From 2923398158419e8acea88bd3642306a3e46da8d1 Mon Sep 17 00:00:00 2001
From: Nick Treleaven <ntrel002@gmail.com>
Date: Tue, 18 Oct 2022 17:34:48 +0100
Subject: [PATCH] Fix Issue 23426 - Example Run button shows wrong line numbers
 for errors

---
 js/run.js          | 1 +
 js/run_examples.js | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/js/run.js b/js/run.js
index f8f3f2011c..08bb3f630c 100644
--- a/js/run.js
+++ b/js/run.js
@@ -190,6 +190,7 @@ function wrapIntoMain(code) {
         var codeOut = "void main()\n{\n";
         // writing to the stdout is probably often used
         codeOut += "    import std.stdio: write, writeln, writef, writefln;\n    ";
+        codeOut += "#line 1\n";
         codeOut += code.split("\n").join("\n    ");
         codeOut += "\n}";
         return codeOut;
diff --git a/js/run_examples.js b/js/run_examples.js
index 3b90c3c6c6..063fea193a 100644
--- a/js/run_examples.js
+++ b/js/run_examples.js
@@ -22,6 +22,7 @@ function wrapIntoMain(code) {
     // dynamically wrap into main if needed
     if (code.indexOf("void main") >= 0) {
         codeOut = "import " + currentPackage + "; ";
+        codeOut += "#line 1\n";
         codeOut += code;
     }
     else {
@@ -29,6 +30,7 @@ function wrapIntoMain(code) {
         codeOut += "    import " + currentPackage + ";\n";
         // writing to the stdout is probably often used
         codeOut += (currentPackage == "std.file") ? "    import std.stdio: writeln, writef, writefln;\n    " : "    import std.stdio: write, writeln, writef, writefln;\n    ";
+        codeOut += "#line 1\n";
         codeOut += code.split("\n").join("\n    ");
         codeOut += "\n}";
     }