diff --git a/lib/graphql/language/lexer.rb b/lib/graphql/language/lexer.rb
index fd984821a7..d652343a9d 100644
--- a/lib/graphql/language/lexer.rb
+++ b/lib/graphql/language/lexer.rb
@@ -11,18 +11,36 @@ def self.tokenize(query_string)
 # To avoid allocating more strings, this modifies the string passed into it
 def self.replace_escaped_characters_in_place(raw_string)
 	raw_string.gsub!(ESCAPES, ESCAPES_REPLACE)
-	raw_string.gsub!(UTF_8, &UTF_8_REPLACE)
-	nil
+	raw_string.gsub!(UTF_8) do |_matched_str|
+	codepoint_1 = ($1 || $2).to_i(16)
+	codepoint_2 = $3
+	
+	if codepoint_2
+		codepoint_2 = codepoint_2.to_i(16)
+		if (codepoint_1 >= 0xD800 && codepoint_1 <= 0xDBFF) && # leading surrogate
+			(codepoint_2 >= 0xDC00 && codepoint_2 <= 0xDFFF) # trailing surrogate
+			# A surrogate pair
+			combined = ((codepoint_1 - 0xD800) * 0x400) + (codepoint_2 - 0xDC00) + 0x10000
+			[combined].pack('U'.freeze)
+			else
+			# Two separate code points
+			[codepoint_1].pack('U'.freeze) + [codepoint_2].pack('U'.freeze)
+		end
+		else
+		[codepoint_1].pack('U'.freeze)
+	end
 end
-
-private
-
-class << self
+nil
+end
+	
+	private
+	
+class 	<< self
 	attr_accessor :_graphql_lexer_trans_keys 
 	private :_graphql_lexer_trans_keys, :_graphql_lexer_trans_keys=
 end
 self._graphql_lexer_trans_keys = [
-1, 0, 4, 22, 4, 43, 14, 46, 14, 46, 14, 46, 14, 46, 4, 22, 4, 4, 4, 4, 4, 22, 4, 4, 4, 4, 14, 15, 14, 15, 10, 15, 12, 12, 4, 22, 4, 43, 14, 46, 14, 46, 14, 46, 14, 46, 0, 49, 0, 0, 4, 22, 4, 4, 4, 4, 4, 4, 4, 22, 4, 4, 4, 4, 1, 1, 14, 15, 10, 29, 14, 15, 10, 29, 10, 29, 12, 12, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 4, 4, 0 , 
+1, 0, 4, 22, 4, 43, 14, 47, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 49, 4, 22, 4, 4, 4, 4, 4, 22, 4, 4, 4, 4, 14, 15, 14, 15, 10, 15, 12, 12, 4, 22, 4, 43, 14, 47, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 49, 0, 49, 0, 0, 4, 22, 4, 4, 4, 4, 4, 4, 4, 22, 4, 4, 4, 4, 1, 1, 14, 15, 10, 29, 14, 15, 10, 29, 10, 29, 12, 12, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 14, 46, 4, 4, 0 , 
 ]
 
