From d19e5d84ee21502fd3440511d4ffb1ee1f49d3b2 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Wed, 4 Feb 2026 00:27:16 +0800
Subject: Refactor build system and implement complete renderer system

- Split monolithic build.rs into modular async generators
- Add renderer override system with type-safe dispatch
- Implement command template macro for consistent command definitions
- Add proc-macro crates for command and renderer systems
- Reorganize directory structure for better separation of concerns
- Update documentation to reflect new architecture
---
 src/systems/cmd/errors.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/systems/cmd/errors.rs')

diff --git a/src/systems/cmd/errors.rs b/src/systems/cmd/errors.rs
index 358d15a..7ec5e1c 100644
--- a/src/systems/cmd/errors.rs
+++ b/src/systems/cmd/errors.rs
@@ -76,6 +76,12 @@ pub enum CmdRenderError {
 
     #[error("Renderer `{0}` not found")]
     RendererNotFound(String),
+
+    #[error("Type mismatch: expected `{expected:?}`, got `{actual:?}`")]
+    TypeMismatch {
+        expected: std::any::TypeId,
+        actual: std::any::TypeId,
+    },
 }
 
 impl CmdRenderError {
@@ -109,6 +115,12 @@ pub enum CmdProcessError {
 
     #[error("Parse error")]
     ParseError(String),
+
+    #[error("Renderer override mode is active, but user requested help")]
+    RendererOverrideButRequestHelp,
+
+    #[error("Downcast failed")]
+    DowncastFailed,
 }
 
 impl CmdProcessError {
-- 
cgit