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checker: warn when using goto outside of unsafe (#8741)

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This commit is contained in:
Nick Treleaven
2021-02-15 13:48:24 +00:00
committed by GitHub
parent 6781f732f4
commit 629d43caf5
6 changed files with 39 additions and 32 deletions
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27
vlib/flag/flag.v
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@@ -362,22 +362,21 @@ pub fn (fs FlagParser) usage() string {
if positive_min_arg || positive_max_arg || no_arguments {
if no_arguments {
use += 'This application does not expect any arguments\n\n'
goto end_of_arguments_handling
} else {
mut s := []string{}
if positive_min_arg {
s << 'at least $fs.min_free_args'
}
if positive_max_arg {
s << 'at most $fs.max_free_args'
}
if positive_min_arg && positive_max_arg && fs.min_free_args == fs.max_free_args {
s = ['exactly $fs.min_free_args']
}
sargs := s.join(' and ')
use += 'The arguments should be $sargs in number.\n\n'
}
mut s := []string{}
if positive_min_arg {
s << 'at least $fs.min_free_args'
}
if positive_max_arg {
s << 'at most $fs.max_free_args'
}
if positive_min_arg && positive_max_arg && fs.min_free_args == fs.max_free_args {
s = ['exactly $fs.min_free_args']
}
sargs := s.join(' and ')
use += 'The arguments should be $sargs in number.\n\n'
}
end_of_arguments_handling:
if fs.flags.len > 0 {
use += 'Options:\n'
for f in fs.flags {