 class << self
@@ -38,7 +56,7 @@ class << self
 	private :_graphql_lexer_index_offsets, :_graphql_lexer_index_offsets=
 end
 self._graphql_lexer_index_offsets = [
-0, 0, 19, 59, 92, 125, 158, 191, 210, 211, 212, 231, 232, 233, 235, 237, 243, 244, 263, 303, 336, 369, 402, 435, 485, 486, 505, 506, 507, 508, 527, 528, 529, 530, 532, 552, 554, 574, 594, 595, 628, 661, 694, 727, 760, 793, 826, 859, 892, 925, 958, 991, 1024, 1057, 1090, 1123, 1156, 1189, 1222, 1255, 1288, 1321, 1354, 1387, 1420, 1453, 1486, 1519, 1552, 1585, 1618, 1651, 1684, 1717, 1750, 1783, 1816, 1849, 1882, 1915, 1948, 1981, 2014, 2047, 2080, 2113, 2146, 2179, 2212, 2245, 2278, 2311, 2344, 2377, 2410, 2443, 2476, 2509, 2542, 2575, 2608, 2641, 2674, 2707, 2740, 2773, 2806, 2839, 2872, 2905, 2938, 2971, 3004, 3037, 3070, 3103, 3136, 3169, 3202, 3235, 3268, 3301, 3334, 3367, 3400, 3433, 3466, 3499, 3532, 3565, 3598, 3631, 3664, 3697, 3730, 0 , 
+0, 0, 19, 59, 93, 126, 159, 192, 225, 258, 291, 324, 360, 379, 380, 381, 400, 401, 402, 404, 406, 412, 413, 432, 472, 506, 539, 572, 605, 638, 671, 704, 737, 773, 823, 824, 843, 844, 845, 846, 865, 866, 867, 868, 870, 890, 892, 912, 932, 933, 966, 999, 1032, 1065, 1098, 1131, 1164, 1197, 1230, 1263, 1296, 1329, 1362, 1395, 1428, 1461, 1494, 1527, 1560, 1593, 1626, 1659, 1692, 1725, 1758, 1791, 1824, 1857, 1890, 1923, 1956, 1989, 2022, 2055, 2088, 2121, 2154, 2187, 2220, 2253, 2286, 2319, 2352, 2385, 2418, 2451, 2484, 2517, 2550, 2583, 2616, 2649, 2682, 2715, 2748, 2781, 2814, 2847, 2880, 2913, 2946, 2979, 3012, 3045, 3078, 3111, 3144, 3177, 3210, 3243, 3276, 3309, 3342, 3375, 3408, 3441, 3474, 3507, 3540, 3573, 3606, 3639, 3672, 3705, 3738, 3771, 3804, 3837, 3870, 3903, 3936, 3969, 4002, 4035, 4068, 0 , 
 ]
 
 class << self
@@ -46,7 +64,7 @@ class << self
 	private :_graphql_lexer_indicies, :_graphql_lexer_indicies=
 end
 self._graphql_lexer_indicies = [
-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 4, 5, 5, 0, 0, 0, 5, 5, 0, 0, 0, 0, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 0, 0, 0, 6, 6, 0, 0, 0, 0, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 0, 0, 0, 7, 7, 0, 0, 0, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 12, 13, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 15, 16, 17, 17, 19, 19, 20, 20, 8, 8, 17, 17, 21, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 24, 22, 25, 25, 25, 25, 25, 25, 25, 25, 22, 25, 25, 25, 25, 25, 25, 25, 25, 22, 25, 25, 25, 22, 25, 25, 25, 22, 25, 25, 25, 25, 25, 22, 25, 25, 25, 22, 25, 22, 26, 27, 27, 25, 25, 25, 27, 27, 25, 25, 25, 25, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 25, 25, 25, 28, 28, 25, 25, 25, 25, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 25, 25, 25, 29, 29, 25, 25, 25, 25, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 22, 22, 25, 25, 25, 22, 22, 25, 25, 25, 25, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 31, 32, 30, 33, 34, 35, 36, 37, 38, 39, 30, 40, 41, 30, 42, 43, 44, 45, 46, 47, 47, 48, 30, 49, 47, 47, 47, 47, 50, 51, 52, 47, 47, 53, 47, 54, 55, 56, 47, 57, 58, 59, 60, 61, 47, 47, 47, 62, 63, 64, 31, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 9, 70, 71, 72, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 73, 13, 74, 42, 43, 20, 20, 76, 75, 17, 17, 75, 75, 75, 75, 77, 75, 75, 75, 75, 75, 75, 75, 75, 77, 17, 17, 20, 20, 78, 78, 19, 19, 78, 78, 78, 78, 77, 78, 78, 78, 78, 78, 78, 78, 78, 77, 20, 20, 76, 75, 43, 43, 75, 75, 75, 75, 77, 75, 75, 75, 75, 75, 75, 75, 75, 77, 79, 47, 47, 8, 8, 8, 47, 47, 8, 8, 8, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 81, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 82, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 83, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 84, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 85, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 86, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 87, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 88, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 89, 47, 47, 47, 47, 47, 47, 47, 47, 90, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 91, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 92, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 93, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 94, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 95, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 96, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 97, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 98, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 99, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 100, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 101, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 102, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 103, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 104, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 105, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 106, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 107, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 108, 109, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 110, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 111, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 112, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 113, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 114, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 115, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 116, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 117, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 118, 47, 47, 47, 119, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 120, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 121, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 122, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 123, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 47, 124, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 125, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 126, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 47, 47, 47, 127, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 80, 80, 80, 47, 47, 80, 80, 80, 47, 47, 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57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 136, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 137, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 138, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 139, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 140, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 141, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 142, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 143, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 144, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 145, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 146, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 147, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 148, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 149, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 150, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 151, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 152, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 153, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 154, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 155, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 156, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 157, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 158, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 159, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 160, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 161, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 162, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 163, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 164, 57, 57, 57, 57, 57, 57, 165, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 166, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 167, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 168, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 169, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 170, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 171, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 172, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 173, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 174, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 175, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 176, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 177, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 178, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 179, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 180, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 181, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 182, 57, 57, 57, 57, 57, 183, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 184, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 185, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 186, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 187, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 188, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 189, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 190, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 90, 90, 90, 57, 57, 90, 90, 90, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 191, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 27, 0 , 
 ]
 
