feat(experimental): export extensions

Author: h13i32maru

src/Parser/ESParser.js

@@ -68,6 +68,7 @@ export default class ESParser {
       if (experimental.asyncGenerators) option.plugins.push('asyncGenerators');
       if (experimental.asyncGenerators) option.plugins.push('asyncGenerators');
       if (experimental.decorators) option.plugins.push('decorators');
+      if (experimental.exportExtensions) option.plugins.push('exportExtensions');
     }
 
     return option;

src/Typedef/typedef.js

@@ -36,6 +36,7 @@
  * @property {boolean} experimentalProposal.functionSent
  * @property {boolean} experimentalProposal.asyncGenerators
  * @property {boolean} experimentalProposal.decorators
+ * @property {boolean} experimentalProposal.exportExtensions
  * @see https://esdoc.org/config.html
  */
 

test/fixture/syntax/ExportExtensions.js

@@ -0,0 +1,4 @@
+export * as ns from 'mod'
+export v from "mod"
+export vv, {x, y as w} from "mod"
+export default from "mod"

test/src/ParserTest/ESParserTest.js

@@ -22,4 +22,9 @@ describe('ESParser', ()=>{
     const ast = ESParser.parse({experimentalProposal: {asyncGenerators: true}}, './test/fixture/syntax/AsyncGenerators.js');
     assert(ast.program.sourceType === 'module');
   });
+
+  it('can parse "export extensions"', ()=>{
+    const ast = ESParser.parse({experimentalProposal: {exportExtensions: true}}, './test/fixture/syntax/ExportExtensions.js');
+    assert(ast.program.sourceType === 'module');
+  });
 });