Bump required ruby version to 3.2

.github/dependabot.yml

@@ -18,9 +18,6 @@ updates:
           - "*"
   - package-ecosystem: 'bundler'
     directories:
-      - '/gemfiles/2.7'
-      - '/gemfiles/3.0'
-      - '/gemfiles/3.1'
       - '/gemfiles/3.2'
       - '/gemfiles/3.3'
       - '/gemfiles/3.4'

.github/workflows/main.yml

@@ -27,13 +27,13 @@ jobs:
   template:
     runs-on: ubuntu-latest
     env:
-      BUNDLE_GEMFILE: gemfiles/2.7/Gemfile
+      BUNDLE_GEMFILE: gemfiles/3.2/Gemfile
     steps:
     - uses: actions/checkout@v6
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: "2.7.0"
+        ruby-version: "3.2.0"
         bundler-cache: true
     - name: Generate templates
       run: bundle exec rake templates
@@ -270,9 +270,6 @@ jobs:
       fail-fast: false
       matrix:
         target:
-          - { ruby: "2.7", os: "ubuntu-latest", gemfile: "2.7" }
-          - { ruby: "3.0", os: "ubuntu-latest", gemfile: "3.0" }
-          - { ruby: "3.1", os: "ubuntu-latest", gemfile: "3.1" }
           - { ruby: "3.2", os: "ubuntu-latest", gemfile: "3.2" }
           - { ruby: "3.3", os: "ubuntu-latest", gemfile: "3.3" }
           - { ruby: "3.4", os: "ubuntu-latest", gemfile: "3.4" }
@@ -281,9 +278,6 @@ jobs:
           - { ruby: "jruby", os: "ubuntu-latest", gemfile: ".." }
           - { ruby: "truffleruby", os: "ubuntu-latest", gemfile: ".." }
 
-          - { ruby: "2.7", os: "macos-latest", gemfile: "2.7" }
-          - { ruby: "3.0", os: "macos-latest", gemfile: "3.0" }
-          - { ruby: "3.1", os: "macos-latest", gemfile: "3.1" }
           - { ruby: "3.2", os: "macos-latest", gemfile: "3.2" }
           - { ruby: "3.3", os: "macos-latest", gemfile: "3.3" }
           - { ruby: "3.4", os: "macos-latest", gemfile: "3.4" }
@@ -292,9 +286,6 @@ jobs:
           - { ruby: "jruby", os: "macos-latest", gemfile: ".." }
           - { ruby: "truffleruby", os: "macos-latest", gemfile: ".." }
 
-          - { ruby: "2.7", os: "windows-latest", gemfile: "2.7" }
-          - { ruby: "3.0", os: "windows-latest", gemfile: "3.0" }
-          - { ruby: "3.1", os: "windows-latest", gemfile: "3.1" }
           - { ruby: "3.2", os: "windows-latest", gemfile: "3.2" }
           - { ruby: "3.3", os: "windows-latest", gemfile: "3.3" }
           - { ruby: "3.4", os: "windows-latest", gemfile: "3.4" }

README.md

@@ -60,7 +60,7 @@ To compile the shared library, you will need:
 
 * C99 compiler
 * GNU make
-* Ruby 2.7.0 or later
+* Ruby 3.2.0 or later
 
 Once you have these dependencies, run:
 

bin/prism

@@ -83,7 +83,6 @@ module Prism
     # bin/prism bundle [...]
     def bundle(argv)
       [
-        ["3.1", ["3.1"]],
         ["3.2", ["3.2"]],
         ["3.3", ["3.3"]],
         ["3.4", ["3.4", "typecheck"]],

docs/releasing.md

@@ -47,7 +47,7 @@ bundle install
 * Update the version-specific lockfiles:
 
 ```sh
-for VERSION in "2.7" "3.0" "3.1" "3.2" "3.3" "3.4" "4.0"; do docker run -it --rm -v "$PWD":/usr/src/app -w /usr/src/app -e BUNDLE_GEMFILE="gemfiles/$VERSION/Gemfile" "ruby:$VERSION" bundle update; done
+for VERSION in "3.2" "3.3" "3.4" "4.0"; do docker run -it --rm -v "$PWD":/usr/src/app -w /usr/src/app -e BUNDLE_GEMFILE="gemfiles/$VERSION/Gemfile" "ruby:$VERSION" bundle update; done
 chruby ruby-4.1.0-dev && BUNDLE_GEMFILE=gemfiles/4.1/Gemfile bundle install
 ```
 

lib/prism.rb

@@ -108,8 +108,6 @@ def self.load(source, serialized, freeze = false)
   #    def self.parse_file_failure?: (String filepath,                   ?command_line: String, ?encoding: Encoding | false, ?freeze: bool, ?frozen_string_literal: bool, ?line: Integer, ?main_script: bool, ?partial_script: bool, ?scopes: Array[Array[Symbol]], ?version: String) -> bool
 end
 
-require_relative "prism/polyfill/byteindex"
-require_relative "prism/polyfill/warn"
 require_relative "prism/node"
 require_relative "prism/node_ext"
 require_relative "prism/parse_result"

prism.gemspec

@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
   spec.homepage = "https://github.com/ruby/prism"
   spec.license = "MIT"
 
-  spec.required_ruby_version = ">= 2.7.0"
+  spec.required_ruby_version = ">= 3.2.0"
 
   spec.require_paths = ["lib"]
   spec.files = [
@@ -88,10 +88,7 @@ Gem::Specification.new do |spec|
     "lib/prism/parse_result/newlines.rb",
     "lib/prism/pattern.rb",
     "lib/prism/polyfill/append_as_bytes.rb",
-    "lib/prism/polyfill/byteindex.rb",
     "lib/prism/polyfill/scan_byte.rb",
-    "lib/prism/polyfill/unpack1.rb",
-    "lib/prism/polyfill/warn.rb",
     "lib/prism/reflection.rb",
     "lib/prism/relocation.rb",
     "lib/prism/serialize.rb",

rakelib/test.rake

@@ -43,9 +43,6 @@ end
 # memcheck or debug tests.
 return if RUBY_ENGINE == "jruby" || RUBY_ENGINE == "truffleruby"
 
-# Don't bother trying to configure memcheck on old versions of Ruby.
-return if RUBY_VERSION < "3.0"
-
 # Only attempt to configure memcheck if the gem is installed.
 begin
   require "ruby_memcheck"

templates/lib/prism/serialize.rb.erb

@@ -2,7 +2,6 @@
 # rbs_inline: enabled
 
 require "stringio"
-require_relative "polyfill/unpack1"
 
 module Prism
   # A module responsible for deserializing parse results.

test/prism/encoding/regular_expression_encoding_test.rb

@@ -2,7 +2,6 @@
 
 return unless defined?(RubyVM::InstructionSequence)
 return if RubyVM::InstructionSequence.compile("").to_a[4][:parser] == :prism
-return if RUBY_VERSION < "3.2"
 
 require_relative "../test_helper"
 

test/prism/fixtures_test.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-return if RUBY_VERSION < "3.2.0"
-
 require_relative "test_helper"
 
 module Prism

test/prism/lex_test.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-return if !(RUBY_ENGINE == "ruby" && RUBY_VERSION >= "3.2.0")
-
 require_relative "test_helper"
 require "ripper"