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# frozen_string_literal: true
module HTTP2
# Stream, connection, and compressor exceptions.
module Error
@types = {}
class << self
attr_reader :types
end
class Error < StandardError
def self.inherited(klass)
super
type = klass.name or return
type = type.split("::").last or return
type = type.gsub(/([^\^])([A-Z])/, '\1_\2').downcase.to_sym
HTTP2::Error.types[type] = klass
end
end
# Raised if connection header is missing or invalid indicating that
# this is an invalid HTTP 2.0 request - no frames are emitted and the
# connection must be aborted.
class HandshakeError < Error; end
# Raised by stream or connection handlers, results in GOAWAY frame
# which signals termination of the current connection. You *cannot*
# recover from this exception, or any exceptions subclassed from it.
class ProtocolError < Error; end
# Raised on any header encoding / decoding exception.
#
# @see ProtocolError
class CompressionError < ProtocolError; end
# Raised on invalid flow control frame or command.
#
# @see ProtocolError
class FlowControlError < ProtocolError; end
# Raised on invalid stream processing: invalid frame type received or
# sent, or invalid command issued.
class InternalError < ProtocolError; end
#
# -- Recoverable errors -------------------------------------------------
#
# Raised if stream has been closed and new frames cannot be sent.
class StreamClosed < Error; end
# Raised if connection has been closed (or draining) and new stream
# cannot be opened.
class ConnectionClosed < Error; end
# Raised if stream limit has been reached and new stream cannot be opened.
class StreamLimitExceeded < Error; end
class FrameSizeError < Error; end
@types.freeze
end
end
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