Class: JRuby::ScalaSupport::Map::Mutable

Inherits:

Object

• Object
• JRuby::ScalaSupport::Map::Mutable

Includes:

Common

Defined in:

lib/jruby/scala_support.rb

Class Method Summary

• .[](*args) ⇒ Object
• .new(default_value = nil, &default_block) ⇒ Object
• .previous_new ⇒ Object

Instance Method Summary

• #[]=(key, value) ⇒ Object

Methods included from Common

#[], #as_json, #each, #eql?, #has_key?, #key, #keys, #to_s, #value?, #values

Class Method Details

.[](*args) ⇒ Object

# File 'lib/jruby/scala_support.rb', line 185

def [](*args)
  hash = new
  if args.size == 1
    obj = args.first
    case obj
    when Array, Hash then obj.each {|k,v| hash[k] = v}
    else
      raise "Don't yet know what to do with a #{obj.inspect}"
    end
    return hash
  end

  return new if args.empty?

  if args.size & 1 == 1
    raise ArgumentError, "Expected an even number, got #{args.length}"
  end

  i = 0
  total = args.size

  while i < total
    hash[args[i]] = args[i+1]
    i += 2
  end

  hash
end

.new(default_value = nil, &default_block) ⇒ Object

Raises:

• (ArgumentError)

# File 'lib/jruby/scala_support.rb', line 214

def new(default_value=nil, &default_block)
  raise ArgumentError, "You can only provide either a default value or a block" if default_value && default_block
  h = scala.collection.mutable.HashMap.new
  if default_block
    h = h.with_default {|k| default_block.call(h,k) }
  end
  h = h.with_default_value(default_value) if default_value
  previous_new(h)
end

.previous_new ⇒ Object

# File 'lib/jruby/scala_support.rb', line 183

alias_method :previous_new, :new

Instance Method Details

#[]=(key, value) ⇒ Object

# File 'lib/jruby/scala_support.rb', line 225

def []=(key, value)
  @raw.update(key, value.to_scala)
end