Bug #5923

closed

YAML serialization of binary string broken with psych engine

Added by nwitmer (Nathan Witmer) about 12 years ago. Updated about 12 years ago.

Status:

Closed

Assignee:

Target version:

ruby -v:

ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]

Backport:

[ruby-core:42215]

Description

Using the psych engine in 1.9.3, some binary strings cannot be serialized. Instead, they result in a runtime error:

/Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:24:in `scalar': expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS (RuntimeError)

To reproduce:

$ cat a.rb

encoding: UTF-8¶

require "yaml"

binary = "\xC37\xA2\xC0=["\xE7\x06\x19\xAA1\x95\x12\xA1z"
binary.force_encoding "ascii-8bit" if binary.respond_to? :force_encoding

puts "\n*** ruby #{RUBY_VERSION}"

test for ruby 1.9, both yaml engines:¶

if YAML.const_defined?(:ENGINE)

puts "syck engine:"
YAML::ENGINE.yamler = "syck"
puts binary.to_yaml

puts "psych engine:"
YAML::ENGINE.yamler = "psych"
puts binary.to_yaml

else

otherwise, just dump it:¶

puts binary.to_yaml

end

$ rvm 1.9.3-p0,1.8.7-p352 do ruby a.rb

*** ruby 1.9.3
syck engine:
--- "\xC37\xA2\xC0=["\xE7\x06\x19\xAA1\x95\x12\xA1z"
psych engine:
/Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:24:in scalar': expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS (RuntimeError) from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:24:in visit_Psych_Nodes_Scalar'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in visit' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in accept'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:19:in block in visit_Psych_Nodes_Document' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:19:in each'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:19:in visit_Psych_Nodes_Document' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in visit'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in accept' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:13:in block in visit_Psych_Nodes_Stream'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:13:in each' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/emitter.rb:13:in visit_Psych_Nodes_Stream'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in visit' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in accept'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/nodes/node.rb:46:in to_yaml' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych.rb:190:in dump'
from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/core_ext.rb:14:in psych_to_yaml' from /Users/nathan/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/syck/rubytypes.rb:170:in to_yaml'
from a.rb:19:in `'