Class: GraphQL::Execution::Interpreter::Runtime Private
- Inherits:
-
Object
- Object
- GraphQL::Execution::Interpreter::Runtime
- Defined in:
- lib/graphql/execution/interpreter/runtime.rb,
lib/graphql/execution/interpreter/runtime/graphql_result.rb
Overview
This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.
I think it would be even better if we could somehow make
continue_field
not recursive. "Trampolining" it somehow.
Defined Under Namespace
Modules: GraphQLResult Classes: CurrentState, GraphQLResultArray, GraphQLResultHash
Constant Summary collapse
- NO_ARGS =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
GraphQL::EmptyObjects::EMPTY_HASH
- HALT =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
Object.new
Instance Attribute Summary collapse
- #context ⇒ GraphQL::Query::Context readonly private
- #query ⇒ GraphQL::Query readonly private
- #schema ⇒ Class<GraphQL::Schema> readonly private
Instance Method Summary collapse
-
#after_lazy(lazy_obj, field:, owner_object:, arguments:, ast_node:, result:, result_name:, eager: false, runtime_state:, trace: true, &block) ⇒ GraphQL::Execution::Lazy, Object
private
If loading
object
will be deferred, it's a wrapper over it. - #arguments(graphql_object, arg_owner, ast_node) ⇒ Object private
- #call_method_on_directives(method_name, object, directives, &block) ⇒ Object private
-
#continue_field(value, owner_type, field, current_type, ast_node, next_selections, is_non_null, owner_object, arguments, result_name, selection_result, was_scoped, runtime_state) ⇒ Lazy, ...
private
The resolver for
field
returnedvalue
. -
#continue_value(value, parent_type, field, is_non_null, ast_node, result_name, selection_result) ⇒ Object
private
rubocop:disable Metrics/ParameterLists.
- #current_path ⇒ Object private
- #dead_result?(selection_result) ⇒ Boolean private
- #delete_all_interpreter_context ⇒ Object private
-
#directives_include?(node, graphql_object, parent_type) ⇒ Boolean
private
Check Schema::Directive.include? for each directive that's present.
- #evaluate_selection(result_name, field_ast_nodes_or_ast_node, owner_object, owner_type, is_eager_field, selections_result, parent_object, runtime_state) ⇒ void private
-
#evaluate_selection_with_args(arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, runtime_state) ⇒ Object
private
rubocop:disable Metrics/ParameterLists.
-
#evaluate_selection_with_resolved_keyword_args(kwarg_arguments, resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, return_type_non_null, runtime_state) ⇒ Object
private
rubocop:disable Metrics/ParameterLists.
- #evaluate_selections(owner_object, owner_type, is_eager_selection, gathered_selections, selections_result, target_result, parent_object, runtime_state) ⇒ void private
- #final_result ⇒ Object private
- #gather_selections(owner_object, owner_type, ast_node_for_caching, selections, selections_to_run = nil, selections_by_name = nil) ⇒ Object private
- #get_current_runtime_state ⇒ Object private
-
#initialize(query:, lazies_at_depth:) ⇒ Runtime
constructor
private
A new instance of Runtime.
- #inspect ⇒ Object private
- #lazy?(object) ⇒ Boolean private
- #minimal_after_lazy(value, &block) ⇒ Object private
-
#resolve_list_item(inner_value, inner_type, inner_type_non_null, ast_node, field, owner_object, arguments, this_idx, response_list, next_selections, owner_type, was_scoped, runtime_state) ⇒ Object
private
rubocop:disable Metrics/ParameterLists.
- #resolve_type(type, value) ⇒ Object private
- #run_directive(method_name, object, directives, idx, &block) ⇒ Object private
-
#run_eager ⇒ void
private
This begins the execution.
-
#set_graphql_dead(selection_result) ⇒ Object
private
Mark this node and any already-registered children as dead, so that it accepts no more writes.
