perf: make sure performance improvements apply to datasetcore (#457)

src/N3Store.js

@@ -861,6 +861,9 @@ export default class N3Store {
    * Blank Nodes will be normalized.
    */
   addAll(quads) {
+    if (quads instanceof DatasetCoreAndReadableStream)
+      quads = quads.filtered;
+
     if (Array.isArray(quads))
       this.addQuads(quads);
     else if (quads instanceof N3Store && quads._entityIndex === this._entityIndex) {
@@ -883,6 +886,9 @@ export default class N3Store {
    * Blank Nodes will be normalized.
    */
   contains(other) {
+    if (other instanceof DatasetCoreAndReadableStream)
+      other = other.filtered;
+
     if (other === this)
       return true;
 
@@ -927,6 +933,9 @@ export default class N3Store {
    * Returns a new dataset that contains all quads from the current dataset that are not included in the given dataset.
    */
   difference(other) {
+    if (other && other instanceof DatasetCoreAndReadableStream)
+      other = other.filtered;
+
     if (other === this)
       return new N3Store({ entityIndex: this._entityIndex });
 
@@ -949,6 +958,9 @@ export default class N3Store {
    * Blank Nodes will be normalized.
    */
   equals(other) {
+    if (other instanceof DatasetCoreAndReadableStream)
+      other = other.filtered;
+
     return other === this || (this.size === other.size && this.contains(other));
   }
 
@@ -969,6 +981,9 @@ export default class N3Store {
    * Returns a new dataset containing all quads from the current dataset that are also included in the given dataset.
    */
   intersection(other) {
+    if (other instanceof DatasetCoreAndReadableStream)
+      other = other.filtered;
+
     if (other === this) {
       const store = new N3Store({ entityIndex: this._entityIndex });
       store._graphs = merge(Object.create(null), this._graphs);

test/N3Store-test.js

@@ -2358,6 +2358,23 @@ describe('Store', () => {
         expect(empty.some(quad => true)).toBe(false);
       });
     });
+
+    describe('#every', () => {
+      it('should return true if every quad passes the test', () => {
+        expect(store1.every(quad => quad.subject.value === 's1')).toBe(true);
+        expect(store1.every(quad => quad.subject.value === 's2')).toBe(false);
+        expect(store1.every(quad => quad.object.value === 'o1')).toBe(false);
+        expect(store1.every(quad => quad.subject.termType === 'NamedNode')).toBe(true);
+      });
+
+      it('should return false if no quad passes the test', () => {
+        expect(store1.every(quad => quad.subject.value === 's2')).toBe(false);
+      });
+
+      it('should return true on the empty set', () => {
+        expect(empty.every(quad => true)).toBe(true);
+      });
+    });
   });
 });