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# frozen_string_literal: false
module Psych
module Visitors
class Emitter < Psych::Visitors::Visitor
def initialize io, options = {}
opts = [:indentation, :canonical, :line_width].find_all { |opt|
options.key?(opt)
}
if opts.empty?
@handler = Psych::Emitter.new io
else
du = Handler::DumperOptions.new
opts.each { |option| du.send :"#{option}=", options[option] }
@handler = Psych::Emitter.new io, du
end
end
def visit_Psych_Nodes_Stream o
@handler.start_stream o.encoding
o.children.each { |c| accept c }
@handler.end_stream
end
def visit_Psych_Nodes_Document o
@handler.start_document o.version, o.tag_directives, o.implicit
o.children.each { |c| accept c }
@handler.end_document o.implicit_end
end
def visit_Psych_Nodes_Scalar o
@handler.scalar o.value, o.anchor, o.tag, o.plain, o.quoted, o.style
end
def visit_Psych_Nodes_Sequence o
@handler.start_sequence o.anchor, o.tag, o.implicit, o.style
o.children.each { |c| accept c }
@handler.end_sequence
end
def visit_Psych_Nodes_Mapping o
@handler.start_mapping o.anchor, o.tag, o.implicit, o.style
o.children.each { |c| accept c }
@handler.end_mapping
end
def visit_Psych_Nodes_Alias o
@handler.alias o.anchor
end
end
end
end