From 96d6a0a2b562f81c5c14532487ce03a1a9065e6b Mon Sep 17 00:00:00 2001
From: Arnaud Bailly <arnaud.bailly@iohk.io>
Date: Sun, 29 Sep 2024 17:26:45 +0200
Subject: Implement sub-process based tester

---
 rust/src/io.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'rust/src/io.rs')

diff --git a/rust/src/io.rs b/rust/src/io.rs
index 33d8c4e..435f32f 100644
--- a/rust/src/io.rs
+++ b/rust/src/io.rs
@@ -19,6 +19,32 @@ pub fn eval_file(file_name: &str) -> String {
         .join(" ")
 }
 
+pub fn batch_eval<I: Read, O: Write>(inp: &mut I, outp: &mut O) {
+    let mut env = Environment::new();
+    let mut reader = BufReader::new(inp);
+    loop {
+        let mut input = String::new();
+        outp.flush().unwrap();
+        match reader.read_line(&mut input) {
+            Ok(0) => break,
+            Ok(_) => (),
+            Err(e) => {
+                writeln!(outp, "{}", e).unwrap();
+                break;
+            }
+        }
+        let values = parse(&input);
+        let results = values
+            .iter()
+            .map(|v| eval(v, &mut env))
+            .collect::<Vec<Value>>();
+        for result in results {
+            writeln!(outp, "{}", result).unwrap();
+            outp.flush().unwrap();
+        }
+    }
+}
+
 pub fn repl<I: Read, O: Write>(inp: &mut I, outp: &mut O) {
     let mut env = Environment::new();
     let mut reader = BufReader::new(inp);
-- 
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