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nouritsu avatar nouritsu commented on June 11, 2024

Note that collect_tuple is from itertools and it allows you to collect an iterator into a tuple.

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nouritsu avatar nouritsu commented on June 11, 2024

Settled for the solution -

choice(vec![
        // IO
        text::keyword("OUTPUT"),
        text::keyword("INPUT"),
        text::keyword("OPENFILE"),
        text::keyword("CLOSEFILE"),
        text::keyword("READFILE"),
        text::keyword("WRITEFILE"),
        text::keyword("SEEK"),
        text::keyword("GETRECORD"),
        text::keyword("PUTRECORD"),
        text::keyword("READ"),
        text::keyword("WRITE"),
        text::keyword("APPEND"),
        text::keyword("RANDOM"),
        // Types
        text::keyword("INTEGER"),
        text::keyword("REAL"),
        text::keyword("BOOLEAN"),
        text::keyword("CHAR"),
        text::keyword("STRING"),
        text::keyword("DATE"),
        text::keyword("ARRAY"),
        text::keyword("TYPE"),
        text::keyword("ENDTYPE"),
        // Selection
        text::keyword("IF"),
        text::keyword("THEN"),
        text::keyword("ELSE"),
        text::keyword("ENDIF"),
        text::keyword("CASE"),
        text::keyword("OF"),
        text::keyword("OTHERWISE"),
        text::keyword("ENDCASE"),
        // Loops
        text::keyword("FOR"),
        text::keyword("TO"),
        text::keyword("STEP"),
        text::keyword("NEXT"),
        text::keyword("ENDFOR"),
        text::keyword("REPEAT"),
        text::keyword("UNTIL"),
        text::keyword("WHILE"),
        text::keyword("DO"),
        text::keyword("ENDWHILE"),
        // Declaration
        text::keyword("DECLARE"),
        text::keyword("CONSTANT"),
        // Operators
        text::keyword("MOD"),
        text::keyword("DIV"),
        text::keyword("AND"),
        text::keyword("OR"),
        text::keyword("NOT"),
        // Functions or Procedures
        text::keyword("PROCEDURE"),
        text::keyword("ENDPROCEDURE"),
        text::keyword("CALL"),
        text::keyword("FUNCTION"),
        text::keyword("RETURNS"),
        text::keyword("BYREF"),
        text::keyword("ENDFUNCTION"),
    ])
    .ignored()

This is not optimal since I'm repeating my self with the text::keyword. Please reply if a better solution comes to mind

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CraftSpider avatar CraftSpider commented on June 11, 2024

I suspect this may be because choice is only implemented on tuples up to length 26 - if you use a normal collect into a Vec I imagine that should work in your original example.

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nouritsu avatar nouritsu commented on June 11, 2024

Type inference doesn't work well when collecting into a Vec. Also I'm having cargo check performance issues while working with chumsky. Is this common?

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wackbyte avatar wackbyte commented on June 11, 2024
  1. You should be able to help type inference out with something like .collect::<Vec<_>>().
  2. Because combinators can end up creating very large types, complex parsers complicate trait solving greatly for the compiler, inflating compile times. This can be reduced by interspersing dynamic dispatch at different points in your parser via the .boxed() combinator (#415 is a good example of this).

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nouritsu avatar nouritsu commented on June 11, 2024

I see, thank you for the advice!

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zesterer avatar zesterer commented on June 11, 2024

There's also a section in the guide for 1.0 about reducing compilation times, if it helps!

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