From a86d14de6179fe9a0faf23a87277899c117cfe3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=B2=20Ribaudo?= <nicolo.ribaudo@gmail.com>
Date: Thu, 12 Apr 2018 21:58:34 +0200
Subject: [PATCH] Disallow super() in class properties

---
 packages/babylon/src/parser/statement.js                   | 6 ++++++
 .../class-private-properties/super-call/input.js           | 7 +++++++
 .../class-private-properties/super-call/options.json       | 4 ++++
 .../experimental/class-properties/super-call/input.js      | 7 +++++++
 .../experimental/class-properties/super-call/options.json  | 4 ++++
 5 files changed, 28 insertions(+)
 create mode 100644 packages/babylon/test/fixtures/experimental/class-private-properties/super-call/input.js
 create mode 100644 packages/babylon/test/fixtures/experimental/class-private-properties/super-call/options.json
 create mode 100644 packages/babylon/test/fixtures/experimental/class-properties/super-call/input.js
 create mode 100644 packages/babylon/test/fixtures/experimental/class-properties/super-call/options.json

diff --git a/packages/babylon/src/parser/statement.js b/packages/babylon/src/parser/statement.js
index ce4722a437..68f9cd0d75 100644
--- a/packages/babylon/src/parser/statement.js
+++ b/packages/babylon/src/parser/statement.js
@@ -1294,10 +1294,13 @@ export default class StatementParser extends ExpressionParser {
   parseClassPrivateProperty(
     node: N.ClassPrivateProperty,
   ): N.ClassPrivateProperty {
+    const oldInMethod = this.state.inMethod;
+    this.state.inMethod = false;
     this.state.inClassProperty = true;
     node.value = this.eat(tt.eq) ? this.parseMaybeAssign() : null;
     this.semicolon();
     this.state.inClassProperty = false;
+    this.state.inMethod = oldInMethod;
     return this.finishNode(node, "ClassPrivateProperty");
   }
 
@@ -1306,6 +1309,8 @@ export default class StatementParser extends ExpressionParser {
       this.expectPlugin("classProperties");
     }
 
+    const oldInMethod = this.state.inMethod;
+    this.state.inMethod = false;
     this.state.inClassProperty = true;
 
     if (this.match(tt.eq)) {
@@ -1317,6 +1322,7 @@ export default class StatementParser extends ExpressionParser {
     }
     this.semicolon();
     this.state.inClassProperty = false;
+    this.state.inMethod = oldInMethod;
 
     return this.finishNode(node, "ClassProperty");
   }
diff --git a/packages/babylon/test/fixtures/experimental/class-private-properties/super-call/input.js b/packages/babylon/test/fixtures/experimental/class-private-properties/super-call/input.js
new file mode 100644
index 0000000000..3087bc1f35
--- /dev/null
+++ b/packages/babylon/test/fixtures/experimental/class-private-properties/super-call/input.js
@@ -0,0 +1,7 @@
+class A extends B {
+  constructor() {
+    class C extends D {
+      #foo = super();
+    }
+  }
+}
\ No newline at end of file
diff --git a/packages/babylon/test/fixtures/experimental/class-private-properties/super-call/options.json b/packages/babylon/test/fixtures/experimental/class-private-properties/super-call/options.json
new file mode 100644
index 0000000000..e20043c3fa
--- /dev/null
+++ b/packages/babylon/test/fixtures/experimental/class-private-properties/super-call/options.json
@@ -0,0 +1,4 @@
+{
+  "plugins": ["classPrivateProperties"],
+  "throws": "super() is only valid inside a class constructor. Make sure the method name is spelled exactly as 'constructor'. (4:13)"
+}
diff --git a/packages/babylon/test/fixtures/experimental/class-properties/super-call/input.js b/packages/babylon/test/fixtures/experimental/class-properties/super-call/input.js
new file mode 100644
index 0000000000..f4d90f19b2
--- /dev/null
+++ b/packages/babylon/test/fixtures/experimental/class-properties/super-call/input.js
@@ -0,0 +1,7 @@
+class A extends B {
+  constructor() {
+    class C extends D {
+      foo = super();
+    }
+  }
+}
\ No newline at end of file
diff --git a/packages/babylon/test/fixtures/experimental/class-properties/super-call/options.json b/packages/babylon/test/fixtures/experimental/class-properties/super-call/options.json
new file mode 100644
index 0000000000..3f06e4fecf
--- /dev/null
+++ b/packages/babylon/test/fixtures/experimental/class-properties/super-call/options.json
@@ -0,0 +1,4 @@
+{
+  "plugins": ["classProperties"],
+  "throws": "super() is only valid inside a class constructor. Make sure the method name is spelled exactly as 'constructor'. (4:12)"
+}