class Psych::Coder

If an object defines encode_with, then an instance of Psych::Coder will be passed to the method when the object is being serialized. The Coder automatically assumes a Psych::Nodes::Mapping is being emitted. Other objects like Sequence and Scalar may be emitted if seq= or scalar= are called, respectively.

Attributes

implicit [RW]

object [RW]

seq [R]

style [RW]

tag [RW]

type [R]

Public Class Methods

new (tag)

Source

# File ext/psych/lib/psych/coder.rb, line 13
def initialize tag
  @map      = {}
  @seq      = []
  @implicit = false
  @type     = :map
  @tag      = tag
  @style    = Psych::Nodes::Mapping::BLOCK
  @scalar   = nil
  @object   = nil
end

Public Instance Methods

[] (k)

Source

# File ext/psych/lib/psych/coder.rb, line 84
def [] k
  @type = :map
  @map[k]
end

[]= (k, v)

Source

# File ext/psych/lib/psych/coder.rb, line 78
def []= k, v
  @type = :map
  @map[k] = v
end

Also aliased as: add

add (k, v)

Alias for: []=

map (tag = @tag, style = @style) { |self| ... }

Source

# File ext/psych/lib/psych/coder.rb, line 34
def map tag = @tag, style = @style
  @tag   = tag
  @style = style
  yield self if block_given?
  @map
end

Emit a map. The coder will be yielded to the block.

map= (map)

Source

# File ext/psych/lib/psych/coder.rb, line 73
def map= map
  @type = :map
  @map  = map
end

Emit a map with value

represent_map (tag, map)

Source

# File ext/psych/lib/psych/coder.rb, line 54
def represent_map tag, map
  @tag = tag
  self.map = map
end

Emit a sequence with map and tag

represent_object (tag, obj)

Source

# File ext/psych/lib/psych/coder.rb, line 60
def represent_object tag, obj
  @tag    = tag
  @type   = :object
  @object = obj
end

Emit an arbitrary object obj and tag

represent_scalar (tag, value)

Source

# File ext/psych/lib/psych/coder.rb, line 42
def represent_scalar tag, value
  self.tag    = tag
  self.scalar = value
end

Emit a scalar with value and tag

represent_seq (tag, list)

Source

# File ext/psych/lib/psych/coder.rb, line 48
def represent_seq tag, list
  @tag = tag
  self.seq = list
end

Emit a sequence with list and tag

scalar (*args)

Source

# File ext/psych/lib/psych/coder.rb, line 24
def scalar *args
  if args.length > 0
    warn "#{caller[0]}: Coder#scalar(a,b,c) is deprecated" if $VERBOSE
    @tag, @scalar, _ = args
    @type = :scalar
  end
  @scalar
end

scalar= (value)

Source

# File ext/psych/lib/psych/coder.rb, line 67
def scalar= value
  @type   = :scalar
  @scalar = value
end

Emit a scalar with value

seq= (list)

Source

# File ext/psych/lib/psych/coder.rb, line 90
def seq= list
  @type = :seq
  @seq  = list
end

Emit a sequence of list