Cramming PhysX in there

More PhysX work

More PhysX work

modules/PhysX/physx/physx-sys/pxbind/tests/structgen.rs

@@ -0,0 +1,88 @@
+fn gen_structgen(which: &str, _to_emit: &'static [&str]) -> anyhow::Result<String> {
+    let (ast, _) = pxbind::get_parsed_ast(format!("tests/data/{which}"))?;
+
+    let mut consumer = pxbind::consumer::AstConsumer::default();
+    consumer.consume(&ast)?;
+
+    let record_filter = |rb: &pxbind::consumer::RecBinding<'_>| rb.name().starts_with("Px");
+
+    let generator = pxbind::generator::Generator {
+        record_filter: Box::new(record_filter),
+        ..Default::default()
+    };
+
+    let structgen = {
+        let mut sg = Vec::new();
+        generator.generate_structgen(&consumer, &mut sg)?;
+        String::from_utf8(sg)?
+    };
+
+    Ok(structgen)
+}
+
+struct StructgenOut {
+    cpp: String,
+    rust: String,
+}
+
+fn run_structgen(sg: String) -> anyhow::Result<StructgenOut> {
+    let td = tempfile::tempdir()?;
+    let tp = td.path();
+    let sg_src = tp.join("structgen.cpp");
+
+    std::fs::write(&sg_src, sg)?;
+    std::fs::copy("tests/structgen.hpp", tp.join("structgen.hpp"))?;
+
+    // Compile the structgen program for the host target
+    let mut cmd = std::process::Command::new("clang++");
+    cmd.current_dir(&td);
+
+    let include_dir = pxbind::get_include_dir()?;
+    cmd.args([
+        "-fuse-ld=lld",
+        "-std=c++11",
+        "-fcolor-diagnostics",
+        "-o",
+        "structgen",
+        "-DNDEBUG",
+        "-I",
+    ]);
+    cmd.arg(include_dir);
+    cmd.arg(&sg_src);
+
+    anyhow::ensure!(cmd.status()?.success(), "failed to compile structgen");
+
+    let mut sg = std::process::Command::new(tp.join("structgen"));
+    sg.current_dir(tp);
+
+    anyhow::ensure!(sg.status()?.success(), "failed to run structgen");
+
+    let cpp = std::fs::read_to_string(tp.join("structgen_out.hpp"))?;
+    let rust = std::fs::read_to_string(tp.join("structgen_out.rs"))?;
+
+    Ok(StructgenOut { cpp, rust })
+}
+
+#[test]
+fn many_things() {
+    let sg = gen_structgen("functions/methods_complex.h", &[]).unwrap();
+
+    insta::assert_snapshot!(sg);
+
+    let generated = run_structgen(sg).unwrap();
+
+    insta::assert_snapshot!(generated.cpp);
+    insta::assert_snapshot!(generated.rust);
+}
+
+#[test]
+fn all_the_things() {
+    let sg = gen_structgen("all_the_things.h", &[]).unwrap();
+
+    insta::assert_snapshot!(sg);
+
+    let generated = run_structgen(sg).unwrap();
+
+    insta::assert_snapshot!(generated.cpp);
+    insta::assert_snapshot!(generated.rust);
+}