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realize: rewrite suspicious append with assignment #216

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realize: rewrite suspicious append with assignment #216

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quasilyte
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@quasilyte quasilyte commented Sep 14, 2018

The append in form of a = append(b, ...) is suspicious
due to mistatching a and b.

In this particular case, there is a subtle syntax-level
difference due to embedding, but same field is being assigned,
so more "safe" looking code is something like:

`r.Projects = append(r.Projects, Project{exit: make(chan os.Signal, 1)})`

But even better, this can be re-written as assignment, without append.

The append in form of `a = append(b, ...)` is suspicious
due to mistatching `a` and `b`.

In this particular case, there is a subtle syntax-level
difference due to embedding, but same field is being assigned,
so more "safe" looking code is something like:

	r.Projects = append(r.Projects, Project{exit: make(chan os.Signal, 1)})

But even better, this can be re-written as assignment, without append.
@@ -11,7 +11,7 @@ import (

func TestRealize_Stop(t *testing.T) {
r := Realize{}
r.Projects = append(r.Schema.Projects, Project{exit: make(chan os.Signal, 1)})
r.Projects = []Project{exit: make(chan os.Signal, 1)}

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This is actually a syntax error now. You're building an slice but only have one pair of brackets. It should be:

 	r.Projects = []Project{{exit: make(chan os.Signal, 1)}}

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My mistake, thanks.
Used github UI to edit the code.

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2 participants