" */ () }
    66
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