Also dedup identifiers in Ruby parser

Author: rmosolgo

benchmark/run.rb

@@ -488,7 +488,7 @@ def self.profile_to_definition
   end
 
   def self.profile_from_definition
-    require "graphql/c_parser"
+    # require "graphql/c_parser"
     schema_str = SILLY_LARGE_SCHEMA.to_definition
 
     Benchmark.ips do |x|

graphql-c_parser/graphql-c_parser.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.authors     = ["Robert Mosolgo"]
   s.email       = ["rdmosolgo@gmail.com"]
   s.license     = "MIT"
-  s.required_ruby_version = ">= 2.4.0"
+  s.required_ruby_version = ">= 3.0.0"
   s.metadata    = {
     "homepage_uri" => "https://graphql-ruby.org",
     "changelog_uri" => "https://github.com/rmosolgo/graphql-ruby/blob/master/graphql-c_parser/CHANGELOG.md",

lib/graphql/language/parser.rb

@@ -35,6 +35,7 @@ def initialize(graphql_str, filename: nil, trace: Tracing::NullTrace)
         @graphql_str = graphql_str
         @filename = filename
         @trace = trace
+        @dedup_identifiers = false
       end
 
       def parse
@@ -732,6 +733,9 @@ def raise_parse_error(message)
       # Only use when we care about the expected token's value
       def expect_token_value(tok)
         token_value = @lexer.token_value
+        if @dedup_identifiers
+          token_value = -token_value
+        end
         expect_token(tok)
         token_value
       end
@@ -741,6 +745,12 @@ def expect_token_value(tok)
       def debug_token_value
         @lexer.debug_token_value(token_name)
       end
+      class SchemaParser < Parser
+        def initialize(*args, **kwargs)
+          super
+          @dedup_identifiers = true
+        end
+      end
     end
   end
 end