In Files
- psych/lib/psych/visitors/to_ruby.rb
- psych/psych_to_ruby.c
Parent
Class/Module Index
- Kernel
- Module
- Object
- Psych
- Psych::BadAlias
- Psych::ClassLoader
- Psych::ClassLoader::Restricted
- Psych::Coder
- Psych::DisallowedClass
- Psych::Emitter
- Psych::Exception
- Psych::Handler
- Psych::Handler::DumperOptions
- Psych::Handlers
- Psych::Handlers::Recorder
- Psych::JSON
- Psych::JSON::Stream
- Psych::JSON::TreeBuilder
- Psych::Nodes
- Psych::Nodes::Alias
- Psych::Nodes::Document
- Psych::Nodes::Mapping
- Psych::Nodes::Node
- Psych::Nodes::Scalar
- Psych::Nodes::Sequence
- Psych::Nodes::Stream
- Psych::Omap
- Psych::Parser
- Psych::Parser::Mark
- Psych::ScalarScanner
- Psych::Set
- Psych::Stream
- Psych::Streaming
- Psych::Streaming::ClassMethods
- Psych::SyntaxError
- Psych::TreeBuilder
- Psych::Visitors
- Psych::Visitors::DepthFirst
- Psych::Visitors::Emitter
- Psych::Visitors::JSONTree
- Psych::Visitors::NoAliasRuby
- Psych::Visitors::ToRuby
- Psych::Visitors::Visitor
- Psych::Visitors::YAMLTree
- Regexp
Psych::Visitors::ToRuby
This class walks a YAML AST, converting each node to Ruby
Constants
Public Class Methods
Public Instance Methods
accept(target)
# File psych/lib/psych/visitors/to_ruby.rb, line 31 def accept target result = super return result if @domain_types.empty? || !target.tag key = target.tag.sub(/^[!\/]*/, '').sub(/(,\d+)\//, '\1:') key = "tag:#{key}" unless key =~ /^(?:tag:|x-private)/ if @domain_types.key? key value, block = @domain_types[key] return block.call value, result end result end
visit_Psych_Nodes_Alias(o)
# File psych/lib/psych/visitors/to_ruby.rb, line 318 def visit_Psych_Nodes_Alias o @st.fetch(o.anchor) { raise BadAlias, "Unknown alias: #{o.anchor}" } end
visit_Psych_Nodes_Document(o)
# File psych/lib/psych/visitors/to_ruby.rb, line 310 def visit_Psych_Nodes_Document o accept o.root end
visit_Psych_Nodes_Mapping(o)
# File psych/lib/psych/visitors/to_ruby.rb, line 158 def visit_Psych_Nodes_Mapping o if Psych.load_tags[o.tag] return revive(resolve_class(Psych.load_tags[o.tag]), o) end return revive_hash(register(o, {}), o) unless o.tag case o.tag when /^!ruby\/struct:?(.*)?$/ klass = resolve_class($1) if $1 if klass s = register(o, klass.allocate) members = {} struct_members = s.members.map { |x| class_loader.symbolize x } o.children.each_slice(2) do |k,v| member = accept(k) value = accept(v) if struct_members.include?(class_loader.symbolize(member)) s.send("#{member}=", value) else members[member.to_s.sub(/^@/, '')] = value end end init_with(s, members, o) else klass = class_loader.struct members = o.children.map { |c| accept c } h = Hash[*members] s = klass.new(*h.map { |k,v| class_loader.symbolize k }).new(*h.map { |k,v| v }) register(o, s) s end when /^!ruby\/object:?(.*)?$/ name = $1 || 'Object' if name == 'Complex' class_loader.complex h = Hash[*o.children.map { |c| accept c }] register o, Complex(h['real'], h['image']) elsif name == 'Rational' class_loader.rational h = Hash[*o.children.map { |c| accept c }] register o, Rational(h['numerator'], h['denominator']) elsif name == 'Hash' revive_hash(register(o, {}), o) else obj = revive((resolve_class(name) || class_loader.object), o) obj end when /^!(?:str|ruby\/string)(?::(.*))?$/, 'tag:yaml.org,2002:str' klass = resolve_class($1) members = {} string = nil o.children.each_slice(2) do |k,v| key = accept k value = accept v if key == 'str' if klass string = klass.allocate.replace value else string = value end register(o, string) else members[key] = value end end init_with(string, members.map { |k,v| [k.to_s.sub(/^@/, ''),v] }, o) when /^!ruby\/array:(.*)$/ klass = resolve_class($1) list = register(o, klass.allocate) members = Hash[o.children.map { |c| accept c }.each_slice(2).to_a] list.replace members['internal'] members['ivars'].each do |ivar, v| list.instance_variable_set ivar, v end list when '!ruby/range' klass = class_loader.range h = Hash[*o.children.map { |c| accept c }] register o, klass.new(h['begin'], h['end'], h['excl']) when /^!ruby\/exception:?(.*)?$/ h = Hash[*o.children.map { |c| accept c }] e = build_exception((resolve_class($1) || class_loader.exception), h.delete('message')) init_with(e, h, o) when '!set', 'tag:yaml.org,2002:set' set = class_loader.psych_set.new @st[o.anchor] = set if o.anchor o.children.each_slice(2) do |k,v| set[accept(k)] = accept(v) end set when /^!ruby\/hash-with-ivars(?::(.*))?$/ hash = $1 ? resolve_class($1).allocate : {} register o, hash o.children.each_slice(2) do |key, value| case key.value when 'elements' revive_hash hash, value when 'ivars' value.children.each_slice(2) do |k,v| hash.instance_variable_set accept(k), accept(v) end end end hash when /^!map:(.*)$/, /^!ruby\/hash:(.*)$/ revive_hash register(o, resolve_class($1).allocate), o when '!omap', 'tag:yaml.org,2002:omap' map = register(o, class_loader.psych_omap.new) o.children.each_slice(2) do |l,r| map[accept(l)] = accept r end map when /^!ruby\/marshalable:(.*)$/ name = $1 klass = resolve_class(name) obj = register(o, klass.allocate) if obj.respond_to?(:init_with) init_with(obj, revive_hash({}, o), o) elsif obj.respond_to?(:marshal_load) marshal_data = o.children.map(&method(:accept)) obj.marshal_load(marshal_data) obj else raise ArgumentError, "Cannot deserialize #{name}" end else revive_hash(register(o, {}), o) end end
visit_Psych_Nodes_Scalar(o)
# File psych/lib/psych/visitors/to_ruby.rb, line 122 def visit_Psych_Nodes_Scalar o register o, deserialize(o) end
visit_Psych_Nodes_Sequence(o)
# File psych/lib/psych/visitors/to_ruby.rb, line 126 def visit_Psych_Nodes_Sequence o if klass = resolve_class(Psych.load_tags[o.tag]) instance = klass.allocate if instance.respond_to?(:init_with) coder = Psych::Coder.new(o.tag) coder.seq = o.children.map { |c| accept c } instance.init_with coder end return instance end case o.tag when nil register_empty(o) when '!omap', 'tag:yaml.org,2002:omap' map = register(o, Psych::Omap.new) o.children.each { |a| map[accept(a.children.first)] = accept a.children.last } map when /^!(?:seq|ruby\/array):(.*)$/ klass = resolve_class($1) list = register(o, klass.allocate) o.children.each { |c| list.push accept c } list else register_empty(o) end end