From 4ac67c4c9401c5ce0e947a6409efbc11afe1eb3b Mon Sep 17 00:00:00 2001
From: Yuri Pieters <MageJohn@users.noreply.github.com>
Date: Thu, 17 Jun 2021 05:40:50 +0100
Subject: [PATCH] feat(experimental-utils): expose ReferenceTracker.ESM (#3532)

Co-authored-by: Yuri Pieters <yuri.pieters@anaplan.com>
---
 .../src/ast-utils/eslint-utils/ReferenceTracker.ts            | 4 ++++
 packages/experimental-utils/typings/eslint-utils.d.ts         | 1 +
 2 files changed, 5 insertions(+)

diff --git a/packages/experimental-utils/src/ast-utils/eslint-utils/ReferenceTracker.ts b/packages/experimental-utils/src/ast-utils/eslint-utils/ReferenceTracker.ts
index ee2ace3f762..40e5fa7c179 100644
--- a/packages/experimental-utils/src/ast-utils/eslint-utils/ReferenceTracker.ts
+++ b/packages/experimental-utils/src/ast-utils/eslint-utils/ReferenceTracker.ts
@@ -7,6 +7,7 @@ const ReferenceTrackerREAD: unique symbol = eslintUtils.ReferenceTracker.READ;
 const ReferenceTrackerCALL: unique symbol = eslintUtils.ReferenceTracker.CALL;
 const ReferenceTrackerCONSTRUCT: unique symbol =
   eslintUtils.ReferenceTracker.CONSTRUCT;
+const ReferenceTrackerESM: unique symbol = eslintUtils.ReferenceTracker.ESM;
 
 interface ReferenceTracker {
   /**
@@ -59,12 +60,14 @@ interface ReferenceTrackerStatic {
   readonly READ: typeof ReferenceTrackerREAD;
   readonly CALL: typeof ReferenceTrackerCALL;
   readonly CONSTRUCT: typeof ReferenceTrackerCONSTRUCT;
+  readonly ESM: typeof ReferenceTrackerESM;
 }
 
 namespace ReferenceTracker {
   export type READ = ReferenceTrackerStatic['READ'];
   export type CALL = ReferenceTrackerStatic['CALL'];
   export type CONSTRUCT = ReferenceTrackerStatic['CONSTRUCT'];
+  export type ESM = ReferenceTrackerStatic['ESM'];
   export type ReferenceType = READ | CALL | CONSTRUCT;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   export type TraceMap<T = any> = Record<string, TraceMapElement<T>>;
@@ -72,6 +75,7 @@ namespace ReferenceTracker {
     [ReferenceTrackerREAD]?: T;
     [ReferenceTrackerCALL]?: T;
     [ReferenceTrackerCONSTRUCT]?: T;
+    [ReferenceTrackerESM]?: true;
     [key: string]: TraceMapElement<T>;
   }
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
diff --git a/packages/experimental-utils/typings/eslint-utils.d.ts b/packages/experimental-utils/typings/eslint-utils.d.ts
index f99a3e840db..5843e99466f 100644
--- a/packages/experimental-utils/typings/eslint-utils.d.ts
+++ b/packages/experimental-utils/typings/eslint-utils.d.ts
@@ -35,6 +35,7 @@ declare module 'eslint-utils' {
     readonly READ: never;
     readonly CALL: never;
     readonly CONSTRUCT: never;
+    readonly ESM: never;
     new (): never;
   };
 }