- #set_result(selection_result, result_name, value, is_child_result, is_non_null) ⇒ Object private
- #tap_or_each(obj_or_array) ⇒ Object private
Constructor Details
#initialize(query:, lazies_at_depth:) ⇒ Runtime
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns a new instance of Runtime.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 35 def initialize(query:, lazies_at_depth:) @query = query @current_trace = query.current_trace @dataloader = query.multiplex.dataloader @lazies_at_depth = lazies_at_depth @schema = query.schema @context = query.context @response = GraphQLResultHash.new(nil, nil, false) # Identify runtime directives by checking which of this schema's directives have overridden `def self.resolve` @runtime_directive_names = [] noop_resolve_owner = GraphQL::Schema::Directive.singleton_class @schema_directives = schema.directives @schema_directives.each do |name, dir_defn| if dir_defn.method(:resolve).owner != noop_resolve_owner @runtime_directive_names << name end end # { Class => Boolean } @lazy_cache = {} @lazy_cache.compare_by_identity @gathered_selections_cache = Hash.new { |h, k| cache = {} cache.compare_by_identity h[k] = cache } @gathered_selections_cache.compare_by_identity end |
Instance Attribute Details
#context ⇒ GraphQL::Query::Context (readonly)
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 33 def context @context end |
#query ⇒ GraphQL::Query (readonly)
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 27 def query @query end |
#schema ⇒ Class<GraphQL::Schema> (readonly)
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 30 def schema @schema end |
Instance Method Details
#after_lazy(lazy_obj, field:, owner_object:, arguments:, ast_node:, result:, result_name:, eager: false, runtime_state:, trace: true, &block) ⇒ GraphQL::Execution::Lazy, Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns If loading object
will be deferred, it's a wrapper over it.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 798 def after_lazy(lazy_obj, field:, owner_object:, arguments:, ast_node:, result:, result_name:, eager: false, runtime_state:, trace: true, &block) if lazy?(lazy_obj) orig_result = result = runtime_state. lazy = GraphQL::Execution::Lazy.new(field: field) do # This block might be called in a new fiber; # In that case, this will initialize a new state # to avoid conflicting with the parent fiber. runtime_state = get_current_runtime_state runtime_state.current_object = owner_object runtime_state.current_field = field runtime_state.current_arguments = arguments runtime_state.current_result_name = result_name runtime_state.current_result = orig_result runtime_state. = # Wrap the execution of _this_ method with tracing, # but don't wrap the continuation below inner_obj = begin if trace @current_trace.execute_field_lazy(field: field, query: query, object: owner_object, arguments: arguments, ast_node: ast_node) do schema.sync_lazy(lazy_obj) end else schema.sync_lazy(lazy_obj) end rescue GraphQL::ExecutionError, GraphQL::UnauthorizedError => ex_err ex_err rescue StandardError => err begin query.handle_or_reraise(err) rescue GraphQL::ExecutionError => ex_err ex_err end end yield(inner_obj, runtime_state) end if eager lazy.value else set_result(result, result_name, lazy, false, false) # is_non_null is irrelevant here current_depth = 0 while result current_depth += 1 result = result.graphql_parent end @lazies_at_depth[current_depth] << lazy lazy end else # Don't need to reset state here because it _wasn't_ lazy. yield(lazy_obj, runtime_state) end end |
#arguments(graphql_object, arg_owner, ast_node) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 853 def arguments(graphql_object, arg_owner, ast_node) if arg_owner.arguments_statically_coercible? query.arguments_for(ast_node, arg_owner) else # The arguments must be prepared in the context of the given object query.arguments_for(ast_node, arg_owner, parent_object: graphql_object) end end |
#call_method_on_directives(method_name, object, directives, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 727 def call_method_on_directives(method_name, object, directives, &block) return yield if directives.nil? || directives.empty? run_directive(method_name, object, directives, 0, &block) end |
#continue_field(value, owner_type, field, current_type, ast_node, next_selections, is_non_null, owner_object, arguments, result_name, selection_result, was_scoped, runtime_state) ⇒ Lazy, ...
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
The resolver for field
returned value
. Continue to execute the query,
treating value
as type
(probably the return type of the field).
Use next_selections
to resolve object fields, if there are any.
