From 5b7a7d06028e432d1e23b43963905c1a76b102b2 Mon Sep 17 00:00:00 2001
From: h13i32maru <h13i32maru@gmail.com>
Date: Sun, 20 Nov 2016 15:08:33 +0900
Subject: [PATCH] feat(experimental): function bind

---
 src/Parser/ESParser.js              | 1 +
 src/Typedef/typedef.js              | 1 +
 test/fixture/syntax/FunctionBind.js | 6 ++++++
 test/src/ParserTest/ESParserTest.js | 5 ++++-
 4 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 test/fixture/syntax/FunctionBind.js

diff --git a/src/Parser/ESParser.js b/src/Parser/ESParser.js
index c5a1f922..985ab027 100644
--- a/src/Parser/ESParser.js
+++ b/src/Parser/ESParser.js
@@ -63,6 +63,7 @@ export default class ESParser {
       if (experimental.classProperties) option.plugins.push('classProperties');
       if (experimental.objectRestSpread) option.plugins.push('objectRestSpread');
       if (experimental.doExpressions) option.plugins.push('doExpressions');
+      if (experimental.functionBind) option.plugins.push('functionBind');
     }
 
     return option;
diff --git a/src/Typedef/typedef.js b/src/Typedef/typedef.js
index 03b8bfe7..e88f2012 100644
--- a/src/Typedef/typedef.js
+++ b/src/Typedef/typedef.js
@@ -32,6 +32,7 @@
  * @property {boolean} experimentalProposal.classProperties
  * @property {boolean} experimentalProposal.objectRestSpread
  * @property {boolean} experimentalProposal.doExpressions
+ * @property {boolean} experimentalProposal.functionBind
  * @see https://esdoc.org/config.html
  */
 
diff --git a/test/fixture/syntax/FunctionBind.js b/test/fixture/syntax/FunctionBind.js
new file mode 100644
index 00000000..ded48a00
--- /dev/null
+++ b/test/fixture/syntax/FunctionBind.js
@@ -0,0 +1,6 @@
+function foo(){}
+export default class Foo {
+  method() {
+    this::foo();
+  }
+}
diff --git a/test/src/ParserTest/ESParserTest.js b/test/src/ParserTest/ESParserTest.js
index 2bb0bce0..8acf886d 100644
--- a/test/src/ParserTest/ESParserTest.js
+++ b/test/src/ParserTest/ESParserTest.js
@@ -8,5 +8,8 @@ describe('ESParser', ()=>{
     assert(ast.program.sourceType === 'module');
   });
 
-  // todo: enhance test patterns.
+  it('can parse "function bind"', ()=>{
+    const ast = ESParser.parse({experimentalProposal: {functionBind: true}}, './test/fixture/syntax/FunctionBind.js');
+    assert(ast.program.sourceType === 'module');
+  });
 });