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fix: P1审查修复 — error.c arena化 + Self类型解析 + trait查找加固 + 缓冲区安全

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P1-①: error_init/add 从 malloc/realloc/strdup 改为 arena_alloc/arena_strdup
P1-②: impl 方法中 Self 类型在 sema 解析为实际结构体名
P1-③: trait 方法 fallback 增加前缀校验(strncmp)，method_name 统一更新
P1-④: codegen args[16] 增加溢出检查，移除 parser 未使用的 mods/uses 数组
新增: 36_self_type.l 集成测试（Self 类型 + trait 方法）

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
刘航宇
2026-06-06 17:09:28 +08:00
parent 17c19fd9b9
commit 466be76fd8
9 changed files with 99 additions and 56 deletions
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src/parser/parser.c
+4 -14
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@@ -1031,8 +1031,6 @@ AstNode* parse(Arena* a, const Token* tokens, size_t count,
AstNode* aliases[64]; int alias_count = 0;
AstNode* enums[64]; int enum_count = 0;
AstNode* impls[64]; int impl_count = 0;
AstNode* mods[64]; int mod_count = 0;
AstNode* uses[64]; int use_count = 0;
while (peek(&p)->kind != TOK_EOF && !error->message) {
// pub 前缀
bool is_pub = false;
@@ -1179,20 +1177,12 @@ AstNode* parse(Arena* a, const Token* tokens, size_t count,
if (enum_count >= 64) break;
enums[enum_count++] = sub->as.program.enums[i];
}
if (mod_count < 64) mods[mod_count++] = ast_make_mod_decl(a, mod_name, sub, tok_loc(mn));
/* mod 内容已内联合并到当前文件 */ ;
} else if (peek(&p)->kind == TOK_USE) {
/* TODO: use 语句待实现符号导入 */ ;
advance(&p);
const Token* path_tok = expect(&p, TOK_IDENT, error, "use 后应为模块名");
if (!path_tok) return NULL;
if (!expect(&p, TOK_COLON_COLON, error, "缺少 '::'")) return NULL;
const Token* item_tok = expect(&p, TOK_IDENT, error, "use 后应为项目名");
if (!item_tok) return NULL;
if (!expect(&p, TOK_SEMICOLON, error, "缺少 ';'")) return NULL;
if (use_count >= 64) { error->message = "use 过多 (最多64)"; error->filename = p.filename; error->line = peek(&p)->line; error->col = peek(&p)->col; return NULL; }
uses[use_count++] = ast_make_use_decl(a,
arena_strdup_impl(p.arena, path_tok->start, path_tok->length),
arena_strdup_impl(p.arena, item_tok->start, item_tok->length),
tok_loc(path_tok));
while (peek(&p)->kind != TOK_SEMICOLON && peek(&p)->kind != TOK_EOF) advance(&p);
if (peek(&p)->kind == TOK_SEMICOLON) advance(&p);
} else if (peek(&p)->kind == TOK_FN) {
if (fn_count >= 256) { error->message = "函数过多 (最多256)"; error->filename = p.filename; error->line = peek(&p)->line; error->col = peek(&p)->col; return NULL; }
functions[fn_count++] = parse_function(&p, is_pub, error);