From 7ba2237feeffa793a3fe19a39a1e1ec4a0617b63 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Kijewski?= <rene.kijewski@fu-berlin.de>
Date: Fri, 11 Apr 2025 12:23:29 +0200
Subject: [PATCH 1/2] Revert breaking changes

* Revert "`askama_derive` accidentally exposed as a feature"
  * This reverts commit 68fbf93d99207835d9271cdcb447c281a15c2352.
* Revert "If using local variable as value when creating a new variable, do not put it behind a reference"
  * This reverts commit 8081d717d351085cfbb5160dd4e58ad8adc8453b.
* Revert "Describe declaration/ownership when creating a new variable"
  * This reverts commit c76d1a256314d95a2cf644dfa77f9aa26e98d6bd.
---
 askama/Cargo.toml                   |  2 +-
 askama_derive/src/generator/node.rs |  6 +---
 book/src/template_syntax.md         | 10 -------
 testing/tests/vars.rs               | 45 -----------------------------
 4 files changed, 2 insertions(+), 61 deletions(-)

diff --git a/askama/Cargo.toml b/askama/Cargo.toml
index ba0b41dd..5329f449 100644
--- a/askama/Cargo.toml
+++ b/askama/Cargo.toml
@@ -56,7 +56,7 @@ alloc = [
 blocks = ["askama_derive?/blocks"]
 code-in-doc = ["askama_derive?/code-in-doc"]
 config = ["askama_derive?/config"]
-derive = ["dep:askama_derive"]
+derive = ["askama_derive"]
 serde_json = ["std", "askama_derive?/serde_json", "dep:serde", "dep:serde_json"]
 std = [
     "alloc",
diff --git a/askama_derive/src/generator/node.rs b/askama_derive/src/generator/node.rs
index 7c4eea98..06a92918 100644
--- a/askama_derive/src/generator/node.rs
+++ b/askama_derive/src/generator/node.rs
@@ -965,11 +965,7 @@ impl<'a> Generator<'a, '_> {
         }
 
         self.visit_target(buf, true, true, &l.var);
-        // If it's not taking the ownership of a local variable or copyable, then we need to add
-        // a reference.
-        let (before, after) = if !matches!(**val, Expr::Var(name) if self.locals.get(name).is_some())
-            && !is_copyable(val)
-        {
+        let (before, after) = if !is_copyable(val) {
             ("&(", ")")
         } else {
             ("", "")
diff --git a/book/src/template_syntax.md b/book/src/template_syntax.md
index 7da46698..2a809914 100644
--- a/book/src/template_syntax.md
+++ b/book/src/template_syntax.md
@@ -65,16 +65,6 @@ Like Rust, Askama also supports shadowing variables.
 
 For compatibility with Jinja, `set` can be used in place of `let`.
 
-### Borrow rules
-
-In some cases, the value of a variable initialization will be put behind a reference
-to prevent changing ownership. The rules are as follows:
-
- * If the value is an expression of more than one element (like `x + 2`), it WILL NOT BE put behind a reference.
- * If the value is a variable defined in the templates, it WILL NOT BE put behind a reference.
- * If the value has a filter applied to it (`x|capitalize`), it WILL NOT BE put behind a reference.
- * If the value is a field (`x.y`), it WILL BE put behind a reference.
-
 ## Filters
 
 Values such as those obtained from variables can be post-processed
diff --git a/testing/tests/vars.rs b/testing/tests/vars.rs
index 5e3b4325..aac32042 100644
--- a/testing/tests/vars.rs
+++ b/testing/tests/vars.rs
@@ -151,48 +151,3 @@ fn test_not_moving_fields_in_var() {
     };
     assert_eq!(x.render().unwrap(), "a/a");
 }
-
-// Ensure that using a local variable as value when creating
-// another variable will not be behind a reference.
-#[test]
-fn test_moving_local_vars() {
-    #[derive(Template)]
-    #[template(
-        source = r#"
-{%- let a = 1 -%}
-{%- if a == 1 %}A{% endif -%}
-{%- let b = a -%}
-{%- if b == 1 %}B{% endif -%}
-{%- let c = a + 0 -%}
-{%- if c == 1 %}C{% endif -%}
-{% let d = x %}
-{%- if *d == 1 %}D{% endif -%}
-{%- let e = y -%}
-{%- if e == "a" %}E{% endif -%}
-{%- let f = Bla::new() -%}
-{%- if f.x == 0 %}F{% endif -%}
-{%- let g = f.x -%}
-{%- if *g == 0 %}G{% endif -%}
-    "#,
-        ext = "txt"
-    )]
-    struct X {
-        x: u32,
-        y: String,
-    }
-    struct Bla {
-        x: u32,
-    }
-
-    impl Bla {
-        fn new() -> Self {
-            Self { x: 0 }
-        }
-    }
-
-    let x = X {
-        x: 1,
-        y: "a".to_owned(),
-    };
-    assert_eq!(x.render().unwrap(), "ABCDEFG");
-}