 class << self
@@ -54,7 +72,7 @@ class << self
 	private :_graphql_lexer_index_defaults, :_graphql_lexer_index_defaults=
 end
 self._graphql_lexer_index_defaults = [
-0, 1, 0, 0, 0, 0, 0, 9, 9, 9, 9, 9, 9, 8, 18, 8, 0, 22, 25, 25, 25, 25, 25, 30, 65, 1, 68, 69, 69, 9, 9, 9, 35, 66, 75, 78, 78, 75, 66, 8, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 25, 0 , 
+0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 13, 23, 13, 0, 27, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 40, 75, 1, 78, 79, 79, 14, 14, 14, 45, 76, 85, 88, 88, 85, 76, 13, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 30, 0 , 
 ]
 
 class << self
@@ -62,7 +80,7 @@ class << self
 	private :_graphql_lexer_trans_cond_spaces, :_graphql_lexer_trans_cond_spaces=
 end
 self._graphql_lexer_trans_cond_spaces = [
--1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0 , 
+-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0 , 
 ]
 
 class << self
@@ -70,7 +88,7 @@ class << self
 	private :_graphql_lexer_cond_targs, :_graphql_lexer_cond_targs=
 end
 self._graphql_lexer_cond_targs = [
-23, 1, 23, 2, 3, 4, 5, 6, 23, 7, 8, 10, 9, 27, 11, 12, 29, 35, 23, 36, 13, 23, 17, 134, 18, 0, 19, 20, 21, 22, 23, 24, 23, 23, 25, 32, 23, 23, 23, 23, 33, 38, 34, 37, 23, 23, 23, 39, 23, 23, 40, 48, 55, 65, 83, 90, 93, 94, 98, 107, 125, 130, 23, 23, 23, 23, 23, 26, 23, 23, 28, 23, 30, 31, 23, 23, 14, 15, 23, 16, 23, 41, 42, 43, 44, 45, 46, 47, 39, 49, 51, 50, 39, 52, 53, 54, 39, 56, 59, 57, 58, 39, 60, 61, 62, 63, 64, 39, 66, 74, 67, 68, 69, 70, 71, 72, 73, 39, 75, 77, 76, 39, 78, 79, 80, 81, 82, 39, 84, 85, 86, 87, 88, 89, 39, 91, 92, 39, 39, 95, 96, 97, 39, 99, 100, 101, 102, 103, 104, 105, 106, 39, 108, 115, 109, 112, 110, 111, 39, 113, 114, 39, 116, 117, 118, 119, 120, 121, 122, 123, 124, 39, 126, 128, 127, 39, 129, 39, 131, 132, 133, 39, 0 , 
+33, 1, 33, 2, 3, 4, 7, 5, 6, 8, 9, 10, 11, 33, 12, 13, 15, 14, 37, 16, 17, 39, 45, 33, 46, 18, 33, 22, 144, 23, 0, 24, 25, 28, 26, 27, 29, 30, 31, 32, 33, 34, 33, 33, 35, 42, 33, 33, 33, 33, 43, 48, 44, 47, 33, 33, 33, 49, 33, 33, 50, 58, 65, 75, 93, 100, 103, 104, 108, 117, 135, 140, 33, 33, 33, 33, 33, 36, 33, 33, 38, 33, 40, 41, 33, 33, 19, 20, 33, 21, 33, 51, 52, 53, 54, 55, 56, 57, 49, 59, 61, 60, 49, 62, 63, 64, 49, 66, 69, 67, 68, 49, 70, 71, 72, 73, 74, 49, 76, 84, 77, 78, 79, 80, 81, 82, 83, 49, 85, 87, 86, 49, 88, 89, 90, 91, 92, 49, 94, 95, 96, 97, 98, 99, 49, 101, 102, 49, 49, 105, 106, 107, 49, 109, 110, 111, 112, 113, 114, 115, 116, 49, 118, 125, 119, 122, 120, 121, 49, 123, 124, 49, 126, 127, 128, 129, 130, 131, 132, 133, 134, 49, 136, 138, 137, 49, 139, 49, 141, 142, 143, 49, 0 , 
 ]
 
