blob: c71cb1bd082ecb2b4e82d1482b813e9e521ee7f6 [file] [log] [blame]
// errorcheck
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Issue 3890: missing detection of init loop involving
// method calls in function bodies.
package flag
var commandLine = NewFlagSet() // ERROR "loop|depends upon itself"
type FlagSet struct {
}
func (f *FlagSet) failf(format string, a ...interface{}) {
f.usage()
}
func (f *FlagSet) usage() {
if f == commandLine {
panic(3)
}
}
func NewFlagSet() *FlagSet {
f := &FlagSet{}
f.setErrorHandling(true)
return f
}
func (f *FlagSet) setErrorHandling(b bool) {
f.failf("DIE")
}