Upgrade supported Ruby version to 3.1 (#73)

Signed-off-by: david942j <david942j@gmail.com>

.github/workflows/ruby.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu, macos, windows]
-        ruby-version: ['2.6', '2.7', head]
+        ruby-version: ['3.1', '3.2', '3.3', head]
 
     steps:
     - uses: actions/checkout@v2

.rubocop.yml

@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.1
   DisplayCopNames: true
   DisplayStyleGuide: true
 

elftools.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.files       = Dir['lib/**/*.rb'] + %w[README.md]
   s.homepage    = 'https://github.com/david942j/rbelftools'
   s.license     = 'MIT'
-  s.required_ruby_version = '>= 2.6'
+  s.required_ruby_version = '>= 3.1'
 
   s.add_runtime_dependency 'bindata', '~> 2'
 

lib/elftools/dynamic.rb

@@ -96,7 +96,7 @@ def tag_at(n)
       @tag_at_map ||= {}
       return @tag_at_map[n] if @tag_at_map[n]
 
-      dyn = Structs::ELF_Dyn.new(endian: endian)
+      dyn = Structs::ELF_Dyn.new(endian:)
       dyn.elf_class = header.elf_class
       stream.pos = tag_start + n * dyn.num_bytes
       dyn.offset = stream.pos

lib/elftools/elf_file.rb

@@ -36,7 +36,7 @@ def header
       return @header if defined?(@header)
 
       stream.pos = 0
-      @header = Structs::ELF_Ehdr.new(endian: endian, offset: stream.pos)
+      @header = Structs::ELF_Ehdr.new(endian:, offset: stream.pos)
       @header.elf_class = elf_class
       @header.read(stream)
     end
@@ -358,7 +358,7 @@ def identify
 
     def create_section(n)
       stream.pos = header.e_shoff + n * header.e_shentsize
-      shdr = Structs::ELF_Shdr.new(endian: endian, offset: stream.pos)
+      shdr = Structs::ELF_Shdr.new(endian:, offset: stream.pos)
       shdr.elf_class = elf_class
       shdr.read(stream)
       Sections::Section.create(shdr, stream,
@@ -369,7 +369,7 @@ def create_section(n)
 
     def create_segment(n)
       stream.pos = header.e_phoff + n * header.e_phentsize
-      phdr = Structs::ELF_Phdr[elf_class].new(endian: endian, offset: stream.pos)
+      phdr = Structs::ELF_Phdr[elf_class].new(endian:, offset: stream.pos)
       phdr.elf_class = elf_class
       Segments::Segment.create(phdr.read(stream), stream, offset_from_vma: method(:offset_from_vma))
     end

lib/elftools/note.rb

@@ -79,7 +79,7 @@ def endian
     end
 
     def create_note(cur)
-      nhdr = Structs::ELF_Nhdr.new(endian: endian, offset: stream.pos).read(stream)
+      nhdr = Structs::ELF_Nhdr.new(endian:, offset: stream.pos).read(stream)
       ELFTools::Note::Note.new(nhdr, stream, cur)
     end