Location information from path
and ast_node
.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 573 def continue_field(value, owner_type, field, current_type, ast_node, next_selections, is_non_null, owner_object, arguments, result_name, selection_result, was_scoped, runtime_state) # rubocop:disable Metrics/ParameterLists if current_type.non_null? current_type = current_type.of_type is_non_null = true end case current_type.kind.name when "SCALAR", "ENUM" r = begin current_type.coerce_result(value, context) rescue StandardError => err schema.handle_or_reraise(context, err) end set_result(selection_result, result_name, r, false, is_non_null) r when "UNION", "INTERFACE" resolved_type_or_lazy = resolve_type(current_type, value) after_lazy(resolved_type_or_lazy, ast_node: ast_node, field: field, owner_object: owner_object, arguments: arguments, trace: false, result_name: result_name, result: selection_result, runtime_state: runtime_state) do |resolved_type_result, runtime_state| if resolved_type_result.is_a?(Array) && resolved_type_result.length == 2 resolved_type, resolved_value = resolved_type_result else resolved_type = resolved_type_result resolved_value = value end possible_types = query.possible_types(current_type) if !possible_types.include?(resolved_type) parent_type = field.owner_type err_class = current_type::UnresolvedTypeError type_error = err_class.new(resolved_value, field, parent_type, resolved_type, possible_types) schema.type_error(type_error, context) set_result(selection_result, result_name, nil, false, is_non_null) nil else continue_field(resolved_value, owner_type, field, resolved_type, ast_node, next_selections, is_non_null, owner_object, arguments, result_name, selection_result, was_scoped, runtime_state) end end when "OBJECT" object_proxy = begin was_scoped ? current_type.wrap_scoped(value, context) : current_type.wrap(value, context) rescue GraphQL::ExecutionError => err err end after_lazy(object_proxy, ast_node: ast_node, field: field, owner_object: owner_object, arguments: arguments, trace: false, result_name: result_name, result: selection_result, runtime_state: runtime_state) do |inner_object, runtime_state| continue_value = continue_value(inner_object, owner_type, field, is_non_null, ast_node, result_name, selection_result) if HALT != continue_value response_hash = GraphQLResultHash.new(result_name, selection_result, is_non_null) set_result(selection_result, result_name, response_hash, true, is_non_null) gathered_selections = gather_selections(continue_value, current_type, ast_node, next_selections) # There are two possibilities for `gathered_selections`: # 1. All selections of this object should be evaluated together (there are no runtime directives modifying execution). # This case is handled below, and the result can be written right into the main `response_hash` above. # In this case, `gathered_selections` is a hash of selections. # 2. Some selections of this object have runtime directives that may or may not modify execution. # That part of the selection is evaluated in an isolated way, writing into a sub-response object which is # eventually merged into the final response. In this case, `gathered_selections` is an array of things to run in isolation. # (Technically, it's possible that one of those entries _doesn't_ require isolation.) tap_or_each(gathered_selections) do |selections, is_selection_array| if is_selection_array this_result = GraphQLResultHash.new(result_name, selection_result, is_non_null) final_result = response_hash else this_result = response_hash final_result = nil end # reset this mutable state # Unset `result_name` here because it's already included in the new response hash runtime_state.current_object = continue_value runtime_state.current_result_name = nil runtime_state.current_result = this_result # This is a less-frequent case; use a fast check since it's often not there. if (directives = selections[:graphql_directives]) selections.delete(:graphql_directives) end call_method_on_directives(:resolve, continue_value, directives) do evaluate_selections( continue_value, current_type, false, selections, this_result, final_result, owner_object.object, runtime_state, ) this_result end end end end when "LIST" inner_type = current_type.of_type # This is true for objects, unions, and interfaces use_dataloader_job = !inner_type.unwrap.kind.input? inner_type_non_null = inner_type.non_null? response_list = GraphQLResultArray.new(result_name, selection_result, is_non_null) set_result(selection_result, result_name, response_list, true, is_non_null) idx = nil list_value = begin value.each do |inner_value| idx ||= 0 this_idx = idx idx += 1 if use_dataloader_job @dataloader.append_job do resolve_list_item(inner_value, inner_type, inner_type_non_null, ast_node, field, owner_object, arguments, this_idx, response_list, next_selections, owner_type, was_scoped, runtime_state) end else resolve_list_item(inner_value, inner_type, inner_type_non_null, ast_node, field, owner_object, arguments, this_idx, response_list, next_selections, owner_type, was_scoped, runtime_state) end end response_list rescue NoMethodError => err # Ruby 2.2 doesn't have NoMethodError#receiver, can't check that one in this case. (It's been EOL since 2017.) if err.name == :each && (err.respond_to?