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added threading operator #3

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added threading operator #3

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4 changes: 4 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,10 @@ foo.inside { |v| v.upcase! } #=> Some("BAR")
for value in foo
puts value #=> bar
end

# Thread an option through multiple methods
Option(" 1 ").thread(:strip, :to_i, :next).get #=> 2
Option(" 1 ").thread(:strip, :to_i, :next).get_or_else { "else" } #=> else
```

## Build Status
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9 changes: 9 additions & 0 deletions lib/option.rb
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Expand Up @@ -45,6 +45,11 @@ def each(&blk)
nil
end

def thread(*funcs)
return self unless funcs.length > 0
Option(funcs.shift.to_proc.call(get)).thread(*funcs)
end

def or_nil
get
end
Expand Down Expand Up @@ -128,6 +133,10 @@ def or_nil
nil
end

def thread(*funcs)
self
end

def present?
false
end
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