Import externals shorter syntax

Author: kristoferbaxter

src/parsing/import-specifiers.ts

@@ -57,16 +57,20 @@ export function Specifiers(
 }
 
 export function FormatSpecifiers(specifiers: Specifiers, name: string): string {
-  let formatted: string = 'import ';
+  const hasDefault = specifiers.default !== null;
+  const hasSpecifics = specifiers.specific.length > 0;
+  let formatted: string = 'import';
   let values: Array<string> = [];
 
-  if (specifiers.default !== null) {
-    values.push(specifiers.default);
+  if (hasDefault) {
+    values.push(`${specifiers.default}`);
   }
-  if (specifiers.specific.length > 0) {
+  if (hasSpecifics) {
     values.push(`{${specifiers.specific.join(',')}}`);
   }
-  formatted += `${values.join(',')} from '${name}';`;
+  formatted += `${hasDefault ? ' ' : ''}${values.join(',')}${
+    hasSpecifics ? '' : ' '
+  }from'${name}';`;
 
   return formatted;
 }

test/import/fixtures/external.esm.advanced.js

@@ -1 +1 @@
-import j from 'lodash3';import {thing,thing2} from 'lodash2';import _,{foo,bar} from 'lodash';console.log("lodash",_,foo,bar,thing,thing2,j);
+import j from'lodash3';import{thing,thing2}from'lodash2';import _,{foo,bar}from'lodash';console.log("lodash",_,foo,bar,thing,thing2,j);

test/import/fixtures/external.esm.default.js

@@ -1 +1 @@
-import j from 'lodash3';import {thing,thing2} from 'lodash2';import _,{foo,bar} from 'lodash';console.log("lodash",_,foo,bar,thing,thing2,j);
+import j from'lodash3';import{thing,thing2}from'lodash2';import _,{foo,bar}from'lodash';console.log("lodash",_,foo,bar,thing,thing2,j);

test/import/fixtures/external.esm.es5.js

@@ -1 +1 @@
-import j from 'lodash3';import {thing,thing2} from 'lodash2';import _,{foo,bar} from 'lodash';console.log("lodash",_,foo,bar,thing,thing2,j);
+import j from'lodash3';import{thing,thing2}from'lodash2';import _,{foo,bar}from'lodash';console.log("lodash",_,foo,bar,thing,thing2,j);

test/import/fixtures/utf8-common-38fdc940.esm.advanced.js

@@ -0,0 +1 @@
+function ɵɵbar(){console.log("bar")};function baz(){console.log("baz")};function ɵɵfoo(){console.log("foo")};export{ɵɵbar as a,baz as b,ɵɵfoo as ɵ}

test/import/fixtures/utf8-lazy-d5bcdc27.esm.advanced.js

@@ -0,0 +1 @@
+import{a as ɵɵbar}from'./utf8-common-38fdc940.js';\u0275\u0275bar();

test/import/fixtures/utf8-lazy-d5bcdc27.esm.default.js

@@ -1 +1 @@
-import {a as ɵɵbar} from './utf8-common-38fdc940.js';\u0275\u0275bar();
+import{a as ɵɵbar}from'./utf8-common-38fdc940.js';\u0275\u0275bar();

test/import/fixtures/utf8-lazy-d5bcdc27.esm.es5.js

@@ -1 +1 @@
-import {a as ɵɵbar} from './utf8-common-38fdc940.js';\u0275\u0275bar();
+import{a as ɵɵbar}from'./utf8-common-38fdc940.js';\u0275\u0275bar();

test/import/fixtures/utf8.esm.advanced.js

@@ -0,0 +1 @@
+import{ɵ as ɵɵfoo,b as baz}from'./utf8-common-38fdc940.js';\u0275\u0275foo();baz();import("./utf8-lazy-d5bcdc27.js");

test/import/fixtures/utf8.esm.default.js

@@ -1 +1 @@
-import {ɵ as ɵɵfoo,b as baz} from './utf8-common-38fdc940.js';\u0275\u0275foo();baz();import("./utf8-lazy-d5bcdc27.js");
+import{ɵ as ɵɵfoo,b as baz}from'./utf8-common-38fdc940.js';\u0275\u0275foo();baz();import("./utf8-lazy-d5bcdc27.js");