fix(rivet+rivetc): avoid autoloading the core module when it is being compiled

Author: StunxFS

lib/rivet/src/Builder.ri

@@ -38,7 +38,11 @@ pub struct Builder {
     pub func run(mut self) -> ! {
         self.make_rivet_directory()!;
 
-        _ = self.load_module("core", "core", "", token.no_pos)!;
+        // if we are compiling the `core` module, avoid autoloading it
+        if self.env.prefs.mod_name != "core" {
+            _ = self.load_module("core", "core", "", token.no_pos)!;
+        }
+
         self.load_root_module()!;
         self.import_modules()!;
 

lib/rivet/src/parser/decls.ri

@@ -1,5 +1,5 @@
-// Copyright (C) 2023-present Jose Mendoza - All rights reserved. Use of this 
-// source code is governed by an MIT license that can be found in the LICENSE 
+// Copyright (C) 2023-present Jose Mendoza - All rights reserved. Use of this
+// source code is governed by an MIT license that can be found in the LICENSE
 // file.
 
 import std/strings;
@@ -658,6 +658,7 @@ extend Parser {
         }
         self.close_scope();
         self.inside_func = false;
+        is_main := self.mod_sym.is_root && self.mod_sym.name != "core" && name == "main";
         return .Func(
             docs: docs,
             abi: abi,
@@ -668,7 +669,7 @@ extend Parser {
             is_variadic: is_variadic,
             is_method: is_method,
             is_special_method: is_special_method,
-            is_main: self.mod_sym.is_root && name == "main",
+            is_main: is_main,
             is_operator: is_operator,
             name: name,
             args: args,

rivetc/src/__init__.py

@@ -124,9 +124,13 @@ def import_graph(self):
         return g
 
     def run(self):
-        self.parsed_files += self.load_module("core", "core", "", token.NO_POS)
+        # if we are compiling the `core` module, avoid autoloading it
+        if self.prefs.mod_name != "core":
+            self.parsed_files += self.load_module("core", "core", "", token.NO_POS)
+
         self.load_root_module()
         self.import_modules()
+
         if not self.prefs.check_syntax:
             self.vlog("registering symbols...")
             self.register.walk_files(self.source_files)

rivetc/src/parser.py

@@ -550,7 +550,7 @@ def parse_func_decl(
             doc_comment, attributes, is_public, self.inside_extern, is_unsafe,
             name, pos, args, ret_typ, stmts, sc, has_body, is_method,
             self_is_mut, self_is_ptr, has_named_args, self.mod_sym.is_root
-            and name == "main", is_variadic, abi
+            and self.mod_sym.name != "core" and name == "main", is_variadic, abi
         )
 
     # ---- statements --------------------------