Merge pull request #52 from fczuardi/issue_51

change the referencer to support import as described in the ESTree spec (fixes #51)

src/referencer.js

@@ -83,6 +83,7 @@ function isPattern(node) {
 
 // Importing ImportDeclaration.
 // http://people.mozilla.org/~jorendorff/es6-draft.html#sec-moduledeclarationinstantiation
+// https://github.com/estree/estree/blob/master/es6.md#importdeclaration
 // FIXME: Now, we don't create module environment, because the context is
 // implementation dependent.
 
@@ -108,20 +109,23 @@ class Importer extends esrecurse.Visitor {
     }
 
     ImportNamespaceSpecifier(node) {
-        if (node.id) {
-            this.visitImport(node.id, node);
+        node.local = (node.local || node.id);
+        if (node.local) {
+            this.visitImport(node.local, node);
         }
     }
 
     ImportDefaultSpecifier(node) {
-        this.visitImport(node.id, node);
+        node.local = (node.local || node.id);
+        this.visitImport(node.local, node);
     }
 
     ImportSpecifier(node) {
+        node.local = (node.local || node.id);
         if (node.name) {
             this.visitImport(node.name, node);
         } else {
-            this.visitImport(node.id, node);
+            this.visitImport(node.local, node);
         }
     }
 }

test/es6-import.coffee

@@ -22,13 +22,13 @@
 #  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 expect = require('chai').expect
-harmony = require '../third_party/esprima'
+harmony = require '../third_party/espree'
 escope = require '..'
 
 describe 'import declaration', ->
     # http://people.mozilla.org/~jorendorff/es6-draft.html#sec-static-and-runtme-semantics-module-records
     it 'should import names from source', ->
-        ast = harmony.parse """
+        ast = harmony """
         import v from "mod";
         """, sourceType: 'module'
 
@@ -48,7 +48,7 @@ describe 'import declaration', ->
         expect(scope.references).to.have.length 0
 
     it 'should import namespaces', ->
-        ast = harmony.parse """
+        ast = harmony """
         import * as ns from "mod";
         """, sourceType: 'module'
 
@@ -68,7 +68,7 @@ describe 'import declaration', ->
         expect(scope.references).to.have.length 0
 
     it 'should import insided names#1', ->
-        ast = harmony.parse """
+        ast = harmony """
         import {x} from "mod";
         """, sourceType: 'module'
 
@@ -88,7 +88,7 @@ describe 'import declaration', ->
         expect(scope.references).to.have.length 0
 
     it 'should import insided names#2', ->
-        ast = harmony.parse """
+        ast = harmony """
         import {x as v} from "mod";
         """, sourceType: 'module'