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Remove redundant len check around loop (#27464)

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This pull request is a minor code cleanup.

From the Go specification (https://go.dev/ref/spec#For_range):

> "1. For a nil slice, the number of iterations is 0."
> "3. If the map is nil, the number of iterations is 0."

`len` returns 0 if the slice or map is nil
(https://pkg.go.dev/builtin#len). Therefore, checking `len(v) > 0`
before a loop is unnecessary.

---

At the time of writing this pull request, there wasn't a lint rule that
catches these issues. The closest I could find is
https://staticcheck.dev/docs/checks/#S103

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This commit is contained in:
Eng Zer Jun 2023-10-06 14:49:37 +08:00 • committed by GitHub
parent 6cdeb7798b
commit 13d5d2e711
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 31 additions and 45 deletions
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12
services/pull/pull.go
View file

@ -152,14 +152,12 @@ func NewPullRequest(ctx context.Context, repo *repo_model.Repository, issue *iss
if issue.Milestone != nil {
notify_service.IssueChangeMilestone(ctx, issue.Poster, issue, 0)
}
if len(assigneeIDs) > 0 {
for _, assigneeID := range assigneeIDs {
assignee, err := user_model.GetUserByID(ctx, assigneeID)
if err != nil {
return ErrDependenciesLeft
}
notify_service.IssueChangeAssignee(ctx, issue.Poster, issue, assignee, false, assigneeCommentMap[assigneeID])
for _, assigneeID := range assigneeIDs {
assignee, err := user_model.GetUserByID(ctx, assigneeID)
if err != nil {
return ErrDependenciesLeft
}
notify_service.IssueChangeAssignee(ctx, issue.Poster, issue, assignee, false, assigneeCommentMap[assigneeID])
}
return nil