From 91c7e89ad5520eb4043ee1672c5186f73c55ab3d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Kijewski?= <rene.kijewski@fu-berlin.de>
Date: Fri, 11 Apr 2025 11:21:53 +0200
Subject: [PATCH 2/2] Bump version number to 0.13.1

---
 askama/Cargo.toml                   | 4 ++--
 askama_derive/Cargo.toml            | 2 +-
 askama_derive_standalone/Cargo.toml | 4 ++--
 bench-build/Cargo.toml              | 6 +++---
 bench-build/README.md               | 4 ++--
 book/src/features.md                | 4 ++--
 examples/actix-web-app/Cargo.toml   | 4 ++--
 examples/axum-app/Cargo.toml        | 4 ++--
 examples/poem-app/Cargo.toml        | 4 ++--
 examples/rocket-app/Cargo.toml      | 4 ++--
 examples/salvo-app/Cargo.toml       | 4 ++--
 examples/warp-app/Cargo.toml        | 4 ++--
 testing-alloc/Cargo.toml            | 4 ++--
 testing-no-std/Cargo.toml           | 4 ++--
 testing-renamed/Cargo.toml          | 4 ++--
 testing/Cargo.toml                  | 6 +++---
 16 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/askama/Cargo.toml b/askama/Cargo.toml
index 5329f449..852f3300 100644
--- a/askama/Cargo.toml
+++ b/askama/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "askama"
-version = "0.13.0"
+version = "0.13.1"
 description = "Type-safe, compiled Jinja-like templates for Rust"
 keywords = ["markup", "template", "jinja2", "html"]
 categories = ["template-engine"]
@@ -27,7 +27,7 @@ harness = false
 itoa = "1.0.11"
 
 # needed by feature "derive"
-askama_derive = { version = "=0.13.0", path = "../askama_derive", default-features = false, optional = true }
+askama_derive = { version = "=0.13.1", path = "../askama_derive", default-features = false, optional = true }
 
 # needed by feature "serde_json"
 serde = { version = "1.0", optional = true, default-features = false }
diff --git a/askama_derive/Cargo.toml b/askama_derive/Cargo.toml
index 5682e372..8c022b2d 100644
--- a/askama_derive/Cargo.toml
+++ b/askama_derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "askama_derive"
-version = "0.13.0"
+version = "0.13.1"
 description = "Procedural macro package for Askama"
 homepage = "https://github.com/askama-rs/askama"
 repository = "https://github.com/askama-rs/askama"
diff --git a/askama_derive_standalone/Cargo.toml b/askama_derive_standalone/Cargo.toml
index 6bb5560c..5f638b61 100644
--- a/askama_derive_standalone/Cargo.toml
+++ b/askama_derive_standalone/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "askama_derive_standalone"
-version = "0.13.0"
+version = "0.13.1"
 description = "Procedural macro package for Askama"
 homepage = "https://github.com/askama-rs/askama"
 repository = "https://github.com/askama-rs/askama"
@@ -23,7 +23,7 @@ required-features = ["__standalone"]
 parser = { package = "askama_parser", version = "=0.13.0", path = "../askama_parser" }
 
 basic-toml = { version = "0.1.1", optional = true }
-pulldown-cmark = { version = "0.12.0", optional = true, default-features = false }
+pulldown-cmark = { version = "0.13.0", optional = true, default-features = false }
 serde = { version = "1.0", optional = true }
 serde_derive = { version = "1.0", optional = true }
 
diff --git a/bench-build/Cargo.toml b/bench-build/Cargo.toml
index 3ff81c7f..bbcdd6ca 100644
--- a/bench-build/Cargo.toml
+++ b/bench-build/Cargo.toml
@@ -1,14 +1,14 @@
 [package]
 name = "bench-build"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["askama-rs developers"]
 edition = "2021"
 rust-version = "1.81"
 publish = false
 
