From 01969818aec859611ca1989783b6e0d7f81bdf9e Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Fri, 19 Aug 2022 06:50:12 +0200
Subject: alignof, offsetof

---
 src/parse.cff | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

(limited to 'src/parse.cff')

diff --git a/src/parse.cff b/src/parse.cff
index a2071f8..b42d45a 100644
--- a/src/parse.cff
+++ b/src/parse.cff
@@ -141,10 +141,10 @@ fn eatspaces(P *Parser) void {
 
 // !sorted
 extern static keyword2str [NUM_KEYWORDS]*const u8 = {
-   "and", "as", "break", "case", "const",
+   "alignof", "and", "as", "break", "case", "const",
    "continue", "def", "defmacro", "do",
    "else", "enum", "extern", "fn",
-   "for", "if", "import", "let",
+   "for", "if", "import", "let", "offsetof",
    "or", "return", "sizeof", "static",
    "struct", "switch", "typedef", "typeof",
    "union", "while",
@@ -1152,6 +1152,20 @@ fn pexprimary(P *Parser) Expr {
       }
       ex = { tok.loc, ty_usize, :IntLit { ty.size }};
 
+   case :kw_alignof;
+      let ty *const Type #?;
+      if lexmatch(P, &tok, '(') {
+         let ex = parseexpr(P);
+         lexexpect(P, ')');
+         ty = ex.ty;
+      } else {
+         ty = parsetype(P);
+      }
+      if !completetype(ty) {
+         err(P, tok.loc, "alignof incomplete type (%t)", ty);
+      }
+      ex = { tok.loc, ty_usize, :IntLit { ty.align }};
+
    case '(';
       if lexmatch(P, &tok, :kw_do) {
          let st = parseblock0(P);
-- 
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