commit 97e859671891e77522ff2ef96416693eada3ffec
author Erik Gilling <konkers@google.com> Sat Jan 07 00:33:59 2023 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Sat Jan 07 00:33:59 2023 +0000
tree 8e6dfbbc42458dfd1f5bceba63c6f47dae9ee3a5
parent 9037d97aa1f6155063ef8ba28b7207a8aec21d95

Use an `ExactSizeIterator` for target dependency enumeration

Allows code to check `target.dependencies().len()`.

Change-Id: I44c0a616e06928764ffbf744ff3eb5a6fd2888c8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/qg/+/126256
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Erik Gilling <konkers@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>

qg/src/target.rs

diff --git a/qg/src/target.rs b/qg/src/target.rs
index c0c244d..1894f7c 100644
--- a/qg/src/target.rs
+++ b/qg/src/target.rs
@@ -247,7 +247,7 @@
     }
 
     /// Returns the package's dependencies.
-    pub fn dependencies(&self) -> impl Iterator<Item = &str> {
+    pub fn dependencies(&self) -> impl ExactSizeIterator<Item = &str> {
         self.dependencies.iter().map(String::as_str)
     }