feat(descriptors): add support for descriptors (#99)

* feat(descriptors): add support for descriptors

* Improve descriptor test with more assertions

src/index.js

@@ -1,6 +1,8 @@
 var parser = require('graphql/language/parser');
+var buildASTSchema = require('graphql/utilities/buildASTSchema');
 
 var parse = parser.parse;
+var getDescription = buildASTSchema.getDescription;
 
 // Strip insignificant whitespace
 // Note that this could do a lot more, such as reorder fields etc.
@@ -83,6 +85,14 @@ function stripLoc(doc, removeLocAtThisLevel) {
  });
  }
 
+ if (!doc.description) {
+ var description = getDescription(doc);
+
+ if (description) {
+ doc.description = description;
+ }
+ }
+
  if (docType !== '[object Object]') {
  throw new Error('Unexpected input.');
  }

test.js

@@ -433,5 +433,21 @@ const assert = require('chai').assert;
  // `);
  // });
 
+ describe('descriptors', function() {
+ it('adds comments as descriptors', function() {
+ const ast = gql`
+ # This is a type descriptor
+ type Foo {
+ # This is a field descriptor
+ bar: String
+ baz: Int
+ }
+ `;
+ assert.equal(ast.definitions[0].description, 'This is a type descriptor');
+ assert.equal(ast.definitions[0].fields[0].description, 'This is a field descriptor');
+ assert.equal(ast.definitions[0].fields[1].description, undefined);
+ })
+ })
+
  });
 });