Experiment with nested source authoring against source3 models

experiments/source-authoring/src/main.rs

@@ -0,0 +1,31 @@
+//! One-file command-line harness for inspecting the actual lowering result.
+use oa_core::{language, source_project::SourceBundle};
+use std::{collections::BTreeMap, env, fs, process::ExitCode};
+
+fn main() -> ExitCode {
+    let args: Vec<_> = env::args().skip(1).collect();
+    if args.len() != 1 {
+        eprintln!(
+            "Usage: source-authoring-experiment B_SOURCE_FILE\nIncludes require the library's explicit SourceBundle API."
+        );
+        return ExitCode::FAILURE;
+    }
+    let result = fs::read_to_string(&args[0])
+        .map_err(|error| error.to_string())
+        .and_then(|text| {
+            source_authoring_experiment::compile(&SourceBundle {
+                entry: "project.arcadia".into(),
+                files: BTreeMap::from([("project.arcadia".into(), text)]),
+            })
+        });
+    match result {
+        Ok(project) => {
+            print!("{}", language::format(&project));
+            ExitCode::SUCCESS
+        }
+        Err(error) => {
+            eprintln!("{error}");
+            ExitCode::FAILURE
+        }
+    }
+}