github.com/karrick/go@v0.0.0-20170817181416-d5b0ec858b37/test/typecheckloop.go (about)

     1  // errorcheck
     2  
     3  // Copyright 2015 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  // Verify that constant definition loops are caught during
     8  // typechecking and that the errors print correctly.
     9  
    10  package main
    11  
    12  const A = 1 + B // ERROR "constant definition loop\n.*A uses B\n.*B uses C\n.*C uses A"
    13  const B = C - 1 // ERROR "constant definition loop\n.*B uses C\n.*C uses B"
    14  const C = A + B + 1