feat: 枚举 enum (P1 #7)

- lexer: TOK_ENUM, TOK_COLON_COLON - ast: AST_ENUM_DECL, AST_ENUM_VARIANT + AST_PROGRAM enums数组 - parser: enum Name { A, B } + Enum::Variant语法 - sema: SYM_ENUM, 变体验证, enum→i64类型兼容 - codegen: TYPE_ENUM→i64, 变体→ConstInt(索引值) - 新增集成测试: 17_enum.l 测试: 121 通过 (41+15+47+18)
2026-06-05 14:01:47 +08:00
parent ab88ea2753
commit 5237398245
14 changed files with 267 additions and 21 deletions
@@ -0,0 +1,6 @@
+enum Color { Red, Green, Blue }
+fn main() -> i64 {
+    let c = Color::Green;
+    print_i64(c);
+    return 0;
+}