From cdc9323cccdee544562712018f722026bdfbbd6c Mon Sep 17 00:00:00 2001
From: uki00a <uki00a@gmail.com>
Date: Wed, 20 May 2020 02:33:11 +0900
Subject: fix: REPL does not exit properly when close() is called (#5451)

---
 cli/js/repl.ts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'cli/js')

diff --git a/cli/js/repl.ts b/cli/js/repl.ts
index 138b30c3e..c84be68b1 100644
--- a/cli/js/repl.ts
+++ b/cli/js/repl.ts
@@ -32,6 +32,13 @@ function isRecoverableError(e: Error): boolean {
   return recoverableErrorMessages.includes(e.message);
 }
 
+// Returns `true` if `close()` is called in REPL.
+// We should quit the REPL when this function returns `true`.
+function isCloseCalled(): boolean {
+  // @ts-ignore
+  return globalThis.closed;
+}
+
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 type Value = any;
 
@@ -45,7 +52,9 @@ function evaluate(code: string): boolean {
   const [result, errInfo] = core.evalContext(code);
   if (!errInfo) {
     lastEvalResult = result;
-    replLog(result);
+    if (!isCloseCalled()) {
+      replLog(result);
+    }
   } else if (errInfo.isCompileError && isRecoverableError(errInfo.thrown)) {
     // Recoverable compiler error
     return false; // don't consume code.
@@ -110,6 +119,10 @@ export async function replLoop(): Promise<void> {
   replLog("exit using ctrl+d or close()");
 
   while (true) {
+    if (isCloseCalled()) {
+      quitRepl(0);
+    }
+
     let code = "";
     // Top level read
     try {
-- 
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