From bf5f93cb4e3947a6f214ffae72d38f18b758b00c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B0=8F=E7=99=BD=E4=BA=91?=
 <71159641+littlewhitecloud@users.noreply.github.com>
Date: Sun, 22 Oct 2023 16:23:22 +0800
Subject: [PATCH] Add files via upload

---
 src/main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index 190b6899..410e9e9c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -365,12 +365,13 @@ static void add_imported_symbol(struct FileState *fs, const ExportSymbol *es, As
 
 static void add_imported_symbols(struct CompileState *compst)
 {
-    // TODO: should it be possible for a file to import from itself?
-    // Should fail with error?
     for (struct FileState *to = compst->files.ptr; to < End(compst->files); to++) {
         for (AstImport *imp = to->ast.imports.ptr; imp < End(to->ast.imports); imp++) {
             struct FileState *from = find_file(compst, imp->resolved_path);
             assert(from);
+            if (from->path == to->path) {
+                fail_with_error(imp->location, "the file itself cannot be imported");
+            }
 
             for (struct ExportSymbol *es = from->pending_exports; es->name[0]; es++) {
                 if (command_line_args.verbosity >= 2) {