From 3bfd0a345d90a47e2dd749287c83156dcfb4829a Mon Sep 17 00:00:00 2001
From: Timofey Kachalov <sanex3339@users.noreply.github.com>
Date: Thu, 9 Jan 2020 01:48:05 +0300
Subject: [PATCH] CatchClause params now ESTree.Pattern | null (#41383)

---
 types/estree/estree-tests.ts | 6 +++++-
 types/estree/index.d.ts      | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/types/estree/estree-tests.ts b/types/estree/estree-tests.ts
index 3e2dc11b94..b52031180a 100644
--- a/types/estree/estree-tests.ts
+++ b/types/estree/estree-tests.ts
@@ -126,6 +126,10 @@ literal = directive.expression;
 // $ExpectType string
 directive.directive;
 
+// pattern
+var pattern: ESTree.Pattern;
+var patternOrNull: ESTree.Pattern | null;
+
 // IfStatement
 var ifStatement: ESTree.IfStatement;
 expression = ifStatement.test;
@@ -256,7 +260,7 @@ statement = switchCase.consequent[0];
 
 // CatchClause
 string = catchClause.type;
-pattern = catchClause.param;
+patternOrNull = catchClause.param;
 blockStatement = catchClause.body;
 
 // Misc
diff --git a/types/estree/index.d.ts b/types/estree/index.d.ts
index 436877346e..cab353cdde 100644
--- a/types/estree/index.d.ts
+++ b/types/estree/index.d.ts
@@ -342,7 +342,7 @@ export interface SwitchCase extends BaseNode {
 
 export interface CatchClause extends BaseNode {
   type: "CatchClause";
-  param: Pattern;
+  param: Pattern | null;
   body: BlockStatement;
 }