class GraphQL::StaticValidation::ValidationContext

It holds a list of errors which each validator may add to.
It provides access to the schema & fragments which validators may read from.
It exposes a {GraphQL::Language::Visitor} where validators may add hooks. ({Language::Visitor#visit} is called in {Validator#validate})
The validation context gets passed to each validator.

def initialize(query, visitor_class, max_errors) 

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 on_dependency_resolve(&handler) 

def on_dependency_resolve(&handler)
  @on_dependency_resolve_handlers << handler
end

def schema_directives 

def schema_directives
  @schema_directives ||= schema.directives
end

def too_many_errors? 

def too_many_errors?
  @errors.length >= @max_errors
end

def validate_literal(ast_value, type) 

def validate_literal(ast_value, type)
  @literal_validator.validate(ast_value, type)
end