(:receiver) ? err.receiver == value : true) # This happens when the GraphQL schema doesn't match the implementation. Help the dev debug. raise ListResultFailedError.new(value: value, field: field, path: current_path) else # This was some other NoMethodError -- let it bubble to reveal the real error. raise end rescue GraphQL::ExecutionError, GraphQL::UnauthorizedError => ex_err ex_err rescue StandardError => err begin query.handle_or_reraise(err) rescue GraphQL::ExecutionError => ex_err ex_err end end # Detect whether this error came while calling `.each` (before `idx` is set) or while running list *items* (after `idx` is set) error_is_non_null = idx.nil? ? is_non_null : inner_type.non_null? continue_value(list_value, owner_type, field, error_is_non_null, ast_node, result_name, selection_result) else raise "Invariant: Unhandled type kind #{current_type.kind} (#{current_type})" end end |
#continue_value(value, parent_type, field, is_non_null, ast_node, result_name, selection_result) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
rubocop:disable Metrics/ParameterLists
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 469 def continue_value(value, parent_type, field, is_non_null, ast_node, result_name, selection_result) # rubocop:disable Metrics/ParameterLists case value when nil if is_non_null set_result(selection_result, result_name, nil, false, is_non_null) do # This block is called if `result_name` is not dead. (Maybe a previous invalid nil caused it be marked dead.) err = parent_type::InvalidNullError.new(parent_type, field, value) schema.type_error(err, context) end else set_result(selection_result, result_name, nil, false, is_non_null) end HALT when GraphQL::Error # Handle these cases inside a single `when` # to avoid the overhead of checking three different classes # every time. if value.is_a?(GraphQL::ExecutionError) if selection_result.nil? || !dead_result?(selection_result) value.path ||= current_path value.ast_node ||= ast_node context.errors << value if selection_result set_result(selection_result, result_name, nil, false, is_non_null) end end HALT elsif value.is_a?(GraphQL::UnauthorizedFieldError) value.field ||= field # this hook might raise & crash, or it might return # a replacement value next_value = begin schema.(value) rescue GraphQL::ExecutionError => err err end continue_value(next_value, parent_type, field, is_non_null, ast_node, result_name, selection_result) elsif value.is_a?(GraphQL::UnauthorizedError) # this hook might raise & crash, or it might return # a replacement value next_value = begin schema.(value) rescue GraphQL::ExecutionError => err err end continue_value(next_value, parent_type, field, is_non_null, ast_node, result_name, selection_result) elsif GraphQL::Execution::SKIP == value # It's possible a lazy was already written here case selection_result when GraphQLResultHash selection_result.delete(result_name) when GraphQLResultArray selection_result.graphql_skip_at(result_name) when nil # this can happen with directives else raise "Invariant: unexpected result class #{selection_result.class} (#{selection_result.inspect})" end HALT else # What could this actually _be_? Anyhow, # preserve the default behavior of doing nothing with it. value end when Array # It's an array full of execution errors; add them all. if value.any? && value.all? { |v| v.is_a?(GraphQL::ExecutionError) } list_type_at_all = (field && (field.type.list?)) if selection_result.nil? || !dead_result?(selection_result) value.each_with_index do |error, index| error.ast_node ||= ast_node error.path ||= current_path + (list_type_at_all ? [index] : []) context.errors << error end if selection_result if list_type_at_all result_without_errors = value.map { |v| v.is_a?(GraphQL::ExecutionError) ? nil : v } set_result(selection_result, result_name, result_without_errors, false, is_non_null) else set_result(selection_result, result_name, nil, false, is_non_null) end end end HALT else value end when GraphQL::Execution::Interpreter::RawValue # Write raw value directly to the response without resolving nested objects set_result(selection_result, result_name, value.resolve, false, is_non_null) HALT else value end end |
#current_path ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 457 def current_path st = get_current_runtime_state result = st.current_result path = result && result.path if path && (rn = st.current_result_name) path = path.dup path.push(rn) end path end |
#dead_result?(selection_result) ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 410 def dead_result?(selection_result) selection_result.graphql_dead # || ((parent = selection_result.graphql_parent) && parent.graphql_dead) end |
#delete_all_interpreter_context ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 862 def delete_all_interpreter_context per_query_state = Thread.current[:__graphql_runtime_info] if per_query_state per_query_state.delete(@query) if per_query_state.size == 0 Thread.current[:__graphql_runtime_info] = nil end end nil end |
