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flag: fix panic if flag value was not provided (#6478)

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spaceface777
2020-09-25 15:31:35 +02:00
committed by GitHub
parent ae48b709ed
commit aa1d5fcbdd
2 changed files with 12 additions and 2 deletions
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4
vlib/flag/flag.v
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@@ -113,13 +113,13 @@ fn (mut fs FlagParser) parse_value(longhand string, shorthand byte) []string {
}
if (arg.len == 2 && arg[0] == `-` && arg[1] == shorthand ) || arg == full {
if i+1 >= fs.args.len {
panic("Missing argument for '$longhand'")
return []
}
nextarg := fs.args[i+1]
if nextarg.len > 2 && nextarg[..2] == '--' {
//It could be end of input (--) or another argument (--abc).
//Both are invalid so die.
panic("Missing argument for '$longhand'")
return []
}
found_entries << fs.args[i+1]
to_delete << i