fix: handle route target subExpression

fixes #164

Author: makepanic

transforms/angle-brackets/test.js

@@ -957,3 +957,27 @@ test('preserve arguments', () => {
       "
   `);
 });
+
+test('handles link-to concat', () => {
+  let input = `
+    {{#link-to (concat someVariable ".detail") class="some-class"}}click{{/link-to}}
+  `;
+
+  expect(runTest('handles-link-to-concat.hbs', input)).toMatchInlineSnapshot(`
+    "
+        <LinkTo @route={{concat someVariable \\".detail\\"}} class=\\"some-class\\">click</LinkTo>
+      "
+  `);
+});
+
+test('handles link-to concat with hash', () => {
+  let input = `
+    {{#link-to (random-helper someVariable ".detail" do-the="thing") class="some-class"}}click{{/link-to}}
+  `;
+
+  expect(runTest('handles-link-to-concat.hbs', input)).toMatchInlineSnapshot(`
+    "
+        <LinkTo @route={{random-helper someVariable \\".detail\\" do-the=\\"thing\\"}} class=\\"some-class\\">click</LinkTo>
+      "
+  `);
+});

transforms/angle-brackets/transform.js

@@ -228,6 +228,11 @@ function transformToAngleBracket(env, fileInfo, config) {
       firstParamOutput = b.attr('@query', b.mustache(b.path('hash'), [], firstParamInput.hash));
     } else if (firstParamInput.type === 'PathExpression') {
       firstParamOutput = b.attr('@route', b.mustache(firstParamInput.original));
+    } else if (firstParamInput.type === 'SubExpression') {
+      firstParamOutput = b.attr(
+        '@route',
+        b.mustache(firstParamInput.path, firstParamInput.params, firstParamInput.hash)
+      );
     } else {
       firstParamOutput = b.attr('@route', b.text(firstParamInput.value));
     }