#directives_include?(node, graphql_object, parent_type) ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Check Schema::Directive.include? for each directive that's present
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 760 def directives_include?(node, graphql_object, parent_type) node.directives.each do |dir_node| dir_defn = @schema_directives.fetch(dir_node.name) args = arguments(graphql_object, dir_defn, dir_node) if !dir_defn.include?(graphql_object, args, context) return false end end true end |
#evaluate_selection(result_name, field_ast_nodes_or_ast_node, owner_object, owner_type, is_eager_field, selections_result, parent_object, runtime_state) ⇒ void
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
This method returns an undefined value.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 255 def evaluate_selection(result_name, field_ast_nodes_or_ast_node, owner_object, owner_type, is_eager_field, selections_result, parent_object, runtime_state) # rubocop:disable Metrics/ParameterLists return if dead_result?(selections_result) # As a performance optimization, the hash key will be a `Node` if # there's only one selection of the field. But if there are multiple # selections of the field, it will be an Array of nodes if field_ast_nodes_or_ast_node.is_a?(Array) field_ast_nodes = field_ast_nodes_or_ast_node ast_node = field_ast_nodes.first else field_ast_nodes = nil ast_node = field_ast_nodes_or_ast_node end field_name = ast_node.name field_defn = query.warden.get_field(owner_type, field_name) # Set this before calling `run_with_directives`, so that the directive can have the latest path runtime_state.current_field = field_defn runtime_state.current_result = selections_result runtime_state.current_result_name = result_name if field_defn.dynamic_introspection owner_object = field_defn.owner.wrap(owner_object, context) end return_type = field_defn.type if !field_defn.any_arguments? resolved_arguments = GraphQL::Execution::Interpreter::Arguments::EMPTY if field_defn.extras.size == 0 evaluate_selection_with_resolved_keyword_args( NO_ARGS, resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, owner_object, is_eager_field, result_name, selections_result, parent_object, return_type, return_type.non_null?, runtime_state ) else evaluate_selection_with_args(resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, owner_object, is_eager_field, result_name, selections_result, parent_object, return_type, runtime_state) end else @query.arguments_cache.dataload_for(ast_node, field_defn, owner_object) do |resolved_arguments| runtime_state = get_current_runtime_state # This might be in a different fiber evaluate_selection_with_args(resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, owner_object, is_eager_field, result_name, selections_result, parent_object, return_type, runtime_state) end end end |
#evaluate_selection_with_args(arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, runtime_state) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
rubocop:disable Metrics/ParameterLists
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 297 def evaluate_selection_with_args(arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, runtime_state) # rubocop:disable Metrics/ParameterLists after_lazy(arguments, field: field_defn, ast_node: ast_node, owner_object: object, arguments: arguments, result_name: result_name, result: selection_result, runtime_state: runtime_state) do |resolved_arguments, runtime_state| return_type_non_null = return_type.non_null? if resolved_arguments.is_a?(GraphQL::ExecutionError) || resolved_arguments.is_a?(GraphQL::UnauthorizedError) continue_value(resolved_arguments, owner_type, field_defn, return_type_non_null, ast_node, result_name, selection_result) next end kwarg_arguments = if field_defn.extras.empty? if resolved_arguments.empty? # We can avoid allocating the `{ Symbol => Object }` hash in this case NO_ARGS else resolved_arguments.keyword_arguments end else # Bundle up the extras, then make a new arguments instance # that includes the extras, too. extra_args = {} field_defn.extras.each do |extra| case extra when :ast_node extra_args[:ast_node] = ast_node when :execution_errors extra_args[:execution_errors] = ExecutionErrors.new(context, ast_node, current_path) when :path extra_args[:path] = current_path when :lookahead if !field_ast_nodes field_ast_nodes = [ast_node] end extra_args[:lookahead] = Execution::Lookahead.new( query: query, ast_nodes: field_ast_nodes, field: field_defn, ) when :argument_details # Use this flag to tell Interpreter::Arguments to add itself # to the keyword args hash _before_ freezing everything. extra_args[:argument_details] = :__arguments_add_self when :parent extra_args[:parent] = parent_object else extra_args[extra] = field_defn.fetch_extra(extra, context) end end if extra_args.any? resolved_arguments = resolved_arguments.merge_extras(extra_args) end resolved_arguments.keyword_arguments end evaluate_selection_with_resolved_keyword_args(kwarg_arguments, resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, return_type_non_null, runtime_state) end end |
