Allow source map helpers to fail gracefully for non-string content.

standard-things · Jan 3, 2018 · ce81a9b · ce81a9b
1 parent c37e118
commit ce81a9b
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/src/util/create-source-map.js b/src/util/create-source-map.js
@@ -6,7 +6,7 @@ function createSourceMap(filePath, content) {
   let lineCount = -1
   let mapping = ""
 
-  while (newlineRegExp.test(content)) {
+  while (newlineRegExp.test(content) || lineCount < 0) {
     mapping += (++lineCount ? ";" : "") + "AA" + (lineCount ? "C" : "A") + "A"
   }
 

diff --git a/src/util/get-source-mapping-url.js b/src/util/get-source-mapping-url.js
@@ -13,6 +13,10 @@ const minLength = nameLength + 6
 const { trim } = String.prototype
 
 function getSourceMappingURL(content) {
+  if (typeof content !== "string") {
+    return ""
+  }
+
   const { length } = content
 
   if (length < minLength) {