Simplify define-pretty macro #63
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This commit changes the `pretty` syntax parameter to an ordinary function that calls whatever function is in `current-pretty`. This removes the need for the `#:default` keyword in `define-pretty`, and as a result the `#:let` keyword isn't needed anymore either. This makes `define-pretty` macro uses a bit more readable, since they can now use ordinary default function arguments and ordinary local definitions.
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Oh, I think I did it that way to break the cycle, because https://github.com/sorawee/fmt/blob/master/core.rkt#L136 The fact that your PR passes the CI is puzzling to me though. Maybe things work and there's no need to break the cycle after all? |
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Yeah the cycle is fine. Indirection through the box is enough to break it. Though I am surprised it uses a box at all instead of a parameter. |
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I recall I benchmarked at some point and found |
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Ah, that makes sense. Parameters have the overhead of thread cells to worry about. |
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This pull request changes the
prettysyntax parameter to an ordinary function that calls whatever function is incurrent-pretty. This removes the need for the#:defaultkeyword indefine-pretty, and as a result the#:letkeyword isn't needed anymore either. This makesdefine-prettymacro uses a bit more readable since they can now use ordinary default function arguments and local definitions.