Finish 2.1.6

Gemfile

@@ -20,6 +20,7 @@ group :development, :test do
   gem 'coveralls',  require: false, platform: :mri
   gem 'psych',      platforms: [:mri, :rbx]
   gem 'benchmark-ips'
+  gem 'rake'
 end
 
 group :debug do

Rakefile

@@ -37,14 +37,14 @@ file "etc/manifests.nt" do
   require 'json/ld'
   require 'rdf/ntriples'
   graph = RDF::Graph.new do |g|
-    %w( http://json-ld.org/test-suite/tests/compact-manifest.jsonld
-        http://json-ld.org/test-suite/tests/error-manifest.jsonld
-        http://json-ld.org/test-suite/tests/expand-manifest.jsonld
-        http://json-ld.org/test-suite/tests/flatten-manifest.jsonld
-        http://json-ld.org/test-suite/tests/frame-manifest.jsonld
-        http://json-ld.org/test-suite/tests/fromRdf-manifest.jsonld
-        http://json-ld.org/test-suite/tests/remote-doc-manifest.jsonld
-        http://json-ld.org/test-suite/tests/toRdf-manifest.jsonld
+    %w( https://json-ld.org/test-suite/tests/compact-manifest.jsonld
+        https://json-ld.org/test-suite/tests/error-manifest.jsonld
+        https://json-ld.org/test-suite/tests/expand-manifest.jsonld
+        https://json-ld.org/test-suite/tests/flatten-manifest.jsonld
+        https://json-ld.org/test-suite/tests/frame-manifest.jsonld
+        https://json-ld.org/test-suite/tests/fromRdf-manifest.jsonld
+        https://json-ld.org/test-suite/tests/remote-doc-manifest.jsonld
+        https://json-ld.org/test-suite/tests/toRdf-manifest.jsonld
     ).each do |man|
       puts "load #{man}"
       g.load(man, unique_bnodes: true)

VERSION

@@ -1 +1 @@
-2.1.5
+2.1.6

example-files/issue-526.jsonld

@@ -0,0 +1,8 @@
+{
+  "@context": {
+    "@vocab"  : "http://vocab.getty.edu/",
+    "a"     : "http://vocab.getty.edu/aaaaaaaaaat/"
+  }, 
+  "@id" : "http://vocab.getty.edu/aaaaaaaaaat/5001065997",
+  "@type": "http://vocab.getty.edu/aaaaaaaaaat/datatype"
+}

example-files/toRdf-manifest.jsonld

@@ -1,10 +1,10 @@
 {
-  "@context": "http://json-ld.org/test-suite/context.jsonld",
+  "@context": "https://json-ld.org/test-suite/context.jsonld",
   "@id": "",
   "@type": "jld:Manifest",
   "rdfs:comment": "JSON-LD to RDF tests generate N-Quads Output",
   "name": "toRdf",
-  "baseIri": "http://json-ld.org/test-suite/tests/",
+  "baseIri": "https://json-ld.org/test-suite/tests/",
   "sequence": [
     {
       "@type": ["jld:PositiveEvaluationTest", "jld:ToRDFTest"],

json-ld.gemspec

@@ -10,7 +10,6 @@ Gem::Specification.new do |gem|
   gem.license               = 'Unlicense'
   gem.summary               = "JSON-LD reader/writer for Ruby."
   gem.description           = "JSON::LD parses and serializes JSON-LD into RDF and implements expansion, compaction and framing API interfaces."
-  gem.rubyforge_project     = 'json-ld'
 
   gem.authors               = ['Gregg Kellogg']
   gem.email                 = 'public-linked-json@w3.org'
@@ -27,7 +26,7 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.2.2'
   gem.requirements          = []
-  gem.add_runtime_dependency     'rdf',             '~> 2.2'
+  gem.add_runtime_dependency     'rdf',             '~> 2.2', '>= 2.2.8'
   gem.add_runtime_dependency     'multi_json',      '~> 1.12'
   gem.add_development_dependency 'linkeddata',      '~> 2.2'
   gem.add_development_dependency 'jsonlint',        '~> 0.2'  unless RUBY_ENGINE == "jruby"

lib/json/ld.rb

@@ -3,6 +3,7 @@
 $:.unshift(File.expand_path("../ld", __FILE__))
 require 'rdf' # @see http://rubygems.org/gems/rdf
 require 'multi_json'
+require 'set'
 
 module JSON
   ##
@@ -41,7 +42,7 @@ module LD
       RDF.type.to_s => {"@type" => "@id"}
     }.freeze
 
-    KEYWORDS = %w(
+    KEYWORDS = Set.new(%w(
       @base
       @container
       @context
@@ -62,7 +63,7 @@ module LD
       @value
       @version
       @vocab
-    ).freeze
+    )).freeze
 
