From b91f650ffc767002449b01f25c31ae52a508a6c3 Mon Sep 17 00:00:00 2001
From: Timothy Johnson <timothy@idioticdev.com>
Date: Thu, 22 Nov 2018 10:29:08 -0800
Subject: [PATCH] Disable warnings through comments.

---
 src/compile/index.ts | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/compile/index.ts b/src/compile/index.ts
index 59e204b816..a851a10fba 100644
--- a/src/compile/index.ts
+++ b/src/compile/index.ts
@@ -11,13 +11,24 @@ function normalize_options(options: CompileOptions): CompileOptions {
 	let normalized = assign({ generate: 'dom', dev: false }, options);
 	const { onwarn } = normalized;
 
-	normalized.onwarn = onwarn
-		? (warning: Warning) => onwarn(warning, default_onwarn)
-		: default_onwarn;
+	normalized.onwarn = (warning: Warning) => {
+		if (!should_ignore(warning)) {
+			onwarn ? onwarn(warning, default_onwarn) : default_onwarn(warning);
+		}
+	}
 
 	return normalized;
 }
 
+function should_ignore({ start, code, frame }: Warning) {
+	if (!(start && code && frame)) {
+		return false;
+	}
+
+	const regex = new RegExp(`(?:${start.line - 1}:\\s*|${start.line}:[^\\n]+)<!--\\s*warn-disable\\s+${code}.*?-->`);
+	return regex.test(frame);
+}
+
 function default_onwarn({ start, message }: Warning) {
 	if (start) {
 		console.warn(`(${start.line}:${start.column}) – ${message}`);