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@elia elia released this 26 Oct 09:22
· 86 commits to master since this release
v1.8.0
2430f2b

Highlights

Hash is now bridged to JavaScript Map

This change brings a lot of benefits, but also some incompatibilities. The main benefit is that Hash now is both more performant and relies on native JavaScript capabilities.
This improves interoperability with JavaScript. As a downside, applications reaching for internal Hash data structures will need to be updated.

Interacting with Hash from JavaScript is easier than ever:

hash = `new Map([['a', 1], ['b', 2]])`
hash # => {a: 1, b: 2}
`console.log(hash)` # => Map(2) {"a" => 1, "b" => 2}
`hash.get('a')` # => 1
`hash.set('c', 3)`
hash # => {a: 1, b: 2, c: 3}
hash.keys # => ["a", "b", "c"]
hash.values # => [1, 2, 3]

Performance improvements

This release brings a lot of performance improvements, our tests on Asciidoctor show a 25% improvement in performance, but we've seen up to 66% performance improvement on some applications.

Changelog

Deprecated

  • Deprecate using x-string to access JavaScript without an explicit magic-comment (#2543)

Compatibility

  • Add a magic-comment that will disable x-string compilation to JavaScript (#2543)
  • Pass value in PromiseV2#always just like PromiseV1#always does it (#2579)
  • #hash now returns integers (#2582)
  • Improve Range#include?/member?/cover?/=== (#2598)
  • Make Module#define_method more compatible with CRuby (#2593)
  • Hash#clone must freeze clone if original is frozen, but Hash#dup must not (#2603)

Fixed

  • Fix Kernel#Float with exception: option (#2532)
  • Fix Kernel#Integer with exception: option (#2531)
  • Fix String#split with limit and capturing regexp (#2544)
  • Fix switch with Object-wrapped values (#2542)
  • Fix non-direct subclasses of bridged classes not calling the original constructor (#2546)
  • Regexp.escape: Cast to String or drop exception (#2552)
  • Propagate removal of method from included/prepended modules (#2553)
  • Restore nodejs/yaml functionality (#2551)
  • Fix sine Range#size edge cases (#2541)
  • Use a Map instead of a POJO for the jsid_cache (#2584)
  • Fix String#object_id, String#__id__, String#hash to match CRuby's behavior (#2576)
  • Lowercase response headers in SimpleServer for rack 3.0 compatibility (#2578)
  • Fix Module#clone and Module#dup to properly copy methods (#2572)
  • Chrome runner fix: support code that contains </script> (#2581)
  • Do not skip $truthy when left hand side of a comparison is self (#2596)
  • Unexpected return/break should raise LocalJumpError (#2591)

Added

  • SourceMap support for Kernel#eval (#2534)
  • Add CGI::Util#escapeURIComponent and CGI::Util#unescapeURIComponent (#2566)
  • CGI::Util implement additional methods (#2601)

Changed

  • Change compilation of Regexp nodes that may contain advanced features, so if invalid that they would raise at runtime, not parse-time (#2548)
  • Hash is now bridged to JavaScript Map and support for non-symbol keys in keyword arguments (#2568)

Documentation

  • Bridging documentation (#2541)
  • Fix Typo in Running tests Section of README.md File (#2580)

Performance

  • Improve performance of Array#intersect? and #intersection (#2533)
  • Proc#call: Refactor for performance (#2541)
  • Opal.stub_for: optimize (#2541)
  • Hash: Optimize #to_a (#2541)
  • Array: Optimize #collect/#map (#2541)
  • Optimize argument slicing in runtime for performance (#2555)
  • Closure: Generate a JavaScript object, not an Error, gain up to 15% on Asciidoctor (#2556)
  • Optimize String#split and String#start_with (#2560)
  • Compute $@ dynamically (#2592)
  • Optimize the $prop helper (#2597)
  • Improve Array.push() performance when pushing many items (#2565)
  • Optimize Opal.instance_methods (#2600)

Internal

  • Update rubocop (#2535)
  • Match3Node Cleanup (#2541)
  • IFlipFlop/EFlipFlop: Refactor for readability (#2541)
  • ForRewriter: Refactor for readability (#2541)