#evaluate_selection_with_resolved_keyword_args(kwarg_arguments, resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, return_type_non_null, runtime_state) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
rubocop:disable Metrics/ParameterLists
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 354 def evaluate_selection_with_resolved_keyword_args(kwarg_arguments, resolved_arguments, field_defn, ast_node, field_ast_nodes, owner_type, object, is_eager_field, result_name, selection_result, parent_object, return_type, return_type_non_null, runtime_state) # rubocop:disable Metrics/ParameterLists runtime_state.current_field = field_defn runtime_state.current_object = object runtime_state.current_arguments = resolved_arguments runtime_state.current_result_name = result_name runtime_state.current_result = selection_result # Optimize for the case that field is selected only once if field_ast_nodes.nil? || field_ast_nodes.size == 1 next_selections = ast_node.selections directives = ast_node.directives else next_selections = [] directives = [] field_ast_nodes.each { |f| next_selections.concat(f.selections) directives.concat(f.directives) } end field_result = call_method_on_directives(:resolve, object, directives) do # Actually call the field resolver and capture the result app_result = begin @current_trace.execute_field(field: field_defn, ast_node: ast_node, query: query, object: object, arguments: kwarg_arguments) do field_defn.resolve(object, kwarg_arguments, context) end rescue GraphQL::ExecutionError => err err rescue StandardError => err begin query.handle_or_reraise(err) rescue GraphQL::ExecutionError => ex_err ex_err end end after_lazy(app_result, field: field_defn, ast_node: ast_node, owner_object: object, arguments: resolved_arguments, result_name: result_name, result: selection_result, runtime_state: runtime_state) do |inner_result, runtime_state| continue_value = continue_value(inner_result, owner_type, field_defn, return_type_non_null, ast_node, result_name, selection_result) if HALT != continue_value was_scoped = runtime_state. runtime_state. = nil continue_field(continue_value, owner_type, field_defn, return_type, ast_node, next_selections, false, object, resolved_arguments, result_name, selection_result, was_scoped, runtime_state) end end end # If this field is a root mutation field, immediately resolve # all of its child fields before moving on to the next root mutation field. # (Subselections of this mutation will still be resolved level-by-level.) if is_eager_field Interpreter::Resolve.resolve_all([field_result], @dataloader) else # Return this from `after_lazy` because it might be another lazy that needs to be resolved field_result end end |
#evaluate_selections(owner_object, owner_type, is_eager_selection, gathered_selections, selections_result, target_result, parent_object, runtime_state) ⇒ void
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
This method returns an undefined value.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 227 def evaluate_selections(owner_object, owner_type, is_eager_selection, gathered_selections, selections_result, target_result, parent_object, runtime_state) # rubocop:disable Metrics/ParameterLists finished_jobs = 0 enqueued_jobs = gathered_selections.size gathered_selections.each do |result_name, field_ast_nodes_or_ast_node| @dataloader.append_job { runtime_state = get_current_runtime_state evaluate_selection( result_name, field_ast_nodes_or_ast_node, owner_object, owner_type, is_eager_selection, selections_result, parent_object, runtime_state ) finished_jobs += 1 if target_result && finished_jobs == enqueued_jobs selections_result.merge_into(target_result) end } # Field resolution may pause the fiber, # so it wouldn't get to the `Resolve` call that happens below. # So instead trigger a run from this outer context. if is_eager_selection @dataloader.clear_cache @dataloader.run @dataloader.clear_cache end end selections_result end |
#final_result ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 64 def final_result @response && @response.graphql_result_data end |
#gather_selections(owner_object, owner_type, ast_node_for_caching, selections, selections_to_run = nil, selections_by_name = nil) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 146 def gather_selections(owner_object, owner_type, ast_node_for_caching, selections, selections_to_run = nil, selections_by_name = nil) if ast_node_for_caching && (cached_selections = @gathered_selections_cache[ast_node_for_caching][owner_type]) return cached_selections end selections_by_name ||= {} # allocate this default here so we check the cache first should_cache = true selections.each do |node| # Skip gathering this if the directive says so if !directives_include?(node, owner_object, owner_type) should_cache = false next end if node.is_a?(GraphQL::Language::Nodes::Field) response_key = node.alias || node.name selections = selections_by_name[response_key] # if there was already a selection of this field, # use an array to hold all selections, # otherise, use the single node to represent the selection if selections # This field was already selected at least once, # add this node to the list of selections s = Array(selections) s << node selections_by_name[response_key] = s else # No selection was found for this field yet selections_by_name[response_key] = node end else # This is an InlineFragment or a FragmentSpread if @runtime_directive_names.any? && node.directives.any? { |d| @runtime_directive_names.include?(d.name) } next_selections = {} next_selections[:graphql_directives] = node.directives should_cache = false if selections_to_run selections_to_run << next_selections else selections_to_run = [] selections_to_run << selections_by_name selections_to_run << next_selections end else next_selections = selections_by_name end case node when GraphQL::Language::Nodes::InlineFragment if node.type type_defn = schema.get_type(node.type.name, context) if query.warden.possible_types(type_defn).include?(owner_type) gather_selections(owner_object, owner_type, nil, node.selections, selections_to_run, next_selections) end else # it's an untyped fragment, definitely continue gather_selections(owner_object, owner_type, nil, node.selections, selections_to_run, next_selections) end when GraphQL::Language::Nodes::FragmentSpread fragment_def = query.fragments[node.name] type_defn = query.get_type(fragment_def.type.name) if query.warden.possible_types(type_defn).include?(owner_type) gather_selections(owner_object, owner_type, nil, fragment_def.selections, selections_to_run, next_selections) end else raise "Invariant: unexpected selection class: #{node.class}" end end end result = selections_to_run || selections_by_name if should_cache @gathered_selections_cache[ast_node_for_caching][owner_type] = result end result end |
#get_current_runtime_state ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 771 def get_current_runtime_state current_state = Thread.current[:__graphql_runtime_info] ||= begin per_query_state = {} per_query_state.compare_by_identity per_query_state end current_state[@query] ||= CurrentState.new end |
#inspect ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 68 def inspect "#<#{self.class.name} response=#{@response.inspect}>" end |
#lazy?(object) ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 889 def lazy?(object) obj_class = object.class is_lazy = @lazy_cache[obj_class] if is_lazy.nil? is_lazy = @lazy_cache[obj_class] = @schema.lazy?(object) end is_lazy end |
#minimal_after_lazy(value, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 781 def minimal_after_lazy(value, &block) if lazy?(value) GraphQL::Execution::Lazy.new do result = @schema.sync_lazy(value) # The returned result might also be lazy, so check it, too minimal_after_lazy(result, &block) end else yield(value) end end |
#resolve_list_item(inner_value, inner_type, inner_type_non_null, ast_node, field, owner_object, arguments, this_idx, response_list, next_selections, owner_type, was_scoped, runtime_state) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
rubocop:disable Metrics/ParameterLists
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 713 def resolve_list_item(inner_value, inner_type, inner_type_non_null, ast_node, field, owner_object, arguments, this_idx, response_list, next_selections, owner_type, was_scoped, runtime_state) # rubocop:disable Metrics/ParameterLists runtime_state.current_result_name = this_idx runtime_state.current_result = response_list call_method_on_directives(:resolve_each, owner_object, ast_node.directives) do # This will update `response_list` with the lazy after_lazy(inner_value, ast_node: ast_node, field: field, owner_object: owner_object, arguments: arguments, result_name: this_idx, result: response_list, runtime_state: runtime_state) do |inner_inner_value, runtime_state| continue_value = continue_value(inner_inner_value, owner_type, field, inner_type_non_null, ast_node, this_idx, response_list) if HALT != continue_value continue_field(continue_value, owner_type, field, inner_type, ast_node, next_selections, false, owner_object, arguments, this_idx, response_list, was_scoped, runtime_state) end end end end |
#resolve_type(type, value) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 873 def resolve_type(type, value) resolved_type, resolved_value = @current_trace.resolve_type(query: query, type: type, object: value) do query.resolve_type(type, value) end if lazy?(resolved_type) GraphQL::Execution::Lazy.new do @current_trace.resolve_type_lazy(query: query, type: type, object: value) do schema.sync_lazy(resolved_type) end end else [resolved_type, resolved_value] end end |
#run_directive(method_name, object, directives, idx, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 732 def run_directive(method_name, object, directives, idx, &block) dir_node = directives[idx] if !dir_node yield else dir_defn = @schema_directives.fetch(dir_node.name) raw_dir_args = arguments(nil, dir_defn, dir_node) dir_args = continue_value( raw_dir_args, # value dir_defn, # parent_type nil, # field false, # is_non_null dir_node, # ast_node nil, # result_name nil, # selection_result ) if dir_args == HALT nil else dir_defn.public_send(method_name, object, dir_args, context) do run_directive(method_name, object, directives, idx + 1, &block) end end end end |
#run_eager ⇒ void
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
This method returns an undefined value.
