Parse attributes in tuple expressions

Author: Veykril

crates/parser/src/grammar/expressions/atom.rs

@@ -156,11 +156,13 @@ fn tuple_expr(p: &mut Parser) -> CompletedMarker {
     let mut saw_expr = false;
     while !p.at(EOF) && !p.at(T![')']) {
         saw_expr = true;
-        if !p.at_ts(EXPR_FIRST) {
-            p.error("expected expression");
+
+        // test tuple_attrs
+        // const A: (i64, i64) = (1, #[cfg(test)] 2);
+        if !expr_with_attrs(p) {
             break;
         }
-        expr(p);
+
         if !p.at(T![')']) {
             saw_comma = true;
             p.expect(T![,]);

crates/syntax/test_data/parser/inline/ok/0154_tuple_attrs.rast

@@ -0,0 +1,50 @@
+[email protected]
+  [email protected]
+    [email protected] "const"
+    [email protected] " "
+    [email protected]
+      [email protected] "A"
+    [email protected] ":"
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "i64"
+      [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "i64"
+      [email protected] ")"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected] "1"
+      [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "#"
+          [email protected] "["
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "cfg"
+          [email protected]
+            [email protected] "("
+            [email protected] "test"
+            [email protected] ")"
+          [email protected] "]"
+        [email protected] " "
+        [email protected] "2"
+      [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"

crates/syntax/test_data/parser/inline/ok/0154_tuple_attrs.rs

@@ -0,0 +1 @@
+const A: (i64, i64) = (1, #[cfg(test)] 2);