From 5bf2e299de6b4f6936bd7e88cb20a487d63e815f Mon Sep 17 00:00:00 2001
From: Timothee Guerin <tiguerin@microsoft.com>
Date: Wed, 28 Jun 2023 07:54:02 -0700
Subject: [PATCH 1/2] Fix formatter incorrectly formatting meta type accessor

---
 packages/compiler/src/formatter/print/printer.ts   |  3 ++-
 packages/compiler/test/formatter/formatter.test.ts | 13 +++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/packages/compiler/src/formatter/print/printer.ts b/packages/compiler/src/formatter/print/printer.ts
index edb601102d..d74632b673 100644
--- a/packages/compiler/src/formatter/print/printer.ts
+++ b/packages/compiler/src/formatter/print/printer.ts
@@ -945,7 +945,8 @@ export function printMemberExpression(
   print: PrettierChildPrint
 ): Doc {
   const node = path.getValue();
-  return [node.base ? [path.call(print, "base"), "."] : "", path.call(print, "id")];
+
+  return [node.base ? [path.call(print, "base"), node.selector] : "", path.call(print, "id")];
 }
 
 export function printModelExpression(
diff --git a/packages/compiler/test/formatter/formatter.test.ts b/packages/compiler/test/formatter/formatter.test.ts
index 3511a45b0f..1e29fc83c4 100644
--- a/packages/compiler/test/formatter/formatter.test.ts
+++ b/packages/compiler/test/formatter/formatter.test.ts
@@ -2265,6 +2265,19 @@ model Foo {
     });
   });
 
+  describe("meta type accessor", () => {
+    it("format with ::", () => {
+      assertFormat({
+        code: `
+@@doc(myOp ::  parameters.foo, "")
+`,
+        expected: `
+@@doc(myOp::parameters.foo, "");
+`,
+      });
+    });
+  });
+
   describe("projections", () => {
     it("format projections", () => {
       assertFormat({

From 7a02678f529235e4bdf27ee65b1063c43c8c1555 Mon Sep 17 00:00:00 2001
From: Timothee Guerin <tiguerin@microsoft.com>
Date: Wed, 28 Jun 2023 08:30:53 -0700
Subject: [PATCH 2/2] Changelog

---
 ...ormatter-format-meta-accessor_2023-06-28-15-30.json | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 common/changes/@typespec/compiler/fix-formatter-format-meta-accessor_2023-06-28-15-30.json

diff --git a/common/changes/@typespec/compiler/fix-formatter-format-meta-accessor_2023-06-28-15-30.json b/common/changes/@typespec/compiler/fix-formatter-format-meta-accessor_2023-06-28-15-30.json
new file mode 100644
index 0000000000..0309e97020
--- /dev/null
+++ b/common/changes/@typespec/compiler/fix-formatter-format-meta-accessor_2023-06-28-15-30.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@typespec/compiler",
+      "comment": "Fix: Formatter incorrectly formatting `::` to `.`",
+      "type": "none"
+    }
+  ],
+  "packageName": "@typespec/compiler"
+}
\ No newline at end of file