Autocorrect and replace #nil? with Primitive.nil?

Author: andrykonchin

src/main/ruby/truffleruby/core/enumerator.rb

@@ -70,7 +70,7 @@ class Enumerator
   end
 
   def inspect
-    return "#<#{self.class}: uninitialized>" if @object.nil? && @iter.nil?
+    return "#<#{self.class}: uninitialized>" if Primitive.nil?(@object) && Primitive.nil?(@iter)
 
     args = @kwargs.empty? ? @args : [*@args, @kwargs]
     args = args.empty? ? '' : "(#{args.map(&:inspect).join(', ')})"
@@ -222,7 +222,7 @@ def self.produce(initial = nil)
     # Taken from https://github.com/zverok/enumerator_generate
     raise ArgumentError, 'No block given' unless block_given?
     Enumerator.new(Float::INFINITY) do |y|
-      val = initial == nil ? yield() : initial
+      val = Primitive.nil?(initial) ? yield() : initial
 
       loop do
         y << val

src/main/ruby/truffleruby/core/io.rb

@@ -1014,7 +1014,7 @@ def binmode?
 
   # Used to find out if there is buffered data available.
   private def buffer_empty?
-    @ibuffer.nil? or @ibuffer.empty?
+    Primitive.nil?(@ibuffer) or @ibuffer.empty?
   end
 
   def close_on_exec=(value)

src/main/ruby/truffleruby/core/kernel.rb

@@ -761,7 +761,7 @@ def caller_locations(omit = 1, length = undefined)
   module_function :caller_locations
 
   def at_exit(&block)
-    raise ArgumentError, 'called without a block' if block.nil?
+    raise ArgumentError, 'called without a block' if Primitive.nil?(block)
     Truffle::KernelOperations.at_exit false, &block
   end
   module_function :at_exit

src/main/ruby/truffleruby/core/process.rb

@@ -683,19 +683,19 @@ def coredump?
     end
 
     def exited?
-      @exitstatus != nil
+      !Primitive.nil?(@exitstatus)
     end
 
     def pid
       @pid
     end
 
     def signaled?
-      @termsig != nil
+      !Primitive.nil?(@termsig)
     end
 
     def stopped?
-      @stopsig != nil
+      !Primitive.nil?(@stopsig)
     end
 
     def success?

src/main/ruby/truffleruby/core/string.rb

@@ -290,7 +290,7 @@ def strip
   def strip!
     right = rstrip! # Process rstrip! first because it must perform an encoding compatibility check that lstrip! does not.
     left = lstrip!
-    left.nil? && right.nil? ? nil : self
+    Primitive.nil?(left) && Primitive.nil?(right) ? nil : self
   end
 
   def succ

src/main/ruby/truffleruby/core/time.rb

@@ -179,7 +179,7 @@ def localtime(offset = nil)
     # the only cases when #localtime is allowed for a frozen time -
     # - to covert from UTC to UTC
     # - to convert from local time to the same local time
-    if frozen? && !(utc? && to_utc || !utc? && offset.nil?)
+    if frozen? && !(utc? && to_utc || !utc? && Primitive.nil?(offset))
       raise FrozenError, "can't modify frozen Time: #{self}"
     end
 

src/main/ruby/truffleruby/core/truffle/complex_operations.rb

@@ -20,12 +20,12 @@ def self.convert_not_real_arguments(real, imag, exception)
 
       if Primitive.object_kind_of?(real, String)
         real = String::Complexifier.new(real).strict_convert(exception)
-        return nil if real.nil?
+        return nil if Primitive.nil?(real)
       end
 
       if Primitive.object_kind_of?(imag, String)
         imag = String::Complexifier.new(imag).strict_convert(exception)
-        return nil if imag.nil?
+        return nil if Primitive.nil?(imag)
       end
 
       if Primitive.object_kind_of?(real, Complex) && !Primitive.object_kind_of?(real.imag, Float) && real.imag == 0

src/main/ruby/truffleruby/core/truffle/process_operations.rb

@@ -309,7 +309,7 @@ def parse_options(options)
 
       def redirect(child_fd, parent_fd)
         map = (@options[:redirect_fd] ||= [])
-        if parent_fd.nil?
+        if Primitive.nil?(parent_fd)
           fds_to_close = (@options[:fds_to_close] ||= [])
           fds_to_close << child_fd
         elsif child_fd == parent_fd

src/main/ruby/truffleruby/core/truffle/regexp_operations.rb

@@ -122,9 +122,9 @@ def self.match_args_to_string(re, str, enc, from, to, at_start, start, suffix)
     end
 
     def self.results_match?(md1, md2)
-      if md1 == nil
-        md2 == nil
-      elsif md2 == nil
+      if Primitive.nil?(md1)
+        Primitive.nil?(md2)
+      elsif Primitive.nil?(md2)
         false
       elsif Primitive.object_kind_of?(md1, Exception)
         md1.class == md2.class
@@ -144,7 +144,7 @@ def self.results_match?(md1, md2)
     end
 
     def self.print_match_data(md)
-      if md == nil
+      if Primitive.nil?(md)
         $stderr.puts '    NO MATCH'
       elsif Primitive.object_kind_of?(md, Exception)
         $stderr.puts "    EXCEPTION - #{md}"