modernc.org/gc@v1.0.1-0.20240304020402-f0dba7c97c2b/testdata/errchk/test/fixedbugs/issue4468.go (about)

     1  // errorcheck
     2  
     3  // Copyright 2012 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  // Issue 4468: go/defer calls may not be parenthesized.
     8  
     9  package p
    10  
    11  type T int
    12  
    13  func (t *T) F() T {
    14  	return *t
    15  }
    16  
    17  type S struct {
    18  	t T
    19  }
    20  
    21  func F() {
    22  	go F            // ERROR "must be function call"
    23  	defer F         // ERROR "must be function call"
    24  	go (F)		// ERROR "must be function call|must not be parenthesized"
    25  	defer (F)	// ERROR "must be function call|must not be parenthesized"
    26  	go (F())	// ERROR "must be function call|must not be parenthesized"
    27  	defer (F())	// ERROR "must be function call|must not be parenthesized"
    28  	var s S
    29  	(&s.t).F()
    30  	go (&s.t).F()
    31  	defer (&s.t).F()
    32  }