From 2aa62902447760764e7a763dea322145d9c4808c Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Mon, 2 Jul 2018 18:02:03 +0200
Subject: Add stack traces to JS error messages.

---
 source/pdf/js/util.js   | 5 +++++
 source/pdf/js/util.js.h | 5 +++++
 2 files changed, 10 insertions(+)

(limited to 'source')

diff --git a/source/pdf/js/util.js b/source/pdf/js/util.js
index e2c00169..03e4a61b 100644
--- a/source/pdf/js/util.js
+++ b/source/pdf/js/util.js
@@ -1,3 +1,8 @@
+Error.prototype.toString = function() {
+	if (this.stackTrace) return this.name + ': ' + this.message + this.stackTrace;
+	return this.name + ': ' + this.message;
+};
+
 var MuPDF = {
 	monthPattern: /Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec/,
 	monthName: [
diff --git a/source/pdf/js/util.js.h b/source/pdf/js/util.js.h
index 9ef529dc..de27f97d 100644
--- a/source/pdf/js/util.js.h
+++ b/source/pdf/js/util.js.h
@@ -1,3 +1,8 @@
+"Error.prototype.toString = function() {\n"
+"if (this.stackTrace) return this.name + ': ' + this.message + this.stackTrace;\n"
+"return this.name + ': ' + this.message;\n"
+"};\n"
+"\n"
 "var MuPDF = {\n"
 "monthPattern: /Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec/,\n"
 "monthName: [\n"
-- 
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