issue46749.go

     1  // errorcheck
     2  
     3  // Copyright 2021 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package p
     8  
     9  var s string
    10  var b bool
    11  var i int
    12  var iface interface{}
    13  
    14  var (
    15  	_ = "" + b   // ERROR "invalid operation.*mismatched types.*untyped string and bool"
    16  	_ = "" + i   // ERROR "invalid operation.*mismatched types.*untyped string and int"
    17  	_ = "" + nil // ERROR "invalid operation.*mismatched types.*untyped string and nil|(untyped nil)"
    18  )
    19  
    20  var (
    21  	_ = s + false // ERROR "invalid operation.*mismatched types.*string and untyped bool"
    22  	_ = s + 1     // ERROR "invalid operation.*mismatched types.*string and untyped int"
    23  	_ = s + nil   // ERROR "invalid operation.*mismatched types.*string and nil|(untyped nil)"
    24  )
    25  
    26  var (
    27  	_ = "" + false // ERROR "invalid operation.*mismatched types.*untyped string and untyped bool"
    28  	_ = "" + 1     // ERROR "invalid operation.*mismatched types.*untyped string and untyped int"
    29  )
    30  
    31  var (
    32  	_ = b + 1         // ERROR "invalid operation.*mismatched types.*bool and untyped int"
    33  	_ = i + false     // ERROR "invalid operation.*mismatched types.*int and untyped bool"
    34  	_ = iface + 1     // ERROR "invalid operation.*mismatched types.*interface *{} and int"
    35  	_ = iface + 1.0   // ERROR "invalid operation.*mismatched types.*interface *{} and float64"
    36  	_ = iface + false // ERROR "invalid operation.*mismatched types.*interface *{} and bool"
    37  )
    38
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