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require 'myrrha' module Myrrha # These are all classes for which using inspect is safe for to_ruby_literal TO_RUBY_THROUGH_INSPECT = [ NilClass, TrueClass, FalseClass, Fixnum, Bignum, Float, String, Symbol, Class, Module, Regexp ] # Defines basic coercions for implementing to_ruby_literal ToRubyLiteral = coercions do |r| r.main_target_domain = :to_ruby_literal r.upon(Object) do |s,t| s.to_ruby_literal{ throw :nextrule } end # On safe .inspect safe = lambda{|x| TO_RUBY_THROUGH_INSPECT.include?(x.class)} r.coercion(safe) do |s,t| s.inspect end # Best-effort on Range or let it be marshalled r.coercion(Range) do |s,t| (TO_RUBY_THROUGH_INSPECT.include?(s.first.class) && TO_RUBY_THROUGH_INSPECT.include?(s.last.class)) ? s.inspect : throw(:nextrule) end # Be friendly on array r.coercion(Array) do |s,t| "[" + s.collect{|v| r.apply(v)}.join(', ') + "]" end # As well as on Hash r.coercion(Hash) do |s,t| "{" + s.collect{|k,v| r.apply(k) + " => " + r.apply(v) }.join(', ') + "}" end # Use Marshal by default r.fallback(Object) do |s,t| "Marshal.load(#{Marshal.dump(s).inspect})" end end # # Converts `value` to a ruby literal # # @param [Object] value any ruby value # @return [String] a representation `s` of `value` such that # <code>Kernel.eval(s) == value</code> is true # def self.to_ruby_literal(value = self) block_given? ? yield : ToRubyLiteral.apply(value) end end # module Myrrha class Object # # Converts self to a ruby literal # # @return [String] a representation `s` of self such that # <code>Kernel.eval(s) == value</code> is true # def to_ruby_literal block_given? ? yield : Myrrha.to_ruby_literal(self) end end if Myrrha.core_ext?
Version data entries
5 entries across 5 versions & 1 rubygems