Merge pull request estools#253 from adamjmcgrath/esprima-2.x

Esprima 2.x import/export statements

Author: Constellation

escodegen.js

@@ -1265,6 +1265,15 @@
             return result;
         },
 
+        ExportDefaultDeclaration: function (stmt, flags) {
+             stmt.default = true;
+             return this.ExportDeclaration(stmt, flags);
+        },
+
+        ExportNamedDeclaration: function (stmt, flags) {
+            return this.ExportDeclaration(stmt, flags);
+        },
+
         ExpressionStatement: function (stmt, flags) {
             var result, fragment;
 
@@ -2236,13 +2245,14 @@
         },
 
         ImportDefaultSpecifier: function (expr, precedence, flags) {
-            return generateIdentifier(expr.id);
+            return generateIdentifier(expr.id || expr.local);
         },
 
         ImportNamespaceSpecifier: function (expr, precedence, flags) {
             var result = ['*'];
-            if (expr.id) {
-                result.push(space + 'as' + noEmptySpace() + generateIdentifier(expr.id));
+            var id = expr.id || expr.local;
+            if (id) {
+                result.push(space + 'as' + noEmptySpace() + generateIdentifier(id));
             }
             return result;
         },
@@ -2252,7 +2262,7 @@
         },
 
         ExportSpecifier: function (expr, precedence, flags) {
-            var result = [ expr.id.name ];
+            var result = [ (expr.id || expr.local).name ];
             if (expr.name) {
                 result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(expr.name));
             }

test/3rdparty/esprima.js test/3rdparty/esprima-1.0.0-dev.jstest/3rdparty/esprima.js renamed to test/3rdparty/esprima-1.0.0-dev.js

@@ -24,7 +24,7 @@
 
 'use strict';
 
-var esprima = require('./3rdparty/esprima'),
+var esprima = require('./3rdparty/esprima-1.0.0-dev'),
     escodegen = require('./loader'),
     chai = require('chai'),
     expect = chai.expect,

test/3rdparty/esprima-2.5.0.js

@@ -25,7 +25,7 @@
 'use strict';
 
 var data,
-    esprima = require('./3rdparty/esprima'),
+    esprima = require('./3rdparty/esprima-1.0.0-dev'),
     escodegen = require('./loader'),
     chai = require('chai'),
     expect = chai.expect;

test/api.js

@@ -0,0 +1,106 @@
+/*
+ Copyright (C) 2012-2013 Yusuke Suzuki <utatane.tea@gmail.com>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+'use strict';
+
+var fs = require('fs'),
+   esprima = require('./3rdparty/esprima-2.5.0'),
+   escodegen = require('./loader'),
+   chai = require('chai'),
+   expect = chai.expect,
+   DIR = 'compare-esprima2';
+
+function test(code, expected) {
+   var tree, actual, options, StringObject;
+
+   // alias, so that JSLint does not complain.
+   StringObject = String;
+
+   options = {
+      range: true,
+      loc: false,
+      tokens: true,
+      raw: false,
+      comment: true,
+      sourceType: 'module'
+   };
+
+   tree = esprima.parse(code, options);
+
+   // for UNIX text comment
+   actual = escodegen.generate(tree).replace(/[\n\r]$/, '') + '\n';
+   expect(actual).to.be.equal(expected);
+}
+
+function testMin(code, expected) {
+   var tree, tree2, actual, actual2, options, StringObject;
+
+   // alias, so that JSLint does not complain.
+   StringObject = String;
+
+   options = {
+      range: true,
+      loc: false,
+      tokens: true,
+      raw: false,
+      sourceType: 'module'
+   };
+
+   tree = esprima.parse(code, options);
+
+   // for UNIX text comment
+   actual = escodegen.generate(tree, {
+         format: escodegen.FORMAT_MINIFY,
+         raw: false
+      }).replace(/[\n\r]$/, '') + '\n';
+   expect(actual).to.be.equal(expected);
+
+   // And ensure that minified value is exactly equal.
+   tree2 = esprima.parse(actual, options);
+   actual2 = escodegen.generate(tree2, {
+         format: escodegen.FORMAT_MINIFY,
+         raw: false
+      }).replace(/[\n\r]$/, '') + '\n';
+   expect(actual2).to.be.equal(actual);
+}
+
+describe('compare esprima 2 test', function () {
+   fs.readdirSync(__dirname + '/' + DIR).sort().forEach(function(file) {
+      var code, expected, exp, min;
+      if (/\.js$/.test(file) && !/expected\.js$/.test(file) && !/expected\.min\.js$/.test(file)) {
+         it(file, function () {
+            exp = file.replace(/\.js$/, '.expected.js');
+            min = file.replace(/\.js$/, '.expected.min.js');
+            code = fs.readFileSync(__dirname + '/' + DIR + '/' + file, 'utf-8');
+            expected = fs.readFileSync(__dirname + '/' + DIR + '/' + exp, 'utf-8');
+            test(code, expected);
+            if (fs.existsSync(__dirname + '/' + DIR + '/' + min)) {
+               expected = fs.readFileSync(__dirname + '/' + DIR + '/' + min, 'utf-8');
+               testMin(code, expected);
+            }
+         });
+      }
+   });
+});
+/* vim: set sw=4 ts=4 et tw=80 : */

test/ast.js

@@ -0,0 +1,2 @@
+export default function a() {
+}

test/compare-esprima2.js

@@ -0,0 +1 @@
+export default function a(){}

test/compare-esprima2/export-default-declaration.expected.js

@@ -0,0 +1,3 @@
+export default function a () { }
+// export default var i = 20;
+// export default const K = 20;

test/compare-esprima2/export-default-declaration.expected.min.js

@@ -0,0 +1,8 @@
+import foo from 'foo';
+import foo, * as foo from 'foo';
+import * as foo from 'foo';
+import ok, {
+    foo,
+    test,
+    logging
+} from 'foo';