Module: Jsonify::Generate

Defined in:
lib/jsonify/generate.rb

Overview

Provides a set of functions for creating JsonValues from Ruby objects.

Class Method Summary collapse

Class Method Details

.array_value(vals) ⇒ Object 



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# File 'lib/jsonify/generate.rb', line 44

def array_value(vals)
  JsonArray.new(Array(vals).map{ |v| value v })
end

.object_value(hash) ⇒ Object 



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# File 'lib/jsonify/generate.rb', line 38

def object_value(hash)
  json_object = JsonObject.new
  hash.each { |key,val| json_object.add( pair_value(key, val) ) }
  json_object
end

.pair_value(key, val = nil) ⇒ Object 



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# File 'lib/jsonify/generate.rb', line 34

def pair_value(key,val=nil)
  JsonPair.new(key,value(val))
end

.value(val) ⇒ Object

Coerces the given value into a JsonValue (or subclass), String, or Number.

The coercion rules are based on the type (class) of the value as follows:

  • JsonValue => no coercion

  • String => no coercion

  • Numeric => no coercion

  • TrueClass => JsonTrue ( true )

  • FalseClass=> JsonFalse ( false )

  • NilClass => JsonNull ( null )

  • Array => JsonArray ( [1,2,3] )

  • Hash => JsonObject ( {"\a":1,\"b\":2} )

  • else => #to_s

Parameters:

  • val —

    value to coerce into a JsonValue.



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# File 'lib/jsonify/generate.rb', line 22

def value(val)
  case val
    when JsonValue, String, Numeric; val
    when TrueClass;  @json_true  ||= JsonTrue.new
    when FalseClass; @json_false ||= JsonFalse.new
    when NilClass;   @json_null  ||= JsonNull.new
    when Array; array_value val
    when Hash;  object_value val
    else val.to_s
  end
end