This begins the execution. Some deferred work might be stored up in lazies.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 85 def run_eager root_operation = query.selected_operation root_op_type = root_operation.operation_type || "query" root_type = schema.root_type_for_operation(root_op_type) st = get_current_runtime_state st.current_object = query.root_value st.current_result = @response runtime_object = root_type.wrap(query.root_value, context) runtime_object = schema.sync_lazy(runtime_object) if runtime_object.nil? # Root .authorized? returned false. @response = nil else call_method_on_directives(:resolve, runtime_object, root_operation.directives) do # execute query level directives gathered_selections = gather_selections(runtime_object, root_type, nil, root_operation.selections) # This is kind of a hack -- `gathered_selections` is an Array if any of the selections # require isolation during execution (because of runtime directives). In that case, # make a new, isolated result hash for writing the result into. (That isolated response # is eventually merged back into the main response) # # Otherwise, `gathered_selections` is a hash of selections which can be # directly evaluated and the results can be written right into the main response hash. tap_or_each(gathered_selections) do |selections, is_selection_array| if is_selection_array selection_response = GraphQLResultHash.new(nil, nil, false) final_response = @response else selection_response = @response final_response = nil end @dataloader.append_job { st = get_current_runtime_state st.current_object = query.root_value st.current_result_name = nil st.current_result = selection_response # This is a less-frequent case; use a fast check since it's often not there. if (directives = selections[:graphql_directives]) selections.delete(:graphql_directives) end call_method_on_directives(:resolve, runtime_object, directives) do evaluate_selections( runtime_object, root_type, root_op_type == "mutation", selections, selection_response, final_response, nil, st, ) end } end end end nil end |
#set_graphql_dead(selection_result) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Mark this node and any already-registered children as dead, so that it accepts no more writes.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 444 def set_graphql_dead(selection_result) case selection_result when GraphQLResultArray selection_result.graphql_dead = true selection_result.values.each { |v| set_graphql_dead(v) } when GraphQLResultHash selection_result.graphql_dead = true selection_result.each { |k, v| set_graphql_dead(v) } else # It's a scalar, no way to mark it dead. end end |
#set_result(selection_result, result_name, value, is_child_result, is_non_null) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 414 def set_result(selection_result, result_name, value, is_child_result, is_non_null) if !dead_result?(selection_result) if value.nil? && is_non_null # This is an invalid nil that should be propagated # One caller of this method passes a block, # namely when application code returns a `nil` to GraphQL and it doesn't belong there. # The other possibility for reaching here is when a field returns an ExecutionError, so we write # `nil` to the response, not knowing whether it's an invalid `nil` or not. # (And in that case, we don't have to call the schema's handler, since it's not a bug in the application.) # TODO the code is trying to tell me something. yield if block_given? parent = selection_result.graphql_parent if parent.nil? # This is a top-level result hash @response = nil else name_in_parent = selection_result.graphql_result_name is_non_null_in_parent = selection_result.graphql_is_non_null_in_parent set_result(parent, name_in_parent, nil, false, is_non_null_in_parent) set_graphql_dead(selection_result) end elsif is_child_result selection_result.set_child_result(result_name, value) else selection_result.set_leaf(result_name, value) end end end |
#tap_or_each(obj_or_array) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/graphql/execution/interpreter/runtime.rb', line 72 def tap_or_each(obj_or_array) if obj_or_array.is_a?(Array) obj_or_array.each do |item| yield(item, true) end else yield(obj_or_array, false) end end |