Source file test/initexp.go

     1  // errorcheck -t 10
     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  // The init cycle diagnosis used to take exponential time
    10  // to traverse the call graph paths. This test case takes
    11  // at least two minutes on a modern laptop with the bug
    12  // and runs in a fraction of a second without it.
    13  // 10 seconds (-t 10 above) should be plenty if the code is working.
    14  
    15  var x = f() + z() // ERROR "initialization loop"
    16  
    17  func f() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    18  func z() int { return x }
    19  
    20  func a1() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    21  func a2() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    22  func a3() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    23  func a4() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    24  func a5() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    25  func a6() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    26  func a7() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    27  func a8() int { return b1() + b2() + b3() + b4() + b5() + b6() + b7() }
    28  
    29  func b1() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    30  func b2() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    31  func b3() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    32  func b4() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    33  func b5() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    34  func b6() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    35  func b7() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    36  func b8() int { return a1() + a2() + a3() + a4() + a5() + a6() + a7() }
    37  

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