Preallocate slice
Recipe ID
org.openrewrite.golang.codequality.PreallocateSliceArtifactgithub.com/moderneinc/recipes-goAdd a capacity to a slice made empty and then filled by appending over a range, so out := make([]int, 0) before for _, x := range xs becomes make([]int, 0, len(xs)). The capacity is a hint, so only the allocation changes.
Single recipeProprietary
Usage
This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.
mod run . --recipe org.openrewrite.golang.codequality.PreallocateSliceIf the recipe isn’t available locally, install it with:
mod config recipes go install github.com/moderneinc/recipes-go