Concat document definitions

loader.js

@@ -41,10 +41,23 @@ function expandImports(source, doc) {
 
 module.exports = function(source) {
   this.cacheable();
-  const doc = gql`${source}`;
+  const doc = gql(source, true);
+
+  if (doc.definitions) {
+    for (var i = 0; i < doc.definitions.length; i++) {
+      if (doc.definitions[i].loc) {
+        doc.definitions[i].loc = {
+          start: doc.definitions[i].loc.start,
+          end: doc.definitions[i].loc.end,
+          source: doc.definitions[i].loc.source
+        }
+      }
+    }
+  }
+
   const outputCode = `
-    var doc = ${JSON.stringify(doc)};
-    doc.loc.source = ${JSON.stringify(doc.loc.source)};
+    var doc = ${JSON.stringify(doc, null, 4)};
+    doc.loc.source = ${JSON.stringify(doc.loc.source, null, 4)};
   `;
   const importOutputCode = expandImports(source, doc);
 

src/index.js

@@ -128,7 +128,7 @@ function stripLoc(doc, removeLocAtThisLevel) {
   return doc;
 }
 
-function parseDocument(doc) {
+function parseDocument(doc, asImport) {
   var cacheKey = normalize(doc);
 
   if (docCache[cacheKey]) {
@@ -143,7 +143,12 @@ function parseDocument(doc) {
   // check that all "new" fragments inside the documents are consistent with
   // existing fragments of the same name
   parsed = processFragments(parsed);
-  parsed = stripLoc(parsed, false);
+  if (asImport) {
+    parsed.definitions = stripLoc(parsed.definitions, false);
+  }
+  else {
+    parsed = stripLoc(parsed, false);
+  }
   docCache[cacheKey] = parsed;
 
   return parsed;
@@ -152,23 +157,41 @@ function parseDocument(doc) {
 // XXX This should eventually disallow arbitrary string interpolation, like Relay does
 function gql(/* arguments */) {
   var args = Array.prototype.slice.call(arguments);
+  var asImport = args[args.length - 1] === true;
+  if (asImport) {
+    args = args.slice(0, -1);
+  }
 
   var literals = args[0];
 
   // We always get literals[0] and then matching post literals for each arg given
   var result = (typeof(literals) === "string") ? literals : literals[0];
+  var definitions = [];
 
   for (var i = 1; i < args.length; i++) {
     if (args[i] && args[i].kind && args[i].kind === 'Document') {
       result += args[i].loc.source.body;
+      definitions = definitions.concat(args[i].definitions)
     } else {
       result += args[i];
     }
 
     result += literals[i];
   }
 
-  return parseDocument(result);
+  definitions = definitions.filter(function (def) {
+    return def.kind === 'FragmentDefinition' && def.loc
+  })
+
+  var doc = parseDocument(result, asImport || definitions.length);
+
+
+  if (definitions.length > 0) {
+    doc.definitions = doc.definitions.concat(definitions)
+    doc = processFragments(doc)
+  }
+
+  return doc;
 }
 
 // Support typescript, which isn't as nice as Babel about default exports

test.js

@@ -70,6 +70,38 @@ const assert = require('chai').assert;
       assert.equal(definitions[1].kind, 'FragmentDefinition');
     });
 
+    it('correctly interpolates imports of other files through the webpack loader', () => {
+      const query =`#import "./fragment_definition.graphql"
+
+          fragment BooksAuthor on Book {
+            author {
+              ...AuthorDetails
+            }
+          }
+        `;
+      const jsSource = loader.call({ cacheable() {} }, query);
+
+      const oldRequire = require;
+      const module = { exports: undefined };
+      const require = (path) => {
+        assert.equal(path, './fragment_definition.graphql');
+        return gql(`
+          fragment AuthorDetails on Author {
+            firstName
+            lastName
+          }`, true);
+      };
+
+      eval(jsSource);
+
+      const document = gql`query { ...BooksAuthor } ${module.exports}`;
+      assert.equal(document.kind, 'Document');
+      assert.equal(document.definitions.length, 3);
+      assert.equal(document.definitions[0].kind, 'OperationDefinition');
+      assert.equal(document.definitions[1].kind, 'FragmentDefinition');
+      assert.equal(document.definitions[2].kind, 'FragmentDefinition');
+    });
+
     it('does not complain when presented with normal comments', (done) => {
       assert.doesNotThrow(() => {
         const query = `#normal comment