From 2c85346174978d9b4686ab3dfdda13bb9bad4629 Mon Sep 17 00:00:00 2001
From: muji <muji@tmpfs.org>
Date: Sun, 18 Oct 2020 12:59:36 +0800
Subject: [PATCH] Try to detect stack overflows and fail.

See https://github.com/sunng87/handlebars-rust/issues/386.
---
 components/compiler/src/compile.rs             |  3 +++
 .../compiler/src/hbs/helpers/document.rs       | 18 ++++++++++--------
 components/compiler/src/hbs/helpers/mod.rs     |  1 +
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/components/compiler/src/compile.rs b/components/compiler/src/compile.rs
index 63e6b0ad..49ceef57 100644
--- a/components/compiler/src/compile.rs
+++ b/components/compiler/src/compile.rs
@@ -59,6 +59,9 @@ where
         let mut errs: Vec<Error> = Vec::new();
         rx.iter().for_each(|(p, r)| {
             if r.is_err() {
+                //if fail_fast {
+                    //panic!(r.err());
+                //}
                 errs.push(r.err().unwrap());
             } else {
                 let res = r.unwrap();
diff --git a/components/compiler/src/hbs/helpers/document.rs b/components/compiler/src/hbs/helpers/document.rs
index eeb8a5fb..26384860 100644
--- a/components/compiler/src/hbs/helpers/document.rs
+++ b/components/compiler/src/hbs/helpers/document.rs
@@ -80,15 +80,17 @@ impl HelperDef for Block {
         rc: &mut RenderContext<'reg, 'rc>,
         out: &mut dyn Output,
     ) -> HelperResult {
+
         let template_path = rc.evaluate(ctx, "@root/file.template")?
-                .as_json()
-                .as_str()
-                .ok_or_else(|| {
-                    RenderError::new(
-                        "Type error for `file.template`, string expected",
-                    )
-                })?
-                .to_string();
+            .as_json()
+            .as_str()
+            .ok_or_else(|| {
+                RenderError::new(
+                    "Type error for `file.template`, string expected",
+                )
+            })?
+            .to_string();
+
         super::render_document(
             &template_path, &self.context, h, r, ctx, rc, out)
     }
diff --git a/components/compiler/src/hbs/helpers/mod.rs b/components/compiler/src/hbs/helpers/mod.rs
index bb155a97..d5de7556 100644
--- a/components/compiler/src/hbs/helpers/mod.rs
+++ b/components/compiler/src/hbs/helpers/mod.rs
@@ -49,6 +49,7 @@ fn get_front_matter_config(file: &PathBuf) -> frontmatter::Config {
     frontmatter::Config::new_markdown(false)
 }
 
+
 fn render_document<'reg: 'rc, 'rc>(
     template_path: &str,
     context: &BuildContext,