 class << self
@@ -78,7 +96,7 @@ class << self
 	private :_graphql_lexer_cond_actions, :_graphql_lexer_cond_actions=
 end
 self._graphql_lexer_cond_actions = [
-1, 0, 2, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 5, 6, 0, 7, 0, 8, 0, 0, 0, 0, 0, 0, 11, 0, 12, 13, 14, 0, 15, 16, 17, 18, 0, 14, 19, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 0, 34, 4, 4, 35, 36, 0, 0, 37, 0, 38, 0, 0, 0, 0, 0, 0, 0, 39, 0, 0, 0, 40, 0, 0, 0, 41, 0, 0, 0, 0, 42, 0, 0, 0, 0, 0, 43, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 0, 0, 0, 45, 0, 0, 0, 0, 0, 46, 0, 0, 0, 0, 0, 0, 47, 0, 0, 48, 49, 0, 0, 0, 50, 0, 0, 0, 0, 0, 0, 0, 0, 51, 0, 0, 0, 0, 0, 0, 52, 0, 0, 53, 0, 0, 0, 0, 0, 0, 0, 0, 0, 54, 0, 0, 0, 55, 0, 56, 0, 0, 0, 57, 0 , 
+1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 5, 6, 0, 7, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 12, 13, 14, 0, 15, 16, 17, 18, 0, 14, 19, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 0, 34, 4, 4, 35, 36, 0, 0, 37, 0, 38, 0, 0, 0, 0, 0, 0, 0, 39, 0, 0, 0, 40, 0, 0, 0, 41, 0, 0, 0, 0, 42, 0, 0, 0, 0, 0, 43, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 0, 0, 0, 45, 0, 0, 0, 0, 0, 46, 0, 0, 0, 0, 0, 0, 47, 0, 0, 48, 49, 0, 0, 0, 50, 0, 0, 0, 0, 0, 0, 0, 0, 51, 0, 0, 0, 0, 0, 0, 52, 0, 0, 53, 0, 0, 0, 0, 0, 0, 0, 0, 0, 54, 0, 0, 0, 55, 0, 56, 0, 0, 0, 57, 0 , 
 ]
 
 class << self
@@ -86,7 +104,7 @@ class << self
 	private :_graphql_lexer_to_state_actions, :_graphql_lexer_to_state_actions=
 end
 self._graphql_lexer_to_state_actions = [
-0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0 , 
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0 , 
 ]
 
 class << self
@@ -94,7 +112,7 @@ class << self
 	private :_graphql_lexer_from_state_actions, :_graphql_lexer_from_state_actions=
 end
 self._graphql_lexer_from_state_actions = [
-0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0 , 
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0 , 
 ]
 
 class << self
@@ -102,7 +120,7 @@ class << self
 	private :_graphql_lexer_eof_trans, :_graphql_lexer_eof_trans=
 end
 self._graphql_lexer_eof_trans = [
-0, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 19, 9, 1, 0, 0, 0, 0, 0, 0, 0, 66, 67, 69, 70, 70, 70, 70, 70, 75, 67, 76, 79, 79, 76, 67, 9, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 0, 0 , 
+0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 14, 14, 14, 14, 14, 14, 14, 24, 14, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 76, 77, 79, 80, 80, 80, 80, 80, 85, 77, 86, 89, 89, 86, 77, 14, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 0, 0 , 
 ]
 
 class << self
@@ -118,7 +136,7 @@ class << self
 	private :_graphql_lexer_nfa_offsets, :_graphql_lexer_nfa_offsets=
 end
 self._graphql_lexer_nfa_offsets = [
-0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , 
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , 
 ]
 
