From 3a7f07c62d3dd253d63c483ee291d9471f539479 Mon Sep 17 00:00:00 2001
From: Unreal Hoang <unrealhoang@gmail.com>
Date: Sat, 20 Jul 2019 17:41:31 +0900
Subject: add await to syntax, parser for await_expr

---
 crates/ra_parser/src/grammar/expressions.rs   | 12 ++++++++++++
 crates/ra_parser/src/syntax_kind/generated.rs |  7 +++++++
 2 files changed, 19 insertions(+)

(limited to 'crates/ra_parser/src')

diff --git a/crates/ra_parser/src/grammar/expressions.rs b/crates/ra_parser/src/grammar/expressions.rs
index 298030cb9..3e49e70c7 100644
--- a/crates/ra_parser/src/grammar/expressions.rs
+++ b/crates/ra_parser/src/grammar/expressions.rs
@@ -393,6 +393,18 @@ fn postfix_expr(
             T![.] if p.nth(1) == IDENT && (p.nth(2) == T!['('] || p.nth(2) == T![::]) => {
                 method_call_expr(p, lhs)
             }
+            T![.] if p.nth(1) == AWAIT_KW => {
+                // test await_expr
+                // fn foo() {
+                //     x.await;
+                //     x.0.await;
+                //     x.0().await?.hello();
+                // }
+                let m = lhs.precede(p);
+                p.bump();
+                p.bump();
+                m.complete(p, AWAIT_EXPR)
+            }
             T![.] => field_expr(p, lhs),
             // test postfix_range
             // fn foo() { let x = 1..; }
diff --git a/crates/ra_parser/src/syntax_kind/generated.rs b/crates/ra_parser/src/syntax_kind/generated.rs
index 374fd5aec..4b5abb516 100644
--- a/crates/ra_parser/src/syntax_kind/generated.rs
+++ b/crates/ra_parser/src/syntax_kind/generated.rs
@@ -105,6 +105,7 @@ pub enum SyntaxKind {
     RETURN_KW,
     TRY_KW,
     BOX_KW,
+    AWAIT_KW,
     AUTO_KW,
     DEFAULT_KW,
     EXISTENTIAL_KW,
@@ -193,6 +194,7 @@ pub enum SyntaxKind {
     INDEX_EXPR,
     METHOD_CALL_EXPR,
     FIELD_EXPR,
+    AWAIT_EXPR,
     TRY_EXPR,
     CAST_EXPR,
     REF_EXPR,
@@ -338,6 +340,7 @@ macro_rules! T {
     (return) => { $crate::SyntaxKind::RETURN_KW };
     (try) => { $crate::SyntaxKind::TRY_KW };
     (box) => { $crate::SyntaxKind::BOX_KW };
+    (await) => { $crate::SyntaxKind::AWAIT_KW };
     (auto) => { $crate::SyntaxKind::AUTO_KW };
     (default) => { $crate::SyntaxKind::DEFAULT_KW };
     (existential) => { $crate::SyntaxKind::EXISTENTIAL_KW };
@@ -398,6 +401,7 @@ impl SyntaxKind {
             | RETURN_KW
             | TRY_KW
             | BOX_KW
+            | AWAIT_KW
             | AUTO_KW
             | DEFAULT_KW
             | EXISTENTIAL_KW
@@ -572,6 +576,7 @@ impl SyntaxKind {
             RETURN_KW => &SyntaxInfo { name: "RETURN_KW" },
             TRY_KW => &SyntaxInfo { name: "TRY_KW" },
             BOX_KW => &SyntaxInfo { name: "BOX_KW" },
+            AWAIT_KW => &SyntaxInfo { name: "AWAIT_KW" },
             AUTO_KW => &SyntaxInfo { name: "AUTO_KW" },
             DEFAULT_KW => &SyntaxInfo { name: "DEFAULT_KW" },
             EXISTENTIAL_KW => &SyntaxInfo { name: "EXISTENTIAL_KW" },
@@ -660,6 +665,7 @@ impl SyntaxKind {
             INDEX_EXPR => &SyntaxInfo { name: "INDEX_EXPR" },
             METHOD_CALL_EXPR => &SyntaxInfo { name: "METHOD_CALL_EXPR" },
             FIELD_EXPR => &SyntaxInfo { name: "FIELD_EXPR" },
+            AWAIT_EXPR => &SyntaxInfo { name: "AWAIT_EXPR" },
             TRY_EXPR => &SyntaxInfo { name: "TRY_EXPR" },
             CAST_EXPR => &SyntaxInfo { name: "CAST_EXPR" },
             REF_EXPR => &SyntaxInfo { name: "REF_EXPR" },
@@ -752,6 +758,7 @@ impl SyntaxKind {
             "return" => RETURN_KW,
             "try" => TRY_KW,
             "box" => BOX_KW,
+            "await" => AWAIT_KW,
             _ => return None,
         };
         Some(kw)
-- 
cgit v1.2.3