From c81485b6ae1ba80d658ad8e4482d384303b539ef Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Tue, 21 Jul 2026 03:46:06 +0800
Subject: feat(core)!: replace RenderResult with buffered output model

Remove `Deref<Target=str>` and `render_text:String` in favor of
`render_buffer:Vec<(String, RenderResultMode)>` and an
`immediate_output`
flag. Add `RenderResultMode` enum, `r_eprint!`/`r_eprintln!` macros, and
new buffer manipulation methods (`append_to_buffer`, `eprint`, etc.).
Update `Display` to trim output and remove trailing newline. Migrate all
callers and tests away from `Deref` usage.
---
 mingling_core/tests/test-all/tests/integration.rs                 | 8 ++++----
 mingling_core/tests/test-basic/tests/integration.rs               | 2 +-
 mingling_core/tests/test-dispatch-tree/tests/integration.rs       | 2 +-
 mingling_core/tests/test-repl/tests/integration.rs                | 2 +-
 mingling_core/tests/test-structural-renderer/tests/integration.rs | 5 +++--
 5 files changed, 10 insertions(+), 9 deletions(-)

(limited to 'mingling_core/tests')

diff --git a/mingling_core/tests/test-all/tests/integration.rs b/mingling_core/tests/test-all/tests/integration.rs
index 3581702..08703b0 100644
--- a/mingling_core/tests/test-all/tests/integration.rs
+++ b/mingling_core/tests/test-all/tests/integration.rs
@@ -1,13 +1,13 @@
 use mingling::Flag;
-use mingling::StructuralRenderer;
-use mingling::StructuralRendererSetting;
 use mingling::MockProgramCollect;
 use mingling::NextProcess;
-use mingling::StructuralData;
 use mingling::Node;
 use mingling::Program;
 use mingling::RenderResult;
 use mingling::StringVec;
+use mingling::StructuralData;
+use mingling::StructuralRenderer;
+use mingling::StructuralRendererSetting;
 use mingling::comp::{ShellContext, ShellFlag, Suggest};
 use mingling::core_res::ResREPL;
 use mingling::hook::ProgramHook;
@@ -86,7 +86,7 @@ fn test_render_result_default() {
 fn test_render_result_print() {
     let mut r = RenderResult::default();
     r.print("hello");
-    assert_eq!(&*r, "hello");
+    assert_eq!(r.to_string().as_str(), "hello");
 }
 
 // StructuralRenderer
diff --git a/mingling_core/tests/test-basic/tests/integration.rs b/mingling_core/tests/test-basic/tests/integration.rs
index 7cd7b8c..e51992c 100644
--- a/mingling_core/tests/test-basic/tests/integration.rs
+++ b/mingling_core/tests/test-basic/tests/integration.rs
@@ -60,7 +60,7 @@ fn test_render_result_default() {
 fn test_render_result_print() {
     let mut r = RenderResult::default();
     r.print("hello");
-    assert_eq!(&*r, "hello");
+    assert_eq!(r.to_string().as_str(), "hello");
 }
 
 #[test]
diff --git a/mingling_core/tests/test-dispatch-tree/tests/integration.rs b/mingling_core/tests/test-dispatch-tree/tests/integration.rs
index 7cd7b8c..e51992c 100644
--- a/mingling_core/tests/test-dispatch-tree/tests/integration.rs
+++ b/mingling_core/tests/test-dispatch-tree/tests/integration.rs
@@ -60,7 +60,7 @@ fn test_render_result_default() {
 fn test_render_result_print() {
     let mut r = RenderResult::default();
     r.print("hello");
-    assert_eq!(&*r, "hello");
+    assert_eq!(r.to_string().as_str(), "hello");
 }
 
 #[test]
diff --git a/mingling_core/tests/test-repl/tests/integration.rs b/mingling_core/tests/test-repl/tests/integration.rs
index 1792525..4de0e8f 100644
--- a/mingling_core/tests/test-repl/tests/integration.rs
+++ b/mingling_core/tests/test-repl/tests/integration.rs
@@ -59,5 +59,5 @@ fn test_render_result_default() {
 fn test_render_result_print() {
     let mut r = RenderResult::default();
     r.print("hello");
-    assert_eq!(&*r, "hello");
+    assert_eq!(r.to_string().as_str(), "hello");
 }
diff --git a/mingling_core/tests/test-structural-renderer/tests/integration.rs b/mingling_core/tests/test-structural-renderer/tests/integration.rs
index 3c3c6db..0bcf53a 100644
--- a/mingling_core/tests/test-structural-renderer/tests/integration.rs
+++ b/mingling_core/tests/test-structural-renderer/tests/integration.rs
@@ -1,4 +1,4 @@
-use mingling::{StructuralRenderer, StructuralRendererSetting, RenderResult, StructuralData};
+use mingling::{RenderResult, StructuralData, StructuralRenderer, StructuralRendererSetting};
 use serde::Serialize;
 
 #[derive(Debug, Clone, PartialEq, Serialize, StructuralData)]
@@ -17,7 +17,8 @@ fn test_data() -> TestData {
 #[test]
 fn test_render_disable() {
     let mut r = RenderResult::default();
-    let result = StructuralRenderer::render(&test_data(), &StructuralRendererSetting::Disable, &mut r);
+    let result =
+        StructuralRenderer::render(&test_data(), &StructuralRendererSetting::Disable, &mut r);
     assert!(result.is_ok());
     assert!(r.is_empty());
 }
-- 
cgit