Opal v1.4.1 Release Notes

Release Date: 2022-01-12 // 5 months ago
  • ๐Ÿ”„ Changed

    • PromiseV2 is now declared a stable interface!

    ๐Ÿ›  Fixed

    • Args named with JS reserved words weren't always renamed when zsuper was involved (#2385)

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Previous changes from v1.4.0

  • โž• Added

    • Implement chomp: option for String#each_line and #lines (#2355)
    • ๐Ÿ’Ž Ruby 3.1 support and some older Ruby features we missed (#2347)
      • Use parser in 3.1 mode to support new language-level features like hashes/kwargs value omission, the pin operator for pattern matching
      • Array#intersect?
      • String#strip and String#lstrip to also remove NUL bytes
      • Integer.try_convert
      • public, private, protected, module_function now return their arguments
      • Class#descendants, Class#subclasses
      • (<=1.8) Kernel#local_variables
      • (<=2.3) Set local variables for regexp named captures (/(?<b>a)/ =~ 'a' => b = 'a')
      • Remove deprecated NIL, TRUE, FALSE constants
      • String#unpack and String#unpack1 to support an offset: kwarg
      • MatchData#match, MatchData#match_length
      • Enumerable modernization
      • Enumerable#tally to support an optional hash accumulator
      • Enumerable#each_{cons,slice} to return self
      • Enumerable#compact
      • Refinement becomes its own class now
      • Struct#keyword_init?
      • (pre-3.1) Large Enumerator rework
      • Introduce Enumerator::ArithmeticSequence
      • Introduce Enumerator::Chain
      • Introduce Enumerator#+ to create Enumerator::Chains
      • Enumerator#{rewind,peek,peek_values,next,next_values}
      • Improve corelib support for beginless/endless ranges and ArithmeticSequences
        • String#[], Array#[], Array#[]=, Array#fill, Array#values_at
      • Range#step and Numeric#step return an ArithmeticSequence when Numeric values are in play
      • Introduce Range#%
      • Enumerator::Yielder#to_proc
      • Fix #2367
      • (2.7) UnboundMethod#bind_call
      • (Opal) {Kernel,BasicObject}#{inspect,p,pp,method_missing} may work with JS native values now, also they now correctly report cycles
      • Enumerable#sum uses Kahan's summation algorithm to reduce error with floating point values
      • File.dirname supports a new level argument
    • ๐Ÿ“œ Vendor in optparse and shellwords (#2326)
    • ๐Ÿ‘ Preliminary support for compiling the whole bin/opal with Opal (#2326)

    ๐Ÿ›  Fixed

    • ๐Ÿ›  Fix coertion for Array#drop (#2371)
    • ๐Ÿ›  Fix coertion for File.absolute_path (#2372)
    • ๐Ÿ›  Fix some IO#puts edge cases (no args, empty array, nested array, โ€ฆ) (#2372)
    • Preserve UNC path prefix on File.join (#2366)
    • Methods on Kernel, BasicObject, Boolean will never return boxed values anymore (#2293)
      • false.tap{} will now correctly return a JS value of false, not Object(false)
    • ๐Ÿ“œ opal-parser doesn't break on <<~END strings anymore (#2364)
    • ๐Ÿ›  Fix error reporting at the early stage of loading (#2326)

    ๐Ÿ”„ Changed

    • โšก๏ธ Various outputted code size optimizations - 19% improvement for minified unmangled AsciiDoctor bundle - see: https://opalrb.com/blog/2021/11/24/optimizing-opal-output-for-size/ (#2356)
    • ๐Ÿ‘€ Second round of code size optimizations - 3% improvement for AsciiDoctor bundle on top of the first round - 23% total - see: https://github.com/opal/opal/pull/2365/commits (#2365)
      • The calls to ==, != and === changed their semantics slightly: it's impossible to monkey patch those calls for String and Number, but on other classes they can now return nil and it will be handled correctly
      • The calls to ! changed their semantics slightly: it's impossible to monkey patch this call for Boolean or NilClass.
    • ๐Ÿ”จ Refactored the structure of the internal stdlib/nodejs folder (#2374)
      • Added nodejs/base with just I/O, exit, and ARGV management
      • Moved Process::Status to corelib
      • Fixed requires to be more robust

    โœ‚ Removed

    • โœ‚ Removed nodejs/irb from stdlib as it's been broken for some time (#2374)
    • โœ‚ Removed Kernel#node_require from nodejs/kernel as it's been deprecated for a long time (#2374)

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