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| 1 | +# frozen_string_literal: true |
| 2 | + |
| 3 | +module GraphQL |
| 4 | + module Cardinal |
| 5 | + module Introspection |
| 6 | + module Schema |
| 7 | + class EndpointResolver < FieldResolver |
| 8 | + def resolve(objects, _args, ctx, _exec_field) |
| 9 | + Array.new(objects.length, ctx.query.schema) |
| 10 | + end |
| 11 | + end |
| 12 | + |
| 13 | + class TypesResolver < FieldResolver |
| 14 | + def resolve(objects, _args, ctx, _exec_field) |
| 15 | + types = ctx.query.types.all_types |
| 16 | + Array.new(objects.length, types) |
| 17 | + end |
| 18 | + end |
| 19 | + |
| 20 | + class DirectivesResolver < FieldResolver |
| 21 | + def resolve(objects, _args, ctx, _exec_field) |
| 22 | + directives = ctx.query.types.directives |
| 23 | + Array.new(objects.length, directives) |
| 24 | + end |
| 25 | + end |
| 26 | + end |
| 27 | + |
| 28 | + module Type |
| 29 | + class EndpointResolver < FieldResolver |
| 30 | + def resolve(objects, args, ctx, _exec_field) |
| 31 | + type = ctx.query.get_type(args["name"]) |
| 32 | + Array.new(objects.length, type) |
| 33 | + end |
| 34 | + end |
| 35 | + |
| 36 | + class TypeKindResolver < FieldResolver |
| 37 | + def resolve(objects, _args, ctx, _exec_field) |
| 38 | + map_sources(objects) do |type| |
| 39 | + type.kind.name |
| 40 | + end |
| 41 | + end |
| 42 | + end |
| 43 | + |
| 44 | + class EnumValuesResolver < FieldResolver |
| 45 | + def resolve(objects, args, ctx, _exec_field) |
| 46 | + map_sources(objects) do |type| |
| 47 | + if type.kind.enum? |
| 48 | + enum_values = ctx.query.types.enum_values(type) |
| 49 | + enum_values = enum_values.reject(&:deprecation_reason) unless args["includeDeprecated"] |
| 50 | + enum_values |
| 51 | + end |
| 52 | + end |
| 53 | + end |
| 54 | + end |
| 55 | + |
| 56 | + class FieldsResolver < FieldResolver |
| 57 | + def resolve(objects, args, ctx, _exec_field) |
| 58 | + map_sources(objects) do |type| |
| 59 | + if type.kind.fields? |
| 60 | + fields = ctx.query.types.fields(type) |
| 61 | + fields = fields.reject(&:deprecation_reason) unless args["includeDeprecated"] |
| 62 | + fields |
| 63 | + end |
| 64 | + end |
| 65 | + end |
| 66 | + end |
| 67 | + |
| 68 | + class InputFieldsResolver < FieldResolver |
| 69 | + def resolve(objects, args, ctx, _exec_field) |
| 70 | + map_sources(objects) do |type| |
| 71 | + if type.kind.input_object? |
| 72 | + fields = ctx.query.types.arguments(type) |
| 73 | + fields = fields.reject(&:deprecation_reason) unless args["includeDeprecated"] |
| 74 | + fields |
| 75 | + end |
| 76 | + end |
| 77 | + end |
| 78 | + end |
| 79 | + |
| 80 | + class InterfacesResolver < FieldResolver |
| 81 | + def resolve(objects, args, ctx, _exec_field) |
| 82 | + map_sources(objects) do |type| |
| 83 | + ctx.query.types.interfaces(type) if type.kind.fields? |
| 84 | + end |
| 85 | + end |
| 86 | + end |
| 87 | + |
| 88 | + class PossibleTypesResolver < FieldResolver |
| 89 | + def resolve(objects, args, ctx, _exec_field) |
| 90 | + map_sources(objects) do |type| |
| 91 | + ctx.query.possible_types(type) if type.kind.abstract? |
| 92 | + end |
| 93 | + end |
| 94 | + end |
| 95 | + |
| 96 | + class OfTypeResolver < FieldResolver |
| 97 | + def resolve(objects, args, ctx, _exec_field) |
| 98 | + map_sources(objects) do |type| |
| 99 | + type.of_type if type.kind.wraps? |
| 100 | + end |
| 101 | + end |
| 102 | + end |
| 103 | + |
| 104 | + class SpecifiedByUrlResolver < FieldResolver |
| 105 | + def resolve(objects, args, ctx, _exec_field) |
| 106 | + map_sources(objects) do |type| |
| 107 | + type.specified_by_url if type.kind.scalar? |
| 108 | + end |
| 109 | + end |
| 110 | + end |
| 111 | + end |
| 112 | + |
| 113 | + class ArgumentsResolver < FieldResolver |
| 114 | + def resolve(objects, args, ctx, _exec_field) |
