Reduce MSRV down to 1.53.0

.github/workflows/CI.yml

@@ -9,12 +9,12 @@ on:
 jobs:
   # == CHECK == #
   check:
-    name: "Check beta stable and MSRV=1.60.0"
+    name: "Check beta stable and MSRV=1.53.0"
     runs-on: ubuntu-latest
     strategy:
       matrix:
         rust-toolchains:
-          - 1.60.0
+          - 1.53.0
           - stable
           - beta
         cargo-locked: ["--locked", ""]
@@ -52,7 +52,7 @@ jobs:
           - macos-latest
           - windows-latest
         rust-toolchains:
-          - 1.60.0
+          - 1.53.0
           - stable
     steps:
       - name: Install Rust toolchain
@@ -65,17 +65,18 @@ jobs:
       - name: Clone repo
         uses: actions/checkout@v2
 
-      - name: Cargo test
+      - name: Cargo test (MSRV)
+        if: matrix.rust-toolchains == '1.53.0'
         uses: actions-rs/cargo@v1
         with:
           command: test
 
-      - name: Cargo test (embedded doc tests)
+      - name: Cargo test (full)
         if: matrix.rust-toolchains == 'stable'
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --features docs --doc
+          args: --features docs,test-lending-iterator-filter
 
   # == UI TESTS ==
   ui-test:

.github/workflows/future-proof.yml

@@ -21,7 +21,7 @@ jobs:
           - macos-latest
           - windows-latest
         rust-toolchains:
-          - 1.60.0
+          - 1.53.0
           - stable
           - beta
           - nightly
@@ -41,14 +41,16 @@ jobs:
         if: matrix.cargo-locked != '--locked'
         run: cargo update -v
 
-      - name: Cargo test
+      - name: Cargo test (MSRV)
+        if: matrix.rust-toolchains == '1.53.0'
         uses: actions-rs/cargo@v1
         with:
           command: test
           args: ${{ matrix.cargo-locked }}
 
-      - name: Cargo test (embed `README.md` + UI)
-        if: matrix.rust-toolchains != '1.60.0'
+      - name: Cargo test (full)
+        if: matrix.rust-toolchains != '1.53.0'
         uses: actions-rs/cargo@v1
         with:
-          command: test-ui
+          command: test
+          args: ${{ matrix.cargo-locked }} --features docs,test-lending-iterator-filter

Cargo.toml

@@ -23,15 +23,21 @@ debug-macros = [
     "nougat-proc_macros/debug-macros"
 ]
 
+test-lending-iterator-filter = [
+    "polonius-the-crab",
+]
+
 [dependencies]
-macro_rules_attribute.version = "0.1.0"
+macro_rules_attribute.version = "0.1.2"
+
+polonius-the-crab.version = "0.2.1"
+polonius-the-crab.optional = true
 
 [dependencies.nougat-proc_macros]
 path = "src/proc_macros"
 version = "0.2.0-rc1"  # Keep in sync
 
 [dev-dependencies]
-polonius-the-crab.version = "0.2.1"
 
 [workspace]
 members = [

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = '1.57.0'
+channel = '1.53.0'
 # Templated by `cargo-generate` using https://github.com/danielhenrymantilla/proc-macro-template

src/lib.rs

@@ -1,6 +1,8 @@
 //! [`Gat!`]: Gat
 //! [#\[gat\]]: gat
-#![doc = include_str!("../README.md")]
+#![cfg_attr(docs,
+    cfg_attr(all(), doc = include_str!("../README.md")),
+)]
 #![doc(html_logo_url = "https://user-images.githubusercontent.com/9920355/170709986-aaa13f92-0faf-4b5d-89c9-6463b6b3d49b.png")]
 #![deny(rustdoc::private_intra_doc_links)]
 
@@ -13,6 +15,7 @@
 /// ## Example(s)
 ///
 /** -  ```rust
+    # use ::core::convert::TryInto;
     # fn main() {}
     #[macro_use]
     extern crate nougat;
@@ -218,6 +221,6 @@ pub use ::nougat_proc_macros::Gat;
 pub use ::macro_rules_attribute::apply;
 
 #[cfg_attr(feature = "ui-tests",
-    doc = include_str!("compile_fail_tests.md"),
+    cfg_attr(all(), doc = include_str!("compile_fail_tests.md")),
 )]
 mod _compile_fail_tests {}

src/proc_macros/gat-attr/_mod.rs

@@ -143,7 +143,7 @@ impl visit_mut::VisitMut
         if  type_path.path.segments.first().unwrap().ident == "Self"
         &&  matches!(
                 type_path.path.segments.last().unwrap().arguments,
-                | PathArguments::AngleBracketed { .. }
+                PathArguments::AngleBracketed { .. }
             )
         {
             let Self_;

src/proc_macros/mod.rs

@@ -68,7 +68,7 @@ fn combine_trait_name_and_assoc_type (
 ) -> Ident
 {
     Ident::new(
-        &format!("{}__{}", trait_name, assoc_type),
+        &format!("{}ඞ{}", trait_name, assoc_type),
         assoc_type.span(), // .located_at(trait_name.span()),
     )
 }