feature: @putout/plugin-labels: ImportDeclaration: assert: exclude

Author: coderaiser

packages/plugin-labels/lib/remove-unused/fixture/import-assert.js

@@ -0,0 +1 @@
+import a from 'a' assert {type: 'json'}

packages/plugin-labels/lib/remove-unused/index.js

@@ -1,6 +1,9 @@
 import {operator, types} from 'putout';
 
-const {isReturnStatement} = types;
+const {
+    isReturnStatement,
+    isIdentifier,
+} = types;
 const {replaceWith} = operator;
 
 export const report = ({name}) => `Label '${name}' is defined but never used`;
@@ -17,6 +20,9 @@ export const traverse = ({push}) => ({
         if (isPrevReturnWithoutArg(path))
             return;
 
+        if (isPrevImportAssert(path))
+            return;
+        
         if (!usedLabel({path, name}))
             push({
                 path,
@@ -57,3 +63,14 @@ function isPrevReturnWithoutArg({parentPath}) {
 
     return !retPath.node.argument;
 }
+
+function isPrevImportAssert({parentPath}) {
+    const prev = parentPath.getPrevSibling();
+    
+    if (!prev.isExpressionStatement())
+        return false;
+    
+    return isIdentifier(prev.node.expression, {
+        name: 'assert',
+    });
+}

packages/plugin-labels/lib/remove-unused/index.spec.js

@@ -26,3 +26,8 @@ test('putout: remove-unused: no report: return', (t) => {
     t.noReport('return');
     t.end();
 });
+
+test('putout: remove-unused: no report: import-assert', (t) => {
+    t.noReport('import-assert');
+    t.end();
+});