     # Regexp matching an NCName.
     NC_REGEXP = Regexp.new(

lib/json/ld/api.rb

@@ -174,7 +174,7 @@ def self.expand(input, options = {}, &block)
       end
 
       # If, after the algorithm outlined above is run, the resulting element is an JSON object with just a @graph property, element is set to the value of @graph's value.
-      result = result['@graph'] if result.is_a?(Hash) && result.keys == %w(@graph)
+      result = result['@graph'] if result.is_a?(Hash) && result.length == 1 && result.key?('@graph')
 
       # Finally, if element is a JSON object, it is wrapped into an array.
       result = [result].compact unless result.is_a?(Array)
@@ -277,7 +277,9 @@ def self.flatten(input, context, options = {})
         create_node_map(value, graph_maps)
 
         default_graph = graph_maps['@default']
-        graph_maps.keys.kw_sort.reject {|k| k == '@default'}.each do |graph_name|
+        graph_maps.keys.kw_sort.each do |graph_name|
+          next if graph_name == '@default'
+
           graph = graph_maps[graph_name]
           entry = default_graph[graph_name] ||= {'@id' => graph_name}
           nodes = entry['@graph'] ||= []

lib/json/ld/compact.rb

@@ -43,7 +43,7 @@ def compact(element, property: nil)
         # @null objects are used in framing
         return nil if element.has_key?('@null')
 
-        if element.keys.any? {|k| %w(@id @value).include?(k)}
+        if element.key?('@id') || element.key?('@value')
           result = context.compact_value(property, element, log_depth: @options[:log_depth])
           unless result.is_a?(Hash)
             #log_debug("") {"=> scalar result: #{result.inspect}"}
@@ -58,7 +58,7 @@ def compact(element, property: nil)
           expanded_value = element[expanded_property]
           #log_debug("") {"#{expanded_property}: #{expanded_value.inspect}"}
 
-          if %w(@id @type).include?(expanded_property)
+          if expanded_property == '@id' || expanded_property == '@type'
             compacted_value = [expanded_value].flatten.compact.map do |expanded_type|
               context.compact_iri(expanded_type, vocab: (expanded_property == '@type'), log_depth: @options[:log_depth])
             end
@@ -118,14 +118,14 @@ def compact(element, property: nil)
           end
 
           # Otherwise, if expanded property is @index, @value, or @language:
-          if %w(@index @value @language).include?(expanded_property)
+          if expanded_property == '@index' || expanded_property == '@value' || expanded_property == '@language'
             al = context.compact_iri(expanded_property, vocab: true, quiet: true)
             #log_debug(expanded_property) {"#{al} => #{expanded_value.inspect}"}
             result[al] = expanded_value
             next
           end
 
-          if expanded_value == []
+          if expanded_value.empty?
             item_active_property =
               context.compact_iri(expanded_property,
                                   value: expanded_value,
@@ -181,7 +181,7 @@ def compact(element, property: nil)
               end
             end
 
-            if %w(@language @index @id @type).include?(container)
+            if container == '@language' || container == '@index' || container == '@id' || container == '@type'
               map_object = nest_result[item_active_property] ||= {}
               compacted_item = case container
               when '@id'
@@ -218,7 +218,7 @@ def compact(element, property: nil)
         end
 
         # Re-order result keys
-        result.keys.kw_sort.inject({}) {|map, kk| map[kk] = result[kk]; map}
+        result.keys.kw_sort.each_with_object({}) {|kk, memo| memo[kk] = result[kk]}
       else
         # For other types, the compacted value is the element value
         #log_debug("compact") {element.class.to_s}

lib/json/ld/context.rb

@@ -2,6 +2,7 @@
 # frozen_string_literal: true
 require 'json'
 require 'bigdecimal'
+require 'set'
 
 module JSON::LD
   class Context
@@ -112,7 +113,7 @@ def initialize(term,
       def container_mapping=(mapping)
         mapping = Array(mapping)
         if @as_set = mapping.include?('@set')
-          mapping -= %w(@set)
+          mapping.delete('@set')
         end
         @container_mapping = mapping.first
       end
@@ -554,7 +555,7 @@ def create_term_definition(local_context, term, defined)
       end
 