 [dependencies]
-askama = { path = "../askama", version = "0.13.0", default-features = false, features = ["std"] }
-askama_derive = { path = "../askama_derive", version = "0.13.0", features = ["std"] }
+askama = { path = "../askama", version = "0.13.1", default-features = false, features = ["std"] }
+askama_derive = { path = "../askama_derive", version = "0.13.1", features = ["std"] }
 
 [features]
 default = []
diff --git a/bench-build/README.md b/bench-build/README.md
index 9b3263be..12653709 100644
--- a/bench-build/README.md
+++ b/bench-build/README.md
@@ -41,8 +41,8 @@ Without the feature, `cargo` will be able to compile more dependencies in parall
 ```toml
 # Cargo.toml
 [dependencies]
-askama = { version = "0.13.0", default-features = false, features = ["std"] }
-askama_derive = { version = "0.13.0", features = ["std"] }
+askama = { version = "0.13.1", default-features = false, features = ["std"] }
+askama_derive = { version = "0.13.1", features = ["std"] }
 ```
 
 ```rust
diff --git a/book/src/features.md b/book/src/features.md
index 52cc449f..0045fc9a 100644
--- a/book/src/features.md
+++ b/book/src/features.md
@@ -9,7 +9,7 @@ you have to opt-in to the feature [`"serde_json"`](#serde_json):
 
 ```toml
 [dependencies]
-askama = { version = "0.13.0", features = ["serde_json"] }
+askama = { version = "0.13.1", features = ["serde_json"] }
 ```
 
 Please read the [Cargo manual](https://doc.rust-lang.org/cargo/reference/features.html#dependency-features)
@@ -28,7 +28,7 @@ You can opt-out of using the feature flags by using
 
