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>
1 file changed
tree: 8e6dfbbc42458dfd1f5bceba63c6f47dae9ee3a5
  1. examples/
  2. qg/
  3. qg-cli/
  4. tools/
  5. .gitignore
  6. Cargo.toml
  7. rustfmt.toml