24 lines
394 B
Text
24 lines
394 B
Text
#eval show Option String from do
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s!"{← some 1}"
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def f1 : Option Nat := do
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return (← some 1)
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def f2 : Option Nat := do
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let x ← some 1
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return none
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def f3 : Option String := do
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if let some x ← some 1 then
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none
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else
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none
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def f4 : Option String := do
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let mut x := none
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x ← some 1
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return x
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def f5 : Option String := do
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let (x, y) ← some (1, 5)
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return x
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