Support while loops in .xds - #4
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StarsMmd
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Sep 26, 2020
| lines[last] = lines[last].replacingOccurrences(of: "\n", with: "") + " " + keyword + " {\n" | ||
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| // Pulled out in converting from a loop to a single condition + block | ||
| // Can reuse the below code when more complex if/else blocks are supported |
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I think we can create a commented out ifElse case for use in future which contains the old code with the loop through each block. Then here we can clean this code up by removing the references to the loop counter since we know it will always be the 0 case for a singular if block.
StarsMmd
reviewed
Sep 26, 2020
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| // while loop | ||
| if tokens[0] == "while" { | ||
| // cheat parsing by transforming to an `if` and inserting the additional location and jump |
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ifStatementtake only a single condition & body; more complex branching structures (i.e. if/else) can have their own casesevalTokensXDSreturn an array to simplify while loop compilation as [.location, .ifStatement]looks like a lot of the guts (printing, instruction count, etc.) were there already from work you did before; I really just had to implement the patterns for compilation and decompilation
let me know if this looks reasonable to you