feat(experimental): dynamic import

Author: h13i32maru

package.json

@@ -26,7 +26,7 @@
     "cheerio": "0.20.0",
     "color-logger": "0.0.3",
     "escape-html": "1.0.3",
-    "babylon": "6.11.2",
+    "babylon": "6.14.1",
     "babel-generator": "6.11.4",
     "babel-traverse": "6.12.0",
     "fs-extra": "0.30.0",

src/Parser/ESParser.js

@@ -69,6 +69,7 @@ export default class ESParser {
       if (experimental.asyncGenerators) option.plugins.push('asyncGenerators');
       if (experimental.decorators) option.plugins.push('decorators');
       if (experimental.exportExtensions) option.plugins.push('exportExtensions');
+      if (experimental.dynamicImport) option.plugins.push('dynamicImport');
     }
 
     return option;

src/Typedef/typedef.js

@@ -37,6 +37,7 @@
  * @property {boolean} experimentalProposal.asyncGenerators
  * @property {boolean} experimentalProposal.decorators
  * @property {boolean} experimentalProposal.exportExtensions
+ * @property {boolean} experimentalProposal.dynamicImport
  * @see https://esdoc.org/config.html
  */
 

test/fixture/syntax/DynamicImport.js

@@ -0,0 +1,5 @@
+for (let i = 0; i < 10; i++) {
+  import(`mod${$i}.js`)
+    .then(module => console.log(module))
+    .catch(err => console.log(err));
+}

test/src/ParserTest/ESParserTest.js

@@ -27,4 +27,9 @@ describe('ESParser', ()=>{
     const ast = ESParser.parse({experimentalProposal: {exportExtensions: true}}, './test/fixture/syntax/ExportExtensions.js');
     assert(ast.program.sourceType === 'module');
   });
+
+  it('can parse "dynamic import"', ()=>{
+    const ast = ESParser.parse({experimentalProposal: {dynamicImport: true}}, './test/fixture/syntax/DynamicImport.js');
+    assert(ast.program.sourceType === 'module');
+  });
 });