From aed9d51bbf05f696154b440cb2f46392484c5e37 Mon Sep 17 00:00:00 2001
From: Douglas Christopher Wilson <doug@somethingdoug.com>
Date: Fri, 27 Sep 2019 11:47:28 -0400
Subject: [PATCH] deps: handlebars@4.3.3

fixes #176
closes #175
closes #178
closes #179
---
 HISTORY.md   |  4 +++-
 lib/hbs.js   | 25 +++++++++++++++++++------
 package.json |  2 +-
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/HISTORY.md b/HISTORY.md
index 21e363e..7d9eab6 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -4,7 +4,9 @@ unreleased
   * Fix async helpers not working when cache enabled
   * Fix handling of exceptions from layout
   * Fix handling of exceptions when cache enabled
-  * deps: handlebars@4.1.2
+  * deps: handlebars@4.3.3
+    - Block calling `helperMissing` and `blockHelperMissing` from templates
+    - Fix work-around for `constructor` blocking
   * deps: walk@2.3.14
 
 4.0.4 / 2019-04-14
diff --git a/lib/hbs.js b/lib/hbs.js
index eabea94..ed941a3 100644
--- a/lib/hbs.js
+++ b/lib/hbs.js
@@ -56,8 +56,7 @@ function middleware(filename, options, cb) {
           cb(null, res)
         })
       } catch (err) {
-        err.message = filename + ': ' + err.message
-        cb(err)
+        cb(prependFilenameToError(filename, err))
       }
 
       return
@@ -83,8 +82,7 @@ function middleware(filename, options, cb) {
           cb(null, res);
         });
       } catch (err) {
-        err.message = filename + ': ' + err.message;
-        cb(err);
+        cb(prependFilenameToError(filename, err))
       }
     });
   }
@@ -108,8 +106,7 @@ function middleware(filename, options, cb) {
           cb(null, res)
         })
       } catch (err) {
-        err.message = filename + ': ' + err.message
-        cb(err)
+        cb(prependFilenameToError(filename, err))
       }
     });
   }
@@ -151,6 +148,22 @@ function middleware(filename, options, cb) {
 
   // TODO check if layout path has .hbs extension
 
+  function prependFilenameToError (filename, err) {
+    // prepend to the message
+    err.message = filename + ': ' + err.message
+
+    // restore error message on stack (https://github.com/wycats/handlebars.js/issues/1562)
+    if (typeof err.stack === 'string' && err.stack.indexOf(err.name + '\n') === 0 && err.stack.indexOf(err.message) === -1) {
+      Object.defineProperty(err, 'stack', {
+        configurable: true,
+        value: err.name + ': ' + err.message,
+        writable: true
+      })
+    }
+
+    return err
+  }
+
   function cacheAndCompile(filename, str) {
     var layout_template = handlebars.compile(str);
     if (options.cache) {
diff --git a/package.json b/package.json
index b4a83aa..848cc43 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "repository": "pillarjs/hbs",
   "main": "lib/hbs.js",
   "dependencies": {
-    "handlebars": "4.1.2",
+    "handlebars": "4.3.3",
     "walk": "2.3.14"
   },
   "devDependencies": {