Shush parser warnings without using an unreliable autoload

We already explicitly require parsers from message elements,
so drop the toplevel autoload and move warning suppression
into the parsers themselves.

Fixes mikel#1162

lib/mail.rb

@@ -68,8 +68,6 @@ def self.eager_autoload!
 
   require 'mail/envelope'
 
-  register_autoload :Parsers, "mail/parsers"
-
   # Autoload header field elements and transfer encodings.
   require 'mail/elements'
   require 'mail/encodings'

lib/mail/parsers.rb

@@ -1,19 +1,13 @@
 # frozen_string_literal: true
-# Ragel-generated parsers are full of known warnings. Suppress them.
-begin
-  orig, $VERBOSE = $VERBOSE, nil
 
-  require 'mail/parsers/address_lists_parser'
-  require 'mail/parsers/content_disposition_parser'
-  require 'mail/parsers/content_location_parser'
-  require 'mail/parsers/content_transfer_encoding_parser'
-  require 'mail/parsers/content_type_parser'
-  require 'mail/parsers/date_time_parser'
-  require 'mail/parsers/envelope_from_parser'
-  require 'mail/parsers/message_ids_parser'
-  require 'mail/parsers/mime_version_parser'
-  require 'mail/parsers/phrase_lists_parser'
-  require 'mail/parsers/received_parser'
-ensure
-  $VERBOSE = orig
-end
+require 'mail/parsers/address_lists_parser'
+require 'mail/parsers/content_disposition_parser'
+require 'mail/parsers/content_location_parser'
+require 'mail/parsers/content_transfer_encoding_parser'
+require 'mail/parsers/content_type_parser'
+require 'mail/parsers/date_time_parser'
+require 'mail/parsers/envelope_from_parser'
+require 'mail/parsers/message_ids_parser'
+require 'mail/parsers/mime_version_parser'
+require 'mail/parsers/phrase_lists_parser'
+require 'mail/parsers/received_parser'

lib/mail/parsers/address_lists_parser.rb

@@ -3,6 +3,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 
 
 
@@ -33205,3 +33208,7 @@ def self.parse(data)
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/address_lists_parser.rl

@@ -2,6 +2,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 %%{
   machine address_lists;
   alphtype int;
@@ -170,3 +173,7 @@ module Mail::Parsers
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_disposition_parser.rb

@@ -3,6 +3,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 
 
 
@@ -899,3 +902,7 @@ def self.parse(data)
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_disposition_parser.rl

@@ -2,6 +2,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 %%{
   machine content_disposition;
   alphtype int;
@@ -80,3 +83,7 @@ module Mail::Parsers
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_location_parser.rb

@@ -3,6 +3,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 
 
 
@@ -811,3 +814,7 @@ def self.parse(data)
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_location_parser.rl

@@ -2,6 +2,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 %%{
   # RFC 2557 Content-Location
   # https://tools.ietf.org/html/rfc2557#section-4.1
@@ -69,3 +72,7 @@ module Mail::Parsers
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_transfer_encoding_parser.rb

@@ -3,6 +3,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 
 
 
@@ -520,3 +523,7 @@ def self.parse(data)
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_transfer_encoding_parser.rl

@@ -2,6 +2,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 %%{
   machine content_transfer_encoding;
   alphtype int;
@@ -62,3 +65,7 @@ module Mail::Parsers
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_type_parser.rb

@@ -3,6 +3,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 
 
 
@@ -1043,3 +1046,7 @@ def self.parse(data)
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/content_type_parser.rl

@@ -2,6 +2,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 %%{
   machine content_type;
   alphtype int;
@@ -81,3 +84,7 @@ module Mail::Parsers
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/date_time_parser.rb

@@ -3,6 +3,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 
 
 
@@ -884,3 +887,7 @@ def self.parse(data)
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end

lib/mail/parsers/date_time_parser.rl

@@ -2,6 +2,9 @@
 require 'mail/utilities'
 require 'mail/parser_tools'
 
+begin
+  original_verbose, $VERBOSE = $VERBOSE, nil
+
 %%{
   machine date_time;
   alphtype int;
@@ -60,3 +63,7 @@ module Mail::Parsers
     end
   end
 end
+
+ensure
+  $VERBOSE = original_verbose
+end