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Contents
module Aws
module Xml
class Parser
class Stack
def initialize(ref, result = nil, &unhandled_callback)
@ref = ref
@frame = self
@result = result
@unhandled_callback = unhandled_callback
end
attr_reader :frame
attr_reader :result
def start_element(name)
@frame = @frame.child_frame(name.to_s)
end
def attr(name, value)
if name.to_s == 'encoding' && value.to_s == 'base64'
@frame = BlobFrame.new(name, @frame.parent, @frame.ref)
else
start_element(name)
text(value)
end_element(name)
end
end
def text(value)
@frame.set_text(value)
end
def end_element(*args)
@frame.parent.consume_child_frame(@frame)
if @frame.parent.is_a?(FlatListFrame)
@frame = @frame.parent
@frame.parent.consume_child_frame(@frame)
end
@frame = @frame.parent
end
def error(msg, line = nil, column = nil)
raise ParsingError.new(msg, line, column)
end
def child_frame(name)
Frame.new(name, self, @ref, @result)
end
def consume_child_frame(frame)
@result = frame.result
end
# @api private
def yield_unhandled_value(path, value)
if @unhandled_callback
@unhandled_callback.call(path, value)
end
end
end
end
end
end
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