Write spec for binding items

test/svelte3/integration/bind/bind.declared.svelte

@@ -0,0 +1,7 @@
+<ShopingCart bind:totalCost={totalCost} />
+
+<script>
+    import ShopingCart from './ShopingCart.svelte';
+
+    let totalCost;
+</script>

test/svelte3/integration/bind/bind.named.svelte

@@ -0,0 +1,5 @@
+<ShopingCart bind:totalCost={cost} />
+
+<script>
+    import ShopingCart from './ShopingCart.svelte';
+</script>

test/svelte3/integration/bind/bind.simple.svelte

@@ -0,0 +1,5 @@
+<ShopingCart bind:totalCost />
+
+<script>
+    import ShopingCart from './ShopingCart.svelte';
+</script>

test/svelte3/integration/bind/bind.spec.js

@@ -0,0 +1,85 @@
+const path = require('path');
+const chai = require('chai');
+const expect = chai.expect;
+
+const parser = require('../../../../index');
+
+describe('SvelteDoc v3 - Bind', () => {
+    it('Bind simple definition should be parsed', (done) => {
+        parser.parse({
+            version: 3,
+            filename: path.resolve(__dirname, 'bind.simple.svelte'),
+            features: ['data'],
+            ignoredVisibilities: []
+        }).then((doc) => {
+            expect(doc, 'Document should be provided').to.exist;
+            expect(doc.data, 'Document data should be parsed').to.exist;
+
+            expect(doc.data.length).to.equal(1);
+            const item = doc.data[0];
+
+            expect(item, 'Bind item should be a valid entity').to.exist;
+            expect(item.name).to.equal('totalCost');
+            expect(item.visibility).to.equal('private');
+            expect(item.bind, 'Bind information should be presented').to.exist;
+            expect(item.bind.source).to.equal('ShopingCart');
+            expect(item.bind.property).to.equal('totalCost');
+
+            done();
+        }).catch(e => {
+            done(e);
+        });
+    });
+
+    it('Bind named definition should be parsed', (done) => {
+        parser.parse({
+            version: 3,
+            filename: path.resolve(__dirname, 'bind.named.svelte'),
+            features: ['data'],
+            ignoredVisibilities: []
+        }).then((doc) => {
+            expect(doc, 'Document should be provided').to.exist;
+            expect(doc.data, 'Document data should be parsed').to.exist;
+
+            expect(doc.data.length).to.equal(1);
+            const item = doc.data[0];
+
+            expect(item, 'Bind item should be a valid entity').to.exist;
+            expect(item.name).to.equal('cost');
+            expect(item.visibility).to.equal('private');
+            expect(item.bind, 'Bind information should be presented').to.exist;
+            expect(item.bind.source).to.equal('ShopingCart');
+            expect(item.bind.property).to.equal('totalCost');
+
+            done();
+        }).catch(e => {
+            done(e);
+        });
+    });
+
+    it('Bind declared definition should be parsed', (done) => {
+        parser.parse({
+            version: 3,
+            filename: path.resolve(__dirname, 'bind.declared.svelte'),
+            features: ['data'],
+            ignoredVisibilities: []
+        }).then((doc) => {
+            expect(doc, 'Document should be provided').to.exist;
+            expect(doc.data, 'Document data should be parsed').to.exist;
+
+            expect(doc.data.length).to.equal(1);
+            const item = doc.data[0];
+
+            expect(item, 'Bind item should be a valid entity').to.exist;
+            expect(item.name).to.equal('totalCost');
+            expect(item.visibility).to.equal('private');
+            expect(item.bind, 'Bind information should be presented').to.exist;
+            expect(item.bind.source).to.equal('ShopingCart');
+            expect(item.bind.property).to.equal('totalCost');
+
+            done();
+        }).catch(e => {
+            done(e);
+        });
+    });
+});

typings.d.ts

@@ -76,6 +76,18 @@ export interface ISvelteItem {
     keywords?: JSDocKeyword[];
 }
 
+export interface SvelteDataBindMapping {
+    /**
+     * The parent component name or DOM element from which are was binded.
+     */
+    source: string;
+
+    /**
+     * The name of the property which are was binded.
+     */
+    property: string;
+}
+
 export interface SvelteDataItem extends ISvelteItem {
     /**
      * The JS type of property.
@@ -87,6 +99,12 @@ export interface SvelteDataItem extends ISvelteItem {
      * @since {2.0.0}
      */
     let?: 'var'|'let'|'const';
+    /**
+     * Provides information about property binding.
+     * @since Svelte V3
+     * @since {2.1.0}
+     */
+    bind?: SvelteDataBindMapping;
     /**
      * Indicates that this data item of component located in static context.
      * Variable should be declared in `<script scope="module" />` block.