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# frozen_string_literal: true
module GraphQL
module StaticValidation
# The validation context gets passed to each validator.
#
# It exposes a {GraphQL::Language::Visitor} where validators may add hooks. ({Language::Visitor#visit} is called in {Validator#validate})
#
# It provides access to the schema & fragments which validators may read from.
#
# It holds a list of errors which each validator may add to.
class ValidationContext
extend Forwardable
attr_reader :query, :errors, :visitor,
:on_dependency_resolve_handlers,
:max_errors, :warden, :schema
def_delegators :@query, :document, :fragments, :operations
def initialize(query, visitor_class, max_errors)
@query = query
@warden = query.warden
@schema = query.schema
@literal_validator = LiteralValidator.new(context: query.context)
@errors = []
@max_errors = max_errors || Float::INFINITY
@on_dependency_resolve_handlers = []
@visitor = visitor_class.new(document, self)
end
def_delegators :@visitor,
:path, :type_definition, :field_definition, :argument_definition,
:parent_type_definition, :directive_definition, :object_types, :dependencies
def on_dependency_resolve(&handler)
@on_dependency_resolve_handlers << handler
end
def validate_literal(ast_value, type)
@literal_validator.validate(ast_value, type)
end
def too_many_errors?
@errors.length >= @max_errors
end
def schema_directives
@schema_directives ||= schema.directives
end
end
end
end
Version data entries
35 entries across 35 versions & 1 rubygems