ci: add action (#14)

* ci: add action

* fix: direct impl of ToString

.github/workflows/ci_check.yml

@@ -0,0 +1,36 @@
+name: Check
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
+  cancel-in-progress: true
+
+env:
+  RUST_BACKTRACE: 1
+
+jobs:
+  check:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Rust Toolchain
+        run: |
+          rustup toolchain install nightly
+          rustup +nightly component add clippy
+      - name: Check clippy
+        run: |
+          cargo +nightly clippy --all-features --all-targets -- -Dwarnings
+      - name: Check Docs
+        run: |
+          cargo +nightly doc --workspace --all-features --no-deps

src/model/mod.rs

@@ -106,11 +106,11 @@ pub enum IntOrStr {
     Str(String),
 }
 
-impl ToString for IntOrStr {
-    fn to_string(&self) -> String {
+impl Display for IntOrStr {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            IntOrStr::Int(i) => i.to_string(),
-            IntOrStr::Str(s) => s.clone(),
+            IntOrStr::Int(i) => write!(f, "{i}"),
+            IntOrStr::Str(s) => write!(f, "{s}"),
         }
     }
 }