From ceb94ece2aa6a1b54063c582663fff4c1937d989 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sun, 11 Feb 2018 11:19:54 +0300
Subject: G: pointer types

---
 src/parser/grammar/types.rs | 29 +++++++++++++++++++++++++++++
 src/syntax_kinds.rs         |  2 ++
 2 files changed, 31 insertions(+)

(limited to 'src')

diff --git a/src/parser/grammar/types.rs b/src/parser/grammar/types.rs
index 2ae583bd1..ceadf5f96 100644
--- a/src/parser/grammar/types.rs
+++ b/src/parser/grammar/types.rs
@@ -4,6 +4,7 @@ pub(super) fn type_(p: &mut Parser) {
     match p.current() {
         L_PAREN => paren_or_tuple_type(p),
         EXCL => never_type(p),
+        STAR => pointer_type(p),
         IDENT => path_type(p),
         _ => {
             p.error("expected type");
@@ -11,6 +12,10 @@ pub(super) fn type_(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();
@@ -53,6 +58,30 @@ fn never_type(p: &mut Parser) {
     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 path_type(p: &mut Parser) {
     assert!(p.at(IDENT));
     let m = p.start();
diff --git a/src/syntax_kinds.rs b/src/syntax_kinds.rs
index 630d3d2a5..181dcc63b 100644
--- a/src/syntax_kinds.rs
+++ b/src/syntax_kinds.rs
@@ -103,6 +103,7 @@ pub enum SyntaxKind {
     TUPLE_TYPE,
     NEVER_TYPE,
     PATH_TYPE,
+    POINTER_TYPE,
     EXTERN_BLOCK,
     ENUM_VARIANT,
     NAMED_FIELD,
@@ -232,6 +233,7 @@ impl SyntaxKind {
             TUPLE_TYPE => &SyntaxInfo { name: "TUPLE_TYPE" },
             NEVER_TYPE => &SyntaxInfo { name: "NEVER_TYPE" },
             PATH_TYPE => &SyntaxInfo { name: "PATH_TYPE" },
+            POINTER_TYPE => &SyntaxInfo { name: "POINTER_TYPE" },
             EXTERN_BLOCK => &SyntaxInfo { name: "EXTERN_BLOCK" },
             ENUM_VARIANT => &SyntaxInfo { name: "ENUM_VARIANT" },
             NAMED_FIELD => &SyntaxInfo { name: "NAMED_FIELD" },
-- 
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