From 7e9357795a9259ca41eee7249441a920fab8db2f Mon Sep 17 00:00:00 2001
From: vallentin <mail@vallentin.dev>
Date: Tue, 29 Dec 2020 23:02:17 +0100
Subject: Added error to hint enabling serde features

---
 askama_shared/src/generator.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'askama_shared')

diff --git a/askama_shared/src/generator.rs b/askama_shared/src/generator.rs
index b5f98ec..f32542a 100644
--- a/askama_shared/src/generator.rs
+++ b/askama_shared/src/generator.rs
@@ -1184,6 +1184,15 @@ impl<'a, S: std::hash::BuildHasher> Generator<'a, S> {
             return Ok(DisplayWrap::Unwrapped);
         }
 
+        #[cfg(not(feature = "json"))]
+        if name == "json" {
+            return Err("the `json` filter requires the `serde-json` feature to be enabled".into());
+        }
+        #[cfg(not(feature = "yaml"))]
+        if name == "yaml" {
+            return Err("the `yaml` filter requires the `serde-yaml` feature to be enabled".into());
+        }
+
         if name == "escape" || name == "safe" || name == "e" || name == "json" {
             buf.write(&format!(
                 "::askama::filters::{}({}, ",
-- 
cgit