d7fda4e60b
Now the Savi lexer can tokenize string interpolation inside strings, which is a new feature added to Savi since the last time this lexer was updated.
29 lines
828 B
Text
29 lines
828 B
Text
:actor Main
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:new (env)
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Spec.Process.run(env, [
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Spec.Run(AdditionSpec).new(env)
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])
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:class AdditionSpec
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:is Spec
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:const describes: "Addition"
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:: Return the number 2 (written in hex, just for fun).
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:const _two U64'val: 0x02
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:it "adds two twos"
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assert: @_two + '\x02' == 4
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:: Raise an error if the argument is positive.
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:fun non add_overflow!(a U64'val, b U64'val): a +! b
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:it "can error on overflow"
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integers Array(U64)'val = [99, 100, 101]
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// Check addition overflow for various pairs of addends.
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assert error: add_overflow!(U64.max_value, 1)
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assert no_error: add_overflow!(U64.max_value, 0)
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assert no_error: add_overflow!(integers[0]!, 1)
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// Print a bit of extra information using string interpolation.
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@env.out.print("The first integer is \(integers[0]!)")
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