init WIP add proc_macro generator generator

.gitignore

@@ -1,2 +1,3 @@
-/target
+target
 **/*.rs.bk
+.vscode

Cargo.toml

@@ -16,6 +16,10 @@ include = ["Cargo.toml", "README-crates-io.md", "src/**/*.rs"]
 
 [dependencies]
 futures-core = { version = "0.3.1", optional = true }
+gen_proc_macro = { path = "./gen_proc_macro" }
+
+[workspace]
+members = [ "gen_proc_macro" ]
 
 [dev-dependencies]
 futures = "0.3.1"

examples/await.rs

@@ -0,0 +1,57 @@
+#![feature(async_closure)]
+#![feature(proc_macro_hygiene)]
+#![feature(generators)]
+
+use genawaiter::{
+    generator_mut,
+    stack::{Co, Gen, Shelf},
+    // sync::{Gen, Co},
+};
+
+use gen_proc_macro::{yielder_cls, yielder_fn};
+
+#[yielder_fn(u8)]
+async fn odds() {
+    for n in (1_u8..).step_by(2).take_while(|&n| n < 10) {
+        yield n;
+    }
+}
+
+fn main() {
+    #[yielder_cls(u8)]
+    let hello = async move |co: Co<'static, u8>| {
+        let mut n = 1_u8;
+        while n < 10 {
+            yield n;
+            n += 2;
+        }
+    };
+
+    // let hello = async move |co: Co<'_, (), String>| {
+    //     let x = co.yield_(()).await;
+    //     println!("{}", x)
+    // };
+    // generator_mut!(gen, hello);
+    // gen.resume_with("hello".to_string());
+
+    let mut shelf = Shelf::new();
+    #[yielder_cls(u8)]
+    let gen = unsafe { Gen::new(&mut shelf, async move || {
+        let mut n = 1_u8;
+        while n < 10 {
+            yield n;
+            n += 2;
+        }
+    }) };
+    // let gen = Gen::new(odds);
+
+    // generator_mut!(test, hello);
+
+    //generator_mut!(gen, odds);
+
+    for x in gen {
+        println!("{}", x);
+    }
+    assert!(true);
+    assert_eq!(0, 0)
+}

gen_proc_macro/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "gen_proc_macro"
+version = "0.0.0"
+authors = ["Devin R <[email protected]>"]
+description = "procedural macro for generators (genawaiter)"
+keywords = ["proc_macro", "procmacro", "async"]
+edition = "2018"
+
+[lib]
+proc-macro = true
+
+[dependencies]
+quote = "1"
+proc-macro2 = "1.0"
+syn = {version = "1.0", features = [
+    "derive",
+    "parsing",
+    "printing",
+    "extra-traits",
+    "full",
+    "visit-mut",
+    "clone-impls"
+] }
+proc-macro-error = "0.4"