| 115 | + map_sources(objects) do |owner| |
| 116 | + owner_args = ctx.query.types.arguments(owner) |
| 117 | + owner_args = owner_args.reject(&:deprecation_reason) unless args["includeDeprecated"] |
| 118 | + owner_args |
| 119 | + end |
| 120 | + end |
| 121 | + end |
| 122 | + |
| 123 | + class ArgumentDefaultValueResolver < FieldResolver |
| 124 | + def resolve(objects, args, ctx, _exec_field) |
| 125 | + builder = nil |
| 126 | + printer = nil |
| 127 | + map_sources(objects) do |arg| |
| 128 | + next nil unless arg.default_value? |
| 129 | + |
| 130 | + builder ||= GraphQL::Language::DocumentFromSchemaDefinition.new(ctx.query.schema, context: ctx) |
| 131 | + printer ||= GraphQL::Language::Printer.new |
| 132 | + printer.print(builder.build_default_value(arg.default_value, arg.type)) |
| 133 | + end |
| 134 | + end |
| 135 | + end |
| 136 | + |
| 137 | + class IsDeprecatedResolver < FieldResolver |
| 138 | + def resolve(objects, args, ctx, _exec_field) |
| 139 | + map_sources(objects) { !!_1.deprecation_reason } |
| 140 | + end |
| 141 | + end |
| 142 | + |
| 143 | + ENTRYPOINT_RESOLVERS = { |
| 144 | + "__schema" => Schema::EndpointResolver.new, |
| 145 | + "__type" => Type::EndpointResolver.new, |
| 146 | + }.freeze |
| 147 | + |
| 148 | + TYPE_RESOLVERS = { |
| 149 | + "__Schema" => { |
| 150 | + "description" => MethodResolver.new(:description), |
| 151 | + "directives" => Schema::DirectivesResolver.new, |
| 152 | + "mutationType" => MethodResolver.new(:mutation), |
| 153 | + "queryType" => MethodResolver.new(:query), |
| 154 | + "subscriptionType" => MethodResolver.new(:subscription), |
| 155 | + "types" => Schema::TypesResolver.new, |
| 156 | + }, |
| 157 | + "__Type" => { |
| 158 | + "description" => MethodResolver.new(:description), |
| 159 | + "enumValues" => Type::EnumValuesResolver.new, |
| 160 | + "fields" => Type::FieldsResolver.new, |
| 161 | + "inputFields" => Type::InputFieldsResolver.new, |
| 162 | + "interfaces" => Type::InterfacesResolver.new, |
| 163 | + "kind" => Type::TypeKindResolver.new, |
| 164 | + "name" => MethodResolver.new(:graphql_name), |
| 165 | + "ofType" => Type::OfTypeResolver.new, |
| 166 | + "possibleTypes" => Type::PossibleTypesResolver.new, |
| 167 | + "specifiedByURL" => Type::SpecifiedByUrlResolver.new, |
| 168 | + }, |
| 169 | + "__Field" => { |
| 170 | + "args" => ArgumentsResolver.new, |
| 171 | + "deprecationReason" => MethodResolver.new(:deprecation_reason), |
| 172 | + "description" => MethodResolver.new(:description), |
| 173 | + "isDeprecated" => IsDeprecatedResolver.new, |
| 174 | + "name" => MethodResolver.new(:graphql_name), |
| 175 | + "type" => MethodResolver.new(:type), |
| 176 | + }, |
| 177 | + "__InputValue" => { |
| 178 | + "defaultValue" => ArgumentDefaultValueResolver.new, |
| 179 | + "deprecationReason" => MethodResolver.new(:deprecation_reason), |
| 180 | + "description" => MethodResolver.new(:description), |
| 181 | + "isDeprecated" => IsDeprecatedResolver.new, |
| 182 | + "name" => MethodResolver.new(:graphql_name), |
| 183 | + "type" => MethodResolver.new(:type), |
| 184 | + }, |
| 185 | + "__EnumValue" => { |
| 186 | + "deprecationReason" => MethodResolver.new(:deprecation_reason), |
| 187 | + "description" => MethodResolver.new(:description), |
| 188 | + "isDeprecated" => IsDeprecatedResolver.new, |
| 189 | + "name" => MethodResolver.new(:graphql_name), |
| 190 | + }, |
| 191 | + "__Directive" => { |
| 192 | + "args" => ArgumentsResolver.new, |
| 193 | + "description" => MethodResolver.new(:description), |
| 194 | + "isRepeatable" => MethodResolver.new(:repeatable?), |
| 195 | + "locations" => MethodResolver.new(:locations), |
| 196 | + "name" => MethodResolver.new(:graphql_name), |
| 197 | + } |
| 198 | + }.freeze |
| 199 | + end |
| 200 | + end |
| 201 | +end |
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