[typespec-vscode] Make 'convert to object value' code fix recursive

packages/compiler/src/core/compiler-code-fixes/model-to-object-literal.codefix.ts

@@ -1,5 +1,5 @@
 import { defineCodeFix, getSourceLocation } from "../diagnostics.js";
-import type { ModelExpressionNode } from "../types.js";
+import { SyntaxKind, type CodeFixEdit, type ModelExpressionNode } from "../types.js";
 
 /**
  * Quick fix that convert a model expression to an object value.
@@ -9,8 +9,26 @@ export function createModelToObjectValueCodeFix(node: ModelExpressionNode) {
     id: "model-to-object-value",
     label: `Convert to an object value \`#{}\``,
     fix: (context) => {
+      const result: CodeFixEdit[] = [];
+
       const location = getSourceLocation(node);
-      return context.prependText(location, "#");
+      result.push(context.prependText(location, "#"));
+      createChildModelToObjValCodeFix(node);
+
+      return result;
+
+      function createChildModelToObjValCodeFix(node: ModelExpressionNode) {
+        for (const prop of node.properties.values()) {
+          if ("value" in prop) {
+            const childNode = prop.value;
+            if (childNode.pos > node.pos && childNode.kind === SyntaxKind.ModelExpression) {
+              const locationChild = getSourceLocation(childNode);
+              result.push(context.prependText(locationChild, "#"));
+              createChildModelToObjValCodeFix(childNode);
+            }
+          }
+        }
+      }
     },
   });
 }

packages/compiler/test/core/compiler-code-fixes/model-to-literal.codefix.test.ts

@@ -21,3 +21,21 @@ it("it change model expression to an object value", async () => {
       }
     `);
 });
+
+it("it recursively changes the model expression to the corresponding object value", async () => {
+  await expectCodeFixOnAst(
+    `
+      @example(┆{Bar : {Baz : "Hello"}})
+      model Foo { Bar : Bar; }
+      model Bar { Baz : string }
+    `,
+    (node) => {
+      strictEqual(node.kind, SyntaxKind.ModelExpression);
+      return createModelToObjectValueCodeFix(node);
+    },
+  ).toChangeTo(`
+      @example(#{Bar : #{Baz : "Hello"}})
+      model Foo { Bar : Bar; }
+      model Bar { Baz : string }
+    `);
+});