* Change createTermDefinition method signature to use hash-based arguments, allowing optional arguments to be passed in.

Author: gkellogg

lib/context.js

@@ -272,14 +272,13 @@ api.process = async ({
 
     // process all other keys
     for(const key in ctx) {
-      api.createTermDefinition(
-        rval, ctx, key, defined, options,
-        isPropertyTermScopedContext);
-    }
-
-    // if context is type-scoped, ensure previous context has been set
-    if(isTypeScopedContext && !rval.previousContext) {
-      rval.previousContext = previousContext.clone();
+      api.createTermDefinition({
+        activeCtx: rval,
+        localCtx: ctx,
+        term: key,
+        defined,
+        options,
+        overrideProtected});
     }
 
     // cache result
@@ -305,9 +304,14 @@ api.process = async ({
  *   signal a warning.
  * @param overrideProtected `false` allows protected terms to be modified.
  */
-api.createTermDefinition = (
-  activeCtx, localCtx, term, defined, options,
-  overrideProtected = false) => {
+api.createTermDefinition = ({
+  activeCtx,
+  localCtx,
+  term,
+  defined,
+  options,
+  overrideProtected = false,
+}) => {
   if(defined.has(term)) {
     // term already defined
     if(defined.get(term)) {
@@ -475,7 +479,7 @@ api.createTermDefinition = (
       const prefix = term.substr(0, colon);
       if(localCtx.hasOwnProperty(prefix)) {
         // define parent prefix
-        api.createTermDefinition(activeCtx, localCtx, prefix, defined, options);
+        api.createTermDefinition({activeCtx, localCtx, term: prefix, defined, options});
       }
 
       if(activeCtx.mappings.has(prefix)) {
@@ -780,10 +784,9 @@ function _expandIri(activeCtx, value, relativeTo, localCtx, defined, options) {
   // define term dependency if not defined
   if(localCtx && localCtx.hasOwnProperty(value) &&
     defined.get(value) !== true) {
-    api.createTermDefinition(activeCtx, localCtx, value, defined, options);
+    api.createTermDefinition({activeCtx, localCtx, term: value, defined, options});
   }
 
-
   relativeTo = relativeTo || {};
   if(relativeTo.vocab) {
     const mapping = activeCtx.mappings.get(value);
@@ -813,7 +816,7 @@ function _expandIri(activeCtx, value, relativeTo, localCtx, defined, options) {
 
     // prefix dependency not defined, define it
     if(localCtx && localCtx.hasOwnProperty(prefix)) {
-      api.createTermDefinition(activeCtx, localCtx, prefix, defined, options);
+      api.createTermDefinition({activeCtx, localCtx, term: prefix, defined, options});
     }
 
     // use mapping if prefix is defined