lookup1.go

     1  // Copyright 2024 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 lookup
     6  
     7  import "math/big" // provides big.Float struct with unexported fields and methods
     8  
     9  func _() {
    10  	var s struct {
    11  		x, aBc int
    12  	}
    13  	_ = s.x
    14  	_ = s /* ERROR "invalid operation: cannot call non-function s.x (variable of type int)" */ .x()
    15  	_ = s.X // ERROR "s.X undefined (type struct{x int; aBc int} has no field or method X, but does have field x)"
    16  	_ = s.X /* ERROR "s.X undefined (type struct{x int; aBc int} has no field or method X, but does have field x)" */ ()
    17  
    18  	_ = s.aBc
    19  	_ = s.abc // ERROR "s.abc undefined (type struct{x int; aBc int} has no field or method abc, but does have field aBc)"
    20  	_ = s.ABC // ERROR "s.ABC undefined (type struct{x int; aBc int} has no field or method ABC, but does have field aBc)"
    21  }
    22  
    23  func _() {
    24  	type S struct {
    25  		x int
    26  	}
    27  	var s S
    28  	_ = s.x
    29  	_ = s /* ERROR "invalid operation: cannot call non-function s.x (variable of type int)" */ .x()
    30  	_ = s.X // ERROR "s.X undefined (type S has no field or method X, but does have field x)"
    31  	_ = s.X /* ERROR "s.X undefined (type S has no field or method X, but does have field x)" */ ()
    32  }
    33  
    34  type S struct {
    35  	x int
    36  }
    37  
    38  func (S) m()   {}
    39  func (S) aBc() {}
    40  
    41  func _() {
    42  	var s S
    43  	_ = s.m
    44  	s.m()
    45  	_ = s.M // ERROR "s.M undefined (type S has no field or method M, but does have method m)"
    46  	s.M /* ERROR "s.M undefined (type S has no field or method M, but does have method m)" */ ()
    47  
    48  	_ = s.aBc
    49  	_ = s.abc // ERROR "s.abc undefined (type S has no field or method abc, but does have method aBc)"
    50  	_ = s.ABC // ERROR "s.ABC undefined (type S has no field or method ABC, but does have method aBc)"
    51  }
    52  
    53  func _() {
    54  	type P *S
    55  	var s P
    56  	_ = s.m // ERROR "s.m undefined (type P has no field or method m)"
    57  	_ = s.M // ERROR "s.M undefined (type P has no field or method M)"
    58  	_ = s.x
    59  	_ = s.X // ERROR "s.X undefined (type P has no field or method X, but does have field x)"
    60  }
    61  
    62  func _() {
    63  	var x big.Float
    64  	_ = x.neg // ERROR "x.neg undefined (type big.Float has no field or method neg, but does have method Neg)"
    65  	_ = x.nEg // ERROR "x.nEg undefined (type big.Float has no field or method nEg)"
    66  	_ = x.Neg
    67  	_ = x.NEg // ERROR "x.NEg undefined (type big.Float has no field or method NEg, but does have method Neg)"
    68  
    69  	_ = x.form // ERROR "x.form undefined (cannot refer to unexported field form)"
    70  	_ = x.fOrm // ERROR "x.fOrm undefined (type big.Float has no field or method fOrm)"
    71  	_ = x.Form // ERROR "x.Form undefined (type big.Float has no field or method Form, but does have unexported field form)"
    72  	_ = x.FOrm // ERROR "x.FOrm undefined (type big.Float has no field or method FOrm)"
    73  }
    74
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