Module: Dhall::ExpressionVisitor

Defined in:
lib/dhall/normalize.rb

Constant Summary collapse

ExpressionHash = 
Util::HashOf.new(
	ValueSemantics::Anything,
	ValueSemantics::Either.new([Expression, nil])
)

Class Method Summary collapse

Class Method Details

.new(&block) ⇒ Object 



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# File 'lib/dhall/normalize.rb', line 14

def self.new(&block)
	Visitor.new(
		Expression                    => block,
		Util::ArrayOf.new(Expression) => lambda do |x|
			x.map(&block)
		end,
		ExpressionHash                => lambda do |x|
			Hash[x.map { |k, v| [k, v.nil? ? v : block[v]] }.sort]
		end
	)
end