feature: @putout/plugin-remove-useless-escape: backtick inside single quote

Author: coderaiser

packages/plugin-remove-useless-escape/lib/remove-useless-escape.js

@@ -21,8 +21,14 @@ export const traverse = ({push}) => ({
     StringLiteral(path) {
         const {raw} = path.node;
 
+        if (!raw)
+            return;
+        
         if (isEscaped(raw))
             push(path);
+        
+        if (raw.includes('\\`') && !raw.includes('\\\\`'))
+            return push(path);
     },
 
     TemplateLiteral(path) {
@@ -68,9 +74,6 @@ const hasEmoji = (a) => {
 };
 
 function isEscaped(raw) {
-    if (!raw)
-        return false;
-    
     if (!raw.includes('\\'))
         return false;
 
@@ -124,7 +127,8 @@ function unEscape(raw) {
         .replaceAll('\\.', '.')
         .replace(/(\\),/, ',')
         .replaceAll('\\h', 'h')
-        .replaceAll('\\z', 'z');
+        .replaceAll('\\z', 'z')
+        .replaceAll('\\`', '`');
 
     for (const emoji of match(raw)) {
         raw = raw.replace(createEncodedRegExp(emoji), emoji);

packages/plugin-remove-useless-escape/test/fixture/backtick-fix.js

@@ -1 +1,3 @@
 path.node.raw.includes(`'`);
+
+const a = 'const a = `hello ${world}`;';

packages/plugin-remove-useless-escape/test/fixture/backtick.js

@@ -1,2 +1,3 @@
 path.node.raw.includes(`\'`)
 
+const a = 'const a = \`hello ${world}\`;';

packages/plugin-remove-useless-escape/test/fixture/slash.js

@@ -10,5 +10,9 @@ const expected = montag`
 
 fixture = fixture
     .replace(/'/g, `\\'`);
-    
+
+if (raw.includes('\\`'))
+    return true;
+
+t.report('apply-namespace-to-imported-file', `Use \`import * as dotdot from './b/index.js'\` in '/lib/index.js'`);