1 files changed, 127 insertions, 4 deletions

diff --git a/src/parser/grammar/types.rs b/src/parser/grammar/types.rs
index 71801d8ef..a4967a00a 100644
--- a/src/parser/grammar/types.rs
+++ b/src/parser/grammar/types.rs
@@ -1,8 +1,14 @@
 use super::*;
 
-pub(super) fn ty(p: &mut Parser) {
+pub(super) fn type_(p: &mut Parser) {
     match p.current() {
-        L_PAREN => paren_or_tuple_ty(p),
+        L_PAREN => paren_or_tuple_type(p),
+        EXCL => never_type(p),
+        STAR => pointer_type(p),
+        L_BRACK => array_or_slice_type(p),
+        AMPERSAND => reference_type(p),
+        UNDERSCORE => placeholder_type(p),
+        FN_KW | UNSAFE_KW | EXTERN_KW => fn_pointer_type(p),
         IDENT => path_type(p),
         _ => {
             p.error("expected type");
@@ -10,7 +16,11 @@ pub(super) fn ty(p: &mut Parser) {
     }
 }
 
-fn paren_or_tuple_ty(p: &mut Parser) {
+fn type_no_plus(p: &mut Parser) {
+    type_(p);
+}
+
+fn paren_or_tuple_type(p: &mut Parser) {
     assert!(p.at(L_PAREN));
     let m = p.start();
     p.bump();
@@ -18,7 +28,7 @@ fn paren_or_tuple_ty(p: &mut Parser) {
     let mut trailing_comma: bool = false;
     while !p.at(EOF) && !p.at(R_PAREN) {
         n_types += 1;
-        ty(p);
+        type_(p);
         if p.eat(COMMA) {
             trailing_comma = true;
         } else {
@@ -43,6 +53,119 @@ fn paren_or_tuple_ty(p: &mut Parser) {
     m.complete(p, kind);
 }
 
+// test never_type
+// type Never = !;
+fn never_type(p: &mut Parser) {
+    assert!(p.at(EXCL));
+    let m = p.start();
+    p.bump();
+    m.complete(p, NEVER_TYPE);
+}
+
+fn pointer_type(p: &mut Parser) {
+    assert!(p.at(STAR));
+    let m = p.start();
+    p.bump();
+
+    match p.current() {
+        // test pointer_type_mut
+        // type M = *mut ();
+        // type C = *mut ();
+        MUT_KW | CONST_KW => p.bump(),
+        _ => {
+            // test pointer_type_no_mutability
+            // type T = *();
+            p.error(
+                "expected mut or const in raw pointer type \
+                 (use `*mut T` or `*const T` as appropriate)",
+            );
+        }
+    };
+
+    type_no_plus(p);
+    m.complete(p, POINTER_TYPE);
+}
+
+fn array_or_slice_type(p: &mut Parser) {
+    assert!(p.at(L_BRACK));
+    let m = p.start();
+    p.bump();
+
+    type_(p);
+    let kind = match p.current() {
+        // test slice_type
+        // type T = [()];
+        R_BRACK => {
+            p.bump();
+            SLICE_TYPE
+        }
+
+        // test array_type
+        // type T = [(); 92];
+        SEMI => {
+            p.bump();
+            expressions::expr(p);
+            p.expect(R_BRACK);
+            ARRAY_TYPE
+        }
+        // test array_type_missing_semi
+        // type T = [() 92];
+        _ => {
+            p.error("expected `;` or `]`");
+            SLICE_TYPE
+        }
+    };
+    m.complete(p, kind);
+}
+
+// test reference_type;
+// type A = &();
+// type B = &'static ();
+// type C = &mut ();
+fn reference_type(p: &mut Parser) {
+    assert!(p.at(AMPERSAND));
+    let m = p.start();
+    p.bump();
+    p.eat(LIFETIME);
+    p.eat(MUT_KW);
+    type_no_plus(p);
+    m.complete(p, REFERENCE_TYPE);
+}
+
+// test placeholder_type
+// type Placeholder = _;
+fn placeholder_type(p: &mut Parser) {
+    assert!(p.at(UNDERSCORE));
+    let m = p.start();
+    p.bump();
+    m.complete(p, PLACEHOLDER_TYPE);
+}
+
+// test fn_pointer_type
+// type A = fn();
+// type B = unsafe fn();
+// type C = unsafe extern "C" fn();
+fn fn_pointer_type(p: &mut Parser) {
+    let m = p.start();
+    p.eat(UNSAFE_KW);
+    if p.at(EXTERN_KW) {
+        abi(p);
+    }
+    // test fn_pointer_type_missing_fn
+    // type F = unsafe ();
+    if !p.eat(FN_KW) {
+        m.abandon(p);
+        p.error("expected `fn`");
+        return;
+    }
+
+    fn_value_parameters(p);
+    // test fn_pointer_type_with_ret
+    // type F = fn() -> ();
+    fn_ret_type(p);
+    m.complete(p, FN_POINTER_TYPE);
+}
+
 fn path_type(p: &mut Parser) {
     assert!(p.at(IDENT));
     let m = p.start();