feature: @putout/printer: ImportAttribute: improve

Author: coderaiser

lib/tokenize/statements/import-declaration/fixture/import-assertions-fix.js

@@ -1,4 +1,6 @@
-import json from './foo.json' assert { type: 'json' };
+import json from './foo.json' assert {
+    type: 'json',
+};
 
 import('./foo.json', {
     assert: {

lib/tokenize/statements/import-declaration/fixture/import-assertions.js

@@ -1,4 +1,6 @@
-import json from './foo.json' assert { type: 'json' };
+import json from './foo.json' assert {
+    type: 'json',
+};
 
 import('./foo.json', {
     assert: {

lib/tokenize/statements/import-declaration/fixture/import-attributes.js

@@ -1,4 +1,7 @@
-import json from './foo.json' with { type: 'json' };
+import json from './foo.json' with {
+    type: 'json',
+    hello: 'world',
+};
 
 import('./foo.json', {
     with: {

lib/tokenize/statements/import-declaration/import-attribute.js

@@ -5,28 +5,19 @@ module.exports.ImportAttribute = (path, {print}) => {
     print(':');
     print.space();
     print('__value');
+    print(',');
 };
 
-module.exports.maybePrintAttributes = (path, {write, traverse}) => {
+module.exports.maybePrintAttributes = (path, printer) => {
     if (isAssertions(path))
-        return printAttributes(path, {
-            write,
-            traverse,
-            
-            keyword: 'assert',
-        });
+        return printAttributes(path, 'assert', printer);
 
-    printAttributes(path, {
-        write,
-        traverse,
-        
-        keyword: 'with',
-    });
+    printAttributes(path, 'with', printer);
 };
 
 const isAssertions = (path) => path.node.extra?.deprecatedAssertSyntax;
 
-function printAttributes(path, {write, traverse, keyword}) {
+function printAttributes(path, keyword, {write, traverse, indent}) {
     const attributes = path.get('attributes');
 
     if (!attributes.length)
@@ -36,12 +27,16 @@ function printAttributes(path, {write, traverse, keyword}) {
     write.space();
 
     write('{');
-    write.space();
+    write.breakline();
+    indent.inc();
 
     for (const attr of attributes) {
+        indent();
         traverse(attr);
+        write.newline();
     }
 
-    write.space();
+    indent.dec();
     write('}');
 }
+

lib/tokenize/statements/import-declaration/import-declaration.js

@@ -102,10 +102,7 @@ module.exports.ImportDeclaration = {
         print.space();
 
         print('__source');
-        maybePrintAttributes(path, {
-            write,
-            traverse,
-        });
+        maybePrintAttributes(path, printer);
         print(';');
 
         if (isNext(path))