From 04c7892134d49f3b295a51cc741affe9f02e374d Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Tue, 16 Aug 2022 05:42:36 +0200
Subject: nullish coalescing operator ??

---
 src/parse.cff | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/parse.cff b/src/parse.cff
index c331986..87ca850 100644
--- a/src/parse.cff
+++ b/src/parse.cff
@@ -414,9 +414,13 @@ fn lex(P *Parser) Tok {
    }
    switch c = chr(P) {
    case '(', ')', '[', ']', '{',
-        '}', ',', ';', '?', '~';
+        '}', ',', ';', '~';
       tok.t = c;
       return tok;
+   case '?';
+      if chrmatch(P, '?') { tok.t = '??'; }
+      else                { tok.t = '?'; }
+      return tok;
    case '.';
       if chrmatch(P, '.') {
          if chrmatch(P, '.') { tok.t = '...'; }
@@ -541,7 +545,7 @@ fn finddecl(P *Parser, name *const u8) *Decl {
       putprimtypes(primenv);
    }
    let p = envfind(primenv, name);
-   return p ? p : envfind(P.curenv, name);
+   return p ?? envfind(P.curenv, name);
 }
 
 fn putdecl(P *Parser, decl Decl) *Decl {
-- 
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