 ```toml
 [dependencies]
-askama = { version = "0.13.0", default-features = false }
+askama = { version = "0.13.1", default-features = false }
 ```
 
 Without `default-features = false`, i.e with default features enabled,
diff --git a/examples/actix-web-app/Cargo.toml b/examples/actix-web-app/Cargo.toml
index 1f9286a9..851b0d3f 100644
--- a/examples/actix-web-app/Cargo.toml
+++ b/examples/actix-web-app/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web-app"
-version = "0.13.0"
+version = "0.13.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
@@ -9,7 +9,7 @@ publish = false
 # and actix-web as your web-framework.
 [dependencies]
 actix-web = { version = "4.9.0", default-features = false, features = ["macros"] }
-askama = { version = "0.13.0", path = "../../askama" }
+askama = { version = "0.13.1", path = "../../askama" }
 tokio = { version = "1.43.0", features = ["macros", "rt-multi-thread"] }
 
 # serde and strum are used to parse (deserialize) and generate (serialize) information
diff --git a/examples/axum-app/Cargo.toml b/examples/axum-app/Cargo.toml
index 79e83924..8904173d 100644
--- a/examples/axum-app/Cargo.toml
+++ b/examples/axum-app/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "axum-app"
-version = "0.13.0"
+version = "0.13.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
@@ -8,7 +8,7 @@ publish = false
 # This is an example application that uses both askama as template engine,
 # and axum as your web-framework.
 [dependencies]
-askama = { version = "0.13.0", path = "../../askama" }
+askama = { version = "0.13.1", path = "../../askama" }
 axum = "0.8.1"
 tokio = { version = "1.43.0", features = ["macros", "rt-multi-thread"] }
 
diff --git a/examples/poem-app/Cargo.toml b/examples/poem-app/Cargo.toml
index 5a602cc0..c8497698 100644
--- a/examples/poem-app/Cargo.toml
+++ b/examples/poem-app/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "poem-app"
-version = "0.13.0"
+version = "0.13.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
@@ -8,7 +8,7 @@ publish = false
 # This is an example application that uses both askama as template engine,
 # and poem as your web-framework.
 [dependencies]
-askama = { version = "0.13.0", path = "../../askama" }
+askama = { version = "0.13.1", path = "../../askama" }
 poem = "3.1.6"
 tokio = { version = "1.43.0", features = ["macros", "rt-multi-thread"] }
 
diff --git a/examples/rocket-app/Cargo.toml b/examples/rocket-app/Cargo.toml
index 28caddba..db1cdc97 100644
--- a/examples/rocket-app/Cargo.toml
+++ b/examples/rocket-app/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web-app"
-version = "0.13.0"
+version = "0.13.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
@@ -8,7 +8,7 @@ publish = false
 # This is an example application that uses both askama as template engine,
 # and rocket as your web-framework.
 [dependencies]
-askama = { version = "0.13.0", path = "../../askama" }
+askama = { version = "0.13.1", path = "../../askama" }
 rocket = "0.5.1"
 
 # strum is used to parse and serialize information between web requests,
diff --git a/examples/salvo-app/Cargo.toml b/examples/salvo-app/Cargo.toml
index bf529765..a300a73d 100644
--- a/examples/salvo-app/Cargo.toml
+++ b/examples/salvo-app/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "salvo-app"
-version = "0.13.0"
+version = "0.13.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
@@ -8,7 +8,7 @@ publish = false
 # This is an example application that uses both askama as template engine,
 # and salvo as your web-framework.
 [dependencies]
-askama = { version = "0.13.0", path = "../../askama" }
+askama = { version = "0.13.1", path = "../../askama" }
 salvo = { version = "0.76.0", default-features = false, features = ["http1", "logging", "server"] }
 tokio = { version = "1.43.0", features = ["macros", "rt-multi-thread"] }
 
diff --git a/examples/warp-app/Cargo.toml b/examples/warp-app/Cargo.toml
index f3fed2aa..728951b3 100644
--- a/examples/warp-app/Cargo.toml
+++ b/examples/warp-app/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web-app"
-version = "0.13.0"
+version = "0.13.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
@@ -8,7 +8,7 @@ publish = false
 # This is an example application that uses both askama as template engine,
 # and actix-web as your web-framework.
 [dependencies]
-askama = { version = "0.13.0", path = "../../askama" }
+askama = { version = "0.13.1", path = "../../askama" }
 http = "0.2.12"
 tokio = { version = "1.43.0", features = ["macros", "rt-multi-thread"] }
 warp = "0.3.7"
diff --git a/testing-alloc/Cargo.toml b/testing-alloc/Cargo.toml
index 1fa8401c..3e750b3e 100644
--- a/testing-alloc/Cargo.toml
+++ b/testing-alloc/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "askama_testing-alloc"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["askama-rs developers"]
 edition = "2021"
 rust-version = "1.81"
 publish = false
 
 [dev-dependencies]
-askama = { path = "../askama", version = "0.13.0", default-features = false, features = ["alloc", "derive"] }
+askama = { path = "../askama", version = "0.13.1", default-features = false, features = ["alloc", "derive"] }
 
 assert_matches = "1.5.0"
diff --git a/testing-no-std/Cargo.toml b/testing-no-std/Cargo.toml
index 90f621d5..26ed39a5 100644
--- a/testing-no-std/Cargo.toml
+++ b/testing-no-std/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "askama_testing-no-std"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["askama-rs developers"]
 edition = "2021"
 rust-version = "1.81"
 publish = false
 
 [dev-dependencies]
-askama = { path = "../askama", version = "0.13.0", default-features = false, features = ["derive"] }
+askama = { path = "../askama", version = "0.13.1", default-features = false, features = ["derive"] }
 
 assert_matches = "1.5.0"
diff --git a/testing-renamed/Cargo.toml b/testing-renamed/Cargo.toml
index 971b7299..08efc4fe 100644
--- a/testing-renamed/Cargo.toml
+++ b/testing-renamed/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "askama_testing-renamed"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["askama-rs developers"]
 edition = "2021"
 rust-version = "1.81"
 publish = false
 
 [dev-dependencies]
-some_name = { package = "askama", path = "../askama", version = "0.13.0", default-features = false, features = ["derive"] }
+some_name = { package = "askama", path = "../askama", version = "0.13.1", default-features = false, features = ["derive"] }
 
 assert_matches = "1.5.0"
diff --git a/testing/Cargo.toml b/testing/Cargo.toml
index 76620f9a..192fb757 100644
--- a/testing/Cargo.toml
+++ b/testing/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "askama_testing"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["askama-rs developers"]
 edition = "2021"
 rust-version = "1.81"
@@ -15,7 +15,7 @@ name = "normalize_identifier"
 harness = false
 
 [dependencies]
-askama = { path = "../askama", version = "0.13.0" }
+askama = { path = "../askama", version = "0.13.1" }
 
 serde_json = { version = "1.0", optional = true }
 
@@ -23,7 +23,7 @@ serde_json = { version = "1.0", optional = true }
 core = { package = "intentionally-empty", version = "1.0.0" }
 
 [dev-dependencies]
-askama = { path = "../askama", version = "0.13.0", features = ["blocks", "code-in-doc", "serde_json"] }
+askama = { path = "../askama", version = "0.13.1", features = ["blocks", "code-in-doc", "serde_json"] }
 
 assert_matches = "1.5.0"
 criterion = "0.5"