Fix issue to allow module block in member expression

packages/babel-parser/src/parser/expression.js

@@ -512,13 +512,6 @@ export default class ExpressionParser extends LValParser {
       if (!sawUnary) this.checkExponentialAfterUnary(expr);
       return expr;
     }
-    if (
-      this.isContextual("module") &&
-      this.lookaheadCharCode() === charCodes.leftCurlyBrace &&
-      !this.hasFollowingLineBreak()
-    ) {
-      return this.parseModuleExpression();
-    }
     const update = this.match(tt.incDec);
     const node = this.startNode();
     if (this.state.type.prefix) {
@@ -1002,6 +995,13 @@ export default class ExpressionParser extends LValParser {
         return this.finishNode(node, "ThisExpression");
 
       case tt.name: {
+        if (
+          this.isContextual("module") &&
+          this.lookaheadCharCode() === charCodes.leftCurlyBrace &&
+          !this.hasFollowingLineBreak()
+        ) {
+          return this.parseModuleExpression();
+        }
         const canBeArrow = this.state.potentialArrowAt === this.state.start;
         const containsEsc = this.state.containsEsc;
         const id = this.parseIdentifier();

packages/babel-parser/test/fixtures/experimental/_no-plugin/async-do-expressions-with-do-expressions/options.json

@@ -3,4 +3,4 @@
   "plugins": [
     "doExpressions"
   ]
-}
+}

packages/babel-parser/test/fixtures/experimental/module-blocks/module-block-in-member-expression/input.js

@@ -0,0 +1 @@
+module {}.foo

packages/babel-parser/test/fixtures/experimental/module-blocks/module-block-in-member-expression/output.json

@@ -0,0 +1,39 @@
+{
+  "type": "File",
+  "start":0,"end":13,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":13}},
+  "program": {
+    "type": "Program",
+    "start":0,"end":13,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":13}},
+    "sourceType": "module",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start":0,"end":13,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":13}},
+        "expression": {
+          "type": "MemberExpression",
+          "start":0,"end":13,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":13}},
+          "object": {
+            "type": "ModuleExpression",
+            "start":0,"end":9,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":9}},
+            "body": {
+              "type": "Program",
+              "start":8,"end":9,"loc":{"start":{"line":1,"column":8},"end":{"line":1,"column":9}},
+              "sourceType": "module",
+              "interpreter": null,
+              "body": [],
+              "directives": []
+            }
+          },
+          "computed": false,
+          "property": {
+            "type": "Identifier",
+            "start":10,"end":13,"loc":{"start":{"line":1,"column":10},"end":{"line":1,"column":13},"identifierName":"foo"},
+            "name": "foo"
+          }
+        }
+      }
+    ],
+    "directives": []
+  }
+}