       # Since keywords cannot be overridden, term must not be a keyword. Otherwise, an invalid value has been detected, which is an error.
-      if KEYWORDS.include?(term) && !%w(@vocab @language @version).include?(term)
+      if KEYWORDS.include?(term) && (term != '@vocab' && term != '@language' && term != '@version')
         raise JsonLdError::KeywordRedefinition, "term must not be a keyword: #{term.inspect}" if
           @options[:validate]
       elsif !term_valid?(term) && @options[:validate]
@@ -606,7 +607,7 @@ def create_term_definition(local_context, term, defined)
           else
             :error
           end
-          unless %w(@id @vocab).include?(type) || type.is_a?(RDF::URI) && type.absolute?
+          unless (type == '@id' || type == '@vocab') || type.is_a?(RDF::URI) && type.absolute?
             raise JsonLdError::InvalidTypeMapping, "unknown mapping for '@type': #{type.inspect} on term #{term.inspect}"
           end
           #log_debug("") {"type_mapping: #{type.inspect}"}
@@ -615,7 +616,7 @@ def create_term_definition(local_context, term, defined)
 
         if value.has_key?('@reverse')
           raise JsonLdError::InvalidReverseProperty, "unexpected key in #{value.inspect} on term #{term.inspect}" if
-            value.keys.any? {|k| %w(@id @nest).include?(k)}
+            value.key?('@id') || value.key?('@nest')
           raise JsonLdError::InvalidIRIMapping, "expected value of @reverse to be a string: #{value['@reverse'].inspect} on term #{term.inspect}" unless
             value['@reverse'].is_a?(String)
 
@@ -633,7 +634,7 @@ def create_term_definition(local_context, term, defined)
             container = value['@container']
             raise JsonLdError::InvalidReverseProperty,
                   "unknown mapping for '@container' to #{container.inspect} on term #{term.inspect}" unless
-                   container.is_a?(String) && ['@set', '@index'].include?(container)
+                   container.is_a?(String) && (container == '@set' || container == '@index')
             definition.container_mapping = check_container(container, local_context, defined, term)
           end
           definition.reverse_property = true
@@ -654,7 +655,7 @@ def create_term_definition(local_context, term, defined)
               (simple_term || ((processingMode || 'json-ld-1.0') == 'json-ld-1.0'))
         elsif term.include?(':')
           # If term is a compact IRI with a prefix that is a key in local context then a dependency has been found. Use this algorithm recursively passing active context, local context, the prefix as term, and defined.
-          prefix, suffix = term.split(':')
+          prefix, suffix = term.split(':', 2)
           create_term_definition(local_context, prefix, defined) if local_context.has_key?(prefix)
 
           definition.id = if td = term_definitions[prefix]
@@ -791,15 +792,15 @@ def from_vocabulary(graph)
         (statements[statement.subject] ||= []) << statement
 
         # Keep track of predicate ranges
-        if [RDF::RDFS.range, RDF::SCHEMA.rangeIncludes].include?(statement.predicate) 
+        if [RDF::RDFS.range, RDF::SCHEMA.rangeIncludes].include?(statement.predicate)
           (ranges[statement.subject] ||= []) << statement.object
         end
       end
 
       # Add term definitions for each class and property not in vocab, and
       # for those properties having an object range
       statements.each do |subject, values|
-        types = values.select {|v| v.predicate == RDF.type}.map(&:object)
+        types = values.each_with_object([]) { |v, memo| memo << v.object if v.predicate == RDF.type }
         is_property = types.any? {|t| t.to_s.include?("Property")}
 
         term = subject.to_s.split(/[\/\#]/).last
@@ -886,7 +887,7 @@ def container(term)
     # @param [Term, #to_s] term in unexpanded form
     # @return [Boolean]
     def as_array?(term)
-      return true if %w(@graph @list).include?(term)
+      return true if term == '@graph' || term == '@list'
       term = find_definition(term)
       term && (term.as_set || term.container_mapping == '@list')
     end
@@ -979,12 +980,14 @@ def reverse_term(term)
     #   IRI or String, if it's a keyword
     # @raise [JSON::LD::JsonLdError::InvalidIRIMapping] if the value cannot be expanded
     # @see http://json-ld.org/spec/latest/json-ld-api/#iri-expansion
-    def expand_iri(value, documentRelative: false, vocab: false, local_context: nil, defined: {}, quiet: false, **options)
+    def expand_iri(value, documentRelative: false, vocab: false, local_context: nil, defined: nil, quiet: false, **options)
       return value unless value.is_a?(String)
 
       return value if KEYWORDS.include?(value)
       #log_debug("expand_iri") {"value: #{value.inspect}"} unless quiet
 
+      defined = defined || {} # if we initialized in the keyword arg we would allocate {} at each invokation, even in the 2 (common) early returns above.
+
       # If local context is not null, it contains a key that equals value, and the value associated with the key that equals value in defined is not true, then invoke the Create Term Definition subalgorithm, passing active context, local context, value as term, and defined. This will ensure that a term definition is created for value in active context during Context Processing.
       if local_context && local_context.has_key?(value) && !defined[value]
         create_term_definition(local_context, value, defined)
@@ -1003,7 +1006,7 @@ def expand_iri(value, documentRelative: false, vocab: false, local_context: nil,
 
