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Contents
module Jsonify
# Provides a set of functions for creating JsonValues from Ruby objects.
module Generate
class << self
# Coerces the given value into a JsonValue.
#
# The coercion rules are based on the type (class) of the value as follows:
# - +JsonValue+ => no coercion
# - +String+ => JsonString ( \"foo\" )
# - +Numeric+ => JsonNumber ( 1 )
# - +TrueClass+ => JsonTrue ( true )
# - +FalseClass+=> JsonFalse ( false )
# - +NilClass+ => JsonNull ( null )
# - +Array+ => JsonArray ( [1,2,3] )
# - +Hash+ => JsonObject ( <code>{"\a":1,\"b\":2}</code> )
#
# @param val value to coerce into a JsonValue.
def value(val)
case val
when JsonValue; val
when String; string_value val
when Numeric; number_value val
when TrueClass; true_value
when FalseClass; false_value
when NilClass; null_value
when Array; array_value val
when Hash; object_value val
else string_value val
end
end
def pair_value(key,val=nil)
JsonPair.new(key,value(val))
end
def string_value(val)
JsonString.new(val)
end
def object_value(hash)
json_object = JsonObject.new
hash.each { |key,val| json_object.add( pair_value(key, val) ) }
json_object
end
def array_value(vals)
JsonArray.new(Array(vals).map{ |v| value v })
end
def number_value(val)
JsonNumber.new(val)
end
def true_value
@json_true ||= JsonTrue.new # memoize
end
def false_value
@json_false ||= JsonFalse.new # memoize
end
def null_value
@json_null ||= JsonNull.new # memoize
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems