issue12839.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  // Package issue12839 is a go/doc test to test association of a function
     6  // that returns multiple types.
     7  // See golang.org/issue/12839.
     8  // (See also golang.org/issue/27928.)
     9  package issue12839
    10  
    11  import "p"
    12  
    13  type T1 struct{}
    14  
    15  type T2 struct{}
    16  
    17  func (t T1) hello() string {
    18  	return "hello"
    19  }
    20  
    21  // F1 should not be associated with T1
    22  func F1() (*T1, *T2) {
    23  	return &T1{}, &T2{}
    24  }
    25  
    26  // F2 should be associated with T1
    27  func F2() (a, b, c T1) {
    28  	return T1{}, T1{}, T1{}
    29  }
    30  
    31  // F3 should be associated with T1 because b.T3 is from a different package
    32  func F3() (a T1, b p.T3) {
    33  	return T1{}, p.T3{}
    34  }
    35  
    36  // F4 should not be associated with a type (same as F1)
    37  func F4() (a T1, b T2) {
    38  	return T1{}, T2{}
    39  }
    40  
    41  // F5 should be associated with T1.
    42  func F5() (T1, error) {
    43  	return T1{}, nil
    44  }
    45  
    46  // F6 should be associated with T1.
    47  func F6() (*T1, error) {
    48  	return &T1{}, nil
    49  }
    50  
    51  // F7 should be associated with T1.
    52  func F7() (T1, string) {
    53  	return T1{}, nil
    54  }
    55  
    56  // F8 should be associated with T1.
    57  func F8() (int, T1, string) {
    58  	return 0, T1{}, nil
    59  }
    60  
    61  // F9 should not be associated with T1.
    62  func F9() (int, T1, T2) {
    63  	return 0, T1{}, T2{}
    64  }
    65  
    66  // F10 should not be associated with T1.
    67  func F10() (T1, T2, error) {
    68  	return T1{}, T2{}, nil
    69  }
    70
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