Source file test/fixedbugs/issue28926.go

     1  // errorcheck
     2  
     3  // Copyright 2018 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 main
     8  
     9  type Stringer interface {
    10  	String() string
    11  }
    12  
    13  func main() {
    14  	var e interface{}
    15  	switch e := e.(type) {
    16  	case G: // ERROR "undefined: G|undefined type .*G"
    17  		e.M() // ok: this error should be ignored because the case failed its typecheck
    18  	case E: // ERROR "undefined: E|undefined type .*E"
    19  		e.D() // ok: this error should be ignored because the case failed its typecheck
    20  	case Stringer:
    21  		// ok: this error should not be ignored to prove that passing legs aren't left out
    22  		_ = e.(T) // ERROR "undefined: T|undefined type .*T"
    23  	}
    24  }
    25  

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