feat: guard 语句 guard x >= 0 else { return -1; }

2026-06-05 20:49:03 +08:00
parent 18172ca724
commit c6e492662e
5 changed files with 27 additions and 3 deletions
@@ -56,7 +56,7 @@ static TokenKind check_keyword(const Token* tok) {
    #define KW(s, k) if (tok->length == sizeof(s)-1 && memcmp(tok->start, s, sizeof(s)-1) == 0) return k
    KW("fn",     TOK_FN);     KW("let",    TOK_LET);
    KW("var",    TOK_VAR);
-    KW("if",     TOK_IF);     KW("else",   TOK_ELSE);
+    KW("if",     TOK_IF);     KW("else",   TOK_ELSE);  KW("guard",  TOK_GUARD);
    KW("while",  TOK_WHILE);  KW("for",    TOK_FOR);  KW("in",     TOK_IN);
    KW("to",     TOK_TO);
 	    KW("return", TOK_RETURN);