build.yml

name: Build

on:
  push:
    branches:
      - master
    paths:
      - "**/*.rs"
      - "**/*.toml"
      - "**/*.java"
  pull_request:
    paths:
      - "**/*.rs"
      - "**/*.toml"
      - "**/*.java"
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Java
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: "21"

      - name: Set up Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: cargo-${{ runner.os }}-${{ hashFiles('Cargo.lock') }}
          restore-keys: |
            cargo-${{ runner.os }}-

      - name: Build workspace
        run: cargo build --workspace --locked

      - name: Test workspace
        run: cargo test --workspace --locked

      - name: Verify compiler example
        shell: bash
        run: |
          mkdir -p target/ci-input target/compiler-example
          printf 'public class DemoApp {}\n' > target/ci-input/DemoApp.java

          cargo run --locked --example compiler-example -- \
            --output-dir target/compiler-example \
            target/ci-input/DemoApp.java

          javap -v -c target/compiler-example/DemoApp.class

          cat > target/compiler-example/LoadDemoApp.java <<'JAVA'
          public class LoadDemoApp {
              public static void main(String[] args) throws Exception {
                  Class.forName("DemoApp");
              }
          }
          JAVA

          javac -cp target/compiler-example \
            -d target/compiler-example \
            target/compiler-example/LoadDemoApp.java

          java -Xverify:all -cp target/compiler-example LoadDemoApp