         # If prefix is underscore (_) or suffix begins with double-forward-slash (//), return value as it is already an absolute IRI or a blank node identifier.
         return RDF::Node.new(namer.get_sym(suffix)) if prefix == '_'
-        return RDF::URI(value) if suffix[0,2] == '//'
+        return RDF::URI(value) if suffix.start_with?('//')
 
         # If local context is not null, it contains a key that equals prefix, and the value associated with the key that equals prefix in defined is not true, invoke the Create Term Definition algorithm, passing active context, local context, prefix as term, and defined. This will ensure that a term definition is created for prefix in active context during Context Processing.
         if local_context && local_context.has_key?(prefix) && !defined[prefix]
@@ -1138,7 +1141,7 @@ def compact_iri(iri, value: nil, vocab: nil, reverse: false, quiet: false, **opt
         tl_value ||= '@null'
         preferred_values = []
         preferred_values << '@reverse' if tl_value == '@reverse'
-        if %w(@id @reverse).include?(tl_value) && value.is_a?(Hash) && value.has_key?('@id')
+        if (tl_value == '@id' || tl_value == '@reverse') && value.is_a?(Hash) && value.has_key?('@id')
           t_iri = compact_iri(value['@id'], vocab: true, document_relative: true)
           if (r_td = term_definitions[t_iri]) && r_td.id == value['@id']
             preferred_values.concat(%w(@vocab @id @none))
@@ -1204,6 +1207,8 @@ def compact_iri(iri, value: nil, vocab: nil, reverse: false, quiet: false, **opt
       end
     end
 
+    RDF_LITERAL_NATIVE_TYPES = Set.new([RDF::XSD.boolean, RDF::XSD.integer, RDF::XSD.double]).freeze
+
     ##
     # If active property has a type mapping in the active context set to @id or @vocab, a JSON object with a single member @id whose value is the result of using the IRI Expansion algorithm on value is returned.
     #
@@ -1246,7 +1251,7 @@ def expand_value(property, value, useNativeTypes: false, **options)
       when RDF::Literal
         #log_debug("Literal") {"datatype: #{value.datatype.inspect}"}
         res = {}
-        if useNativeTypes && [RDF::XSD.boolean, RDF::XSD.integer, RDF::XSD.double].include?(value.datatype)
+        if useNativeTypes && RDF_LITERAL_NATIVE_TYPES.include?(value.datatype)
           res['@value'] = value.object
           res['@type'] = uri(coerce(property)) if coerce(property)
         else
@@ -1297,7 +1302,7 @@ def expand_value(property, value, useNativeTypes: false, **options)
     def compact_value(property, value, options = {})
       #log_debug("compact_value") {"property: #{property.inspect}, value: #{value.inspect}"}
 
-      num_members = value.keys.length
+      num_members = value.length
 
       num_members -= 1 if index?(value) && container(property) == '@index'
       if num_members > 2
@@ -1407,7 +1412,7 @@ def dup
     def coerce(property)
       # Map property, if it's not an RDF::Value
       # @type is always is an IRI
-      return '@id' if [RDF.type, '@type'].include?(property)
+      return '@id' if property == RDF.type || property == '@type'
       term_definitions[property] && term_definitions[property].type_mapping
     end
 
@@ -1573,9 +1578,10 @@ def remove_base(iri)
     #
     # @return [Array<RDF::URI>]
     def mappings
-      term_definitions.inject({}) do |memo, (t,td)|
-        memo[t] = td ? td.id : nil
-        memo
+      {}.tap do |memo|
+        term_definitions.each_pair do |t,td|
+          memo[t] = td ? td.id : nil
+        end
       end
     end
 
@@ -1595,9 +1601,10 @@ def mapping(term)
     # @return [Array<String>]
     # @deprecated
     def languages
-      term_definitions.inject({}) do |memo, (t,td)|
-        memo[t] = td.language_mapping
-        memo
+      {}.tap do |memo|
+        term_definitions.each_pair do |t,td|
+          memo[t] = td.language_mapping
+        end
       end
     end
 
@@ -1610,7 +1617,7 @@ def check_container(container, local_context, defined, term)
       end
 
       val = Array(container)
-      val -= %w(@set) if has_set = val.include?('@set')
+      val.delete('@set') if has_set = val.include?('@set')
 
       raise JsonLdError::InvalidContainerMapping,
         "'@container' has more than one value other than @set" if val.length > 1