Syntax error when using 'type const'

[reddevilmidzy]

rust-analyzer version: : 0.3.2862-standalone (7b6e124 2026-04-12)

rustc version: rustc 1.97.0-nightly (17584a181 2026-04-13)

editor or extension: Zed (0.231.2 cc335b70f85a17974a4c61f852dbebff8c4b1db7)
(I checked it in VSCode as well, and the same error occurred.)

code snippet to reproduce:

#![feature(min_generic_const_args)]
#![allow(incomplete_features, unused)]

type const FOO: i32 = 2i32;

fn main() {}

The code is compilable, but 8 syntax errors occur.

[ChayimFriedman2]

Supporting this is really not hard: you have to add 'type'? in rust.ungram under Const, parse them in opt_item() in https://github.com/rust-lang/rust-analyzer/blob/f53911152a931648119710cbadb3244603343dfd/crates/parser/src/grammar/items.rs, with a test like you see there, then run cargo xtask codegen to generate the tests and the nodes, and finally UPDATE_EXPECT=1 to update the test output.