 class << self
@@ -140,12 +158,12 @@ class << self
 class << self
 	attr_accessor :graphql_lexer_start 
 end
-self.graphql_lexer_start  = 23;
+self.graphql_lexer_start  = 33;
 
 class << self
 	attr_accessor :graphql_lexer_first_final 
 end
-self.graphql_lexer_first_final  = 23;
+self.graphql_lexer_first_final  = 33;
 
 class << self
 	attr_accessor :graphql_lexer_error 
@@ -155,12 +173,12 @@ class << self
 class << self
 	attr_accessor :graphql_lexer_en_str 
 end
-self.graphql_lexer_en_str  = 134;
+self.graphql_lexer_en_str  = 144;
 
 class << self
 	attr_accessor :graphql_lexer_en_main 
 end
-self.graphql_lexer_en_main  = 23;
+self.graphql_lexer_en_main  = 33;
 
 def self.run_lexer(query_string)
 	data = query_string.unpack(PACK_DIRECTIVE)
@@ -1435,8 +1453,8 @@ def self.emit(token_name, ts, te, meta, token_value = nil)
 "\\t" => "\t",
 }
 
-UTF_8 = /\\u[\dAa-f]{4}/i
-UTF_8_REPLACE = ->(m) { [m[-4..-1].to_i(16)].pack('U'.freeze) }
+UTF_8 = /\\u(?:([\dAa-f]{4})|\{([\da-f]{4,})\})(?:\\u([\dAa-f]{4}))?/i
+
 
 VALID_STRING = /\A(?:[^\\]|#{ESCAPES}|#{UTF_8})*\z/o
 
@@ -1451,8 +1469,7 @@ def self.emit_string(ts, te, meta, block:)
 line_incr = value.count("\n")
 value = GraphQL::Language::BlockString.trim_whitespace(value)
 end
-# TODO: replace with `String#match?` when we support only Ruby 2.4+
-# (It's faster: https://bugs.ruby-lang.org/issues/8110)
+
 if !value.valid_encoding? || !value.match?(VALID_STRING)
 meta[:tokens] << token = GraphQL::Language::Token.new(
 :BAD_UNICODE_ESCAPE,
diff --git a/lib/graphql/language/lexer.rl b/lib/graphql/language/lexer.rl
index bb9292fe4b..0247a9adbb 100644
--- a/lib/graphql/language/lexer.rl
+++ b/lib/graphql/language/lexer.rl
@@ -39,7 +39,10 @@
   BACKSLASH = '\\';
   # Could limit to hex here, but “bad unicode escape” on 0XXF is probably a
   # more helpful error than “unknown char”
-  UNICODE_ESCAPE = '\\u' [0-9A-Za-z]{4};
+  UNICODE_DIGIT = [0-9A-Za-z];
+  FOUR_DIGIT_UNICODE = UNICODE_DIGIT{4};
+  N_DIGIT_UNICODE = LCURLY UNICODE_DIGIT{4,} RCURLY;
+  UNICODE_ESCAPE = '\\u' (FOUR_DIGIT_UNICODE | N_DIGIT_UNICODE);
   # https://graphql.github.io/graphql-spec/June2018/#sec-String-Value
   STRING_ESCAPE = '\\' [\\/bfnrt];
   BLOCK_QUOTE =   '"""';
@@ -131,7 +134,25 @@ module GraphQL
       # To avoid allocating more strings, this modifies the string passed into it
       def self.replace_escaped_characters_in_place(raw_string)
         raw_string.gsub!(ESCAPES, ESCAPES_REPLACE)
-        raw_string.gsub!(UTF_8, &UTF_8_REPLACE)
+        raw_string.gsub!(UTF_8) do |_matched_str|
+          codepoint_1 = ($1 || $2).to_i(16)
+          codepoint_2 = $3
+
+          if codepoint_2
+            codepoint_2 = codepoint_2.to_i(16)
+            if (codepoint_1 >= 0xD800 && codepoint_1 <= 0xDBFF) && # leading surrogate
+                (codepoint_2 >= 0xDC00 && codepoint_2 <= 0xDFFF) # trailing surrogate
+              # A surrogate pair
+              combined = ((codepoint_1 - 0xD800) * 0x400) + (codepoint_2 - 0xDC00) + 0x10000
+              [combined].pack('U'.freeze)
+            else
+              # Two separate code points
+              [codepoint_1].pack('U'.freeze) + [codepoint_2].pack('U'.freeze)
+            end
+          else
+            [codepoint_1].pack('U'.freeze)
+          end
+        end
         nil
       end
 
