From 5b9e33b321973a2e2135eaeea0b4a92dcbec3e2d Mon Sep 17 00:00:00 2001
From: Nat Quayle Nelson <natquaylenelson@gmail.com>
Date: Mon, 6 Jun 2022 12:39:11 +0000
Subject: [PATCH] Reader throw error for pernicious "$" bug

---
 src/kiss/Reader.hx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/kiss/Reader.hx b/src/kiss/Reader.hx
index 8e79b1a..75add49 100644
--- a/src/kiss/Reader.hx
+++ b/src/kiss/Reader.hx
@@ -399,6 +399,9 @@ class Reader {
                     endCurrentStringPart();
                     var wrapInIf = false;
                     var firstAfterDollar = stream.expect('interpolation expression', () -> stream.peekChars(1));
+                    if (firstAfterDollar == '"') {
+                        throw new StreamError(pos, "$ at end of string should be prefixed with \\ or followed by an expression to interpolate");
+                    }
                     if (firstAfterDollar == "?") {
                         wrapInIf = true;
                         stream.dropChars(1);