Remove support for ruby-3.0

Author: mbj

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3]
+        ruby: [ruby-3.1, ruby-3.2, ruby-3.3]
         os: [ubuntu-latest]
     steps:
     - uses: actions/checkout@v4
@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3]
+        ruby: [ruby-3.1, ruby-3.2, ruby-3.3]
         os: [ubuntu-latest]
     steps:
     - uses: actions/checkout@v4
@@ -53,7 +53,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3]
+        ruby: [ruby-3.1, ruby-3.2, ruby-3.3]
         os: [ubuntu-latest]
     steps:
     - uses: actions/checkout@v4
@@ -69,7 +69,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3]
+        ruby: [ruby-3.1, ruby-3.2, ruby-3.3]
         os: [ubuntu-latest]
     steps:
     - uses: actions/checkout@v4
@@ -85,7 +85,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3]
+        ruby: [ruby-3.1, ruby-3.2, ruby-3.3]
         os: [ubuntu-latest]
     steps:
     - uses: actions/checkout@v4

Changelog.md

@@ -1,3 +1,9 @@
+# v0.6.14 2024-06-10
+
+[#369](https://github.com/mbj/unparser/pull/369)
+
+* Remove support for ruby-3.0, its EOL.
+
 # v0.6.13 2024-02-01
 
 [#361](https://github.com/mbj/unparser/pull/361)

README.md

@@ -10,7 +10,7 @@ The following constraints apply:
 
 * No support for macruby extensions
 * Only support for the [modern AST](https://github.com/whitequark/parser/#usage) format
-* Only support for Ruby >= 3.0
+* Only support for Ruby >= 3.1
 
 Notable Users:
 

lib/unparser/emitter/match_pattern.rb

@@ -9,20 +9,11 @@ class MatchPattern < self
 
       children :target, :pattern
 
-      # Modern ast format emits `match_pattern`
-      # node on single line pre 3.0, but 3.0+ uses `match_pattern_p`
-      SYMBOL =
-        if RUBY_VERSION < '3.0'
-          ' in '
-        else
-          ' => '
-        end
-
     private
 
       def dispatch
         visit(target)
-        write(SYMBOL)
+        write(' => ')
         visit(pattern)
       end
     end # MatchPattern

scripts/devloop.sh

@@ -1,5 +1,5 @@
 while inotifywait lib/**/*.rb test/**/*.rb spec/**/*.rb Gemfile unparser.gemspec; do
-  bundle exec rspec spec/unit -fd --fail-fast --order default \
+  bundle exec rspec spec/unit -fd --fail-fast --order defined \
     && bundle exec ./bin/parser-round-trip-test \
     && bundle exec mutant run --zombie --since HEAD~1 --fail-fast -- 'Unparser*' \
     && bundle exec rubocop

spec/unit/unparser_spec.rb

@@ -417,14 +417,6 @@ def noop
         )
       end
 
-      if RUBY_VERSION < '3.0.'
-        excludes.concat(
-          %w[
-            test/corpus/literal/since/30.rb
-          ]
-        )
-      end
-
       excludes.flat_map { |file| ['--ignore', file] }
     end
 

test/corpus/literal/lambda.rb

@@ -11,3 +11,6 @@
 }
 ->(a, b; c) {
 }
+-> {
+  _1 + _2
+}

test/corpus/literal/pattern.rb

@@ -39,3 +39,7 @@
 else
 end
 1 in [a]
+1 => [a]
+1 => [*]
+1 in [*, 42, *]
+1 in [*, a, *foo]

test/corpus/literal/range.rb

@@ -2,3 +2,4 @@
 1..2
 (1...)
 1...2
+(..1)

test/corpus/literal/since/27.rb

@@ -23,7 +23,7 @@ Gem::Specification.new do |gem|
 
   gem.metadata['rubygems_mfa_required'] = 'true'
 
-  gem.required_ruby_version = '>= 3.0'
+  gem.required_ruby_version = '>= 3.1'
 
   gem.add_dependency('diff-lcs', '~> 1.3')
   gem.add_dependency('parser',   '>= 3.3.0')