Add global resource system to Program

1 files changed, 50 insertions, 0 deletions

diff --git a/docs/res/changlog_examples/feat_program_res.rs b/docs/res/changlog_examples/feat_program_res.rs
new file mode 100644
index 0000000..b3533f1
--- /dev/null
+++ b/docs/res/changlog_examples/feat_program_res.rs
@@ -0,0 +1,50 @@
+use mingling::{
+    macros::{chain, dispatcher, gen_program, pack, r_println, renderer},
+    parser::Picker,
+    this,
+};
+
+// Define a struct with Default and Clone derives
+#[derive(Debug, Default, Clone)]
+struct Global {
+    name: String,
+    age: i32,
+}
+
+fn main() {
+    let mut program = ThisProgram::new();
+
+    // Add a global resource here
+    program.with_resource(Global::default());
+
+    program.exec();
+}
+
+dispatcher!("modify", ResModifyCommand => ResModifyEntry);
+
+pack!(DisplayGlobal = ());
+
+#[chain]
+fn modify(prev: ResModifyEntry) {
+    let (name, age) = Picker::<()>::new(prev.inner)
+        .pick::<String>("--name")
+        .pick::<i32>("--age")
+        .unpack_directly();
+
+    // Modify the global resource
+    this::<ThisProgram>().modify_res(|r: &mut Global| {
+        r.name = name;
+        r.age = age
+    });
+
+    DisplayGlobal::default()
+}
+
+#[renderer]
+fn render_global(_prev: DisplayGlobal) {
+    // Read the global resource
+    let global = this::<ThisProgram>().res_or_default::<Global>();
+    r_println!("Name: {}, Age: {}", global.name, global.age)
+}
+
+gen_program!();