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# File 'lib/graphql/query/serial_execution/value_resolution.rb', line 5
def self.resolve(parent_type, field_defn, field_type, value, irep_node, execution_context)
if value.nil? || value.is_a?(GraphQL::ExecutionError)
if field_type.kind.non_null?
raise GraphQL::InvalidNullError.new(parent_type.name, field_defn.name, value)
else
nil
end
else
case field_type.kind
when GraphQL::TypeKinds::SCALAR
field_type.coerce_result(value)
when GraphQL::TypeKinds::ENUM
field_type.coerce_result(value, execution_context.query.warden)
when GraphQL::TypeKinds::LIST
wrapped_type = field_type.of_type
result = value.each_with_index.map do |inner_value, index|
irep_node.index = index
resolve(
parent_type,
field_defn,
wrapped_type,
inner_value,
irep_node,
execution_context,
)
end
irep_node.index = nil
result
when GraphQL::TypeKinds::NON_NULL
wrapped_type = field_type.of_type
resolve(
parent_type,
field_defn,
wrapped_type,
value,
irep_node,
execution_context,
)
when GraphQL::TypeKinds::OBJECT
execution_context.strategy.selection_resolution.resolve(
value,
field_type,
irep_node,
execution_context
)
when GraphQL::TypeKinds::UNION, GraphQL::TypeKinds::INTERFACE
resolved_type = execution_context.schema.resolve_type(value, execution_context.query.context)
possible_types = execution_context.possible_types(field_type)
if !possible_types.include?(resolved_type)
raise GraphQL::UnresolvedTypeError.new(irep_node.definition_name, field_type, parent_type, resolved_type, possible_types)
else
resolve(
parent_type,
field_defn,
resolved_type,
value,
irep_node,
execution_context,
)
end
else
raise("Unknown type kind: #{field_type.kind}")
end
end
end
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