fix(ecmascript/codegen): TsQualifiedName has trailing dot (#1268)

Co-authored-by: 강동윤 <kdy1997.dev@gmail.com>

ecmascript/codegen/src/tests.rs

@@ -78,6 +78,17 @@ pub(crate) fn assert_min(from: &str, to: &str) {
     assert_eq!(DebugUsingDisplay(out.trim()), DebugUsingDisplay(to),);
 }
 
+/// Clone of the regular `assert_min` function but with TypeScript syntax.
+pub(crate) fn assert_min_typescript(from: &str, to: &str) {
+    let out = parse_then_emit(
+        from,
+        Config { minify: true },
+        Syntax::Typescript(Default::default()),
+    );
+
+    assert_eq!(DebugUsingDisplay(out.trim()), DebugUsingDisplay(to),);
+}
+
 pub(crate) fn assert_pretty(from: &str, to: &str) {
     let out = parse_then_emit(from, Config { minify: false }, Syntax::default());
 

ecmascript/codegen/src/typescript.rs

@@ -113,7 +113,6 @@ impl<'a> Emitter<'a> {
         match n {
             TsEntityName::TsQualifiedName(n) => {
                 emit!(n);
-                punct!(".");
             }
             TsEntityName::Ident(n) => emit!(n),
         }
@@ -973,3 +972,16 @@ impl<'a> Emitter<'a> {
         self.emit_list(n.span, Some(&n.types), ListFormat::UnionTypeConstituents)?;
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::tests::assert_min_typescript;
+
+    #[test]
+    fn qualified_type() {
+        assert_min_typescript(
+            "var memory: WebAssembly.Memory;",
+            "var memory:WebAssembly.Memory;",
+        );
+    }
+}