Allow lifetime annotations in type_expression.

Fixes #106.

CHANGELOG.md

@@ -11,13 +11,16 @@ project adheres to
 
 * Breaking change: The generated template functions have a simpler
   signature.
+* Allow litetimes in template argument types.  Issue #106.
 * Improve error handling in optional warp support, PR #109.
 * Current stable rust is 1.57, MSRV is now 1.46.0.
 * Update nom dependency to 7.1.0.
 * Update optional rsass to 0.23.0.
 * Update env_logger to 0.9 and gotham to 0.7.1 in examples
 * Dropped support for warp 0.2 (the warp02 feature and example).
 
+Thanks to @JojiiOfficial for reporting #106.
+
 
 ## Release 0.13.4 - 2021-06-25
 

examples/simple/src/main.rs

@@ -320,3 +320,12 @@ fn test_issue_68() {
         "Hello!\n\nThe 0 number.\n\nThe 1 number.\n\nThe 2 number.\n\nGood bye!\n",
     );
 }
+
+/// [Issue #106](https://github.com/kaj/ructe/issues/106)
+#[test]
+fn lifetimes() {
+    assert_eq!(
+        r2s(|o| with_lifetime(o, &["foo", "bar"])),
+        "\n  <p>foo</p>\n\n  <p>bar</p>\n\n",
+    );
+}

examples/simple/templates/with_lifetime.rs.html

@@ -0,0 +1,6 @@
+@* There can be lifetime annotations in argument types. *@
+@(arg: &[&'static str])
+
+@for x in arg {
+  <p>@x</p>
+}

src/template.rs

@@ -131,6 +131,7 @@ fn type_expression(input: &[u8]) -> PResult<()> {
     map(
         tuple((
             alt((tag("&"), tag(""))),
+            opt(delimited(spacelike, tag("'"), rust_name)),
             delimited(
                 spacelike,
                 alt((tag("impl"), tag("dyn"), tag(""))),