@@ -203,8 +224,8 @@ module GraphQL
         "\\t" => "\t",
       }
 
-      UTF_8 = /\\u[\dAa-f]{4}/i
-      UTF_8_REPLACE = ->(m) { [m[-4..-1].to_i(16)].pack('U'.freeze) }
+      UTF_8 = /\\u(?:([\dAa-f]{4})|\{([\da-f]{4,})\})(?:\\u([\dAa-f]{4}))?/i
+
 
       VALID_STRING = /\A(?:[^\\]|#{ESCAPES}|#{UTF_8})*\z/o
 
@@ -219,8 +240,7 @@ module GraphQL
           line_incr = value.count("\n")
           value = GraphQL::Language::BlockString.trim_whitespace(value)
         end
-        # TODO: replace with `String#match?` when we support only Ruby 2.4+
-        # (It's faster: https://bugs.ruby-lang.org/issues/8110)
+
         if !value.valid_encoding? || !value.match?(VALID_STRING)
           meta[:tokens] << token = GraphQL::Language::Token.new(
             :BAD_UNICODE_ESCAPE,
diff --git a/spec/graphql/language/lexer_spec.rb b/spec/graphql/language/lexer_spec.rb
index e0f04d0813..9342c81083 100644
--- a/spec/graphql/language/lexer_spec.rb
+++ b/spec/graphql/language/lexer_spec.rb
@@ -78,6 +78,21 @@
 
     it "unescapes escaped unicode characters" do
       assert_equal "\t", subject.tokenize('"\\u0009"').first.to_s
+      assert_equal "\t", subject.tokenize('"\\u{0009}"').first.to_s
+      assert_equal "𐘑", subject.tokenize('"\\u{10611}"').first.to_s
+      assert_equal "💩", subject.tokenize('"\\u{1F4A9}"').first.to_s
+      assert_equal "💩", subject.tokenize('"\\uD83D\\uDCA9"').first.to_s
+    end
+
+    it "accepts the full range of unicode" do
+      assert_equal "💩", subject.tokenize('"💩"').first.to_s
+      assert_equal "⌱", subject.tokenize('"⌱"').first.to_s
+      assert_equal "🂡\n🂢", subject.tokenize('"""🂡
+🂢"""').first.to_s
+    end
+
+    it "doesn't accept unicode outside strings or comments" do
+      assert_equal :UNKNOWN_CHAR, GraphQL.scan('😘 ').first.name
     end
 
     it "rejects bad unicode, even when there's good unicode in the string" do
@@ -92,7 +107,8 @@
     it "rejects unicode that's well-formed but results in invalidly-encoded strings" do
       # when the string here gets tokenized into an actual `:STRING`, it results in `valid_encoding?` being false for
       # the ruby string so application code usually blows up trying to manipulate it
-      assert_equal :BAD_UNICODE_ESCAPE, subject.tokenize('"\\ud83c\\udf2c"').first.name
+      assert_equal :BAD_UNICODE_ESCAPE, subject.tokenize('"\\udc00\\udf2c"').first.name
+      assert_equal :BAD_UNICODE_ESCAPE, subject.tokenize('"\\u{dc00}\\u{df2c}"').first.name
     end
 
     it "clears the previous_token between runs" do
diff --git a/spec/graphql/language/parser_spec.rb b/spec/graphql/language/parser_spec.rb
index c994224902..50f48bfb28 100644
--- a/spec/graphql/language/parser_spec.rb
+++ b/spec/graphql/language/parser_spec.rb
@@ -12,6 +12,13 @@
     end
   end
 
+  it "raises an error when unicode is used as names" do
+    err = assert_raises(GraphQL::ParseError) {
+      GraphQL.parse('query 😘 { a b }')
+    }
+    assert_equal "Parse error on \"\\xF0\" (error) at [1, 7]", err.message
+  end
+
   describe "anonymous fragment extension" do
     let(:document) { GraphQL.parse(query_string) }
     let(:query_string) {%|