From f3bf6a1791c9dc64bb18d45712f07767c9f96cbd Mon Sep 17 00:00:00 2001
From: Daniil Dubrava <daniil.dubrava@yandex.ru>
Date: Thu, 19 Nov 2020 23:19:14 +0300
Subject: [PATCH] fix(eslint-plugin): [prefer-literal-enum-member] allow pure
 template literal strings (#2786)

---
 .../eslint-plugin/src/rules/prefer-literal-enum-member.ts  | 7 +++++++
 .../tests/rules/prefer-literal-enum-member.test.ts         | 7 ++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/src/rules/prefer-literal-enum-member.ts b/packages/eslint-plugin/src/rules/prefer-literal-enum-member.ts
index 4377b29dc8f..9843afeef4f 100644
--- a/packages/eslint-plugin/src/rules/prefer-literal-enum-member.ts
+++ b/packages/eslint-plugin/src/rules/prefer-literal-enum-member.ts
@@ -29,6 +29,13 @@ export default createRule({
         if (node.initializer.type === AST_NODE_TYPES.Literal) {
           return;
         }
+        // TemplateLiteral without expressions
+        if (
+          node.initializer.type === AST_NODE_TYPES.TemplateLiteral &&
+          node.initializer.expressions.length === 0
+        ) {
+          return;
+        }
         // -1 and +1
         if (
           node.initializer.type === AST_NODE_TYPES.UnaryExpression &&
diff --git a/packages/eslint-plugin/tests/rules/prefer-literal-enum-member.test.ts b/packages/eslint-plugin/tests/rules/prefer-literal-enum-member.test.ts
index 1f5efac8027..5459c42d51e 100644
--- a/packages/eslint-plugin/tests/rules/prefer-literal-enum-member.test.ts
+++ b/packages/eslint-plugin/tests/rules/prefer-literal-enum-member.test.ts
@@ -18,6 +18,11 @@ enum ValidString {
 }
     `,
     `
+enum ValidLiteral {
+  A = \`test\`,
+}
+    `,
+    `
 enum ValidNumber {
   A = 42,
 }
@@ -90,7 +95,7 @@ enum InvalidArray {
     {
       code: `
 enum InvalidTemplateLiteral {
-  A = \`a\`,
+  A = \`foo \${0}\`,
 }
       `,
       errors: [