Split the PrettyPrint class into two pieces. #759
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This change breaks up the PrettyPrint class into one piece that is responsible for tracking the state of the pretty printing algorithm - processing the tokens, tracking the break stack, comma delimited region stack, etc.; and another piece that is responsible for assembling the output and tracking the state of the output - current line, column position, and indentation.
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I did this as a learning exercise, to separate out the state that was part of the algorithm vs. the state that was part of the output stream. To me it makes things a bit easier to grok, interested in your thoughts on it. |
allevato
reviewed
Jun 26, 2024
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Interesting idea! I think this looks really good; the algorithm has gotten more complex over time as we've needed to add new features to the original, and I like that this moves the much of the "number fudging" (i.e., direct math operations) down to a lower layer and making the core algorithm read a bit more semantically.
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| import Foundation | ||
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| struct PrettyPrintBuffer { |
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Please add a brief doc comment for this type and for the stored properties below.
allevato
approved these changes
Jun 27, 2024
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This change breaks up the PrettyPrint class into one piece that is responsible for tracking the state of the pretty printing algorithm - processing the tokens, tracking the break stack, comma delimited region stack, etc.; and another piece that is responsible for assembling the output and tracking the state of the output - current line, column position, and indentation.