== Why is this an issue?

Initializing a vector with a chain of ``++push++`` invocations is less efficient than making the initialization with a single vector literal. Each invocation has a cost in itself.

On top of the performance argument, the vector literal is more concise and easier to read.

== How to fix it

Introduce a single vector literal that includes all the elements that are added to the vector as arguments of the ``++push++`` invocations.

=== Code examples

==== Noncompliant code example

[source,rust,diff-id=1,diff-type=noncompliant]
----
let mut v = Vec::new();
v.push(0);
v.push(1);
v.push(2);
----

==== Compliant solution

[source,rust,diff-id=1,diff-type=compliant]
----
let v = vec![0, 1, 2];
----

== Resources

=== Documentation

* Clippy Lints - https://rust-lang.github.io/rust-clippy/master/index.html#vec_init_then_push