More support for "@type": "@none"

Author: gkellogg

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Fixed
 - JSON literal value handling issues.
+- More support for "@type": "@none"
 
 ## 2.0.0 - 2019-12-09
 

lib/compact.js

@@ -952,7 +952,7 @@ api.compactValue = ({activeCtx, activeProperty, value, options}) => {
     const preserveIndex = '@index' in value && !container.includes('@index');
 
     // if there's no @index to preserve ...
-    if(!preserveIndex) {
+    if(!preserveIndex && type !== '@none') {
       // matching @type or @language specified in context, compact value
       if(value['@type'] === type || value['@language'] === language) {
         return value['@value'];
@@ -971,6 +971,7 @@ api.compactValue = ({activeCtx, activeProperty, value, options}) => {
     const hasNullMapping = (activeCtx.mappings.has(activeProperty) &&
       activeCtx.mappings.get(activeProperty)['@language'] === null);
     if(isValueOnlyKey &&
+      type !== '@none' &&
       (!hasDefaultLanguage || !isValueString || hasNullMapping)) {
       return value['@value'];
     }
@@ -1169,17 +1170,15 @@ function _selectTerm(
   prefs.push('@none');
 
   const containerMap = activeCtx.inverse[iri];
-  for(let ci = 0; ci < containers.length; ++ci) {
+  for(const container of containers) {
     // if container not available in the map, continue
-    const container = containers[ci];
     if(!(container in containerMap)) {
       continue;
     }
 
     const typeOrLanguageValueMap = containerMap[container][typeOrLanguage];
-    for(let pi = 0; pi < prefs.length; ++pi) {
+    for(const pref of prefs) {
       // if type/language option not available in the map, continue
-      const pref = prefs[pi];
       if(!(pref in typeOrLanguageValueMap)) {
         continue;
       }

lib/context.js

@@ -527,7 +527,15 @@ api.createTermDefinition = ({
         {code: 'invalid type mapping', context: localCtx});
     }
 
-    if(type !== '@id' && type !== '@vocab' && type !== '@json') {
+    if((type === '@json' || type === '@none')) {
+      if(api.processingMode(activeCtx, 1.0)) {
+        throw new JsonLdError(
+          'Invalid JSON-LD syntax; an @context @type value not be ' +
+          '#{type} in JSON-LD 1.0 mode.',
+          'jsonld.SyntaxError',
+          {code: 'invalid type mapping', context: localCtx});
+      }
+    } else if(type !== '@id' && type !== '@vocab') {
       // expand @type to full IRI
       type = _expandIri(
         activeCtx, type, {vocab: true, base: false}, localCtx, defined,
@@ -959,6 +967,10 @@ api.getInitialContext = options => {
         if(mapping.reverse) {
           // term is preferred for values using @reverse
           _addPreferredTerm(term, entry['@type'], '@reverse');
+        } else if(mapping['@type'] === '@none') {
+          _addPreferredTerm(term, entry['@any'], '@none');
+          _addPreferredTerm(term, entry['@language'], '@none');
+          _addPreferredTerm(term, entry['@type'], '@none');
         } else if('@type' in mapping) {
           // term is preferred for values using specific type
           _addPreferredTerm(term, entry['@type'], mapping['@type']);

lib/expand.js

@@ -855,7 +855,7 @@ function _expandValue({activeCtx, activeProperty, value, options}) {
 
   const rval = {};
 
-  if(type && !['@id', '@vocab'].includes(type)) {
+  if(type && !['@id', '@vocab', '@none'].includes(type)) {
     // other type
     rval['@type'] = type;
   } else if(_isString(value)) {

tests/test-common.js

@@ -32,10 +32,6 @@ const TEST_TYPES = {
       specVersion: ['json-ld-1.0'],
       // FIXME
       idRegex: [
-        // @type: @none
-        /compact-manifest.jsonld#ttn01$/,
-        /compact-manifest.jsonld#ttn02$/,
-        /compact-manifest.jsonld#ttn03$/,
         // included
         /compact-manifest.jsonld#tin01$/,
         /compact-manifest.jsonld#tin02$/,
@@ -108,8 +104,6 @@ const TEST_TYPES = {
         /expand-manifest.jsonld#thc03$/,
         /expand-manifest.jsonld#thc04$/,
         /expand-manifest.jsonld#thc05$/,
-        // @type: @none
-        /expand-manifest.jsonld#ttn02$/,
         // misc
         /expand-manifest.jsonld#te043$/,
         /expand-manifest.jsonld#te044$/,
@@ -408,8 +402,6 @@ const TEST_TYPES = {
         /toRdf-manifest.jsonld#tso08$/,
         /toRdf-manifest.jsonld#tso10$/,
         /toRdf-manifest.jsonld#tso11$/,
-        // type:none
-        /toRdf-manifest.jsonld#ttn02$/,
         // colliding keyword
         /toRdf-manifest.jsonld#te114$/,
         // included